Patents
Sitemap › F02 - Combustion engines; Hot-gas or combustion-product engine plants › F02D - Controlling combustion engines › F02D 13 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing
Patents for F02D 13 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing (11,427)
08/1991
08/07/1991EP0440314A2 Method for variable valve timing for an internal combustion engine
08/06/1991US5036811 Four-stroke internal-combustion engine
08/01/1991DE4028757A1 Two-stroke combustion engine control - using rotary discs adjoining inlet and exhaust ports with phase adjustment by connection to accelerator pedal or electronic circuit
07/1991
07/23/1991US5033290 Method of detecting failure of a valve timing changeover control system of an internal combustion engine
07/23/1991CA1286557C Controlling emissions from two stroke engines
07/16/1991US5031582 Internal combustion engine providing scavenging with combustion chamber volume control
07/03/1991EP0434970A1 Method for the limiting of an engine traction torque
07/02/1991US5027753 Intake system of multi-cylinder internal combustion engine
06/1991
06/26/1991EP0433632A1 Method to control an internal combustion engine without throttle
06/19/1991CN1052358A Closed loop electric valve control for i.c. enging
06/19/1991CN1012913B Scavenge valve for two-cycle engine
06/18/1991US5024191 Control system for a variable valve actuating mechanism of an internal combustion engine
06/13/1991WO1991008384A1 Closed loop electric valve control for i.c. engine
06/11/1991US5022357 Control system for internal combustion engine
06/11/1991US5022353 Variable-cycle engine
06/04/1991US5020487 Internal combustion engine with load-responsive valve control for combustion chamber scavenging
05/1991
05/15/1991EP0427334A1 Two-stroke-cycle engine with variable valve timing
05/10/1991CA2029396A1 Two-stroke-cycle engine with variable valve timing
05/07/1991US5012789 Cold start by-pass valve
05/07/1991US5012778 Externally driven compression release retarder
04/1991
04/25/1991DE3935367A1 Engine brake operating system - increases working gas pressure to increase brake action
04/23/1991US5009203 Control method for valve-timing changeover in engine
04/23/1991US5009201 Two-cycle engine having a direct fuel injection system
04/18/1991WO1991005152A1 Device to reduce gas exchange losses of an internal combustion engine
04/16/1991US5007382 Cycle changeable engine
04/09/1991US5005552 Exhaust gas recirculation system of engine
04/09/1991US5005539 Engine cycle control system
04/03/1991EP0420443A1 Engine valve control during transmission shifts
03/1991
03/19/1991US5000280 Driving wheel slip control system for vehicles
03/19/1991US5000133 Two-cycle heat-insulating engine
03/19/1991US5000131 Exhaust port control valve for two stroke engine
03/12/1991US4998512 Exhaust port control system for two stroke engine
03/05/1991US4996966 Supercharged engine
03/05/1991US4996954 Method for detecting an irregularity in valve-timing changeover in an engine
02/1991
02/26/1991US4995354 Two-cycle engine
02/26/1991US4995351 Valve timing control apparatus for an internal combustion engine
02/26/1991US4995348 Two-stroke internal combustion engines and process for operating said engines
02/20/1991EP0413317A1 Exhaust control valve system for parallel multi-cylinder two-cycle engine
02/20/1991EP0413316A1 Exhaust control valve system for parallel multi-cylinder two-cycle engine
02/19/1991USRE33538 Valve operation control device for internal combustion engines
02/19/1991US4993373 Sealing shroud port timing valve for two cycle engine
02/14/1991DE3926423A1 Four-stroke IC engine - has two inlet valves in combustion chamber, one valve opening briefly during exhaust stroke
02/12/1991US4991551 Apparatus for preventing reverse rotation of an engine
02/07/1991WO1991001435A1 Modular position controller for variable valve timing
01/1991
01/30/1991EP0409996A1 Electromagnetic valve actuating system
01/22/1991US4986225 Intake reservoir system for an engine having a check valve
01/21/1991WO1991001434A1 Autocalibration of camshaft phasing feedback in a variable valve timing system
