CN112282995A - A gas-phase jet-assisted premixing fuel injector and its control method - Google Patents
A gas-phase jet-assisted premixing fuel injector and its control method Download PDFInfo
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- CN112282995A CN112282995A CN202011170159.XA CN202011170159A CN112282995A CN 112282995 A CN112282995 A CN 112282995A CN 202011170159 A CN202011170159 A CN 202011170159A CN 112282995 A CN112282995 A CN 112282995A
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- oil
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- pressure
- valve body
- injector
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- 239000000446 fuel Substances 0.000 title claims abstract description 58
- 238000000034 method Methods 0.000 title claims abstract description 10
- 238000002347 injection Methods 0.000 claims abstract description 37
- 239000007924 injection Substances 0.000 claims abstract description 37
- 239000003921 oil Substances 0.000 claims description 135
- 239000007789 gas Substances 0.000 claims description 28
- 239000000295 fuel oil Substances 0.000 claims description 20
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 16
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 8
- 239000001257 hydrogen Substances 0.000 claims description 8
- 229910052739 hydrogen Inorganic materials 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 5
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 230000007704 transition Effects 0.000 claims description 2
- 238000002485 combustion reaction Methods 0.000 abstract description 16
- 239000003595 mist Substances 0.000 abstract description 10
- 239000003344 environmental pollutant Substances 0.000 abstract description 5
- 239000006229 carbon black Substances 0.000 abstract description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 230000020169 heat generation Effects 0.000 abstract 1
- 239000002245 particle Substances 0.000 description 9
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 7
- 239000007921 spray Substances 0.000 description 5
- 238000000889 atomisation Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 239000002283 diesel fuel Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000010710 diesel engine oil Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M51/00—Fuel-injection apparatus characterised by being operated electrically
- F02M51/06—Injectors peculiar thereto with means directly operating the valve needle
- F02M51/061—Injectors peculiar thereto with means directly operating the valve needle using electromagnetic operating means
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M43/00—Fuel-injection apparatus operating simultaneously on two or more fuels, or on a liquid fuel and another liquid, e.g. the other liquid being an anti-knock additive
- F02M43/04—Injectors peculiar thereto
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/04—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00 having valves, e.g. having a plurality of valves in series
- F02M61/10—Other injectors with elongated valve bodies, i.e. of needle-valve type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M61/00—Fuel-injectors not provided for in groups F02M39/00 - F02M57/00 or F02M67/00
- F02M61/16—Details not provided for in, or of interest apart from, the apparatus of groups F02M61/02 - F02M61/14
- F02M61/18—Injection nozzles, e.g. having valve seats; Details of valve member seated ends, not otherwise provided for
- F02M61/1886—Details of valve seats not covered by groups F02M61/1866 - F02M61/188
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
- F02M67/02—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being compressed air, e.g. compressed in pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
- F02M67/06—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type the gas being other than air, e.g. steam, combustion gas
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
- F02M67/10—Injectors peculiar thereto, e.g. valve less type
- F02M67/12—Injectors peculiar thereto, e.g. valve less type having valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M67/00—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type
- F02M67/14—Apparatus in which fuel-injection is effected by means of high-pressure gas, the gas carrying the fuel into working cylinders of the engine, e.g. air-injection type characterised by provisions for injecting different fuels, e.g. main fuel and readily self-igniting starting fuel
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fuel-Injection Apparatus (AREA)
Abstract
本发明的目的在于提供一种气相射流辅助预混喷油器及其控制方法，包括喷油器阀体，喷油器阀体里设置针阀，针阀与其上方的喷油器阀体内壁之间安装回复弹簧，喷油器阀体内壁顶部设置电磁线圈，喷油器阀体上分别开设进油道和进气道，喷油器阀体的下端部设置喷油孔，针阀与喷油器阀体之间形成蓄油腔。本发明喷射的油雾空气接触面积大，燃烧更加充分，产生的热量更多，生成的NOx、HC、CO、PM等环境污染物和不完全燃烧产生的炭黑大大减少，柴油机的动力性、经济性、热效率提高，喷油孔不易被积炭阻塞。
The purpose of the present invention is to provide a gas-phase jet assisted premixed fuel injector and a control method thereof, including a fuel injector valve body, a needle valve is arranged in the fuel injector valve body, and the needle valve is connected with the inner wall of the fuel injector valve above it. A return spring is installed between the two parts, an electromagnetic coil is installed on the top of the inner wall of the injector valve body, an oil inlet channel and an air intake channel are respectively set on the injector valve body, and the lower end of the injector valve body is provided with an oil injection hole, and the needle valve is connected to the fuel injection channel. An oil storage chamber is formed between the valve bodies of the valve. The oil mist air sprayed by the invention has a large contact area, more sufficient combustion, more heat generation, and greatly reduced environmental pollutants such as NOx, HC, CO, PM and carbon black generated by incomplete combustion, and the power of the diesel engine, The economy and thermal efficiency are improved, and the injection holes are not easily blocked by carbon deposits.
