WO1983002131A1 - Internal combustion engine - Google Patents
Internal combustion engine Download PDFInfo
- Publication number
- WO1983002131A1 WO1983002131A1 PCT/DE1981/000217 DE8100217W WO8302131A1 WO 1983002131 A1 WO1983002131 A1 WO 1983002131A1 DE 8100217 W DE8100217 W DE 8100217W WO 8302131 A1 WO8302131 A1 WO 8302131A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- internal combustion
- combustion engine
- shaft
- rotating part
- engine according
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B75/00—Other engines
- F02B75/04—Engines with variable distances between pistons at top dead-centre positions and cylinder heads
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01B—MACHINES OR ENGINES, IN GENERAL OR OF POSITIVE-DISPLACEMENT TYPE, e.g. STEAM ENGINES
- F01B3/00—Reciprocating-piston machines or engines with cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F01B3/10—Control of working-fluid admission or discharge peculiar thereto
- F01B3/101—Control of working-fluid admission or discharge peculiar thereto for machines with stationary cylinders
- F01B3/102—Changing the piston stroke by changing the position of the swash plate
Definitions
- the invention is based on an internal combustion engine according to the preamble of the main claim. It has long been known to achieve largely constant compression in series engines as well as in swashplate engines of the type under consideration by changing the piston stroke and in accordance with the combustion chamber, in order to save up to 50% fuel (Sae Paper 770 114).
- An additional significant advantage is the reduction of harmful exhaust gases, particularly in the part-load and low speed range (city traffic), which is preferably the test area of the exhaust gas laws. The reason why such a motor has not been mass-produced so far almost depends
- the internal combustion engine according to the invention with the characterizing features of the main claim has the advantage that the motor is practically torque-guided.
- the driver of a vehicle equipped with this engine arbitrarily determines the engine output via the accelerator pedal by changing the stroke of the combustion chamber. It achieves that an optimal torque acts in each load range, the change of which advantageously takes place linearly, namely proportionally to the size of the displacement.
- the speed at a given torque is determined by the load on the motor.
- the diesel engine is more economical than the Otto engine. Because of the high compression, their constancy has a favorable effect on the combustion and permissible injection duration when fuel is introduced. Since a lower final temperature is achieved in the combustion chamber due to the more favorable fuel-air ratio in the part-load range, the process efficiency is considerably more favorable than with the conventional in-line diesel engine.
- FIG. 3 is a view according to arrow 3 in FIG. 2,
- FIG. 4 shows a view according to arrow 4 in FIG. 1
- Fig. 5 is a section according to the line VV in Figure 1.
- Fig. 6 is a functional diagram.
- a swashplate motor is shown in longitudinal section in a highly simplified manner in FIG.
- a swash plate consisting of a rotating part and a non-rotating tilting part 3 is mounted on a motor shaft 1 via a bolt 4.
- the swash plate can tilt up to 30 degrees.
- the tilting part 3 is prevented from rotating by a guide lever 2a (FIG. 2).
- the guide lever 2a performs pivotal movements during operation in accordance with the wobble movement of the swash plate.
- the pistons 5 of the motor transmit the driving forces via ball connecting rods 6 to the tilting part 3, whereby the rotating part 2 is set in rotation due to the tilting angle and the " evasive power given by rotation.
- a spherical reinforcement is provided on the shaft 1 to absorb these forces is flattened laterally on the right and left (FIG. 5)
- W ⁇ PO spherical reinforcement on recesses that lead to an approximately elliptical cross-section the indicated segments of the circle being denoted by r and r-, of which r is the smaller.
- the shaft 1 is axially displaced.
- This hydraulic unit 7, 8 is arranged centrally between the engine cylinders in a cylinder block 9.
- the piston 7 or the shaft 1 is shifted arbitrarily via a foot lever linkage, not shown, by means of the default slide 10 of a servo valve, the stroke of which acts on an inner control slide 13 via a thrust bearing 11 and a fork lever 12, as a result of which the initiated movement of the piston 7 ends becomes.
