JPH08296441A - Internal combustion engine with reduced combustion chamber - Google Patents

Abstract

PURPOSE: To significantly reduce the exhaust loss of an engine by providing a piping for obtaining a high temperature in the inside of a collective exhaust pipe positioned in the rear part of an exhaust turbine for recovering an exhaust heat quantity into hot water, and by separately injecting fuel and hot water into a reduced main combustion chamber by means of a fuel/hot-water injector. CONSTITUTION: Fuel and hot water are injected into a reduced main combustion chamber 21 from the side of a bypass check valve 13 for explosively burning, and also the reduced main combustion chamber 21 is isolated up to 55 deg. before and after the top dead center, and approximated isovolumetric/isothermal combustion is maintained for a long period of time for increasing the injection quantity of fuel 36 and hot water 34. An exhaust turbine 27 is operated by the exhaust from a power combustion chamber 6, and also a generator-motor 35 and an air compressor 40 are operated for supercharging, and the exhaust is cooled in the inside of a collective exhaust pipe 28, and after the steam has been condensed and purified, it is reserved in a hot-water tank 30. The hot water 34 in the hot-water tank 30 is circulated by a hot-water pump 31 through a hot-water piping 33, a hot-water injection pump 32, and hot-water injection valve 54, and further circulated through a fuel/hot-water injector 10, the reduced main combustion chamber 21, and the power combustion chamber 6, and is circulated to the hot-water tank 30 through the exhaust turbine 27 and the collective exhaust pipe 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a compact combustion chamber internal combustion system in which a combustion chamber and a piston are deformed to separate the main combustion chamber and the output combustion chamber only in the vicinity of the top dead center to maintain approximate constant volume combustion for a long time. Regarding a continuation application of a combustion chamber of an engine and a combustion method (Japanese Patent Application No. 6-196341), an exhaust pipe and a fuel injector and combustion for circulating and using exhaust heat quantity which enables a 4-cycle engine mainly as 2 cycles by heat exchange. Concerning the law.

[0002]

2. Description of the Related Art Establishing a technology for reducing exhaust gas pollution, including automobiles, as soon as possible, is urgently needed to reduce pollution such as global warming prevention as a vehicle with low exhaust gas, and is supported by the majority. Although it is a textbook, it is now an urgent task to overcome that idea. In other words, various crank engines will be the conventional technology.

[0003]

A compact combustion chamber internal combustion engine of a compact two-stage reciprocating biston / contractive two-stage combustion chamber that changes the way of thinking and reduces the output near the top dead center to reduce the scavenging efficiency. A 2-stroke multi-cylinder large stroke volume high speed rotation with a dramatically simple structure and low pollution low fuel consumption low vibration low friction loss high supercharging high compression ratio high combustion pressure small size light weight large output long life at the same time The purpose of the present invention is to reduce the cooling loss and the exhaust loss at the same time by converting the heat energy of the superheated steam to a lower temperature to enable the exhaust heat quantity to be regenerated and recycled and to perform adiabatic non-cooling at the same time.

[0004]

SUMMARY OF THE INVENTION Therefore, according to the present invention, the cross-sectional area of the combustion chamber is reduced only near the top dead center to reduce it to, for example, 1/20 to form a reduced reciprocating piston. A small reciprocating piston is composed of a compressed main combustion chamber and a compressed piston on the verge of approaching the dead center (around 55 ° in crank angle), and the compressed main combustion chamber has a 1/20 cross section due to the difference in compression ratio. Almost all of the air in the output combustion chamber with a cross section of 19/20 is injected positively mainly from the near path check valve side until the top dead center, and the fuel and air injected from the fuel / hot water injector are injected. High-speed agitation compression ignition explosive combustion, and at the time of explosive combustion, the reverse flow is blocked by a short-circuit check valve to isolate the compact main combustion chamber, and the reverse injection from the compact small reciprocating piston is suitable for the application. As the amount, adjust the output near top dead center and the output piston moves to the bottom dead center side. At this time, the volume increase of the compact main combustion chamber is reduced to 1/20, etc., and the optimum combustion conditions (combustion temperature 2000 ° C or less, combustion temperature turbulence maximum ) Burning time 5 times to 10
Double the time, complete combustion early termination, and increase the injection amount of superheated steam or hot water to largely convert the high temperature combustion gas temperature to the low temperature heated steam mass, and to increase the crank angle to 55 degrees after top dead center. When it reaches around °, it is injected into the output piston at high speed from the contracted main combustion chamber as velocity type volumetric dynamic pressure energy, greatly increasing the maximum rotational force and dramatically reducing the heat load and allowing adiabatic no cooling. To bring cooling loss and exhaust loss to near zero.

In order to bring cooling loss to near zero as adiabatic no cooling, and to greatly reduce exhaust loss by recycling exhaust heat to hot water and circulating it, the exhaust calorie is changed to velocity type volumetric dynamic pressure energy. In order to drive the output piston and the exhaust turbine as a high supercharged engine and convert it to rotary power, it is best to convert it to steam energy that has a small volume and is easy to compress, and 1700 times as much as 1 atmospheric pressure during evaporation. Therefore, in order to convert to a large amount of superheated steam mass as much as possible, it becomes a hot water regeneration circulation use of the exhaust heat quantity, and the hot water injection groove containing the superheated steam is provided on the outer circumference of the fuel / hot water injector. Inject as much as possible. Therefore, a pipe for obtaining hot water as hot as possible is mainly installed inside the collective exhaust pipe at the rear of the exhaust turbine to regenerate the exhaust heat quantity into hot water, and the fuel / hot water injector injects fuel into the compact main combustion chamber. By injecting hot water separately, both the injection amount of hot water and fuel is maximized, the regeneration circulation amount of exhaust heat is maximized, and exhaust loss is greatly reduced.

[0006]

[Function] When evaluating a compact combustion chamber internal combustion engine with the idea of a textbook, it is the worst idea because it reduces the output near the top dead center and lowers the scavenging efficiency. However, reversing the idea can solve any concern. I will. For example, if the output near the top dead center of the compression ignition engine is reduced to a value near the top dead center below the spark ignition engine, complete combustion early termination due to sustained constant volume combustion, and NOx reduction due to hot water mixed injection hand,
The maximum bearing load can be reduced to below the spark ignition engine and vibration and noise can be reduced to below the spark ignition engine, and the maximum rotational force is greatly increased in the velocity-type dynamic pressure energy due to the increase in superheated steam mass. (Combustion gas mass volume +
Since the mass volume of superheated steam can be injected into the output piston at high speed, the speed type dynamic pressure energy has the great effect of obtaining low fuel consumption, large torque and lightweight output.

NOx is also reduced by replacing normal water injection with hot water injection, but in the normal combustion method, the combustion time under the best combustion conditions is very short, and the purpose is NO.
Since the combustion method is limited to the lower limit of x, it cannot be used for adiabatic uncooling or regenerative circulation of exhaust calorie, but in the compact combustion chamber combustion method, the best combustion condition is achieved by the approximate constant volume combustion long-lasting. The combustion time can be extended from 5 times to 10 times, so it has a great effect to bring the untwisted portion to almost nothing. In addition, it is a full-scale combustion method aiming to eliminate exhaust loss and cooling loss. In addition to operating the exhaust turbine, it is possible to reduce exhaust loss and to eliminate cooling loss by adiabatic non-cooling, by using hot water regeneration circulation use of exhaust heat and converting it into low-temperature superheated steam mass volume energy. ,
It is a great effect that can be dealt with in full scale, such as measures against rust generation and dilution by mixing water and additives into fuel and lubricating oil.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A compact combustion chamber internal combustion engine will be described with reference to FIG. 1. Approximate constant volume isothermal combustion is maintained for a long time to convert a high temperature combustion gas temperature into a low temperature superheated steam mass and NO.
In order to reduce x greatly and bring cooling loss to almost zero, and also exhaust loss to be greatly reduced, the contracted main combustion chamber 21 and the contracted piston 22 are projected to form the contracted shape of the inlet of the contracted main combustion chamber 21. Is set to, for example, 1/20 of the cross-sectional area of the output combustion chamber 6, and due to the difference in compression ratio, almost all of the air 37 in the output combustion chamber 6 having a 19/20 cross-sectional area has a 1/20 cross-sectional area. Contraction 9
Is injected from the short-circuit check valve 13 side into the compact main combustion chamber 21 with the inlet as an inlet to explode and burn, and the compact main combustion chamber 21 is isolated up to about 55 ° before and after top dead center to obtain an approximate constant volume isothermal. The combustion amount lasts for a long time, and the injection amount of the fuel 36 and the hot water 34 is greatly increased. At the same time, the exhaust heat amount is regenerated into high temperature hot water mainly in the collective exhaust pipe 28 in order to largely convert the exhaust heat amount into high temperature hot water. Used in circulation. Therefore, the exhaust turbine 27 is operated by the exhaust gas from the output combustion chamber 6, and the power generation / motor 35 and the air compressor 40 are also operated to perform supercharging and the like.
The exhaust gas is cooled in 8 and the steam is condensed and purified and then stored in the hot water tank 30. The hot water 34 of the hot water tank 30 is circulated through the hot water injection pump 32 and the hot water injection valve 54 by the hot water pump 31 through the hot water pipe 33, and the fuel / hot water injector 10, the compact main combustion chamber 21, and the output combustion. It circulates in the chamber 6 and circulates from the exhaust turbine 27 and the collective exhaust pipe 28 to the hot water tank 30. That is, the exhaust heat regeneration circulation shown in Fig. 1 is an example.

The supplementary hot water pipe 58 will be described with reference to FIG. 1. The supplementary hot water pipe 58 has an approximate coil shape in the collective exhaust pipe 28 of any shape or in the vertical exhaust pipe 26 (chimney, etc.). It is provided as a pipe 29 and communicates with the hot water tank 30 side and the makeup water pump 60 and the makeup hot water tank 59 side to easily circulate the makeup water in the approximate coil pipe 29 to obtain the makeup hot water. Select piping and use hot water as heat.

Referring to FIGS. 1 and 2, a fuel / hot water injector 1
Regarding 0, the most important thing in the compact combustion chamber internal combustion engine is the compact combustion chamber combustion method, and there is an urgent need to establish a combustion method that ideally burns all gas liquid fuels. Therefore, any fuel injected from the fuel / hot water injector 10 is ideally burned by hot water injection of superheated steam and similar constant volume isothermal combustion for a long time.
(A) shows a fuel injection nozzle 5 having a diameter increased by using the nozzle needle 14 as a normal automatic opening / closing hole type or pin type nozzle or the like.
2, the fuel passage 15 and the fuel injection port 50 are provided as usual, a multiple groove 45 is provided in the lower outer diameter side axial direction, a cylindrical outer jacket 39 is attached to the outside thereof, and a large number of hot water injection injection ports 38 are provided. , The upper part is connected and the hot water passage 53 is connected to the hot water pipe 33 side.

