Patents
Sitemap › F02 - Combustion engines; Hot-gas or combustion-product engine plants › F02D - Controlling combustion engines › F02D 15 - Varying compression ratio
Patents for F02D 15 - Varying compression ratio (2,571)
03/1991
03/12/1991US4998511 Compression ignition engine with variable swept volume
02/1991
02/19/1991US4993386 Operation control system for internal combustion engine
02/12/1991US4991551 Apparatus for preventing reverse rotation of an engine
01/1991
01/29/1991US4987863 Variable compression ratio internal combustion engine
12/1990
12/27/1990WO1990015919A1 Device at an internal combustion engine
12/25/1990US4979427 Temperature-sensitive variation of the compression ratio in pistons having variable compression height
12/12/1990CN2067319U Dual-purpose engine using petrol or diesel as fuel
10/1990
10/31/1990DE4012490A1 Two stroke IC engine - has means to change timing of opening and closing of inlet valve
10/31/1990DE4012474A1 Two stroke IC engine - has variable valve timing which is adjusted to suit engine load
10/30/1990US4966666 Focusing electric discharge onto fluid confined between dielectric material and electrode
10/30/1990US4966104 Two-stroke engines
09/1990
09/25/1990US4958606 Supercharged engine
09/11/1990US4955328 Leading piston engine with two cylinders interconnected through a transfer port
09/04/1990US4953526 Portable work machine
07/1990
07/03/1990US4938186 Internal combustion engine variable stroke mechanism
06/1990
06/19/1990US4934346 Sidewall cylinder entrapment valve for internal combustion chamber
06/13/1990EP0250406B1 Piston engines
05/1990
05/17/1990WO1990005239A1 Variation of engine compression ratio
04/1990
04/17/1990US4917058 Method of reducing pumping losses and improving brake specific fuel consumption for an internal combustion engine
04/11/1990EP0362774A1 An apparatus for preventing reverse rotation of an engine
04/05/1990WO1990003507A1 Engine with variable compression ratio
04/04/1990EP0361474A1 Engine start facilitating valve
03/1990
03/06/1990US4905635 Valve gear for internal combustion engine
01/1990
01/24/1990EP0351420A1 Compression ignition engine with variable swept volume
01/03/1990EP0349149A2 Two-stroke engines
01/02/1990US4890589 Variable capacity type reciprocating piston device
01/02/1990US4890585 Internal combustion engine with valve
12/1989
12/19/1989US4887560 Crankshaft assembly for variable stroke engine for variable compression
12/13/1989EP0345366A1 Eight cycle or diesel type internal combustion engine
11/1989
11/08/1989EP0340213A1 Internal combustion engine variable stroke mechanism
10/1989
10/05/1989DE3908288A1 Method for the operation of an internal combustion engine and device for performing the method
10/03/1989US4870929 Multi-cylinder engine with uniform cylinder sensitivity to knocking
09/1989
09/26/1989CA1261019A1 Checking system of warning lamp of a vehicle
09/12/1989US4864977 Compression ratio-changing device for internal combustion engines
09/12/1989US4864975 Compression ratio-changing device for internal combustion engines
08/1989
08/30/1989EP0330638A1 Valve gear for internal combustion engine
08/29/1989US4860711 Engine with variable compression ratio
07/1989
07/27/1989DE3801102A1 Device for a reciprocating piston engine with variable combustion chamber
05/1989
05/30/1989US4834031 Variable compression-ratio control device for an internal combustion engine
05/16/1989US4830517 Device for locking rotation of an eccentric bearing of a compression ratio changing device
04/1989
04/24/1989EP0293370A4 Fluid energizing method and apparatus.
04/20/1989WO1989003476A1 Compression ignition engine with variable swept volume
03/1989
03/22/1989EP0308262A2 Variable capacity type reciprocating piston device
03/21/1989US4813395 Two-cycle engine and method of operation
03/15/1989EP0157831B1 Dynamic variable compression ratio i.c. engine
03/07/1989US4809511 Internal combustion engine
02/1989
02/21/1989US4805571 Internal combustion engine
01/1989
01/04/1989EP0297904A2 Compression ratio-changing device for internal combustion engines
01/04/1989EP0297903A2 Compression ratio-changing device for internal combustion engines
12/1988
12/07/1988EP0293370A1 Fluid energizing method and apparatus.