01/21/1991CA2063815A1 Autocalibration of camshaft phasing feedback in a variable valve timing system
01/20/1991CA2015208A1 Modular position controller
01/15/1991US4984541 Valve stepping drive apparatus
01/09/1991EP0406443A1 Electromagnetic valve actuator
01/08/1991US4982706 Valve control apparatus having a magnet valve for internal combustion engines
01/02/1991EP0406078A1 Two-stroke engine with rotating valves and operation of said engine
01/01/1991US4981123 IC engine of the piston type
01/01/1991US4981119 Method of increasing the exhaust braking power of an internal combustion engine
12/1990
12/27/1990EP0404457A1 Method of detecting failure of a valve timing changeover control system of an internal combustion engine
12/27/1990EP0404341A1 Sealing shroud port timing valve for two-stroke cycle engine
12/20/1990DE4017161A1 Two=stroke engine with reverse scavenging - has exhaust outlet flow controlled according to engine speed and load
12/11/1990US4976228 Valve control system for internal combustion engine
12/04/1990US4974566 Optimal swirl generation by valve control
11/1990
11/29/1990WO1990014513A1 Rotary exhaust control valve for two-stroke cycle engines and process for using the same
11/29/1990WO1990014512A1 Slide exhaust control valve for fuel injected two-stroke cycle engines and process for using same
11/28/1990EP0399829A2 Method of detecting failure of a valve timing changeover control system of an internal combustion engine
11/14/1990EP0397521A1 Engine cycle control system
11/14/1990EP0397361A1 Two-cycle heat-insulating engine
11/14/1990EP0397360A1 Exhaust gas recirculation system of an engine
11/14/1990EP0397359A2 Cycle changeable engine
11/13/1990US4969329 Two cycle engine with exhaust emission control
11/07/1990EP0396325A1 Variable-cycle engine
11/07/1990EP0396262A2 Two cycle engine with exhaust emission control
11/05/1990CA2015916A1 Two cycle engine with exhaust emission control
10/1990
10/31/1990EP0395450A1 Intake/exhaust valve actuator
10/31/1990EP0394492A1 Electromagnetically driven valve controller
10/31/1990EP0245331B1 Two stroke internal combustion engine
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
10/30/1990USRE33411 Valve operating mechanism for internal combustion engine
10/30/1990US4966110 Intake air flow control apparatus of internal-combustion engine
10/30/1990US4966104 Two-stroke engines
10/23/1990US4964375 Valve operating mechanism
10/16/1990US4962732 Valve operating device for internal combustion engine
10/09/1990US4961406 Method and device for optimizing the air-fuel mixture burn rate of internal combustion engines during low speed, light and heavy load operating conditions
10/03/1990EP0390519A1 Electromagnetic force valve driving apparatus
10/03/1990EP0390422A1 Valve stepping drive apparatus
10/02/1990US4960095 Knocking control system for internal combustion engines
10/02/1990US4960094 Knocking control system for internal combustion engines
10/02/1990US4960083 Failsafe method in connection with valve timing-changeover control for internal combustion engines
09/1990
09/25/1990US4958606 Supercharged engine
09/18/1990US4957074 Closed loop electric valve control for I. C. engine
09/12/1990EP0387089A1 Intake system of plural cylinder internal combustion engine
09/11/1990US4955334 Control apparatus for valve driven by electromagnetic force
08/1990
08/29/1990EP0384492A2 Control process for two-stroke internal-combustion engines
08/23/1990DE3937679A1 Outlet control for two=stroke IC engine - has piston shaped control member forming part of outlet channel
08/22/1990EP0382776A1 Exhaust control valve for two-stroke cycle engines and process for using the same.
08/16/1990WO1990009514A1 A method and a device for engine braking a four stroke internal combustion engine
08/16/1990EP0382063A1 2-Cycle multi-cylinder engine
08/08/1990EP0381163A1 2-Cycle engine
08/07/1990US4945870 Vehicle management computer
08/07/1990US4945869 Two cycle crankcase variable inlet timing
08/01/1990EP0379720A1 Method for increasing the brake power of a four-stroke alternating piston-type internal-combustion engine
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