(B) is almost the same as (A), but the difference is that a part of the injection speed of the hot water 34 is converted into a rotation speed and the wet steam is collected on the outer periphery of the combustion chamber. Instead, a multi-threaded screw groove 46 is provided and a cylindrical outer jacket 39 is provided on the outer side thereof.
It is a place where a lot of hot water jets 38 are installed by installing.
(C) is almost the same as (B), but the difference is that the injection speed of the hot water is converted to a higher rotation speed to attach the wet steam to the outer periphery of the combustion chamber and cause the internal air to rotate. In place of the multi-threaded screw groove 46, a double-threaded screw groove 47 is provided, and a cylindrical outer jacket 39 is attached to the outer side of the multi-threaded screw groove 47, and the hot water injection port 3
It is a place with 2 injection ports of 8. (D) is almost the same as (C), but the difference is that the injection speed of hot water is further converted to a rotation speed to make wet steam adhere strongly to the outer periphery of the combustion chamber and to make a strong rotational movement of the internal air. Therefore, instead of the double thread groove 47, the single thread groove 55 is provided, and the cylindrical outer jacket 39 is attached to the outer side of the single thread groove 55, and the hot water injection port 38 is used as one injection port.

Explaining the compact main combustion chamber 21 with reference to FIGS. 1 and 3 (Λ), the exhaust calorific value is set to the hot water in order to make the crank type internal combustion engine adiabatic and uncooled so that cooling loss becomes almost zero. It is essential to convert the superheated steam mass volume energy of low temperature into both the exhaust gas and the NOx in order to greatly reduce exhaust loss and NOx by using the recirculation and circulation for the No. 34. The approximate constant volume isothermal combustion is maintained for a long time under the conditions to complete the complete combustion in a short period of time, and it is converted into a large amount of superheated steam mass, but in order to make cooling loss and exhaust loss almost zero, hot water as hot as possible Three
It is better to inject a large amount of 4, and since the contracted shape 9 is likely to be dry-sliding and the temperature is good, the heat-resistant low-friction material is used for the contracted shape 9 and the hot water pipe 33 is incorporated in a coil shape to absorb heat. To lower the temperature, one of the high temperature side pipes is connected to the fuel / hot water injector 10 side via the hot water injection valve 54 or the like, and the other side is connected to the hot water tank 30 side via the hot water injection pump 32 or the like. , A heat insulating material 4 on the cylinder cover 7a having a plurality of short-circuit check valves 13.
It is fixed through 8, and the upper and outer sides are inclined conically to form one side of various airflow injection holes such as rotating airflow, and the retractable piston 22 can be slidably accommodated inside.

That is, the compact 9 and the compact piston 22 constitute a compact small reciprocating piston up to a crank angle of about 55 ° before and after the top dead center, and the compact main combustion chamber 21 and the output combustion chamber 6 are isolated from each other and approximately determined. Although isothermal combustion lasts for a long time, in order to ideally burn any gaseous liquid fuel and maximize the injection amount of hot water 34, a heat insulating coating was included inside the cylinder cover 7b to reduce heat conduction. By insulating and fixing the cylindrical main combustion chamber 21 with the heat insulating material 48, heat leakage is prevented and the wet steam attached due to the rise in the temperature of the main combustion chamber wall is rapidly vaporized and evaporated. .
Then, in order to configure the rotary airflow injection hole 24 or the like at the lower end thereof, the lower end is conically expanded in accordance with the taper of the contracted shape 9 and a groove to be the rotary airflow injection hole 24 or the like is provided on the inner surface of the cylinder cover 7a. The air distribution hole 49, the rotary airflow injection hole 24, and the like are formed by being fixed and communicating with the short-circuit check valve 13.
At the time of normal compression injection, a large number of rotating airflows or the like are jetted from the rotating airflow injection holes 24 or the like through the short-circuit check valve 13 and the air distribution hole 49 over the entire circumference, and at the time of explosive combustion, the check valve 13 prevents the reverse flow. Isolates the compact combustion chamber 21 to maintain approximate constant volume isothermal combustion for a long time.

The compact main combustion chamber 21 will be described with reference to FIGS. 1 and 3 (A) and (A '). The compact combustion chamber compression ignition hot water using gas fuel such as natural gas and light oil. When used as an injection gas engine, the compact main combustion chamber can be subject to various changes, so that the gas fuel injector 6 is placed at the optimum position as shown in (A ').
In order to easily install the required number of 7, gas fuel is injected and stirred and mixed near 60 ° at the crank angle before top dead center by an air flow such as a rotary air flow that is injected at high speed through the short-circuit check valve 13,
As shown in (A), light oil is injected in the opposite direction to perform compression ignition combustion, but the light oil particles of the ignition source can be diffused in a wide range by the penetration force and can be used as a large number of ignition sources. Since the combustion gas vibrates violently, there is a great effect of bringing the unburned component to almost nothing by rapid combustion, and since turbulence is insufficient from the middle to the latter part of the combustion and it becomes an approximate constant volume high temperature combustion, turbulence is regenerated and combustion is performed. As it accelerates and near constant volume isothermal combustion continues for a long time, and NOx becomes almost nonexistent, hot water is injected from the fuel / hot water injector 10 to achieve the purpose, and unburned component is also completely eliminated to make it lightweight and large. In order to achieve low fuel consumption, the diameter of the output combustion chamber 6 is dramatically increased, and the combustion gas temperature higher than that of the compact main combustion chamber 21 is largely converted into superheated steam mass to output combustion as velocity type volume dynamic energy. High-speed injection into the chamber Maximum rotation force baked gas and air with high speed stirring-mixing combustion also by large increases, and lightweight high output low fuel consumption low pollution two-stroke Chijimigata combustion chamber gas injection compression ignition hot water injection internal combustion engine.

The compact main combustion chamber 21 will be described with reference to FIGS. 1 and 3 (A '). As a compact combustion chamber spark ignition lean burn hot water injection gas engine using gas fuel such as natural gas. Even when it is used, the contracted main combustion chamber can be changed in many ways. As shown in (A '), the required number of gas fuel injectors 67, spark plugs / hot water injectors 68 and spark plugs 69 are attached, and any desired The injection amount control and the injection timing control of the gas fuel at or near 60 ° at the crank angle before top dead center by the air injection flow that matches the gas characteristics such as the rotating airflow that is injected at high speed through the short-circuit check valve 13. Then, the mixture is injected and agitated to form a target air-fuel mixture field in the vicinity of the spark plug in all operating ranges, and spark ignition stratified charge combustion is performed at the optimum time, and turbulence is insufficient from the middle to the latter stages of combustion under heavy load. However, since it is a high-temperature combustion with an approximate constant volume, the A spark plug / hot water injector 68 is provided to control hot water injection to inject hot water at high temperature and high pressure to regenerate turbulence to accelerate combustion, and to perform approximate constant volume isothermal combustion that does not generate NOx. In order to keep the unburned components and NOx almost zero for a long time, and to dramatically reduce the diameter of the output combustion chamber 6 in order to achieve light weight, large output, low fuel consumption and low pollution, the compact main combustion chamber 21 allows the combustion gas temperature of high temperature to be increased. Is converted into superheated steam mass and injected into the output combustion chamber at high speed as velocity-type volumetric dynamic energy, and high-temperature combustion gas is further mixed with air by high-speed agitation to simultaneously increase the maximum rotational force. Light weight, high output, low fuel consumption, low pollution 2-cycle compact combustion chamber Gas injection Spark ignition Lean combustion Hot water injection Internal combustion engine.

The compact main combustion chamber 21 will be described with reference to FIGS. 1 and 3 (A) and (A '). Using gasoline as a compact combustion chamber spark ignition lean burn hot water injection gasoline engine In this case, however, the compact main combustion chamber can be subject to various changes.
With the hot water injector 10 and the spark plug 69 attached, gasoline is opposed to an air jet flow such as a rotary air flow that is jetted at high speed through an optional short-circuit check valve 13 at a crank angle before top dead center of about 60 ° or After the vicinity, injection amount control and injection timing control are performed to mix and stir the mixture to form a target air-fuel mixture field near the spark plug in the entire operating range, and spark ignition stratified charge combustion is performed at the optimum time to perform heavy load. Since the turbulence is insufficient from the middle to the latter half of the combustion and the combustion becomes an approximate constant volume high temperature combustion, the hot water of high temperature and high pressure is injected to regenerate the turbulence to accelerate the combustion, and the approximate constant volume isothermal combustion that does not generate NOx is performed. Unburned and NOx persisting for a long time
In order to achieve light weight, large output, and low fuel consumption, the output combustion chamber 6 is dramatically expanded in diameter, and the high temperature combustion gas temperature is largely converted to superheated steam mass by the compact main combustion chamber 21. High-speed injection into the output combustion chamber as positive-displacement dynamic pressure energy, high-temperature combustion gas with high-speed agitation mixed combustion, and at the same time the maximum rotational force also greatly increases, resulting in a lightweight, high-output, low fuel consumption, low-pollution two-cycle compression. Shaped combustion chamber Gasoline injection Spark ignition Lean combustion Hot water injection Internal combustion engine.

The contracted main combustion chamber 21 will be described with reference to FIGS. 1 and 3B. The contracted small reciprocating piston is composed of the contracted 9 and the contracted piston 22 up to about 55 ° in crank angle before and after top dead center. The compressed main combustion chamber 21 and the output combustion chamber 6 are separated from each other to maintain the approximate constant volume isothermal combustion for 5 hours to 10 times longer than usual under the best combustion conditions, but any gas In order to ideally burn the liquid fuel and maximize the injection amount of the hot water, the cylindrical reduced main combustion chamber 21 that incorporates the hot water pipe 33 in a coil shape inside the cylinder cover 7b to absorb heat. Is provided with a heat insulating material 48 to be fixedly connected to each other to connect the hot water pipes 33 to each other, and the lower end is enlarged in a conical shape in accordance with the taper of the contraction 9 in order to configure the stirring airflow injection hole 25 and the like at the lower end. Grooves that become the stirring airflow injection holes 25, etc. on the inner surface An air distribution hole 49 and a stirring airflow injection hole 25, which are provided and fixed to the cylinder cover 7a and communicated with the short-range check valve 13, and the agitated airflow injection hole 25 are configured, and the short-range check valve 13 and the air distribution hole are provided at the time of normal compression injection. Stirring air flow injection hole 2 through 49
A large number of jets of agitation airflow etc. are jetted all around from 5 etc., and in the case of explosive combustion, the short-circuit check valve 13 is used to prevent backflow and the reduced main combustion chamber 2
Isolate 1 to maintain approximate constant volume isothermal combustion for a long time.

The compact main combustion chamber 21 will be described with reference to FIGS. 1 and 3C.

[0012]

Although it is almost the same as the above description, the heat insulating pipe 4 is a cylindrical compact main combustion chamber 21 for absorbing heat by piping a hot water pipe 33 inside the inner wall of the cylinder cover 7b.
8 is heat-insulated and fixed, and in order to form the straight-flow airflow injection hole 23 and the like at its lower end, the lower end is enlarged conically in accordance with the taper of the contracted shape 9 and the straight-flow airflow injection hole 2 is formed on the inner surface thereof.
By providing grooves such as 3 and the like, the air distribution hole 49 fixed to the cylinder cover 7a and communicating with the short-circuit check valve 13 and the straight airflow injection hole 23 are configured, and the short-circuit check is performed at the time of normal compression injection. A large number of straight-flowing airflows and the like are injected from the straight-flowing airflow injection holes 23 and the like through the valve 13 and the air distribution holes 49, and at the time of explosive combustion, the reverse flow is blocked by the short-circuit check valve 13 to reduce the main combustion chamber. 21
Isolate and keep the approximate constant volume isothermal combustion for a long time.

