Patents
Sitemap › F01 - Machines or engines in general; Engine plants in general; Steam engines › F01L - Cyclically operating valves for machines or engines › F01L 13 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations
Patents for F01L 13 - Modifications of valve-gear to facilitate reversing, braking, starting, changing compression ratio, or other specific operations (9,664)
12/1989
12/06/1989EP0344780A2 Intake control device for engine
11/1989
11/29/1989EP0343931A1 Mechanism for switching valve operation modes in an internal combustion engine
11/28/1989US4883026 Means for adjusting the timing of a valve
11/23/1989DE3913530A1 Valve actuating device
11/21/1989US4881499 Hydraulic play compensating element
11/15/1989EP0342051A1 Valve operating mechanism for internal combustion engine
11/15/1989EP0342007A1 Device for switching valve operation modes in an internal combustion engine
11/15/1989EP0341440A1 Valve operating device with a magnetic valve for an internal-combustion engine
11/07/1989US4878464 Pneumatic bistable electronic valve actuator
10/1989
10/31/1989US4876995 Valve operation control device for internal combustion engine
10/25/1989EP0338729A1 Method for controlling valve operation in an internal combustion engine
10/18/1989EP0337816A2 Intake manifold for an internal combustion engine
10/18/1989EP0337620A1 Exhaust timing changing system
10/17/1989US4873949 Method of and apparatus for controlling valve operation in an internal combustion engine
10/10/1989US4872428 Improvements in or relating to driving connections between two rotatable bodies
10/10/1989US4872427 Position controller for a rotatable shaft
10/03/1989US4870930 Engine valve control apparatus
10/03/1989US4870872 Cam mechanisms
09/1989
09/26/1989US4869215 Cam mechanisms
09/21/1989DE3807699A1 Adjustable hydraulic valve timing gear
09/12/1989USRE33052 Compression release retarder with valve motion modifier
09/07/1989DE3903474A1 Method for operating an internal combustion engine
09/05/1989US4862842 Arrangements for converting rotary motion into linear motion
08/1989
08/30/1989EP0330638A1 Valve gear for internal combustion engine
08/16/1989EP0328195A2 Pneumatic electronic valve actuator
08/15/1989US4856474 Valve control device
08/08/1989US4854272 Valve operating device for internal combustion engine
08/01/1989CA1258017A1 Engine valve train system
07/1989
07/27/1989WO1989006743A1 Variable timing system for engine valve operating gear
07/27/1989WO1989006742A1 Variable lift valves
07/25/1989US4850311 Three dimensional cam cardanic follower valve lifter
07/19/1989EP0324085A1 Hydraulic lash adjuster
07/18/1989US4848289 Apparatus and method for retarding an engine
07/18/1989US4848285 Valve operating apparatus for an internal combustion engine
07/18/1989US4848284 Valve operating device for multicylinder internal combustion engine
07/05/1989EP0323233A1 Lubricant supplying system for DOHC type multi-cylinder internal combustion engine
07/04/1989US4844023 Valve operating device for internal combustion engine
07/04/1989US4844022 Valve operating apparatus for an internal combustion engine
06/1989
06/27/1989US4841799 Variable ratio lever arm mechanism
06/22/1989DE3741720A1 Lifting valve with valve seat for an engine
06/21/1989EP0320536A1 Engine compression brake
06/21/1989CN1004569B Braking system and method for exhaust engines
06/14/1989EP0319956A1 Valve operating mechanism
06/13/1989US4838516 Compression release retarder with valve motion modifier
06/13/1989US4838114 Arrangements for converting rotary motion to linear motion
06/06/1989US4836162 Engine brake of an internal combustion engine
06/06/1989US4836155 Variable duration valve opening mechanism
05/1989
05/30/1989US4834048 Internal combustion engine having at least two inlet valves per combustion chamber
05/30/1989CA1254804A1 Process and decompression control in internal combustion engine and apparatus therefor
05/24/1989EP0317372A1 Apparatus for controlling valve operation in an internal combustion engine
05/24/1989EP0317371A1 Valve operating device for internal combustion engine
05/24/1989EP0317364A1 Valve operating system for internal combustion engine
05/16/1989US4829949 Valve mechanism for an internal combustion engine
05/09/1989US4827882 Internal regenerative combustion engines with thermal integrated optimized system
05/03/1989EP0313624A1 Improvements in or relating to driving connections between two rotatable bodies.
