| Patents for F02D 21 - Controlling engines characterised by their being supplied with non-airborne oxygen or other non-fuel gas (5,404) |
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| 08/22/1995 | US5443547 Exhaust gas recirculation system |
| 08/01/1995 | USH1466 Oxygen injection system |
| 07/19/1995 | CN1105420A Apparatus for reducing dust of smoke from diesel engine |
| 07/18/1995 | US5433180 Internal combustion engine with supercharger |
| 06/28/1995 | EP0659994A2 Closed-loop control of a diesel engine |
| 06/27/1995 | US5426938 Control system for internal combustion engines |
| 06/27/1995 | US5426934 Engine and emission monitoring and control system utilizing gas sensors |
| 06/22/1995 | DE4444972A1 Electronic control system for high economy ic. engine |
| 05/11/1995 | DE4338115A1 Engine-braking device for an internal combustion engine |
| 04/19/1995 | EP0648925A1 Exhaust gas recirculation control system for internal combustion engines |
| 04/05/1995 | EP0646709A2 Air-fuel ratio control system for internal combustion engines |
| 03/22/1995 | EP0643804A1 Method and apparatus to reduce engine combustion noise utilizing unit valve actuation |
| 03/08/1995 | EP0641925A2 Smoke reducing device and method for diesel engine |
| 03/02/1995 | DE4337313C1 Device for determining a gas mass throughput of an internal combustion engine |
| 02/23/1995 | DE4426788A1 Method for taking into account the actual degree of conversion of an exhaust emission control device |
| 02/21/1995 | US5390649 Method for controlling an internal combustion engine operating with exhaust gas recirculation |
| 02/02/1995 | DE4426467A1 Device and method for driving a stepping motor |
| 01/25/1995 | EP0635629A1 Exhaust gas recycling system diagnose method for a combustion engine |
| 01/17/1995 | US5383126 Control system for internal combustion engines with exhaust gas recirculation systems |
| 01/12/1995 | DE4322319A1 Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine Method and apparatus for controlling an internal combustion engine |
| 01/12/1995 | DE4322270A1 Verfahren und Vorrichtung zur Steuerung einer Brennkraftmaschine Method and apparatus for controlling an internal combustion engine |
| 01/10/1995 | US5379743 Spark ignited internal combustion engines |
| 01/05/1995 | WO1995000753A1 Method and device for determining the rate of flow of a gas through a valve in an internal-combustion engine |
| 01/03/1995 | US5377651 Closed-loop control of a diesel engine |
| 12/08/1994 | WO1994028299A1 Exhaust gas recirculation in two stroke internal combustion engines |
| 12/08/1994 | CA2162037A1 Exhaust gas recirculation in two stroke internal combustion engines |
| 12/07/1994 | EP0627548A1 An exhaust gas purification device for an engine |
| 11/08/1994 | US5361745 Combustion state control apparatus for internal combustion engine |
| 11/01/1994 | US5359975 Control system for internal combustion engine |
| 10/25/1994 | US5357749 Apparatus for controlling exhaust concentration |
| 10/19/1994 | EP0620364A2 Fuel-injection control device for a diesel engine |
| 09/27/1994 | US5349936 Method of diagnosing exhaust gas recirculation control system of internal combustion engine and apparatus for carrying out the same |
| 09/06/1994 | US5343847 Electronic gaseous fuel injection system |
| 08/18/1994 | DE4402850A1 System for monitoring and controlling internal combustion engines and their exhaust gas emissions, using gas sensors |
| 08/04/1994 | DE4303332A1 Vehicle fuel-injected IC engine design |
| 07/21/1994 | WO1994016207A1 Exhaust gas recirculation in a two stroke engine |
| 07/21/1994 | CA2151594A1 Exhaust gas recirculation in a two stroke engine |
| 07/19/1994 | US5331560 Apparatus and method for self diagnosing engine component controlling systems according to predetermined levels of priority |
| 07/14/1994 | DE4300337A1 Residual gas regulation in IC engines |
| 07/07/1994 | DE4300014A1 Kraftstoffeinspritzpumpe für Brennkraftmaschinen Fuel injection pump for internal combustion engines |
| 07/05/1994 | US5325828 Air intake arrangement for internal combustion engine |
| 06/28/1994 | US5323748 Adaptive dilution control system for increasing engine efficiencies and reducing emissions |
| 05/10/1994 | US5309886 Supercharged internal combustion engine |
| 04/27/1994 | EP0594463A1 Spark ignited internal combustion engines |
| 04/27/1994 | EP0594462A1 Spark ignited internal combustion engines |
| 04/19/1994 | US5303686 Method of purifying exhaust gases of an Otto-cycle engine |
| 04/14/1994 | DE4333424A1 Diesel engine combustion regulator with engine operating condition detectors - has first units for relative redn. of combustion temp. corresp. to detected engine operating conditions and second units for lengthening time of ignition retardation |
| 04/13/1994 | EP0591744A1 Control system for internal combustion engines |
| 03/09/1994 | EP0586123A2 Air intake arrangement for internal combustion engine |
| 02/17/1994 | WO1994003717A1 Dilution controlled lean burn system |
| 02/17/1994 | CA2142199A1 Dilution controlled lean burn system |