1 and 4 (D), (E), (F),
Explaining the compact main combustion chamber 21 with reference to (G), in order to greatly reduce NOx, cooling loss, and exhaust loss at the same time and bring them to almost nothing, a low temperature NOx reduction method including a normal NOx reduction method by water injection is used. It is essential to make a large conversion into superheated steam mass volume energy, but the compact main combustion chamber 21 keeps the approximate constant volume isothermal combustion for a long time while maintaining the best combustion conditions.
Complete a short period of complete combustion to prevent generation of Ox
4 shows the case where the combustion cylinder 61 is used to maximize the injection amount of No. 4, and (D) shows the basic combustion cylinder 61D. In order to prevent fuel oil particles and unburned gas from coming into direct contact with water vapor or the like and resulting in poor combustion, a cylindrical combustion tube 61D having a good thermal conductivity is provided in the central axial direction of the contracted main combustion chamber 21 and the lower end is tapered. Is provided as an injection air inlet 62 to isolate the compact main combustion chamber 21 up to about 55 ° at the crank angle before and after top dead center, and the rotary air flow injection hole 24 is provided via the short-circuit check valve 13.
The fuel gas is injected from the fuel / hot water injector 10 in the opposite direction, and the combustion gas that has lost penetrating power after complete combustion is burned with hot water from the fuel / hot water injector 10 side. 60D is injected to the outer peripheral side and circulated to the rotary airflow injection hole 24 side, etc., and NOx and unburned matter are brought close to nothing, and the injection amount of hot water 34 is maximized by high temperature and high pressure injection.

(E) is shown as a combustion cylinder 61E provided with an annular or spiral projection 63 on the inner cylinder surface of the combustion cylinder 61D and provided in the compact main combustion chamber 21. That is, for the purpose of generating turbulence such as waves and vibrations in the fuel jet and the air jet to promote combustion, and increasing the heat transfer area to lower the maximum combustion temperature and maximize the injection amount of hot water. Cage,
Therefore, it is equipped with a combustion tube 61E that has spiral or annular projections sized according to the application. (F) is provided with an annular or spiral projection 63 also on the outer peripheral surface of the combustion tube 61E and is provided in the central axial direction of the reduced main combustion chamber 21 to provide the combustion tube 6
As 1F, the heat transfer area is increased to convert the hot water 34 into high temperature superheated steam and also to maximize the injection amount.
(G) is provided with a plurality of combustion cylinder holes 64 through the cylindrical surface of the combustion cylinder 61D and is provided in the central axial direction of the contracted main combustion chamber 21 to promote combustion mainly as the combustion cylinder 61G to complete complete combustion in a short period of time. It is used for the purpose of ending.

1 and 5 (H), (I), (J),
Explaining the compact main combustion chamber 21 with reference to (K), (H) shows a combustion cylinder hole 64 in the cylindrical surface of the combustion cylinder 61E.
A large number of through-holes are provided in the central axis direction of the compact main combustion chamber 21 to promote combustion as a combustion cylinder 61H, which is used for the purpose of maximizing the injection amount of hot water by completing complete combustion in a short period of time. To do. (I) is a combustion cylinder hole 64 in the cylindrical surface of the combustion cylinder 61F.
A large number of through-holes are provided in the central axial direction of the compact main combustion chamber 21 to mainly promote combustion as a combustion tube 61I to end complete combustion in a short time and maximize the injection amount of the hot water 34. To use. In (J), a large number of outward gaps 65 are provided in place of the combustion cylinder holes 64 of the combustion cylinder 61I. The combustion cylinder 61J is provided in the axial direction,
Mainly promotes combustion and completes complete combustion for a short period of time
It is used for the purpose of maximizing the injection amount of 4.
In (K), a large number of inward gaps 66 are provided in place of the combustion cylinder holes 64 of the combustion cylinder 611. As a combustion tube 61K equipped in the central axis direction, it is mainly used for the purpose of promoting combustion, ending complete combustion for a short period of time, and maximizing the injection amount of hot water 34.

Referring to the 12 examples shown in FIGS. 1 and 6, the contracted piston 22 will be described. The contracted main combustion chamber 21 is separated up to about 55 ° at the crank angle before and after top dead center and the clearance between the contracted pistons 22 is reduced. In addition to reducing the combustion gas injection amount from the multi-stage, to establish the rotational force near the top dead center according to the application,
In order to convert the high temperature combustion gas temperature to the maximum superheated steam mass by maintaining the approximate constant volume isothermal combustion for a long time under the best combustion conditions, it is necessarily optimal to use it as velocity type dynamic pressure energy. The torque near the dead point is discarded and the maximum torque is concentrated. That is, in the normal combustion method, most of the rotational energy is consumed near the top dead center and fatigue is inconvenient when the maximum torque is generated. Dedicated to the conversion of superheated steam mass that greatly reduces exhaustion loss and nothing,
The rotational energy is saved by the approximate constant volume isothermal combustion, and the mass increase is effectively used as velocity type dynamic pressure energy + normal static pressure energy because the maximum rotational force is greatly increased. Therefore, the head of the contracted piston 22 is made streamlined, and the unevenness 41 causes the combustion gas to be depressurized and injected in multiple stages according to the application to establish the rotational force near the top dead center. Therefore, the reduced piston (22A) has the head as the inverted pan bottom shape 42, and the height is appropriately set according to the use, and the uneven main combustion chamber 21 is isolated by providing a large number of irregularities 41 on the outer diameter to leak high pressure gas amount. The multi-stage decompression injection is performed to establish the rotational force near the top dead center according to the application.

The condensed viston (22B) has a truncated cone 43 as the head, and the height is appropriately set according to the use. Also, a large number of irregularities 41 are provided on the outer diameter to isolate the compressed main combustion chamber 21 and leak high pressure gas. A multi-stage decompression injection is performed to establish the rotational force near top dead center according to the application. Reduced piston (22
In C), the head has a conical shape 44, and the height is appropriately established according to the application, and a large number of irregularities 41 are provided on the outer diameter to isolate the compact main combustion chamber 21 and inject the leaked high pressure gas in multiple stages under reduced pressure. The rotational force near top dead center is established according to the application. The head of the reduced piston (22D) has an inverted pan bottom shape 42, and the height is appropriately set according to the application, and a large number of irregularities 41 are provided on the outer diameter to isolate the reduced main combustion chamber 21 and reduce the amount of leaked high pressure gas. Multi-stage decompression injection is performed to establish the rotational force near the top dead center according to the application, and a large number of rectilinear air flow injection grooves 16 are provided in the uppermost convex portion to eject a large number of rectilinear air flow when eliminating the small reciprocating piston. The maximum rotational force is greatly increased by jetting and velocity velocity dynamic energy. The reduced piston (22E) has a frustoconical head 43 whose height is appropriately set according to the purpose of use, and a large number of irregularities 41 are provided on the outer diameter to isolate the reduced main combustion chamber 21 to increase the amount of leaked high pressure gas. Injecting a reduced pressure to a rotary force near the top dead center according to the application, and forming a large number of rectilinear airflow injection grooves 16 in the uppermost convex part to eject a large number of rectilinear airflow when the small reciprocating piston is eliminated. Then, the maximum rotational force is greatly increased by velocity type dynamic pressure energy.

The reduced piston (22F) has a conical head 4
4, the height is appropriately set according to the application, and a large number of projections and depressions 41 are provided on the outer diameter to isolate the compressed main combustion chamber 21 and to inject the leaked high pressure gas in multiple stages to reduce the rotational force near the top dead center. According to the application, a large number of rectilinear airflow injection grooves 16 are provided in the uppermost convex portion to eject a large amount of rectilinear airflow when the small reciprocating piston is eliminated, and the maximum rotational force is generated by velocity type dynamic pressure energy. It will greatly increase. The reduced piston (22G) has an inverted pot bottom shape 42 with its head appropriately set in height depending on the application, and a large number of irregularities 41 are provided on the outer diameter of the reduced main combustion chamber 2
Isolate 1 to reduce the amount of leaked high pressure gas in multiple stages to establish the rotational force near the top dead center according to the application, and reduce the number of rotary air flow injection grooves 17 in the uppermost convex portion to reduce the shape. When the small reciprocating piston is eliminated, a large number of rotating air streams are jetted and the maximum rotational force is greatly increased by velocity type energy. Reduced piston (2
2H) has a frusto-conical head 43, and the height is appropriately set according to the use, and a large number of irregularities 41 are provided on the outer diameter to isolate the compressed main combustion chamber 21 and inject the leaked high pressure gas in multiple stages under reduced pressure. The rotational force near the top dead center is set according to the application, and a large number of rotary airflow injection grooves 17 are provided in the uppermost convex portion to reduce the size of the small reciprocating piston. The maximum rotational force is greatly increased by the dynamic pressure energy. The reduced piston (22I) has a conical head 44 and has a height appropriately set according to the application, and a large number of irregularities 41 are provided on the outer diameter to isolate the reduced main combustion chamber 21 and to increase the leakage high pressure gas amount in multiple stages. A low pressure injection is performed to establish the rotational force near the top dead center according to the application, and a large number of rotary airflow injection grooves 17 are provided in the uppermost convex portion to inject a large number of rotary airflow when the small reciprocating piston is eliminated. Then, the maximum rotational force is greatly increased by velocity type dynamic pressure energy.

The reduced piston (22J) has a head as an inverted pot bottom shape 42, and the height is appropriately set according to the application, and a large number of irregularities 41 are provided on the outer diameter to isolate the reduced main combustion chamber 21 and to leak high pressure. A multi-stage depressurized injection of gas is used to establish a rotational force near the top dead center according to the application, and a large number of stirring air flow injection grooves 18 are provided in the uppermost convex portion to stir air flow when the small reciprocating piston is eliminated. The maximum rotational force is greatly increased by injecting a large number of jets with velocity type dynamic pressure energy. The head of the reduced piston (22K) has a frustoconical shape 43, and the height is appropriately set according to the application, and a large number of irregularities 41 are provided on the outer diameter to isolate the reduced main combustion chamber 21 and the leakage high pressure gas amount is multi-staged. Injecting decompressed air into the machine to establish the rotational force near the top dead center according to the application, and providing a large number of agitation airflow injection grooves 18 in the uppermost convex portion to inject a large number of agitation airflow when eliminating the small reciprocating piston Then, the maximum rotational force is greatly increased by velocity type dynamic pressure energy. The reduced piston (22L) has a conical head 44 and has a height appropriately set depending on the application, and a large number of irregularities 41 are provided on the outer diameter to isolate the reduced main combustion chamber 21 and to increase the leakage high pressure gas amount in multiple stages. A reduced pressure injection is performed to establish the rotational force near the top dead center according to the application, and a large number of agitation airflow injection grooves 18 are provided in the uppermost convex portion to inject a large number of rotational airflow when the small reciprocating piston is eliminated. Then, the maximum rotational force is greatly increased by velocity type dynamic pressure energy.

