| Patents for F02D 13 - Controlling the engine output power by varying inlet or exhaust valve operating characteristics, e.g. timing (11,427) |
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| 07/20/1993 | US5228423 Dual-fuel engine |
| 07/20/1993 | US5228422 Internal combustion engine and a method of operating same |
| 07/15/1993 | DE3943705A1 Pressure charged engine exhaust braking system - increases power supplied to pressure charger to augment braking effect. |
| 07/14/1993 | EP0551207A2 Control system for internal combustion engines |
| 07/08/1993 | WO1993013306A1 Engine for automobile |
| 07/07/1993 | EP0550398A1 Push rods for pistons in compression release engine retarders |
| 07/07/1993 | EP0549997A1 Self-clipping slave piston |
| 07/07/1993 | EP0549996A1 Compression relief engine retarder clip valve |
| 07/06/1993 | US5224460 Method of operating an automotive type internal combustion engine |
| 07/04/1993 | CA2085935A1 Compression relief engine retarder clip valve |
| 07/04/1993 | CA2085934A1 Self-clipping slave piston |
| 07/04/1993 | CA2085870A1 Push rods for pistons in compression release engine retarders |
| 07/04/1993 | CA2085869A1 Master piston for a compression release engine retarder |
| 07/01/1993 | DE4212253C1 Engine valve timing and stroke adjustment - has stroke control piston spring-loaded against valve in cylinder separate from rocker-supporting cylinder |
| 06/30/1993 | CN1021469C Multifunctional semi-rotor internal combustion engine |
| 06/29/1993 | US5222465 Valve timing control system for engine |
| 06/23/1993 | EP0547567A1 Method to control the air-fuel ratio for an internal combustion engine, especially of the piston type |
| 06/23/1993 | EP0547566A1 Method of controlling the air admission in the combustion chamber for an internal combustion engine of a piston type in two phases |
| 06/22/1993 | US5220904 Air-fuel ratio control system for internal combustion engines |
| 06/22/1993 | US5220899 Internal combustion engine with air assist fuel injection control system |
| 06/22/1993 | US5220891 Variable cam engine |
| 06/22/1993 | US5220890 Variable compression device for two cycle diesel engine |
| 06/10/1993 | WO1993011350A1 Internal combustion engine with variable combustion chamber |
| 06/10/1993 | CA2125039A1 Internal combustion engine with variable combustion chamber |
| 06/08/1993 | US5216987 Method and apparatus for optimizing breathing utilizing unit valve actuation |
| 06/01/1993 | US5215061 Control system for internal combustion engines |
| 05/27/1993 | DE4138527A1 IC engine control with equalising leverage - has shaft between swivel lever and tappet for geometric transfer of slide face centre point |
| 05/26/1993 | EP0543679A1 Ignition system for internal combustion engine having at least two spark plugs par cylinder |
| 05/26/1993 | EP0543210A1 Engine comprising a continuous braking device, particularly for an industrial vehicle |
| 05/25/1993 | US5213067 Internal combustion engine |
| 05/19/1993 | EP0542562A1 Ignition timing control system for internal combustion engines |
| 05/18/1993 | US5211147 Reverse stratified, ignition controlled, emissions best timing lean burn engine |
| 05/18/1993 | US5211146 Inlet control mechanism for internal combustion engine |
| 05/11/1993 | US5209202 Method of operating an internal combustion engine |
| 05/11/1993 | US5209201 Internal combustion engine |
| 05/05/1993 | EP0539616A1 Engine brake system for all types of diesel and gasoline engines |
| 04/29/1993 | WO1993008390A1 Total injection type internal combustion engine with exhaust gas heated compressed air |
| 04/27/1993 | US5205152 Engine operation and testing using fully flexible valve and injection events |
| 04/20/1993 | US5203830 Method and apparatus to reduce engine combustion noise utilizing unit valve actuation |
| 04/20/1993 | US5203310 Process for reducing the harmful components in exhaust gas and engine implementing the process |
| 04/13/1993 | US5201296 Control system for an internal combustion engine |
| 04/13/1993 | US5201290 Compression relief engine retarder clip valve |
| 04/08/1993 | DE4232044A1 Mixture control for ic engine with temperature limiting - has proportion of exhaust gases recycled when engine torque is high and with stoichiometric mixture |
| 04/07/1993 | EP0536001A1 Control system for internal combustion engines |
| 04/07/1993 | EP0535122A1 Internal combustion engine and an improved rotary inlet valve for use therewith. |