11/1988
11/22/1988US4785790 Variable compression height piston arrangement
11/16/1988CN88101704A Two-cycle engine and method of operation
11/15/1988US4784093 Arrangement for controlling the oil feed to a control chamber of a piston with variable compression height
11/03/1988WO1988008481A1 Two-cycle engine and method of operation
10/1988
10/27/1988DE3712842C1 Tauchkolben mit veraenderlicher Kompressionshoehe fuer Verbrennungsmotoren Plunger with veraenderlicher compression height for internal combustion engines
10/27/1988DE3711729A1 Adjustable crankshaft which makes it possible to perform continuous adjustment of the stroke of piston machines during operation
10/11/1988US4776308 Piston engines
09/1988
09/20/1988US4771742 Method for continuous camlobe phasing
09/20/1988CA1242119A1 Dynamic variable compression ratio i.c. engine
09/13/1988US4770060 Apparatus and method for variable valve timing
07/1988
07/28/1988DE3742321A1 Device for controlling compression
07/21/1988DE3735914C1 Device for the adjustment of a secondary piston arranged in the cylinder head of an internal combustion engine for adjustment of the compression ratio
07/14/1988DE3700052A1 Multi-piston internal combustion engine with common combustion chamber
06/1988
06/02/1988WO1988003835A1 Fluid energizing method and apparatus
06/01/1988EP0269125A2 Supercharged engine
04/1988
04/26/1988US4739968 A disc valve control means
03/1988
03/10/1988WO1988001684A1 Internal combustion engine variable stroke mechanism
03/02/1988CN86100053B Process and system for compression release engine retarding
01/1988
01/26/1988US4721073 Compression ratio changing device using an eccentric bearing for an internal combustion engine
01/07/1988EP0251883A1 Self-regulating combustion chamber and method for diminishing the residual gas volume of an internal-combustion engine
01/07/1988EP0250960A2 Internal-combustion engine
01/07/1988EP0250406A1 Piston engines.
12/1987
12/09/1987EP0248655A2 Swing beam internal combustion engines
10/1987
10/22/1987DE3612842A1 Internal combustion engine, especially reciprocating piston internal combustion engine, with compression space adjustable in operation
10/13/1987US4699096 Detonation prevention means for internal combustion engine
09/1987
09/23/1987EP0237814A1 Valve assembly
09/02/1987EP0234853A1 Apparatus for variable valve timing for an internal combustion engine.
08/1987
08/19/1987CN86207765U Internal combustion engine with increased expansion ratio and variable compression ratio
08/18/1987US4687348 Device for locking/unlocking rotation of an eccentric bearing used in a compression ratio changing mechanism of an internal combustion engine
06/1987
06/16/1987EP0088106B1 Control means of the combustion cycle in an internal combustion engine
05/1987
05/20/1987EP0099913B1 Internal combustion engine
04/1987
04/29/1987EP0219634A2 Compression ratio changing device using an eccentric bearing for an internal combustion engine
03/1987
03/10/1987CA1218909A1 Pistons for internal combustion engines
02/1987
02/05/1987DE3526961A1 Device for adjusting the compression ratio on an internal combustion engine
01/1987
01/08/1987DE3523601A1 Internal combustion engine with closable and variable combustion chamber
10/1986
10/29/1986CN86100053A Process and system for compression release engine retarding
10/28/1986CA1213184A1 Engine retarding system
10/15/1986EP0197852A2 Diesel engine with oil-cushioned piston
09/1986
09/10/1986CN85102778A Eccentric mechanism for automatic regulation of compression ratio of internal-combustion engine
08/1986
08/28/1986WO1986004955A1 Piston engines
07/1986
07/29/1986US4602596 Reciprocating piston-internal combustion engine with variable compression ratio
03/1986
03/18/1986EP0157831A4 Dynamic variable compression ratio i.c. engine.
02/1986
02/25/1986US4572116 Internal combustion engine
01/1986
01/15/1986EP0167691A2 Decompression apparatus for engines
10/1985
10/16/1985EP0157831A1 Dynamic variable compression ratio i.c. engine.
09/1985
09/10/1985US4539946 Method of controlling the combustion cycle in a combustion engine
09/10/1985CN85100321A A diesal engine with oil-cushioned piston
09/03/1985US4538569 Compression control system for an internal combustion engine and control method therefor
08/1985
08/13/1985CA1191792A1 Internal combustion engine
05/1985
05/14/1985US4516537 Variable compression system for internal combustion engines
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