The short-circuit check valve 13 will be described with reference to the four examples of FIGS. 1 and 7. Since the space of the flow path including the short-circuit check valve 13 is likely to be a dead volume, the size is simplified and simplified. A well-balanced multiple check valve 1 in the cylinder cover 7a.
Equipped with 3. The short-circuit check valve (13A) is a disc-shaped valve seat 11 having a check valve body 8A in the form of a spherical-cylindrical cylinder along the inner surface of a large number of plate-shaped guide members 5 and having a short-circuit hole 12 at the center. To
A disk-shaped valve spring receiver 2 having a valve spring 3 and an assembly screw
0 to open and close so as to open and close to form the short-circuit check valve 13A. The short-circuit check valve 13A is fixed in the plurality of mounting holes 4 by the packing 19 and the tightening screws 56 and the short-circuit hole 12 and the air distribution hole 49.
Contact. The short-circuit check valve (13B) is a disk-shaped valve seat 11 having a conical-head cylindrical body-shaped check valve body 8B provided along the inner surface of a large number of plate-shaped guide members 5 and having a short-circuit hole 12 at the center. To
A disk-shaped valve spring receiver 2 having a valve spring 3 and an assembly screw
0 to open and close to urge the short-circuit check valve 13B to be fixed, and the packing 19 and the tightening screw 56 fix the plurality of mounting holes 4 to the short-circuit hole 12 and the air distribution hole 49. I will contact you.

The short-circuit check valve (13C) is a disk-shaped check valve body 8C having an annular head cylindrical body provided along the inner surfaces of a large number of plate-shaped guide members 5 and having a short-circuit hole 12 at the center. On the valve seat 11, the valve spring 3 and the disk-shaped valve spring receiver 20 having the assembly screw are urged to open and close to form the short-circuit check valve 13C, and the packing is provided in the plurality of mounting holes 4. 19 and tightening screw 5
It is fixed by 6 and contacts the short cut hole 12 and the air distribution hole 49. The short-circuit check valve (13D) has a disc-shaped valve seat 11 having a flat-head cylindrical barrel-shaped check valve body 8C provided along the inner surface of a large number of plate-shaped guide members 5 and having a short-circuit hole 12 at the center. , Valve spring 3
And a disc-shaped valve spring receiver 20 having an assembly screw to open and close and press the open valve to form a short-circuit check valve 13D.
Fix it with packing 19 and tightening screws 56 in multiple mounting holes 4 and connect it to the short cut holes 12 and air distribution holes 49. Also, due to the corrosion resistance and wear resistance of the contact portion 57 between the check valve body 8 and the valve seat 11, a heat resistant and wear resistant material is selected and used for the contact portion 57 between the check valve body 8 and the valve seat 11 according to the application. .

In a compact combustion chamber internal combustion engine, as a method for completely reducing unburned components, the approximate constant volume isothermal combustion can be maintained for a long time under the best combustion conditions that do not generate NOx.
Since the diameter of the compression piston 22 is reduced to, for example, 1/5 of the diameter of the output piston 2, the cross-sectional area where the maximum combustion pressure is applied is reduced to 1/25, etc. near the top dead center, and the maximum combustion is achieved. Lubricating oil can be reduced by reducing bearing load increase and piston side pressure increase due to pressure increase to 1/25, etc., but if adiabatic non-cooling is used, the friction heat is vaporized only by the lubricating oil. Since it is exhausted as unburned matter, a means to mix water including additives into the lubricating oil is provided and harmless exhaust is obtained by using frictional heat as the mass volume of water vapor. In particular, a fully rotating reciprocating engine patented in Japan and overseas under the name of a fuel injection internal combustion engine whose engine body rotates is also disclosed in Japanese Patent Application No. 6-271
Since 928, the content is essential and the core is a compact combustion chamber internal combustion engine. In order to achieve adiabatic non-cooling, it is essential to provide a means to mix water with additives in the lubricating oil according to the application.

[0029]

[Effects of the Invention] It has become an urgent task to dramatically improve the thermal efficiency of crank engines for humankind, including the prevention of global warming and pollution. Therefore, it is the best way to make cooling loss and exhaust loss almost zero, but it is not possible with ordinary crank engines, so fundamental improvement is necessary. In other words, it is essential to convert the superheated steam mass energy into a large amount in order to eliminate the cooling loss and to greatly reduce the exhaust loss and NOx. It is also indispensable to use it as kinetic pressure energy. Therefore, the approximate constant volume isothermal combustion long-time sustaining by the contracted main combustion chamber 21 has a great effect because it is largely converted into superheated steam mass energy, and cooling loss, exhaust loss and N
It has a great effect to greatly reduce Ox and bring it to almost nothing, to bring unburned matter including soot to almost nothing, and to greatly increase the maximum rotational force as velocity type dynamic pressure energy.

Since the contracted main combustion chamber 21 can be transformed into a variety of things except for the contracted form 9 of the population, it is equipped with a fuel / hot water injector as a cylindrical shape to inject liquid fuel and air in opposite directions and instantaneously the theoretical air-fuel ratio. In the vicinity of the compression ignition combustion to eliminate the generation of soot, the turbulence is insufficient from the middle to the latter part of the combustion, and it becomes high temperature combustion, so if hot water is injected to reproduce the turbulence, the best combustion conditions (combustion temperature Approximately constant volume isothermal combustion is maintained for a long period of time at a constant temperature of 2000 ° C or less and combustion pressure is maximally converted to superheated steam mass, and the steam engine and internal combustion engine are combined, and the compact main combustion chamber 21 is also used. The output combustion chamber 6 does not need cooling water, so there is no cooling loss.
The diametrical sectional area of the output piston 2 is, for example, 2
Since the shape is reduced to 1/0, etc., the maximum load of the crank bearing can be increased to about 1/20 even if the maximum combustion pressure is dramatically increased. Therefore, the compression ratio is increased and the thermal efficiency is dramatically increased. It also has a great effect on raising the temperature and expanding the diameter of the output combustion chamber to greatly reduce the weight per output.

In order to reduce exhaust loss, cooling loss and NOx to a great extent and to bring them to almost nothing, it is indispensable to recycle exhaust heat quantity into hot water including reduction of NOx by normal water injection. Since the volume of hot combustion gas is converted to the mass of heated steam at low temperature, NOx can be reduced, the maximum rotational force is greatly increased as velocity type energy, and the exhaust turbine 27 is optimally operated to obtain low noise and large output. It is effective, and has a great effect of prohibiting cooling of the entire engine to bring cooling loss to near zero, and in addition to greatly reducing exhaust loss by recycling exhaust heat quantity to hot water and circulating it,
It has a great effect that hot water can be easily used for heating and cooling and hot water supply.

The compact main combustion chamber 21 is provided with a fuel / hot water injector and a gas fuel injector or a spark plug / hot water injector, a spark plug and a gas fuel injector as appropriate to inject the injected gas fuel. High-speed agitation and mixing with an arbitrary injection air flow, compression ignition or spark ignition combustion, and turbulence is insufficient from the middle to the latter part of combustion, and since it becomes approximate constant volume high temperature combustion, when turbulence is reproduced by injecting hot water Since it is possible to largely convert the volume of high-temperature combustion gas into the mass of low-temperature superheated steam, it has a great effect of suppressing the maximum combustion pressure, and also has a great effect of greatly increasing the compression ratio and dramatically increasing the thermal efficiency. Reduced piston 22
Since the diameter of the engine can be dramatically reduced, the effect of reducing the thickness and weight of the entire engine is great, and the output combustion chamber has a low pressure, so that the diameter of the output piston 6 can be dramatically increased to achieve a multi-cylinder lightweight and large output. There is.

By making the diametrical cross-sectional area of the contracted piston 22 one-third of that of the output piston 2, it is possible to increase the bearing load, piston side pressure, etc. at the time of compression ignition explosion near top dead center one-third. Therefore, there is a great effect that the adverse effect due to the early ignition can be minimized, and the stirring and mixing by the strong injection air flow by the early fuel injection near the crank angle before top dead center of 55 ° at the start of the separation of the compact main combustion chamber becomes possible. Similarly, even gas fuel with a high ignition temperature is directly injected into the compact main combustion chamber by stirring and mixing to enable early spark ignition or light oil injection compression ignition combustion efficiently with a large compression ratio, so it is put into practical use because it is unburned It has a great effect of putting an impossible high-speed two-cycle engine into practical use, and also has a great effect of eliminating the unburned component by maintaining a constant constant volume isothermal combustion for a long time.

Explaining the common parts one by one from the above, for example, when a light oil fuel for automobiles or a light oil fuel for ships is used according to the purpose, the compact combustion chamber internal combustion engine of the present invention has a superconductivity which is usually impossible due to the compact structure. A high compression ratio early fuel injection combustion is possible to a small extent, and an approximate constant volume isothermal combustion is maintained for a long time and low temperature slow combustion by residual gas and superheated steam results in NO
In addition to greatly reducing x, the best combustion condition is maintained for a long time to complete complete combustion for a short period of time to bring the unburned component to almost nothing, and the high temperature combustion gas temperature is largely converted to superheated steam mass volume energy for which cooling is prohibited, The combustion chamber has an adiabatic structure that allows cooling loss to be reduced to almost zero and exhaust temperature to 1
The exhaust heat quantity is regenerated into hot water by approaching to 00 ° C and injected into the main combustion chamber to be circulated and used, which has a great effect to greatly reduce cooling loss and exhaust loss. It is also possible to use adiabatic and wear-resistant ceramics or ceramic coatings on the moving parts, which has the great effect of obtaining a compact combustion chamber internal combustion engine of a combined engine that operates with combustion-prohibited combustion gas and superheated steam. It is extremely difficult to obtain low-pollution high-speed 2-cycle large stroke volume multi-cylinder lightweight and high-power compact combustion chamber internal combustion engine.

From the above, when the present invention is applied to a heavy oil fuel for a large-scale marine diesel engine as a marine uniflow scavenging low-speed two-cycle crosshead large reduced-size combustion chamber internal combustion engine,
The combustion chamber is divided into a compact main combustion chamber and an output combustion chamber, and an exhaust valve is installed on the ceiling of the output combustion chamber according to the application. In order to increase the pressure and reduce the weight, the outer diameter of the compressed piston is reduced by selecting, for example, about 1/5 to 1/6 of the piston stroke, and the outer diameter of the output piston is a low-pressure, velocity-type displacement type. Since it is used as pressure energy, the larger the diameter is, the lighter the weight and the larger the output can be. Therefore, considering the complete combustion end time, it is better to expand the diameter to the same as the piston stroke or about half. When used as a cross-bed type diesel engine, the outer diameter clearance of the contracted piston is easy to design because the swinging ratio of the piston head is minimal due to the lateral pressure. Possible to increase the maximum combustion pressure 1 increased width of the bearing load of 30 minutes that
It is also possible to increase the maximum combustion pressure further to isolate it up to about 55 ° after top dead center and inject fuel and air in opposite directions in the cylindrical main combustion chamber with a large amount of residual gas. High-speed agitation theory The approximate constant volume isothermal combustion for a long time including hot water injection and normal water injection while maintaining the best combustion conditions in the range where NOx is not generated while preventing soot generation due to mixed combustion near the air-fuel ratio It is possible to extend the combustion under the best combustion conditions, which lasts for a short period of time and usually ends instantly, by a factor of 5 to 10 times. By converting the superheated steam mass energy into large volume energy and injecting it into the expanded output piston at high speed as velocity type volume dynamic pressure energy, the maximum rotational force is greatly increased, and a significantly cleaner exhaust gas is obtained, and it is a leap. To thermal efficiency Good lightweight high output, there is a significant effect of obtaining a large uniflow scavenging slow 2 stroke cross-head condensation type combustion chamber internal combustion engine.

