| Patents for F01L 13 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations (9,664) |
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| 04/14/1987 | US4656976 Hydraulic rocker arm |
| 04/07/1987 | US4655178 Cocmpression relief engine brake for internal combustion engines |
| 04/07/1987 | US4655176 Adjustable ratio roller rocker for internal combustion engines |
| 04/01/1987 | EP0216647A1 Valve control system for an internal-combustion engine with disconnectable rockers |
| 03/26/1987 | DE3630766A1 Valve actuating device |
| 03/24/1987 | US4651687 Automatic compression releasing device for four-cycle engine |
| 03/24/1987 | US4651684 Valve timing control system for internal combustion engine |
| 03/11/1987 | EP0213759A1 Valve operating mechanism |
| 03/10/1987 | US4648365 Engine compression braking system for an internal combustion engine |
| 03/10/1987 | US4648362 Decompression arrangement for a combustion engine |
| 03/05/1987 | DE3531287A1 Two-stroke internal combustion engine controlled by rotary slide valve |
| 02/26/1987 | DE3529768A1 Internal combustion engine with an exhaust brake |
| 02/26/1987 | DE3529767A1 Engine brake device for an internal combustion engine |
| 02/25/1987 | EP0211170A1 Engine retarding method and apparatus |
| 02/17/1987 | US4643141 Internal combustion engine valve lift and cam duration control system |
| 02/10/1987 | US4641613 Process for the starting and low-load running of a diesel engine and a diesel engine putting this process into practice |
| 02/04/1987 | CN86103699A Engine retarding method and apparatus |
| 01/31/1987 | CN85101733A Prssure releasing device of the internal combustion engine |
| 01/27/1987 | US4638773 Variable valve lift/timing mechanism |
| 01/21/1987 | EP0209506A1 A method for controlling the working cycle of an internal combustion engine |
| 01/14/1987 | EP0208663A1 Tappet system for internal combustion engines fitted with variable-profile camshafts |
| 01/13/1987 | US4635595 Starting method for internal combustion engine |
| 01/13/1987 | US4635592 Valve control for an internal combustion engine |
| 01/06/1987 | CA1216201A1 Valve actuating mechanism having stopping function for internal combustion engines |
| 12/30/1986 | US4633403 Engine valve timing |
| 12/30/1986 | EP0205527A1 Arrangements for converting rotary motion to linear motion |
| 12/09/1986 | US4627391 Engine valve train system |
| 12/03/1986 | EP0203320A2 Variable valve drive for an internal-combustion engine |
| 11/12/1986 | EP0097665B1 Variable timing for four stroke engine |
| 10/28/1986 | US4619228 Automatic compression release for two-cycle engine |
| 10/28/1986 | CA1213184A1 Engine retarding system |
| 10/21/1986 | US4617880 Valve actuating apparatus for optionally resting the operation of a valve in internal combustion engine |
| 10/08/1986 | EP0196441A1 Valve control system |
| 10/08/1986 | EP0196438A2 Valve control for a reciprocating internal-combustion engine |
| 10/07/1986 | US4615313 Automatic decompression device for internal combustion engine |
| 10/07/1986 | US4615312 Motorcycle engine having automatic decompression device |
| 10/07/1986 | US4615307 Hydraulic valve lifter for variable displacement engine |
| 10/07/1986 | US4615306 Engine valve timing control system |
| 09/23/1986 | US4612887 Valve actuating apparatus for resting the operation of a valve in internal combustion engine |
| 09/23/1986 | US4612884 Valve operating and interrupting mechanism for internal combustion engine |
| 09/16/1986 | US4611558 Valve actuating apparatus in internal combustion engine |
| 09/09/1986 | US4610227 Automatic decompression system for starting engine |
| 09/03/1986 | EP0193142A1 Engine-braking system for an internal-combustion engine |
| 08/26/1986 | US4607600 Valve actuating apparatus in internal combustion engine |
| 08/05/1986 | US4603663 Rockerarm system for controlling valves in an internal combustion engine |
| 07/29/1986 | US4602597 Variable push rod |
| 07/24/1986 | EP0172197A4 Poppet valve drive. |
| 07/02/1986 | EP0186341A1 Engine valve train system |
| 06/19/1986 | WO1986003550A1 Arrangements for converting rotary motion to linear motion |
| 06/10/1986 | US4593662 Valve control of a supercharged four-cycle internal combustion engine |