- the piston 7 is locked in a known manner at every point of the possible stroke, so that it can also withstand maximum gas forces.
- the displacement of the shaft 1 by the piston 7 rotating around is transmitted to the rotating part 2 via a push lever 14, whereby the tilting angle can be adjusted in a range from 8 to 30, and the rotating part 14 becomes the rotating part via the two push levers 14 of the swash plate connected to the main bearing hub 15 of the engine using thrust lever pin bearings 16 and 17 (FIGS. 1 and 4).
- the torque itself of the shaft 1 is in the hub 15 by a working with the smallest radial play Transfer spline 18 to the flywheel and, if necessary, the output.
- the stroke adjustment is set up in such a way that a minimum remaining distance of approx. 1 mm remains between the cylinder cover of the combustion chamber and the piston crown of the piston 5.
- a tilt angle of 10 to 12 is required for operation in idle mode. Due to the safety distance of 1 mm, stroke and valve overlaps can also be recorded at top dead center without there being any piston contact.
- the following calculation example shows that the compression control is approximately constant (simple numbers have been chosen because of the divisibility).
- the stroke of the motor is adjustable between 0 to 80 mm.
- the combustion chamber compression is equal to the compression stroke •
- shaft 1 with rotating part 2 lever 14 and navel 15 are mounted in a balancing device, namely at the end of shaft 1 at 11 in a fixed swivel bearing which can be rotated about a center point.
- the end of the hub is arranged on the hub side so that it can move to the right and left in a pivot bearing of shaft 1, which is usually spring-supported.
- a right-hand torque of "Zpr links” acts on the shaft 1 from the center of the bolt 4, with a lever arm up to the center of the fixed bearing.
- OMPI be that the difference between Ml and Mr is compensated in every angular position.
- the thrust levers 14 shift when the swash plate is pivoted.
- the mass of the weight 22 attached to the lower lever eye 17 is designed in relation to the length 1 of the lever shaft 14 so that the two moments in the center S of the bolt 17 balance each other out and therefore there is no influence on the smoothness of the movement.
- Lever 14 is balanced to bolt center 17 and shaft 1.
- the tilting part of the swash plate 3, in which the balls of the connecting rods 6 are mounted, represents a mass which executes a swiveling movement which wobbles around the center, the counterforce on the entire motor in relation to the mass in "swash plate” to the mass “Motor” acts.
- the engine also carries 28 movements at the front of the V-belt pulley and at the rear of the flywheel, by means of which direction and force can be measured. By applying counterweights counter to the force direction, the forces can be reduced by half.
- the engine is exceptionally quiet.
- the inner housing with the motor cylinders can also be adjustable via an additional thrust bearing instead of the shaft 1.
- OMPI • Lubrication is carried out by means of a not darge presented hydraulic unit consisting of a pump (etl with 'variable V ⁇ rdervolumen to tripod ⁇ consumption saving.), The hydraulic accumulator with 3 - 4 1 content and solenoid valve to when starting the engine so ⁇ continued an oil pressure with ca To have 40 bar available.
- a pump etl with 'variable V ⁇ rdervolumen to tripod ⁇ consumption saving.
- the hydraulic accumulator with 3 - 4 1 content and solenoid valve to when starting the engine so ⁇ continued an oil pressure with ca To have 40 bar available.
- Such hydraulic units are already available in many motor vehicles, for example for the steering rings.
- the oil reaches the cylinder head bore 23 kopfhd via a screw connection, via a sealed displaceable pipeline 24, into the pierced main shaft 1 to bolts 4 and from there to the radial bearing 25 and the axial bearings 26 also to the balls of the connecting rods 6 and through them a bore provided 'connecting rod to the piston. 5
- the radial bearing 25 between the tilting part 3 and the rotating part 2 consists of a nitrided steel bushing which is drawn onto the rotating aluminum part 2 and which interacts with a normal three-layer sliding bearing of the tilting part.
- the axial bearings 26 consist of a nitrided steel disk with a counter-rotating disk, which is also provided with a special sliding layer.
- these thrust bearings 26 are provided with oil pockets 27 which are filled on both sides by the escaping oil from the radial bearing 25.