Description
Technical Field
The invention relates to an oil injector, in particular to a diesel engine oil injector and an injection control method thereof.
Background
The oil sprayer is an indispensable device of a diesel engine, the traditional oil sprayer sprays fuel oil with poor atomization, so that a nozzle is easy to deposit carbon and difficult to start or even block, and due to uneven oil mist particles, the combustion is insufficient, the economy of the diesel engine is poor, the dynamic property is reduced, the thermal efficiency is reduced, harmful emissions such as NOx, HC, CO, PM and the like are increased, and the environment is polluted.
Increasing injection pressure is one way to improve fuel atomization. The higher the pressure is, the smaller and more uniform the volume of the oil mist particles is, and the contact surface of fuel and air is increased, so that the combustion is more sufficient, more energy is emitted, and the generation and emission of harmful substances in the environment are reduced.
Modifying the combustion mode of a diesel engine is another way to improve fuel atomization. The combustion mode of the diesel engine is that diesel oil is sprayed into a combustion chamber through an oil sprayer and is mixed with air to be combusted, namely, the diesel oil is mixed and combusted at the same time. This combustion mode does not provide sufficient mixing of fuel and air and therefore insufficient combustion. Premixing the fuel with air prior to the combustion chamber allows the air to be more thoroughly mixed with the fuel and thus more thoroughly combusted.
Disclosure of Invention
The invention aims to provide a gas-phase jet-assisted premixed fuel injector and a control method thereof, which improve fuel atomization, oil-gas premixing and increase fuel pressure.
The purpose of the invention is realized as follows:
the invention relates to a gas-phase jet-assisted premixed fuel injector, which is characterized in that: the oil injector comprises an oil injector valve body, wherein a needle valve is arranged in the oil injector valve body, a return spring is arranged between the needle valve and the inner wall of the oil injector valve body above the needle valve, an electromagnetic coil is arranged at the top of the inner wall of the oil injector valve body, an oil inlet channel and an air inlet channel are respectively formed in the oil injector valve body, an oil injection hole is formed in the lower end part of the oil injector valve body, and an oil storage cavity.
The gas-phase jet flow auxiliary premixed fuel injector can further comprise:
1. the both ends of oil inlet way are outer oil inlet and interior oil inlet respectively, and the both ends of intake duct are outer air inlet and interior air inlet respectively, and the oil pipe is connected to outer oil inlet, and outer air inlet connection intake pipe, the position of interior air inlet are higher than interior oil inlet, the upper portion of the section of needle valve is wider in its lower part, and the middle part is the trapezoidal that falls of transition, and when the needle valve was taken a seat the state, interior oil inlet and interior air inlet all were separated by the needle valve with the oil reservoir, and the needle valve rebound back, interior oil inlet at first communicates with each other with the oil reservoir, and along with the needle valve further shifts up.