| 06/03/1986 | US4592319 Engine retarding method and apparatus |
| 05/27/1986 | US4590905 Process for decompression control in internal combustion engine and apparatus therefor |
| 05/20/1986 | US4589387 Valve operating device with stopping function for internal combustion engine |
| 05/13/1986 | US4587936 Control apparatus for intake and exhaust valves of an internal combustion engine |
| 05/13/1986 | US4587934 Variable-timing valve actuating mechanism |
| 05/07/1986 | EP0179990A2 Method for variable valve timing in an internal combustion engine |
| 04/29/1986 | US4584974 Valve operation changing system of internal combustion engine |
| 04/22/1986 | US4583501 Device for controlling the phased displacement of rotating shafts |
| 04/22/1986 | US4583498 Method of changing the direction of rotation of an internal combustion engine, and an engine applying the method |
| 04/08/1986 | US4580533 Valve mechanism having variable valve timing |
| 04/02/1986 | EP0176001A2 Decompression device for internal-combustion engines |
| 03/18/1986 | US4576128 Valve operation stopping means for multi-cylinder engine |
| 02/26/1986 | EP0172197A1 Poppet valve drive |
| 02/25/1986 | US4572118 Variable valve timing for four-stroke engines |
| 02/25/1986 | US4572114 Process and apparatus for compression release engine retarding producing two compression release events per cylinder per engine cycle |
| 02/18/1986 | US4570581 Device for regulating the axial position of a variable-profile camshaft, in particular, for controlling the timing system on an engine |
| 02/04/1986 | US4567861 Engine valve operating system for internal combustion engine |
| 01/15/1986 | EP0167886A1 Starting process for an internal-combustion engine |
| 01/15/1986 | EP0167691A2 Decompression apparatus for engines |
| 01/08/1986 | EP0167267A1 Process and system for compression release engine retarding |
| 01/02/1986 | EP0165927A1 Compression relief |
| 12/27/1985 | EP0069749B1 Variable lift cam follower |
| 12/24/1985 | US4559909 Valve mechanism for an internal combustion engine |
| 12/03/1985 | US4556026 Multiple-displacement engine |
| 12/03/1985 | US4556025 Engine valve mechanism having valve disabling device |
| 12/03/1985 | CA1197424A1 Compression brake system |
| 11/12/1985 | US4552112 Valve timing control for internal combustion engines |
| 11/06/1985 | EP0160245A1 Method for changing the direction of rotation of an internal-combustion engine and engine using this method |
| 10/15/1985 | US4546735 Valve actuator |
| 10/15/1985 | US4546734 Hydraulic valve lifter for variable displacement engine |
| 10/09/1985 | EP0156996A1 Engine valve timing control system |
| 10/08/1985 | US4545342 Method and apparatus for the control of valve operations in internal combustion engine |
| 10/02/1985 | EP0156664A1 Method of starting and running at a low load a diesel engine, and diesel engine applying this method |
| 10/01/1985 | US4543927 Engine control circuit |
| 09/18/1985 | EP0155261A2 Valve timing gear for an internal-combustion engine |
| 09/17/1985 | US4541372 Engine with load dependent variably operable intake and exhaust valving |
| 09/10/1985 | US4539951 Variable valve timing mechanism |
| 09/10/1985 | US4539946 Method of controlling the combustion cycle in a combustion engine |
| 09/03/1985 | US4538569 Compression control system for an internal combustion engine and control method therefor |
| 08/29/1985 | WO1985003737A1 Poppet valve drive |
| 08/27/1985 | US4537165 Valve actuating mechanism having stopping function for internal combustion engines |
| 08/27/1985 | US4537164 For an internal combustion engine |
| 08/20/1985 | US4535733 Variable valve timing apparatus |
| 08/13/1985 | US4534323 Valve operation changing system of internal combustion engine |
| 07/23/1985 | US4530318 Intake and exhaust valve system for internal combustion engine |
| 07/04/1985 | WO1985002893A1 Compression relief |
| 07/02/1985 | US4526142 Variable valve timing arrangement for an internal combustion engine or the like |
| 06/25/1985 | US4524731 Hydraulic valve lifter with continuous void |
| 06/25/1985 | CA1189401A1 Contoured finger follower variable valve timing mechanism |
| 06/18/1985 | USRE31917 Valve timing mechanisms |