- the oil pockets 27 are filled on both sides by the escaping oil from the radial bearing 25.
- this thrust bearing 26 is that due to the off-center attack of the connecting rods 16 in the region of the axial bearing play between the non-rotating part 3 and the rotating part 2 from 0.05 mm to 0.07 mm, the part is inclined 3 in 2 results in a few tenths of an angular minute, thereby automatically forming an oil film between the steel disc and the counter-rotating disc with bearing metal, in the same way as is the case with a radial bearing.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Reciprocating Pumps (AREA)
Description
Claims
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE1981/000217 WO1983002131A1 (en) | 1981-12-10 | 1981-12-10 | Internal combustion engine |
| DE81DE8100217T DE3153060D2 (en) | 1981-12-10 | 1981-12-10 | Internal combustion engine |
| EP19820900089 EP0096025A1 (de) | 1981-12-10 | 1981-12-10 | Verbrennungsmotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/DE1981/000217 WO1983002131A1 (en) | 1981-12-10 | 1981-12-10 | Internal combustion engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1983002131A1 true WO1983002131A1 (en) | 1983-06-23 |
Family
ID=6723545
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE1981/000217 Ceased WO1983002131A1 (en) | 1981-12-10 | 1981-12-10 | Internal combustion engine |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP0096025A1 (de) |
| DE (1) | DE3153060D2 (de) |
| WO (1) | WO1983002131A1 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897490A (en) * | 1987-02-25 | 1990-01-30 | Bristol-Meyers Company | Antihypercholesterolemic tetrazole compounds |
| US5079996A (en) * | 1991-01-08 | 1992-01-14 | General Motors Corporation | Positive displacement control for a variable displacement compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB212884A (en) * | 1923-03-16 | 1925-05-18 | Paul Gaston Gerardin | Improvements in and relating to swash plate pumps and motors |
| DE534598C (de) * | 1930-02-04 | 1931-09-29 | Max Szombathy | Selbsttaetige Regelung von Brennkraftmaschinen mit Schraegscheibenantrieb durch gemeinsame Verstellung des Hubes und der Verdichtung |
| DE1576187A1 (de) * | 1967-07-26 | 1970-05-27 | Pattas Dr Ing Konstantin | Taumelscheiben-Brennkraftmaschine |
| FR2277233A1 (fr) * | 1974-07-05 | 1976-01-30 | Girodin Marius | Moteur a cylindree variable |
-
1981
- 1981-12-10 EP EP19820900089 patent/EP0096025A1/de not_active Withdrawn
- 1981-12-10 WO PCT/DE1981/000217 patent/WO1983002131A1/de not_active Ceased
- 1981-12-10 DE DE81DE8100217T patent/DE3153060D2/de not_active Expired
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB212884A (en) * | 1923-03-16 | 1925-05-18 | Paul Gaston Gerardin | Improvements in and relating to swash plate pumps and motors |
| DE534598C (de) * | 1930-02-04 | 1931-09-29 | Max Szombathy | Selbsttaetige Regelung von Brennkraftmaschinen mit Schraegscheibenantrieb durch gemeinsame Verstellung des Hubes und der Verdichtung |
| DE1576187A1 (de) * | 1967-07-26 | 1970-05-27 | Pattas Dr Ing Konstantin | Taumelscheiben-Brennkraftmaschine |
| FR2277233A1 (fr) * | 1974-07-05 | 1976-01-30 | Girodin Marius | Moteur a cylindree variable |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4897490A (en) * | 1987-02-25 | 1990-01-30 | Bristol-Meyers Company | Antihypercholesterolemic tetrazole compounds |
| US5079996A (en) * | 1991-01-08 | 1992-01-14 | General Motors Corporation | Positive displacement control for a variable displacement compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0096025A1 (de) | 1983-12-21 |
| DE3153060D2 (en) | 1984-10-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| AK | Designated states |
Designated state(s): DE GB JP SE US |
|
| AL | Designated countries for regional patents |
Designated state(s): FR |
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