| 04/06/1993 | US5199403 Air fuel ratio control system for variable valve timing type internal combustion engines |
| 04/02/1993 | CA2052610A1 Electro/hydraulic variable valve timing system |
| 03/24/1993 | EP0533474A2 Method of controlling an internal combustion engine |
| 03/23/1993 | US5195489 Push rods for pistons in compression release engine retarders |
| 03/23/1993 | US5195470 Variable cam engine |
| 03/23/1993 | CA1314774C Pneumatic electronic valve actuator |
| 03/10/1993 | EP0530573A1 Integrated turbine and pump assembly |
| 03/03/1993 | EP0529642A2 Internal combustion engine with air assist fuel injection control system |
| 03/03/1993 | EP0529639A1 Internal combustion engine with supercharger |
| 03/03/1993 | EP0529638A1 Reciprocating engine of a spark ignition type |
| 03/02/1993 | US5190013 Engine intake valve selective deactivation system and method |
| 03/02/1993 | US5190006 Injection arrangement for improving fuel consumption |
| 03/02/1993 | US5189998 Valve mechanism of internal combustion engine |
| 03/02/1993 | US5189997 Internal-combustion engine comprising a rocker lever valve gear |
| 03/02/1993 | US5189996 Two-stroke-cycle engine with variable valve timing |
| 02/24/1993 | CA2072242A1 Integrated turbine and pump assembly |
| 02/23/1993 | US5187935 Engine control device |
| 02/18/1993 | WO1993003268A1 Method of controlling engine |
| 02/18/1993 | DE4216759C1 Reduction of nitrogen oxide(s) in exhaust gases from combustion engine - includes recycling exhaust gas during high load operation |
| 02/16/1993 | US5186141 Engine brake timing control mechanism |
| 02/10/1993 | EP0526591A1 Means for controlling exhaust temperature on a catalytically purified combustion engine. |
| 02/10/1993 | EP0526538A1 Internal combustion engine |
| 02/09/1993 | US5184577 Running state control system for motor vehicle |
| 02/03/1993 | EP0525597A1 Air-fuel ratio control system for variable valve timing type internal combustion engines |
| 02/02/1993 | US5183013 Two-cycle diesel engine |
| 02/02/1993 | US5183011 Method of controlling the supply of fuel in hydrogen-fueled engine |
| 01/27/1993 | EP0524664A2 Valve operating apparatus in an internal combustion engine |
| 01/26/1993 | US5181484 Cam timing control device for automotive engine |
| 01/21/1993 | WO1993001402A1 Multicylinder two stroke cycle engine |
| 01/21/1993 | CA2110581A1 Multicylinder two stroke cycle engine |
| 01/13/1993 | EP0522452A1 Method of load control at a reciprocating piston internal combustion engine and internal combustion engine |
| 01/12/1993 | US5178104 Two cycle diesel engine |
| 01/07/1993 | EP0521412A1 Internal combustion engine with rocker lever valve drive |
| 12/30/1992 | EP0520801A1 Variable valve actuation control system |
| 12/15/1992 | US5170755 Valve opening and closing timing control apparatus |
| 12/08/1992 | US5168851 Variable cam engine power controller |
| 12/08/1992 | US5168848 Engine brake for a multi-cylinder internal combustion engine |
| 11/24/1992 | US5165375 Master piston for a compression release engine retarder |
| 11/19/1992 | EP0513892A2 Method of operating a two-stroke-cycle engine with variable valve timing in a four-strike-cycle mode |
| 11/17/1992 | US5163403 Ignition timing control system for internal combustion engines |
| 11/12/1992 | DE4115008A1 Valve drive for D.O.H.C. IC engine - has switch for selective disengagement of camshaft |
| 11/10/1992 | US5161501 Self-clippping slave piston |
| 11/10/1992 | US5161497 Variable valve timing operated engine |
| 10/28/1992 | EP0510327A2 Timing variation device for multicylinder internal combustion engine |
| 10/25/1992 | WO1992019847A1 Valve control mechanism |
| 10/25/1992 | CA2109102A1 Valve control mechanism |
| 10/21/1992 | EP0509189A1 Multicylinder engine |
| 10/20/1992 | CA1308977C Valve operating device for internal combustion engine |
| 10/14/1992 | EP0508508A1 Air supply system for an engine |
| 10/14/1992 | EP0508159A2 Admission control for internal combustion engines |
| 10/07/1992 | EP0472533A4 Rotary exhaust control valve for two-stroke cycle engines and process for using the same |
| 10/06/1992 | US5152267 Variable cam engine |
| 09/23/1992 | EP0472535A4 Slide exhaust control valve for fuel injected two-stroke cycle engines and process for using same |
| 09/16/1992 | EP0502868A1 Closed loop electric valve control for i.c. engine |
| 09/15/1992 | US5146890 Method and a device for engine braking a four stroke internal combustion engine |