Therefore, in the case of implementing the above as the trunk piston type, the approximate constant volume isothermal combustion is continued for a long time under the best combustion conditions such that NOx is not produced in the state where a large amount of residual gas is produced by the contracted main combustion chamber. The concept of maximizing the injection amount of water is the same as the above, but since the piston stroke S and the piston outer diameter D are the largest, it is possible to reduce the size of the largest class and the weight of the reciprocating motion part, and there is a margin even with bad fuel. Completion of complete combustion to obtain clean exhaust gas and N by normal water injection
It is easy to incorporate the Ox reduction method and to easily convert the mass volume of superheated steam by the fuel / hot water injector of the present invention, and maximize the selection range of the ratio of the S / D of the contraction piston and the output piston S / D. Therefore, there is a great effect to obtain a compact combustion chamber internal combustion engine of light weight, large output, low pollution, low fuel consumption, large size, medium speed, large stroke volume, multi-cylinder two-cycle trunk piston compression ignition according to the application. It has a great effect of suppressing the maximum combustion pressure because it is converted to superheated steam mass volume energy of cooling prohibition, and also has a great effect of increasing the compression ratio to increase the thermal efficiency, and the combustion chamber including the sliding part has an adiabatic structure. It is also effective, and when ceramics or ceramic coating is selected for adiabatic wear resistance, not only the heat load of the output combustion chamber is dramatically reduced, but also the piston side pressure is significantly reduced. Therefore, there is a savings and significant effect on the cleaning of exhaust lubricating oil including the additive lubricant oil it is possible to dilute with water, fuel and play the heat quantity of the exhaust gas in hot water
In order to make exhaust temperature 100 ° C or below by circulating and using hot water injector and compact main combustion chamber, and to eliminate cooling loss and greatly reduce exhaust loss. Has a great effect on.

From the above, when used as a two-cycle compact combustion chamber gasoline injection spark ignition engine, the compression ratio is made close to that of a diesel engine, and 60 ° before the top dead center on the verge of isolating the compact main combustion chamber of the heat insulating structure. The fuel is injected from a certain level and spark ignition explosion combustion is performed near the top dead center, but it does not work as an engine due to abnormal combustion in a normal combustion chamber. The compact main combustion chamber can change a lot except the contracted part of the inlet and can be spherical, but if it is made cylindrical, the air injection port and the fuel or hot water injection port are installed facing each other at an appropriate distance, and fuel injection is performed. By controlling the quantity and controlling the timing, the target air-fuel mixture field can be ideally agitated and mixed by the air blown from the rotary airflow injection holes, etc. in the entire operating range to form near the top dead center. In the case of spark ignition explosive combustion, the crank angle of early ignition can be advanced as the reduction ratio S / D is made larger so that the turbulence is strong and the approximate constant volume isothermal long-term combustion is enabled during the shortest period. Complete combustion end Unburned parts are made equal,
The energy consumption near the top dead center, which has a large adverse effect such as a large increase in friction load and is hard to turn into a rotating force, is kept to a minimum, and is stored at a constant constant volume high temperature combustion in the middle to late stages, resulting in insufficient turbulence and maximum rotation As the maximum period of great power increase approaches, turbulence is regenerated and combustion is promoted, while NOx, cooling loss and exhaust loss are greatly reduced and the maximum rotational force is greatly increased, so hot water containing superheated steam is injected. Then, the volume of the high temperature combustion gas is largely converted into superheated steam mass volume energy to uniformly cool the condensed main combustion chamber and the combustion gas to be the residual gas, and further cool it by absorbing the latent heat of vaporization of the injected gasoline spray. By eliminating abnormal combustion by two-cycle compression type combustion chamber gasoline injection spark ignition large stroke volume multi-cylinder engine, the compression ratio can be made close to that of diesel engine. There is also a large effect of the loss and the exhaust loss a big reduction to increase the thermal efficiency.

From the above, when implementing as a two-cycle compressed main combustion chamber gasoline injection compression ignition engine, a glow plug or the like is required for starting, but the compressed main combustion chamber retains residual gas, so Self-ignition of gasoline fuel that is difficult to ignite becomes possible, and the increase in friction loss due to the increase in maximum combustion pressure is reduced by, for example, 1/10 to 1/30.
Since it can be selected and reduced, the compression ratio can be dramatically increased, which has the great effect of increasing the thermal efficiency.Because there is a large amount of residual gas and the fuel and air are injected oppositely, the combustion speed is slowed and the high-speed agitation theory Mixing near the fuel ratio becomes easy, and NO
The effect of being able to reduce x is also large, for example, when a rotating airflow is injected from the rotating airflow injection hole, centrifugal force and centripetal force are generated,
Complete combustion end High-speed gas and unburned low-temperature gas can be separated and stirred at high speed, and turbulence is insufficient from the middle to late stages of combustion. NOx is reduced, velocity type volumetric dynamic pressure energy is greatly increased, and maximum rotating force is greatly increased. Therefore, energy consumption is minimized near the top dead center where the maximum bearing load and weight are greatly increased. In order to use it, the hot combustion water containing superheated steam is injected to convert the high temperature combustion gas temperature into the superheated steam mass energy, and the compact main combustion chamber and the combustion gas are uniformly controlled from the inside. Achieving the above, and greatly reducing pollution, cooling loss and exhaust loss are also greatly reduced, and there is a great effect to obtain a high thermal efficiency lightweight large output gasoline injection high speed 2-cycle large stroke volume multi-cylinder compression ignition engine.

Even when a two-cycle reduced combustion chamber methanol injection spark ignition (including glow hot surface ignition) engine or a two-cycle reduced combustion chamber methanol / gasoline mixed injection spark ignition engine is used, the same as the above gasoline engine, etc. Similarly, as a cylindrical heat insulating structure, fuel and air are injected oppositely.Methanol fuel has a large latent heat of vaporization and a large amount of injection, but it is difficult to vaporize, but since the penetrating power is strong, the counter injection is an optimal vaporization measure. Since the compact main combustion chamber has a large amount of residual gas, it is easy to ignite, and the temperature controls hot water injection, so that the temperature can be controlled to an appropriate temperature. Since the increase in friction loss due to the rise can be greatly reduced by the compact main combustion chamber, there is an effect of dramatically increasing the thermal efficiency due to a large increase in the compression ratio, and in the range where NOx is not produced. Good to remain approximate constant volume isothermal combustion of the combustion conditions and long-lasting up to 55 ° back and forth by a crank angle after top dead center of, in order to high-speed jet rapidly expanding combustion output combustion chamber, 2
As a cycle engine, the possibility of exhausting unburned methanol, formaldehyde, HC, and other unburned components is extremely low, including during cold start, and it is a lightweight, high-output two-cycle lightweight and high-power maximum rotation of a compact combustion chamber. Since it is the best combustion method with low pollution and high thermal efficiency with increased power, methanol is injected and mixed into the main combustion chamber at a crank angle of about 60 ° before top dead center or at a suitable time thereafter, and spark ignition combustion is performed. Also in this case, by controlling the fuel injection amount and the fuel injection timing and utilizing the powerful opposed injection airflow from the rotary airflow injection holes, etc., the target air-fuel mixture field is formed in the vicinity of the spark plug in the entire operating range. However, the cylindrical compact main combustion chamber can be made into the best combustion chamber shape to form the target air-fuel mixture field in the entire operating range by injecting fuel and air in the opposite direction. Ideal layer because the number of attachments can be selected appropriately It is also a lean charge combustion method, and has a great effect to obtain a light-weight, high-power, low-emission, low-fuel consumption, high-compression ratio 2-cycle compact combustion chamber methanol injection spark ignition engine or a 2-cycle compact combustion chamber methanol gasoline mixed injection spark ignition engine. .

In the case of implementing as a two-cycle compression combustion chamber methanol injection compression ignition (glow heat surface control) engine from the above, similarly, in the compression main combustion chamber of the cylindrical heat insulation structure, methanol fuel and air are injected oppositely at high speed. Since it is the best countermeasure against vaporization, it is difficult to vaporize when the air temperature is particularly low at the time of starting, so it is possible to select overheating of the intake air or glow hot surface ignition at the time of starting, but -Type combustion chamber In an internal combustion engine, adverse effects such as a large increase in engine weight due to an increase in maximum bearing load due to an increase in maximum combustion pressure, and a large increase in friction loss due to an increase in piston pressure measurement, etc. should be reduced to one-third or less in a large size. Since it is also possible to reduce the loss when the compression ratio is increased, it is possible to increase the compression ratio to 30: 1 or more. Therefore, the compression ratio is increased to increase the thermal efficiency and to facilitate compression ignition. In addition, by using the residual gas of the two-cycle engine and the residual gas of the compact main combustion chamber to facilitate compression ignition, the use of the glow heating surface is minimized, the life of the glow plug is extended, and the thermal efficiency is increased. It is effective, and by reproducing the exhaust heat quantity into hot water and injecting it into the compact main combustion chamber for cyclic use, the approximate constant volume isothermal combustion is maintained for a long time under the best combustion conditions in the range where NOx is not produced. Then, the unburned fuel content is made almost zero, and the high temperature combustion gas temperature is largely converted into the low temperature superheated steam mass, and it is injected at high speed into the output combustion chamber as velocity volumetric dynamic pressure energy together with the high temperature combustion gas. , The maximum rotational force is greatly increased and the unburned components are further reduced to near zero by high-speed agitation combustion. By there is a large effect to obtain a low-pollution fuel-efficient lightweight two-stroke Chijimigata combustion chamber methanol injection compression-ignition engine of large output.

From the above, even when the two-cycle reduced combustion chamber natural gas injection spark ignition engine or the two-cycle reduced combustion chamber natural gas light oil injection compression ignition engine is used, it is clear that unburned components remain in the same manner. In order to avoid the supply of fuel such as natural gas in the output combustion chamber close to the combustion chamber, the natural gas in the reduced main combustion chamber should be provided just before the isolation of the reduced main combustion chamber (after 60 ° near top dead center). Is injected (including injection material injection timing control), but natural gas has a small penetrating power, so avoiding opposed injection and place it on a high-speed turbulent flow such as a rotating air flow injection hole or a stirring air flow to mix and stir. Therefore, the required number of natural gas injectors 67 are provided at appropriate places on the cylindrical surface of the compact main combustion chamber to inject and stir and mix the natural gas, and spark ignition or light oil injection compression ignition is normally performed near the top dead center. However, friction does not occur in the isolated main combustion chamber isolated combustion method. If the adverse effect of the maximum combustion pressure increase with a large increase of the large increase or weight loss in Daichijimi shape ratio 1/30
Etc., it is possible to greatly reduce the thermal efficiency by greatly increasing the compression ratio. A two-cycle compressed combustion chamber that uses a rotating air flow or a stirring air flow, etc. Natural gas injection stratified charge spark ignition lean combustion The method has the great effect that the target mixture gas field in all operating regions can be formed near the spark plug by controlling the natural gas injection amount control and the natural gas injection timing control because the best combustion chamber shape is possible. If light oil injection compression ignition is used instead, light oil oil multi-point ignition rapid wave combustion is also possible, and the knock that is usually harmful in the compact combustion chamber is also the best combustion method. there is. Combustion also lacks turbulence from the middle period to the latter period, and approximate constant volume combustion also becomes high temperature combustion, so high temperature hot water is injected to regenerate turbulence and burn unburned content to bring it to almost nothing,
Converts high temperature combustion gas temperature into superheated steam mass and suppresses NOx generation, and injects into the output combustion chamber at high speed as velocity type volumetric dynamic pressure combustion gas energy to greatly increase maximum rotational force and high speed. By rapidly expanding combustion with agitation, the unburned components are made even closer to nothing, resulting in a dramatically cleaner exhaust gas.