04/1989
04/19/1989EP0312216A2 Valve operation control system in internal combustion engine
04/18/1989US4821689 Valve drive with a hydraulic transmission and a characteristic variable by means of a link control
04/18/1989CA1252855A1 Engine decompression system
04/12/1989EP0311282A2 Valve mechanisms
04/12/1989EP0311272A1 Variable valve lift/timing mechanism
04/11/1989US4819590 Control valve driving device in an internal combustion engine
03/1989
03/30/1989DE3730001A1 Valve actuating mechanism for an internal combustion engine
03/28/1989US4815423 Method for controlling the working cycle of an internal combustion engine
02/1989
02/21/1989US4805571 Internal combustion engine
02/21/1989US4805566 Arrangement for influencing the control times of valves
02/16/1989DE3726052A1 Valve timing gear for compressors, engines etc.
02/09/1989DE3725448A1 Valve timing gear for varying valve lift and valve opening time
02/08/1989EP0302288A1 Disengageable valve drive means
02/07/1989CA1249753A1 Engine camshaft drive mechanism
01/1989
01/31/1989US4800850 Hydraulic circuit for a valve operating mechanism for an internal combustion engine
01/25/1989EP0300679A1 Valve operating device for internal combustion engine
01/24/1989US4799463 Valve operating mechanism for internal combustion engines
01/04/1989EP0297791A1 Valve operation control device for internal combustion engine
01/03/1989US4794893 Engine valve driving apparatus
01/03/1989US4794892 Hydraulic circuit for valve operation timing changing device for internal combustion engine
12/1988
12/28/1988CA1247483A Compression release engine retarder for multi- cylinder internal combustion engines
12/27/1988US4793347 Exhaust timing control device for two cycle engines
12/27/1988US4793307 Rocker arm decoupler for two-cycle engine retarder
12/22/1988DE3718334A1 Device for varying the valve timing in reciprocating piston engines
12/14/1988EP0294682A1 Rocker arm decoupler
12/13/1988US4790271 Auto-decompression system for engines
11/1988
11/29/1988US4787346 Valve operating apparatus for an internal combustion engine
11/23/1988EP0292185A2 Cam mechanisms
11/23/1988EP0291792A2 Method of feeding a four-stroke reciprocating-piston engine
11/17/1988WO1988008919A1 Improvements in or relating to driving connections between two rotatable bodies
11/17/1988EP0291357A1 Valve operating device of internal combustion engine
11/15/1988US4783966 Multi-staged internal combustion engine
10/1988
10/25/1988US4779589 Control apparatus for intake and exhaust valves of an internal combustion engine
10/18/1988US4777915 Variable lift electromagnetic valve actuator system
10/12/1988EP0286389A2 Means for adjusting the timing of a valve
10/12/1988EP0285877A1 Valve control device
10/04/1988US4774913 Variable valve lift/timing mechanism
09/1988
09/29/1988DE3800347A1 Valve actuating device in an internal combustion engine
09/29/1988DE3709197A1 Device for a cam-controlled reciprocating piston engine
09/27/1988US4773359 Valve control for overhead camshaft engines
09/20/1988US4771742 Method for continuous camlobe phasing
09/13/1988US4770137 Cylinder control device for variable-cylindered engine
09/13/1988US4770060 Apparatus and method for variable valve timing
09/08/1988DE3706187A1 Driving device for a machine part guided in an adjustable, preferably linearly adjustable, manner
09/06/1988US4768475 Valve mechanism for an automotive engine
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