2. When the inner air inlet is just communicated with the oil storage cavity, the bottom of the needle valve separates the oil storage cavity from the oil injection hole, and after the needle valve moves upwards continuously, the oil storage cavity is communicated with the oil injection hole for injection.
The invention relates to a gas-phase jet flow assisted premixing oil injection control method, which is characterized by comprising the following steps of: high-pressure fuel oil is introduced into the oil inlet channel, high-pressure gas is introduced into the oil inlet channel, the electromagnetic coil is electrified to attract the needle valve to move upwards along the inner wall of the oil injector valve body, the inner oil inlet is opened firstly, only the inner oil inlet is opened, and the high-pressure fuel oil is temporarily stored in the oil storage cavity through the oil inlet channel; the needle valve is continuously attracted by the electrified electromagnetic coil to move upwards, the inner air inlet is opened later, high-pressure gas enters the oil storage cavity through the air inlet channel, and at the moment, high-pressure fuel oil and high-pressure air are separated by the lower end of the needle valve; the needle valve continues to move upwards along the inner wall of the oil injector valve body, the lower end of the needle valve leaves a fine gate opening at the lower part of the oil injector valve body, high-pressure fuel oil and high-pressure gas are contacted and mixed in the oil storage cavity, at the moment, the oil injection hole is opened, and the high-pressure mixture is extruded out of the oil injection hole under the action of pressure.
The gas-phase jet flow assisted premixing oil injection control method can also comprise the following steps:
1. the high-pressure gas is high-pressure air, high-pressure methane, high-pressure hydrogen or high-pressure oxygen.
The invention has the advantages that: when the gas introduced into the air inlet is air, the fuel oil and the air are premixed in the oil storage cavity, so that the fuel oil can be combusted more fully while the fuel oil pressure is increased; when the gas introduced into the gas inlet channel is combustible gas such as methane, hydrogen and the like, the fuel oil and the combustible gas are premixed in the oil storage cavity, so that dual-fuel combustion is realized, the mixing turbulence intensity is increased, and the injection pressure is improved; when the gas that the intake duct let in is the pure oxygen, fuel and pure oxygen are in the oil storage cavity premix, improve pressure to make the fuel burning more abundant, environmental pollutant generates the significantly reduced, diesel engine economic nature, dynamic nature, thermal efficiency improve greatly.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural diagram of an oil inlet in an open state when the electromagnetic coil is electrified;
FIG. 3 is a schematic structural view showing an open state of an intake port when the solenoid is energized;
FIG. 4 is a schematic structural view of the oil injection state of the oil injection hole when the electromagnetic coil is energized;
FIG. 5 is a flow chart of the present invention.
Detailed Description
The invention will now be described in more detail by way of example with reference to the accompanying drawings in which:
with reference to fig. 1-5, the fuel injector comprises a fuel injector valve body 1, an electromagnetic coil 2, a return spring 3, an oil inlet 4, an oil inlet channel 5, an air inlet 6, an air inlet channel 7, a needle valve 8, an oil storage cavity 9 and a fuel injection hole 10. The needle valve 8, the return spring 3 and the electromagnetic coil 2 are sequentially installed from the upper part of the fuel injector valve body 1. One end of the return spring 3 is fixedly connected with the needle valve 8, and the other end of the return spring is fixedly connected with the top end of the inner wall of the fuel injector valve body 1 and used for driving the needle valve 8 to axially move along the inner wall of the fuel injector valve body. The electromagnetic coil 2 is arranged on the top of the inner wall of the oil injector valve body 1 in a circular ring mode and used for attracting the needle valve 8 mutually, the electromagnetic coil 2 is electrified, and the needle valve 8 moves upwards along the inner wall of the oil injector valve body 1. An oil inlet channel 5 and an air inlet channel 7 are arranged in the oil sprayer valve body 1, an oil inlet 4 and an air inlet 6 are arranged on two sides of the oil sprayer valve body 1, and the position of the air inlet 6 is higher than that of the oil inlet 4. The lower end of the needle valve 8 and the inner wall of the fuel injector valve body 1 form a fuel storage cavity 9, a pressure chamber and a premixing chamber, and the bottom of the fuel storage cavity 9 is provided with a fuel injection hole 10. The injection hole 10 is located at the lower part of the injector valve body 1.