| 02/10/1994 | DE4326351A1 Fault diagnosis of IC engine exhaust gas recirculation system - detecting pressure change when control valve is operated, and checking whether cooling water temp., air intake temp. or engine oil temp. are above reference for correct operation of sensor |
| 01/05/1994 | DE4320880A1 Controlled air supply to catalyser in vehicle exhaust pipe - has heated and pumped airflow with control valve to restrict airflow during start-up |
| 12/21/1993 | US5271370 Emulsion fuel engine |
| 12/15/1993 | CN1079533A Method and apparatus to reduce engine combustion noise utilizing unit valve actuation |
| 12/09/1993 | WO1993024749A1 Method and apparatus to reduce engine combustion noise utilizing unit valve actuation |
| 12/08/1993 | EP0572707A1 Method of control of internal combustion engine with exhaust gas recirculation |
| 11/30/1993 | US5265578 Device for quantitatively regulating the supplying of burned gases into the combustion chamber of an internal combustion engine |
| 11/11/1993 | WO1993022549A1 Feeding method for compression ignition internal combustion engines |
| 11/11/1993 | CA2110803A1 Induction method for a compression-ignition internal combustion engine |
| 11/09/1993 | US5259357 Ignition system for internal combustion engine |
| 10/12/1993 | US5251599 Internal combustion engine control device having exhaust gas recycle system |
| 10/12/1993 | US5251564 Combustion box exhaust filtration system and method |
| 09/01/1993 | EP0558358A1 Exhaust recirculation device for a compression ignition engine driven by the charge lever of the engine |
| 08/24/1993 | US5237973 Four-stroke cycle engine |
| 07/15/1993 | DE3943705A1 Pressure charged engine exhaust braking system - increases power supplied to pressure charger to augment braking effect. |
| 07/15/1993 | DE3448436C2 Exhaust gas recycling appts. for diesel engine |
| 06/15/1993 | US5218937 Diesel engine |
| 05/26/1993 | EP0543679A1 Ignition system for internal combustion engine having at least two spark plugs par cylinder |
| 05/26/1993 | EP0543433A1 Method and apparatus for controlling the air/fuel ratio in a diesel engine |
| 05/25/1993 | US5213087 Device for supplying combusted gases to the combustion chamber of an internal combustion engine at a controlled rate |
| 05/19/1993 | EP0542264A1 Four-stroke cycle engine |
| 05/13/1993 | DE4238068A1 Diesel engine exhaust gas feedback control - regulates flow vol. through exhaust gas feedback channel dependent on press. in exhaust gas line containing particle filter |
| 05/11/1993 | US5209214 Air fuel ratio control apparatus for engine |
| 04/28/1993 | EP0539241A1 Control system for internal combustion engines with gas recirculation systems |
| 04/27/1993 | US5205265 Exhaust gas recirculation system |
| 04/27/1993 | US5205260 Method for detecting cylinder air amount introduced into cylinder of internal combustion engine with exhaust gas recirculation system and for controlling fuel injection |
| 04/22/1993 | DE4234841A1 Exhaust gas feedback control for diesel engine - controls throttle to allow regeneration of particle filter in exhaust line |
| 04/20/1993 | US5203830 Method and apparatus to reduce engine combustion noise utilizing unit valve actuation |
| 04/20/1993 | US5203312 Exhaust gas recirculation system for internal combustion engine |
| 04/20/1993 | US5203311 Exhaust gas recirculation system for an internal combustion engine |
| 04/20/1993 | US5203310 Process for reducing the harmful components in exhaust gas and engine implementing the process |
| 04/15/1993 | DE4133856A1 Diesel engine fuel injection control system - uses pressure sensor signal for detecting beginning and duration of fuel injection interval |
| 04/13/1993 | US5201303 Egr control device for an engine |
| 04/13/1993 | US5201300 Direct injection diesel engine |
| 04/13/1993 | US5201173 Catalyst temperature control system for internal combustion engines |
| 03/10/1993 | EP0531277A2 Internal combustion engine having an inlet and outlet system, a turbocharger and a pressure accumulator |
| 03/03/1993 | EP0529639A1 Internal combustion engine with supercharger |
| 03/03/1993 | EP0383897B1 Closed cycle internal combustion engine |
| 02/23/1993 | US5188087 Method for controlling an exhaust gas recirculation system of a flexible fuel vehicle 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 | US5186139 Diesel engine |
| 02/02/1993 | US5183020 Ignition timing control apparatus for engine |
| 12/22/1992 | US5172674 Internal combustion engine |
| 12/22/1992 | US5172550 Zeolite catalyst capable of reducing nitrogen oxides under oxidizing gas conditions |
| 12/10/1992 | DE4142647C1 Controlling return of exhaust gas of IC engine - operating control valve from setting signals dependent on working parameter(s) after delay from start=up time |
| 12/03/1992 | DE4215942A1 Exhaust gas concn. monitor used in IC engine catalytic purifier - using modified zeolite catalyst to reduce nitrogen oxide cpds. for max. efficiency |
| 11/12/1992 | DE4214880A1 Diesel engine exhaust gas feedback system - corrects calculated exhaust gas feedback ratio for detected turbocharger compressor pressure |
| 10/20/1992 | US5157613 Diagnostic method for an internal combustion engine |
| 10/20/1992 | US5156126 Combustion control device for internal combustion engines |