From the above, also when the hydrogen injection spark ignition engine is implemented as a two-cycle compressed combustion chamber, the compressed combustion chamber approximate constant volume isothermal long-lasting combustion method is also used. Therefore, since the configuration will be changed slightly, hydrogen will have the same configuration as natural gas, and the gas fuel injector that injects natural gas will be the gas fuel injector that injects hydrogen. The problem when using hydrogen as fuel is backfire and pre-ignition, but there is no possibility of backfire because hydrogen fuel is directly injected and burned into the compact main combustion chamber.
Also for pre-ignition, pre-ignition occurs because the temperature of the compressed main combustion chamber and the combustion gas temperature that becomes a large amount of residual gas are controlled by cooling in the process of converting the high-temperature combustion gas temperature into superheated steam mass by hot water injection. The possibility is very low and the adverse effect can be greatly reduced as described above even in the case of pre-ignition, and the reduction of NOx is also the same as above, but if low temperature slow combustion that does not generate NOx in the normal combustion chamber is performed, the best combustion conditions As it is, the combustion ends instantly, the turbulence is insufficient, and a large amount of unburned matter is generated, so combustion at a temperature that does not generate NOx is impossible,
The reduced combustion chamber combustion method has the effect of keeping the approximate constant volume isothermal combustion, including the injection of hot water, for a long period of time while keeping the best combustion conditions that do not generate NOx, and making the unburned gas almost disappear. The effect of making high-speed injection agitation rapid expansion combustion into the output combustion chamber and making the unburned component even closer to nothing is great, and energy consumption is saved with minimal use consumption near the top dead center where it is difficult to use rotational power and the entire engine is saved. Achieving high compression ratio and high thermal efficiency by significantly reducing the weight and reducing friction loss, and making a leap by greatly increasing the maximum rotational force as velocity type volumetric dynamic pressure energy at the best crank angle that easily causes rotational force It has a great effect to obtain a low-pollution, low-fuel-consumption, lightweight, high-output, two-cycle compact combustion chamber hydrogen injection spark ignition engine.

In the order of the claims, in a diesel engine or a gas engine that supplies electric power and heat at the same time, when the exhaust heat amount is used for heating and cooling, hot water supply, etc., there are restrictions on the water quality and water temperature depending on the application. Optimal economical water quality and temperature are selected. Similarly, when the exhaust heat is regenerated into hot water and injected into the compact main combustion chamber, the high-temperature combustion gas temperature is largely converted to the superheated steam mass and circulated for use to bring cooling loss and exhaust loss to near zero. Since the hot water pipe 33 and the supplementary hot water pipe 58 are independently provided, each device can be added to have a great effect of obtaining the optimum economical water quality and water temperature.

In a compressed combustion chamber compression ignition hot water injection internal combustion engine when liquid fuel is used, the liquid fuel and hot water are injected in opposition to the air flow injected at high speed through the short-circuit check valve. The fuel / hot water injector 10 is provided at the opposite position such as the rotary air flow injection hole, but the part of the liquid fuel for compression ignition combustion such as light oil or heavy oil can be configured the same as a normal diesel engine fuel injection nozzle. In order to provide the hot water injection port 38 in the form of a multi-thread groove hole, a multi-thread screw groove hole, a double-thread screw groove hole, or a single-thread screw hole. It has the effect of optimally injecting hot water into the ever-changing compact main combustion chamber.Mainly because the centrifugal force is applied to the hot water, the radiant heat is absorbed by the wet steam with a heavy specific gravity, and the turbulence is regenerated with the superheated steam on the inner circumference. Therefore, even if the injection amount of hot water is greatly increased, there is very little possibility of generating unburned components, and the exhaust temperature is significantly lowered to circulate a large amount of exhaust heat for cooling. It has a great effect to greatly reduce loss and exhaust loss, and also has a great effect to obtain clean exhaust gas.

In the compressed combustion chamber compression ignition hot water injection gas engine in the case of using gas fuel, the gas fuel is supplied in the vicinity of 60 ° before top dead center by the air flow injected at high speed through the short-circuit check valve 13. A fuel / hot water injector for injecting, stirring, mixing, and injecting light oil fuel and hot water to the opposite side is provided at opposite positions such as the rotary airflow injection holes 24, and the light oil injection compression ignition combustion hot water injection approximate constant volume isothermal. Combustion lasts for a long time to bring unburned fuel to almost nothing, but because the compact combustion chamber is ever changing, it is possible to install the required number of gas fuel injectors 67 at the optimum position, so the optimal 2-cycle lightweight large output large stroke volume is possible. It has a great effect to obtain a multi-cylinder compact combustion chamber compression ignition hot water injection gas engine.

In a compact combustion chamber spark ignition hot water injection gas engine when using gas fuel, the gas fuel is supplied near or near 60 ° before top dead center by an air flow that is injected at high speed through a short-circuit check valve. After that, the mixture is injected, stirred, and mixed, and the fuel injection amount and fuel injection timing are controlled to perform spark ignition stratified charge combustion to avoid combustion in the portion where unburned components are likely to remain, and from the middle to late stages of combustion under heavy load. Since the turbulence is also insufficient and the combustion becomes an approximately constant volume high temperature combustion, the spark plug / hot water injector 68 is provided on the opposite side to control the spark ignition combustion hot water injection to reproduce the turbulence and accelerate the combustion to unburn. In addition to reducing the amount of exhaust gas to almost nothing, NOx is kept close to zero for a long time with an approximately constant volume isothermal combustion, so that clean exhaust gas is obtained and ideal two-cycle adiabatic uncooled large stroke volume multi-cylinder stratified charge spark ignition It has a great effect to obtain a lean burn gas engine. .

In a compact combustion chamber spark ignition hot water injection gasoline engine when gasoline is used, the gasoline is discharged from the fuel / hot water injector 10 in opposition to the air flow injected at high speed through the short-circuit check valve. The fuel mixture quantity is controlled by controlling the fuel injection amount and fuel injection timing at or near 60 ° before or after the dead center to control the fuel injection amount and the fuel injection timing for lean combustion of the stratified charge air supply. There is a great effect that it can be formed in the vicinity, and since turbulence is insufficient from the middle to late combustion under heavy load, and it becomes an approximate constant volume high temperature combustion, so the turbulence is reproduced by controlling hot water injection from the fuel / hot water injector. As a result, the combustion is accelerated to bring the unburned components to almost nothing, and the approximate constant volume isothermal combustion that does not generate NOx is maintained for a long time to bring NOx to almost nothing, so that clean exhaust gas is obtained and exhausted by hot water injection. To recycle heat , There is a large effect of atmospheric reducing exhaust loss and the cooling loss at the same time, it is possible to a large increase the maximum rotational force as the speed-type displacement type fluid dynamic energy, lightweight high output 2
Cycle adiabatic uncooled large stroke volume multi-cylinder stratified charge spark ignition lean burn gasoline engine has a great effect.

The contracted main combustion chamber 21 has the great effect that it can be transformed into various shapes according to the characteristics of all liquid gas fuels. Therefore, there is an effect that 12 cases can be easily configured as a cylindrical contracted main combustion chamber. Also, since a combustion test can be easily performed by replacing the small diameter cylinder cover 7b, it has a great effect of designing an optimal compact main combustion chamber.

When the high temperature combustion gas temperature is largely converted into the superheated steam mass in the compact main combustion chamber to be used as velocity type volumetric dynamic pressure energy, the compact main combustion chamber is first isolated to obtain an approximate constant volume isothermal. Combustion lasts for a long time, but the reduced piston 22
Since a large number of irregularities 41 are provided on the outer diameter portion of the above, there is a great effect that it can be depressurized in multiple stages and can be isolated for a long time. By providing a high-speed injection of high-temperature combustion gas to the output combustion chamber at the same time, it has the effect of optimally stirring and mixing to make the unburned component even closer to nothing. It is also a great effect to obtain the velocity-type volumetric dynamic pressure energy including superheated steam mass by making the top part streamlined including the inverted pan bottom shape 42 or the truncated cone shape 43 or the cone shape 44. There is also a great effect that can be used to optimally increase the maximum torque.

An optional short-circuit check valve 1 is attached to the cylinder cover 7a.
With the provision of 3, it becomes possible to isolate the compact main combustion chamber and maintain the approximate constant volume isothermal combustion for a long time, and it has a great effect to largely convert the high temperature combustion gas temperature into the superheated steam mass. , High performance short-cut check valve 13 with easy installation
Providing A, 13B, 13C, and 13D has a great effect of obtaining a short-circuit check valve that has a small flow resistance and can be opened and closed at high speed.

When a means for diluting a lubricating oil including additives with water according to the use is provided and used as a lubricating cooling liquid, friction heat is effectively cooled by utilizing the large latent heat of vaporization of water and a low boiling point. Yes, it has the effect of blocking the evaporation of lubricating oil to obtain clean exhaust gas, and has the effect of increasing the velocity-type volumetric dynamic pressure energy by increasing the mass volume of water vapor.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional view showing a schematic configuration of a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional view showing four examples of the fuel / hot water injector of the present invention.

FIG. 3 is a partial cross-sectional view showing four examples of the reduced main combustion chamber of the present invention.

FIG. 4 is a partial cross-sectional view showing four examples of the reduced main combustion chamber of the present invention.

FIG. 5 is a partial cross-sectional view showing four examples of the reduced main combustion chamber of the present invention.

FIG. 6 is an explanatory view showing 12 examples of the contracted piston of the present invention.

FIG. 7 is a cross-sectional view showing four examples of the short circuit check valve of the present invention.