According to different gases introduced into the air inlet, the gas-phase jet flow assisted multimode premixed injection method comprises the following steps:
the first implementation mode comprises the following steps:
high-pressure fuel oil is introduced into the oil inlet 4 and the oil inlet channel 5, high-pressure air is introduced into the air inlet 6 and the air inlet channel 7, the electromagnetic coil 2 is electrified, and the needle valve 8 is attracted to move upwards along the inner wall of the oil sprayer valve body 1. As shown in fig. 2, the oil inlet 4 is opened first, and only the oil inlet 4 is opened, and the high-pressure fuel is temporarily stored in the oil accumulation chamber 9 through the oil inlet passage 5. The needle valve 8 continues to be attracted upward by the energized solenoid 2, as shown in fig. 3, the intake port 6 is then opened, and high-pressure air enters the oil reservoir chamber 9 through the intake port 7, at which time the high-pressure fuel and the high-pressure air are separated by the lower end of the needle valve 8 without contact. The needle valve 8 continues to move upwards along the inner wall of the fuel injector valve body 1, as shown in fig. 4, the lower end of the needle valve 8 leaves a thinner gate opening at the lower part of the fuel injector, high-pressure fuel and high-pressure air are contacted and mixed in the oil storage cavity 9, at the moment, the fuel injection hole 10 is opened, the high-pressure mixture is extruded out from the fuel injection hole 10 under the action of pressure, and due to high pressure, the fuel injection hole 10 sprays ultrafine fuel mist particles, the volume of the fuel mist particles is extremely small, the contact area with air is increased, combustion is more sufficient, more heat is generated, generated environmental pollutants such as NOx, HC, CO, PM and the like and carbon black generated by incomplete combustion are greatly reduced, the dynamic property, the economical efficiency and the thermal efficiency of the diesel engine are improved.
The second embodiment:
high-pressure fuel oil is introduced into the oil inlet 4 and the oil inlet channel 5, combustible gas such as high-pressure methane, hydrogen and the like is introduced into the air inlet 6 and the air inlet channel 7, the electromagnetic coil 2 is electrified, and the needle valve 8 is attracted to move upwards along the inner wall of the oil sprayer valve body 1. As shown in fig. 2, the oil inlet 4 is opened first, and only the oil inlet 4 is opened, and the high-pressure fuel is temporarily stored in the oil accumulation chamber 9 through the oil inlet passage 5. The needle valve 8 continues to be attracted by the electrified electromagnetic coil 2 to move upwards, as shown in fig. 3, the air inlet 6 is opened subsequently, combustible gas such as high-pressure methane, hydrogen and the like enters the oil storage cavity 9 through the air inlet channel 7, and at the moment, the high-pressure fuel oil and the combustible gas such as the high-pressure methane, the hydrogen and the like are separated by the lower end of the needle valve 8 and are not contacted. The needle valve 8 continues to move upwards along the inner wall of the fuel injector valve body 1, as shown in fig. 4, the lower end of the needle valve 8 leaves a thinner gate opening at the lower part of the fuel injector, high-pressure fuel oil is contacted and mixed with combustible gas such as high-pressure methane, hydrogen and the like in the oil storage cavity 9, at the moment, the fuel injection hole 10 is opened, the high-pressure mixture is extruded out from the fuel injection hole 10 under the action of pressure, because of high pressure, the fuel injection hole 10 sprays extremely fine oil mist particles, the volume of the oil mist particles is extremely small, the contact area of the oil mist particles with air is increased, the combustible gas is mixed in the fuel oil, the combustion can be more sufficient, more heat is generated, the combustible gas such as methane, hydrogen and the like is clean energy, the generated environmental pollutants such as NOx, HC, CO, PM and the like and the carbon black generated by incomplete combustion can. Meanwhile, the gas inlet sprays combustible gas, and the invention is a dual-fuel oil sprayer.
