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)
07/1990
07/31/1990US4944255 Two-stroke engine with pneumatic injection and flowrate restriction at the exhaust
07/31/1990CA1272086A1 Electromagnetically-actuated positioning system
07/24/1990US4942851 Electromagnetic valve control system
07/17/1990US4941441 Engine brake system of a two-cycle engine for a motor vehicle
07/17/1990US4941319 Engine control device
07/17/1990CA1271675A1 Engine retarding method and apparatus
07/12/1990WO1990007637A1 Electromagnetic valve actuator
07/12/1990WO1990007635A1 Electromagnetic valve actuator
07/04/1990EP0376716A1 Control apparatus for valve driven by electromagnetic force
07/04/1990EP0376714A2 Control system for internal combustion engine
07/04/1990EP0376703A2 Engine control system
07/03/1990US4938188 Engine control apparatus
07/03/1990US4938187 Fuel control apparatus for engine
06/1990
06/21/1990DE3842267A1 Variable valve overlap for four-stroke engines by means of planetary gearing with adjustment
06/21/1990DE3842251A1 Variable valve overlap for four-stroke engines by means of intermediate gearing with adjustment
06/19/1990US4934348 Valve operation control system of internal combustion engine
06/12/1990US4933862 Engine control apparatus
06/05/1990US4930315 Turbo-charger engine system
06/05/1990CA1269901A1 Process and system for compression release engine retarding
05/1990
05/31/1990DE3839451A1 Multi cylinder internal combustion engine
05/30/1990EP0370218A1 Four-stroke internal-combustion engine
05/29/1990US4928640 Autocalibration of camshaft phasing feedback in a variable valve timing system
05/22/1990US4926823 Method of controlling an air/fuel ratio or an internal combustion engine
05/16/1990EP0368675A1 Electromagnetic valve control system
05/15/1990US4924819 Rotary exhaust control valve for two-stroke cycle engines and process for using the same
05/09/1990EP0367553A1 Valve control system for internal combustion engine
05/09/1990EP0367552A1 Valve control system for internal combustion engine
05/09/1990EP0367532A1 Intake air flow control apparatus of internal combustion engine
05/09/1990EP0367448A1 Valve control system for internal combustion engine
05/09/1990EP0367150A2 Intake system for an internal combustion engine with supercharger
05/09/1990EP0366712A1 Exhaust valve throttling mechanism for two-stroke engine
05/03/1990WO1990004705A1 Electromagnetically driven valve controller
05/02/1990CN1041813A Multifunctional semi-rotor internal combustion engine
05/01/1990US4920932 Relating to controlling emissions from two stroke engines
05/01/1990US4920931 Two cycle engine with vaned diffusing exhaust port
04/1990
04/19/1990DE3933105A1 Two=stroke IC engine with charge change control - has passage with piston adjustable cross=section, connected to top of combustion chamber for charge change
04/19/1990DE3835333A1 Concept for the variable valve timing on the basis of camshaft phase shift
04/18/1990EP0364081A1 Failsafe method in connection with valve timing-changeover control for internal combustion engines
04/17/1990US4917066 Swing beam internal-combustion engines
04/17/1990US4917058 Method of reducing pumping losses and improving brake specific fuel consumption for an internal combustion engine
04/17/1990US4917057 Control method for valve-timing changeover in engine
04/11/1990EP0362774A1 An apparatus for preventing reverse rotation of an engine
03/1990
03/27/1990US4911124 Engines for use with gaseous fuels
03/27/1990US4911115 Slide exhaust control valve for fuel injected two-stroke cycle engines and process for using same
03/21/1990EP0359363A1 Control method for valve-timing changeover in engine
03/20/1990US4909194 In an internal combustion engine
03/20/1990US4909193 Exhaust control valve for fuel injected two-stroke cycle engines and process for using same
02/1990
02/27/1990US4903647 Exhaust timing control apparatus
02/13/1990US4899701 Valve operation control device for internal combustion engine
02/08/1990DE3821937A1 Internal combustion engine with valve timing gear
02/08/1990DE3821935A1 Internal combustion engine with valve timing gear
02/07/1990EP0353863A1 Control method for valve-timing changeover in engine
02/07/1990EP0353862A1 Irregularity-detecting method for variable valve-timing type engine
01/1990
01/31/1990EP0352861A2 Vehicle management computer
01/18/1990DE3824133A1 Method for the operation of an internal combustion engine
01/16/1990US4893698 Exhaust brake unit equipped with a pair of swing flap valves
01/09/1990US4892067 Valve control system for engines
01/03/1990EP0349149A2 Two-stroke engines
01/03/1990EP0348924A2 Valve device
01/03/1990CN1038497A Rocker arm decoupler for two-cycle engine retarder
12/1989
12/20/1989EP0347211A1 Valve operation control system of internal combustion engine
12/20/1989CN2049681U Gesoline economizer for depressing and sliding of vehicle
12/19/1989US4887561 Method of controlling valve operation in an internal combustion engine
11/1989
11/23/1989EP0342893A1 Internal combustion engine
11/21/1989US4881499 Hydraulic play compensating element
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
10/24/1989US4875455 Automobile exhaust gas recirculating system
10/18/1989EP0337620A1 Exhaust timing changing system
10/11/1989CN2045783U Cylinder-changing device for engine
09/1989
09/26/1989US4869214 Valve operating mechanism for internal combustion engine
09/21/1989DE3815067C1 Method for balancing out the torsional vibrations of a vehicle drive train
09/20/1989CN2044646U Device for auto-controlling changing cylinder of engine and saving oil
09/07/1989DE3903474A1 Method for operating an internal combustion engine
08/1989
08/16/1989EP0328195A2 Pneumatic electronic valve actuator
08/16/1989EP0322407A4 Reciprocatory machines.
08/15/1989US4856474 Valve control device
08/15/1989US4856465 Multidependent valve timing overlap control for the cylinders of an internal combustion engine
08/01/1989CA1258017A1 Engine valve train system
07/1989
07/26/1989EP0325162A1 Power control process for an internal-combustion piston engine with controlled cylinder charge
07/19/1989EP0324085A1 Hydraulic lash adjuster
07/19/1989CN2041362U Tappet of stop valve for gasoline engine of automobile
07/05/1989EP0322407A1 Reciprocatory machines.
06/1989
06/14/1989EP0319956A1 Valve operating mechanism
06/06/1989US4836162 Engine brake of an internal combustion engine
05/1989
05/24/1989CN1033091A Method of controlling closing movement of hydraulically activated exhaust valve in marine diesel engine, and exhaust valve for use in this method
05/16/1989US4829946 Exhaust control valve for two-stroke cycle engines and process for using the same
05/16/1989US4829945 Exhaust timing control device for two-cycle engines
05/09/1989US4827880 Pulsation controller in the intake/exhaust systems of internal combustion engines
04/1989
04/18/1989US4821695 Swing beam internal combustion engines
04/18/1989US4821689 Valve drive with a hydraulic transmission and a characteristic variable by means of a link control
04/12/1989EP0311499A1 Two-stroke engine with pneumatic injection and exhaust flow throttle
04/11/1989US4819590 Control valve driving device in an internal combustion engine
04/05/1989EP0310441A2 Engine control device
04/04/1989US4817386 Method for the supply of combustion air to the combustion chamber of 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
03/23/1989WO1989002518A1 Exhaust control valve for two-stroke cycle engines and process for using the same
02/1989
02/28/1989US4807571 Exhaust timing control apparatus
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