[Explanation of symbols]

1: Cylinder 2: Output piston 3: Valve spring
4: Mounting hole 5: Guide member 6: Output combustion chamber 7: Cylinder cover 8: Check valve body 9: Reduced form 10: Fuel / hot water injector 11: Valve seat 12: Short cut hole 13: Short cut check Valve 14: Nozzle needle 15:
Fuel passage 16: Straight airflow injection groove 17: Rotating airflow injection groove 18: Agitation airflow injection groove 19: Packing
20: Valve spring receiver 21: Reduced main combustion chamber 22: Reduced piston 23: Straight airflow injection hole 24: Rotating airflow injection hole 25: Stirring airflow injection hole 26: Vertical exhaust pipe 27: Exhaust turbine 28: Collective exhaust pipe
29: Approximate coiled pipe 30: Hot water tank 31: Hot water pump 32: Hot water injection pump 33: Hot water pipe 34: Hot water 35: Power generation and electric motor 36: Liquid fuel 37: Air 38: Hot water injection port 39: Mantle 4
0: Air compressor 41: Concavo-convex 42: Reverse pan bottom type 4
3: truncated cone shape 44: conical shape 45: multiple thread groove 46: multiple thread groove 47: two thread groove 48: heat insulating material 49: air distribution hole 50: fuel injection port 51:
Fuel injection pump 52: Fuel injection nozzle 53: Hot water passage 54: Hot water injection valve 55: 1 thread groove 56: Tightening screw 57 Contact part 58: Makeup hot water pipe 59: Makeup hot water tank 60: Makeup water pump 61 : Combustion cylinder 62: Injection air inlet 63: Spiral protrusion 64: Combustion cylinder hole
65: Outward gap 66: Inward gap 67: Gas fuel injector 68: Spark plug / hot water injector 69: Spark plug 70:
Gas fuel

─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. ⁶ Identification number Office reference number FI technical display location F02M 25/022 F02M 25/02 H

Claims (38)