The third embodiment is as follows:
high-pressure fuel oil is introduced into the oil inlet 4 and the oil inlet channel 5, high-pressure pure oxygen is introduced into the air inlet 6 and the air inlet channel 7, the electromagnetic coil 2 is electrified, and the needle valve 8 is attracted to move upwards along the inner wall of the oil injector valve body 1. As shown in fig. 2, the oil inlet 4 is opened first, and only the oil inlet 4 is opened, and the high-pressure fuel is temporarily stored in the oil accumulation chamber 9 through the oil inlet passage 5. The needle valve 8 continues to be attracted by the energized solenoid 2 to move upwards, as shown in fig. 3, the air inlet 6 is then opened, and the high-pressure pure oxygen enters the oil storage chamber 9 through the air inlet channel 7, and at the moment, the high-pressure fuel and the high-pressure pure oxygen are separated by the lower end of the needle valve 8 and do not contact. The needle valve 8 continues to move upwards along the inner wall of the fuel injector valve body 1, as shown in fig. 4, the lower end of the needle valve 8 leaves a thinner gate opening at the lower part of the fuel injector, the high-pressure fuel and the high-pressure pure oxygen are contacted and mixed in the oil storage cavity 9, at the moment, the fuel injection hole 10 is opened, the high-pressure mixture is extruded out from the fuel injection hole 10 under the action of pressure, because of the high pressure, the fuel injection hole 10 sprays extremely fine oil mist particles, the volume of the oil mist particles is extremely small, the contact area with air is increased, the pure oxygen mixed in the fuel can be fully combusted, more heat is generated, the generated environmental pollutants such as NOx, HC, CO, PM and the like and carbon black generated by incomplete combustion can be greatly reduced, the dynamic property, the economical efficiency and the thermal efficiency of.
Claims (5)
1. A gas phase jet flow auxiliary premixing oil injector is characterized in that: the oil injector comprises an oil injector valve body, wherein a needle valve is arranged in the oil injector valve body, a return spring is arranged between the needle valve and the inner wall of the oil injector valve body above the needle valve, an electromagnetic coil is arranged at the top of the inner wall of the oil injector valve body, an oil inlet channel and an air inlet channel are respectively formed in the oil injector valve body, an oil injection hole is formed in the lower end part of the oil injector valve body, and an oil storage cavity.
2. A gas phase jet assisted premix fuel injector as claimed in claim 1 wherein: the both ends of oil inlet way are outer oil inlet and interior oil inlet respectively, and the both ends of intake duct are outer air inlet and interior air inlet respectively, and the oil pipe is connected to outer oil inlet, and outer air inlet connection intake pipe, the position of interior air inlet are higher than interior oil inlet, the upper portion of the section of needle valve is wider in its lower part, and the middle part is the trapezoidal that falls of transition, and when the needle valve was taken a seat the state, interior oil inlet and interior air inlet all were separated by the needle valve with the oil reservoir, and the needle valve rebound back, interior oil inlet at first communicates with each other with the oil reservoir, and along with the needle valve further shifts up.
3. A gas phase jet assisted premix fuel injector as claimed in claim 2 characterized by: when the inner air inlet is just communicated with the oil storage cavity, the bottom of the needle valve separates the oil storage cavity from the oil injection hole, and after the needle valve moves upwards continuously, the oil storage cavity is communicated with the oil injection hole for injection.
4. A gas phase jet flow assisted premixing oil injection control method is characterized in that: high-pressure fuel oil is introduced into the oil inlet channel, high-pressure gas is introduced into the oil inlet channel, the electromagnetic coil is electrified to attract the needle valve to move upwards along the inner wall of the oil injector valve body, the inner oil inlet is opened firstly, only the inner oil inlet is opened, and the high-pressure fuel oil is temporarily stored in the oil storage cavity through the oil inlet channel; the needle valve is continuously attracted by the electrified electromagnetic coil to move upwards, the inner air inlet is opened later, high-pressure gas enters the oil storage cavity through the air inlet channel, and at the moment, high-pressure fuel oil and high-pressure air are separated by the lower end of the needle valve; the needle valve continues to move upwards along the inner wall of the oil injector valve body, the lower end of the needle valve leaves a fine gate opening at the lower part of the oil injector valve body, high-pressure fuel oil and high-pressure gas are contacted and mixed in the oil storage cavity, at the moment, the oil injection hole is opened, and the high-pressure mixture is extruded out of the oil injection hole under the action of pressure.
5. The gas-phase jet-assisted premixing oil injection control method as claimed in claim 4, characterized in that: the high-pressure gas is high-pressure air, high-pressure methane, high-pressure hydrogen or high-pressure oxygen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011170159.XA CN112282995B (en) | 2020-10-28 | 2020-10-28 | A gas-phase jet-assisted premixing fuel injector and its control method |
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|---|---|---|---|
| CN202011170159.XA CN112282995B (en) | 2020-10-28 | 2020-10-28 | A gas-phase jet-assisted premixing fuel injector and its control method |
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| CN112282995A true CN112282995A (en) | 2021-01-29 |
| CN112282995B CN112282995B (en) | 2021-12-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115898726A (en) * | 2022-11-25 | 2023-04-04 | 浙江派尼尔科技股份有限公司 | A kind of entrainment injection supply system for hydrogen fuel internal combustion engine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2924128A1 (en) * | 1979-06-15 | 1980-12-18 | Motoren Werke Mannheim Ag | Diesel engine using different fuel for starting and running - has single injector delivering starting and running fuel in sequence |
| CN102105673A (en) * | 2008-06-27 | 2011-06-22 | 西港能源有限公司 | Fuel injection valve and method for co-injecting a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine |
| CN102734032A (en) * | 2012-06-19 | 2012-10-17 | 浙江大学 | High-pressure air-assisted fuel oil spray device |
| CN103958878A (en) * | 2011-09-30 | 2014-07-30 | 卡特彼勒公司 | Single actuator fuel injector for dual fuels |
| CN104428522A (en) * | 2012-10-19 | 2015-03-18 | 三菱重工业株式会社 | Fuel gas injection valve, dual-fuel gas engine, and fuel gas injection method |
| CN204900133U (en) * | 2015-07-07 | 2015-12-23 | 中国人民解放军装甲兵工程学院 | Engine double fuel is injection nozzle simultaneously |
-
2020
- 2020-10-28 CN CN202011170159.XA patent/CN112282995B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2924128A1 (en) * | 1979-06-15 | 1980-12-18 | Motoren Werke Mannheim Ag | Diesel engine using different fuel for starting and running - has single injector delivering starting and running fuel in sequence |
| CN102105673A (en) * | 2008-06-27 | 2011-06-22 | 西港能源有限公司 | Fuel injection valve and method for co-injecting a liquid and a gaseous fuel into the combustion chamber of an internal combustion engine |
| CN103958878A (en) * | 2011-09-30 | 2014-07-30 | 卡特彼勒公司 | Single actuator fuel injector for dual fuels |
| CN102734032A (en) * | 2012-06-19 | 2012-10-17 | 浙江大学 | High-pressure air-assisted fuel oil spray device |
| CN104428522A (en) * | 2012-10-19 | 2015-03-18 | 三菱重工业株式会社 | Fuel gas injection valve, dual-fuel gas engine, and fuel gas injection method |
| CN204900133U (en) * | 2015-07-07 | 2015-12-23 | 中国人民解放军装甲兵工程学院 | Engine double fuel is injection nozzle simultaneously |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115898726A (en) * | 2022-11-25 | 2023-04-04 | 浙江派尼尔科技股份有限公司 | A kind of entrainment injection supply system for hydrogen fuel internal combustion engine |
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