[Claims] 1. An output piston (2) projecting from a contracted piston (22) is on the verge of approaching top dead center (55 crank angle).
Before and after (°), the reduced shape of the main combustion chamber (21) inlet (9)
And the compact small reciprocating piston are suddenly constructed, and until the top dead center, for example, almost all of the air with a cross section of 19/20 in the output combustion chamber (6) is cut by 1/20 due to the difference in compression ratio. High-speed injection from the short-circuit check valve (13) side into the reduced-shape main combustion chamber (21) with the reduced-area (9) as the inlet to prevent backflow during explosive combustion and to approximate constant volume combustion length In a compact combustion chamber internal combustion engine for the purpose of sustaining time, high temperature combustion gas temperature is converted into low temperature superheated steam mass volume by hot water injection to reduce NOx and the combustion chamber is adiabatic for cooling unnecessary Further, in order to regenerate the exhaust heat quantity into hot water (34) and circulate it, a fuel / hot water injector (10) is provided opposite to the contracting piston (22) and its hot water pipe (33) is provided. The hot water (34) is provided mainly in the approximate coil shape (29) in the collecting exhaust pipe (28) of any shape. And is provided with a hot water tank (30), a hot water pump (31), a hot water injection pump (32), a hot water injection valve (54), etc. to regenerate exhaust heat into hot water for cyclic use And a compact combustion chamber internal combustion engine. 2. Replenishment heat water for regenerating the exhaust heat amount into hot water (34) for cyclic use is supplied to a collective exhaust pipe (28) or a vertical exhaust pipe (26) of any shape. The water pipe (58) is provided in the form of an approximate coil as the approximate coil pipe (29), and the hot water tank (30) side and the makeup water pump (60) are provided.
The compact combustion chamber according to claim 1, wherein the makeup hot water is connected to the makeup hot water tank (59) side to facilitate circulation of the makeup water in the approximate coil pipe (29) to obtain the makeup hot water. Internal combustion engine. 3. The fuel injection nozzle (52) of the fuel / hot water injector (10) is a normal automatic opening / closing hole type or pin type nozzle, and the hot water injection port (38) is provided in the axial direction on the outer diameter side. Consists of a multi-slot (45) and a cylindrical jacket (39),
For a compact combustion chamber internal combustion engine, characterized in that it is connected to a hot water tank (30) to inject fuel into the compact main combustion chamber, and hot water (34) is linearly injected from the outer diameter side at multiple injection ports at high speed. Fuel / hot water injector. 4. The fuel / hot water injector (10) has a fuel injection nozzle (52) as a normal automatic opening / closing hole type or pin type nozzle, and a hot water injection port (38) is provided on its outer diameter side. The screw groove (46) and the cylindrical outer jacket (39) are connected to connect to the hot water tank (30) to inject fuel into the compact main combustion chamber and rotate the hot water (34) from the outer diameter side. In addition, a fuel / hot water injector for a compact combustion chamber internal combustion engine characterized by multiple nozzle injection. 5. The fuel / hot water injector (10) has a fuel injection nozzle (52) as a normal automatic opening / closing hole type or pin type nozzle, and two hot water injection ports (38) on the outer diameter side. The screw groove (47) and the cylindrical outer jacket (39) are connected to the hot water tank (30) to inject fuel into the compact main combustion chamber and to rotate the hot water (34) stronger than the outer shape side. In addition, a fuel / hot water injector for a compact combustion chamber internal combustion engine, which is characterized by injecting two nozzles. 6. The fuel / hot water injector (10) has a fuel injection nozzle (52) as a normal automatic opening / closing hole type or pin type nozzle, and one hot water injection port (38) on the outer diameter side. It is composed of a thread groove (55) and a cylindrical outer jacket (39), and communicates with the hot water tank (30) to inject fuel into the compact main combustion chamber and rotate the hot water (34) at a high speed from the outer diameter side. A fuel / hot water injector for a compact combustion chamber internal combustion engine, which is characterized by a single-injection all-around injection. 7. A hot water pipe (33) is coiled by using a heat resistant and low friction material for the reduced shape (9) in order to increase the injection amount of hot water and maximize the circulation use of exhaust heat. The pipe is connected to the fuel / hot water injector (10) via the hot water injection valve (54) and the other is connected to the heat via the hot water injection pump (32). It is connected to the water tank (30) side and fixed to a cylinder cover (7a) equipped with a plurality of short-circuit check valves (13) via a heat insulating material (48), and the upper and outer sides thereof are provided on one side of various air flow injection holes. The contracted combustion chamber internal combustion engine according to claim 1, wherein the contracted piston (22) is slidably fitted therein so as to be slanted in a conical shape. 8. A cylindrical main combustion in which the heat conduction is reduced by including a heat insulating coating inside the cylinder cover (7b) in order to increase the injection amount of hot water and maximize the circulating use of exhaust heat. The chamber (21) is fixed via a heat insulating material (48), and at the lower end thereof, a conical shape is enlarged in accordance with the taper of the contracted shape (9) to form a rotary airflow injection hole (24) and the like, and the inner surface thereof is expanded. A groove to be a rotary airflow injection hole (24) is provided in
Since it is fixed to the cylinder cover (7a), it communicates with the short-circuit check valve (13) to form an air distribution hole (49), a rotary air flow injection hole (24), etc., and a rotary air flow etc. The compact combustion chamber internal combustion engine according to claim 1, wherein the internal combustion engine is a compact combustion chamber. 9. A gas fuel (7) is provided in the compact main combustion chamber (21).
0) and light oil fuel to inject the compressed combustion chamber gas injection light oil injection compression ignition hot water injection to form an internal combustion engine. The reduced-combustion-combustion-combustion internal-combustion engine according to claim 7 or 8, characterized in that a vessel (67) is provided in a protruding manner. 10. A compact combustion chamber stratified charge spark ignition lean burn hot water injection gas engine for injecting a gas fuel (70) into the compact main combustion chamber (21) for spark ignition combustion. A required number of gas fuel injectors (67) are projected inward from the cylindrical surface of the main combustion chamber (21) and the spark plug (6
9. The invention is also characterized in that 9) is similarly provided so as to project, and that a spark plug / hot water injector (68) is provided in place of the fuel / hot water injector (10). 8. A compact combustion chamber internal combustion engine according to item 8. 11. A reduced combustion chamber (21) for producing a lean combustion hot water injection gasoline engine, wherein a reduced combustion chamber is used to inject gasoline into the reduced main combustion chamber (21) for spark ignition combustion. 9. The reduced combustion chamber internal combustion engine according to claim 7, wherein a required number of spark plugs (69) are provided so as to project inward from the cylindrical surface of the engine. 12. A hot water pipe (33) is built in the inside of the cylinder cover (7a) in a coil shape to absorb heat by increasing the injection amount of hot water and maximizing the circulating use of exhaust heat. The cylindrical main combustion chamber (21) for performing the above is fixed through the heat insulating material (48), and the stirring air flow injection hole (2
5) To form a conical shape to form the conical shape (9), a groove for a stirring airflow injection hole (25) is provided on the inner surface, and the groove is fixed to the cylinder cover (7a). Is configured to communicate with the short-circuit check valve (13) to configure an air distribution hole (49), a stirring airflow injection hole (25), etc., so that the agitation airflow and the like can be injected all over the circumference. The reduced combustion chamber internal combustion engine according to claim 7. 13. A hot water pipe (33) is coiled inside the inner wall of the cylinder cover (7b) in order to increase the injection amount of the hot water to maximize the circulating use of exhaust heat. The cylindrical compressed main combustion chamber (21) that absorbs heat by fixing the fixed main combustion chamber (21) through the heat insulating material (48), and at the lower end thereof, the straight airflow injection hole (23) etc. A cylinder cover (7a) is formed by enlarging it in a conical shape in accordance with the taper and providing a groove to be a straight airflow injection hole (23) or the like on its inner surface.
By adhering to the short-circuit check valve (13), the air distribution hole (49) and the rectilinear airflow injection hole (23) are formed so that the rectilinear airflow can be injected all over the circumference. The reduced combustion chamber internal combustion engine according to claim 7, wherein 14. A cylindrical shape in the central axial direction in the reduced main combustion chamber (21) inside the cylinder cover (7b) for increasing the injection amount of hot water and maximizing the circulating use of exhaust heat. In addition, a combustion tube (61D) having good heat conduction is provided, and a taper is provided at the lower end, and a rotary airflow injection hole (2) is provided as an injection air inlet (62).
The compressed combustion chamber internal combustion engine according to claim 7 or claim 8, characterized in that the injection air and the like from (4) and the like are easily circulated from the center to the outer periphery and from the outer periphery to the center. 15. An inner cylinder extending in the central axial direction inside the reduced main combustion chamber (21) inside the cylinder cover (7b) in order to increase the injection amount of hot water to maximize the circulating use of exhaust heat. A combustion cylinder (61E) having an annular or spiral projection (63) on its surface is provided, and a taper is provided at the lower end to form the injection air inlet (62) at the center of the injection air from the straight airflow injection holes (23) and the like. 9. The reduced combustion chamber internal combustion engine according to claim 7, wherein the outer periphery and the outer periphery are easily circulated. 16. An inner cylinder extending in the central axial direction inside the reduced main combustion chamber (21) inside the cylinder cover (7b) in order to increase the injection amount of hot water to maximize the circulating use of exhaust heat. Combustion tube (6) with annular or spiral protrusions (63) on its surface and outer peripheral surface
1F) and a taper is provided at the lower end to facilitate the circulation of the jet air or the like from the stirring air flow jet hole (25) as the jet air inlet (62) from the center to the outer periphery and from the outer periphery to the center. The reduced combustion chamber internal combustion engine according to claim 7 or claim 8. 17. A cylindrical surface in the central axial direction inside the reduced main combustion chamber (21) inside the cylinder cover (7b) for increasing the injection amount of hot water and maximizing the circulating use of exhaust heat. A combustion cylinder (61G) having a large number of combustion cylinder holes (64) penetrating therethrough is provided with a taper at the lower end thereof, and the air injected from the rotary airflow injection hole (24) or the like is used as the injection air inlet (62) at the center. 9. The reduced combustion chamber internal combustion engine according to claim 7, wherein the outer periphery and the outer periphery are easily circulated. 18. The inner surface of the cylinder in the central axial direction of the compressed main combustion chamber (21) inside the cylinder cover (7b) for increasing the injection amount of hot water and maximizing the circulating use of exhaust heat. A combustion tube (61H) having an annular or spiral projection (63) and a large number of combustion tube holes (64) formed between the combustion tube (61H) and a taper at its lower end to form a straight airflow as an injection air inlet (62). 9. A compact combustion chamber internal combustion engine according to claim 7, wherein the injection air or the like from the injection hole (23) is easily circulated from the center to the outer periphery and from the outer periphery to the center. 19. A cylindrical inner surface in the central axial direction inside the reduced main combustion chamber (21) inside the cylinder cover (7b) for increasing the injection amount of hot water and maximizing the circulating use of exhaust heat. And a combustion cylinder (61I) having an annular or spiral projection (63) on the outer surface of the cylinder and a combustion cylinder hole (64) penetrating between the combustion cylinder (61I) and a taper at the lower end to form an injection air inlet (62). 9. The compact combustion chamber internal combustion engine according to claim 7, wherein the air blown from the agitated airflow injection hole (25) or the like is easily circulated from the center to the outer periphery and from the outer periphery to the center. 20. In order to increase the injection amount of hot water to maximize the circulating use of the exhaust heat amount, etc., in the central axis direction inside the compact main combustion chamber (21) inside the cylinder cover (7b), Instead of the combustion cylinder hole (64) of the combustion cylinder (61I), the outward gap (6
In order to provide a large number of 5), an arbitrary cross-section is formed in a vine shape and a combustion cylinder (61J) is provided with a taper at its lower end to form a rotary air flow injection hole (24) as an injection air inlet (62). ) Etc. from the center to the outer circumference
9. The reduced combustion chamber internal combustion engine according to claim 7, wherein the central portion is easily circulated from the outer periphery. 21. In order to increase the injection amount of hot water to maximize the circulating use of the exhaust heat amount, etc., in the central axial direction inside the compact main combustion chamber (21) inside the cylinder cover (7b), Instead of the combustion cylinder hole (64) of the combustion cylinder (61I), an inward gap (6
In order to provide a large number of 6), a volute-shaped cross section is formed into a vine shape, and a combustion cylinder (61K) is provided with a taper at its lower end to form a straight air flow injection hole (23) as an injection air inlet (62). 9. The compressed combustion chamber internal combustion engine according to claim 7, wherein the injection air, the combustion gas, etc. from the above) are easily circulated from the center to the outer periphery and from the outer periphery to the center. 22. A compact main combustion chamber (21) is provided before and after top dead center by projecting the head of the compact piston (22) to the inverted pan bottom shape (42) and providing a large number of irregularities (41) on the outer diameter portion. 5 crank angle
A compact piston for a compact combustion chamber internal combustion engine, characterized in that it is isolated up to about 5 ° and the amount of leaked high-pressure gas is reduced in multiple stages to provide a compact piston (22A) as an injection amount according to the application. 23. The reduced main combustion chamber (21) is cranked before and after top dead center by projecting the head of the reduced piston (22) into a truncated cone shape (43) and providing a large number of irregularities (41) on the outer diameter portion. 5 at an angle
A compact piston for a compact combustion chamber internal combustion engine, characterized in that it is isolated up to around 5 ° and the amount of leaked high-pressure gas is reduced in multiple stages to provide a compact piston (22B) as an injection amount according to the application. 24. The reduced main combustion chamber (21) is cranked before and after top dead center by projecting the head of the reduced piston (22) into a conical shape (44) and providing a large number of irregularities (41) on the outer diameter portion. 5 at an angle
A compact piston for a compact combustion chamber internal combustion engine, characterized in that it is isolated up to about 5 ° and the amount of leaked high-pressure gas is reduced in multiple stages to provide a compact piston (22C) as an injection amount according to the application. 25. The compact main combustion chamber (21) is provided around the top dead center by projecting the head of the compact piston (22) to the inverted pan bottom shape (42) and providing a large number of irregularities (41) on the outer diameter portion. 5 crank angle
Isolate up to around 5 ° to reduce the amount of leaked high-pressure gas in multiple stages, and inject a large number of straight airflow injection grooves (16) in the uppermost convex portion as the injection amount according to the application, when eliminating the small reciprocating piston Compact piston (22D) that jets a large number of straight airflow
A compact piston for an internal combustion engine with a compact combustion chamber. 26. The reduced main combustion chamber (21) is cranked before and after top dead center by projecting the head of the reduced piston (22) into a truncated cone shape (43) and providing a large number of irregularities (41) on the outer diameter portion. 5 at an angle
Isolate up to around 5 ° to reduce the amount of leaked high-pressure gas in multiple stages, and inject a large number of straight airflow injection grooves (16) in the uppermost convex portion as the injection amount according to the application, when eliminating the small reciprocating piston Compact piston (22E) that ejects a large number of straight airflows
A compact piston for an internal combustion engine with a compact combustion chamber. 27. The reduced main combustion chamber (21) is cranked before and after top dead center by projecting the head of the reduced piston (22) into a conical shape (44) and providing a large number of irregularities (41) on the outer diameter portion. 5 at an angle
Isolate up to around 5 °, reduce the leaked high-pressure gas in multiple stages, and inject a large number of straight airflow injection grooves (16) in the uppermost convex portion as an injection amount according to the application, when eliminating the small reciprocating piston Compact piston (22F) that ejects a large number of straight airflows
A compact piston for an internal combustion engine with a compact combustion chamber. 28. A compact main combustion chamber (21) is provided before and after top dead center by projecting the head of the compact piston (22) to the inverted pan bottom shape (42) and providing a large number of irregularities (41) on the outer diameter portion. 5 crank angle
Isolate up to around 5 ° to reduce the amount of leaked high-pressure gas in multiple stages and make a number of rotary airflow injection grooves (17) in the uppermost convex part as the injection amount according to the application to eliminate the small reciprocating piston Compact piston (22G) that injects a large number of rotating air streams
A compact piston for an internal combustion engine with a compact combustion chamber. 29. The reduced main combustion chamber (21) is cranked before and after top dead center by projecting the head of the reduced piston (22) into a truncated cone shape (43) and providing a large number of irregularities (41) on the outer diameter portion. 5 at an angle
Isolate up to around 5 ° to reduce the amount of leaked high-pressure gas in multiple stages and make a number of rotary airflow injection grooves (17) in the uppermost convex part as the injection amount according to the application to eliminate the small reciprocating piston Compact piston (22H) that injects a large number of rotating air streams
A compact piston for an internal combustion engine with a compact combustion chamber. 30. The reduced main combustion chamber (21) is cranked before and after top dead center by projecting the head of the reduced piston (22) into a conical shape (44) and providing a large number of irregularities (41) on the outer diameter portion. 5 at an angle
Isolate up to around 5 ° to reduce the amount of leaked high-pressure gas in multiple stages and make a number of rotary airflow injection grooves (17) in the uppermost convex part as the injection amount according to the application to eliminate the small reciprocating piston Compact piston (22I) that injects many rotating air streams
A compact piston for an internal combustion engine with a compact combustion chamber. 31. A compact main combustion chamber (21) is provided before and after top dead center by projecting the head of the compact piston (22) to the inverted pan bottom shape (42) and providing a large number of irregularities (41) on the outer diameter portion. 5 crank angle
Isolate up to about 5 ° and reduce the leaked high-pressure gas in multiple stages to make a spray amount suitable for the application. Compact piston (22J) that ejects a large number of stirring air streams
A compact piston for an internal combustion engine with a compact combustion chamber. 32. The reduced main combustion chamber (21) is cranked before and after top dead center by projecting the head of the reduced piston (22) into a truncated cone shape (43) and providing a large number of irregularities (41) on the outer diameter portion. 5 at an angle
Isolate up to about 5 ° and reduce the leaked high-pressure gas in multiple stages to provide a jetting amount according to the application as many agitation air flow injection grooves (18) are provided in the uppermost convex portion to eliminate the small reciprocating piston Compact piston (22K) that ejects a large number of stirring air streams
A compact piston for an internal combustion engine with a compact combustion chamber. 33. The reduced main combustion chamber (21) is cranked before and after top dead center by projecting the head of the reduced piston (22) into a conical shape (44) and providing a large number of irregularities (41) on the outer diameter portion. 5 at an angle
Isolate up to about 5 ° and reduce the leaked high-pressure gas in multiple stages to provide a jetting amount according to the application as many agitation air flow injection grooves (18) are provided in the uppermost convex portion to eliminate the small reciprocating piston Compact piston (22L) that jets a large number of stirring air streams
A compact piston for an internal combustion engine with a compact combustion chamber. 34. The short-circuit check valve (13) is provided with a spherical-head cylindrical body check valve body (8A) along the inner surface of a number of plate-shaped guide members (5), and a short-circuit hole is formed at the center. A disk-shaped valve seat (11) having (12) is urged by a valve spring (3) and a disk-shaped valve spring receiver (20) having an assembling screw hole so as to be openable and closable to perform a short-circuit check. The valve (13A) is configured so that the packing (19) and the tightening screw (5) are provided in the plurality of mounting holes (4).
6) is fixed by the short-circuit hole (12) and the air distribution hole (4)
The reduced-combustion-combustion-chamber internal combustion engine according to claim 1, characterized in that the internal combustion engine is in contact with (9). 35. The short-circuit check valve (13) is provided with a conical-head cylindrical body check valve body (8B) along the inner surface of a number of plate-shaped guide members (5), and a short-circuit hole is formed at the center. A disk-shaped valve seat (11) having (12) is urged by a disk spring (3) having a valve spring (3) and a disk-shaped valve spring receiver (20) having an assembly screw hole so as to be openably and closably pressed to perform a short-circuit check. The valve (13B) is configured so that the backing (19) and the tightening screw (56) are provided in the plurality of mounting holes (4).
Secured by the short-circuit hole (12) and air distribution hole (49)
The compact combustion chamber internal combustion engine according to claim 1, wherein 36. The short cut check valve (13) is provided with a ring head cylindrical body check valve body (8C) along the inner surface of a number of plate-like guide members (5), and a short cut hole is formed at the center. A disk-shaped valve seat (11) having (12) is urged by a disk spring (3) having a valve spring (3) and a disk-shaped valve spring receiver (20) having an assembly screw hole so as to be openably and closably pressed to perform a short-circuit check. A valve (13C) was constructed and fixed to the plurality of mounting holes (4) by packing (19) and tightening screws (56) to communicate with the short cut holes (12) and air distribution holes (49). The compact combustion chamber internal combustion engine according to claim 1, wherein 37. The short-circuit check valve (13) is provided with a flat-head cylindrical body check valve body (8D) along the inner surface of a number of plate-shaped guide members (5), and a short-circuit hole (center) is provided at the center. A short-circuit check valve is urged to open and close freely by a disc-shaped valve seat (11) having a disc spring (12) and a disc-shaped valve spring receiver (20) having an assembly screw hole. (13D) is configured and fixed to the plurality of mounting holes (4) by the packing (19) and the tightening screw (56) to communicate with the short cut hole (12) and the air distribution hole (49). The reduced-combustion-combustion-chamber internal combustion engine according to claim 1. 38. The amount of lubricating oil used is greatly reduced by increasing the maximum bearing load and increasing the piston side pressure by increasing the maximum combustion pressure by the contracted piston (22), for example, by a factor of 20. Reduced combustion chamber internal combustion engine according to claim 1, characterized in that the lubricating oil is diluted with water, including additives, if possible.