| Patents for F02B 31 - Modifying induction systems for imparting a rotation to the charge in the cylinder (3,175) |
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| 04/27/1994 | EP0594463A1 Spark ignited internal combustion engines |
| 04/27/1994 | EP0594462A1 Spark ignited internal combustion engines |
| 04/26/1994 | US5305720 Internal combustion 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 | EP0592100A1 Fuel supply control device for internal combustion engines |
| 04/12/1994 | US5301636 Valve operating mechanism of internal combustion engine |
| 03/22/1994 | US5295816 Into a combustion zone |
| 03/22/1994 | US5295464 Stratified burning internal combustion engine |
| 03/09/1994 | EP0586123A2 Air intake arrangement for internal combustion engine |
| 01/26/1994 | EP0579860A1 Induction system for an internal combustion engine |
| 01/19/1994 | EP0579218A1 Method for controlling an intake air supply to an internal combustion engine and an intake air control system therefor |
| 12/28/1993 | US5273014 Intake system for engine |
| 12/16/1993 | DE4219236A1 Two=stroke IC engine using Otto or Diesel cycle - has injection valve to inject into cylindrical hot rotating residual gas core |
| 12/08/1993 | EP0573322A1 Intake system for an internal combustion engine |
| 12/07/1993 | US5267543 Dual induction system for internal combustion engine |
| 11/30/1993 | US5265568 Intake system for internal combustion engine |
| 11/18/1993 | DE4216302A1 Insert in intake channel of IC engine - has flow guide surface formed by spiral insert on ring collar between cylinder head housing and valve seat ring |
| 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 |
| 10/26/1993 | US5255649 Intake air control system for the engine |
| 10/26/1993 | US5255648 Intake air control device for an internal combustion engine |
| 10/07/1993 | DE4210764A1 IC engine with piston slide valve - has gas exchange channel on intake valve with piston slide-controlled valve opening |
| 09/30/1993 | DE4209684A1 Flow control device for gases through engine cylinder head - uses gas ducts in walls of manifold to reduce swirl effects and increase flow-rates |
| 09/21/1993 | US5245964 Intake port structure for internal combustion engine |
| 09/01/1993 | EP0558081A1 Stratified burning internal combustion engine |
| 09/01/1993 | EP0558080A1 Internal combustion engine |
| 09/01/1993 | EP0558073A1 Stratified burning international combustion engine |
| 09/01/1993 | EP0558072A1 Internal combustion engine |
| 08/31/1993 | US5239960 Engine induction system provided with a mechanical supercharger |
| 08/26/1993 | DE4205237A1 Intake duct in IC engine cylinder head - has adjustable throttle flap, for throttled cylinder filling at part load, and max. filling at full load |
| 08/24/1993 | US5237974 Triple-intake-valve internal combustion engine |
| 08/05/1993 | DE4222797A1 Multicylinder combustion engine with exhaust gas recycling - has dual-inlet cylinders arranged in two gps. with one or more injectors downstream from flaps |
| 08/03/1993 | US5231964 Intake air control device for an internal combustion engine |
| 06/22/1993 | US5220899 Internal combustion engine with air assist fuel injection control system |
| 06/15/1993 | US5218937 Diesel engine |
| 06/09/1993 | EP0544978A1 An air intake system for a fuel-injection engine |
| 05/18/1993 | US5211147 Reverse stratified, ignition controlled, emissions best timing lean burn engine |
| 05/18/1993 | US5211010 Exhaust gas purification system for a diesel engine |
| 05/13/1993 | WO1993009384A1 Asymmetric whirl combustion |
| 05/11/1993 | US5209656 Combustion system for high velocity gas injection |
| 05/11/1993 | US5209201 Internal combustion engine |
| 04/21/1993 | EP0537745A1 Intake system for engine |
| 04/01/1993 | WO1993006348A1 Two stroke internal combustion engine |
| 03/23/1993 | US5195488 Internal combustion engine with unique swirl |
| 03/17/1993 | EP0531541A1 Intake port structure for internal combustion engine |
| 03/03/1993 | EP0529676A1 Induction system for an internal combustion engine |
| 03/03/1993 | EP0529667A2 Method of high velocity gas injection |
| 03/03/1993 | EP0529642A2 Internal combustion engine with air assist fuel injection control system |
| 03/03/1993 | EP0529639A1 Internal combustion engine with supercharger |
| 02/16/1993 | US5186140 Air intake system for fuel injection type four cycle engine |
| 02/16/1993 | US5186139 Diesel engine |
| 02/10/1993 | EP0527122A1 Multi-cylinder internal combustion engine with internal mixture forming |
| 12/30/1992 | EP0520518A1 Induction system for an internal combustion engine |
| 12/29/1992 | US5174260 Intake port structure for multi valve engine |
| 12/22/1992 | US5172674 Internal combustion engine |
| 12/08/1992 | US5168954 Apparatus for controllably sucking intake air into each cylinder of internal combustion engine and method for controlling intake air quantity thereof with improved responsive characteristic |
| 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 |
| 12/01/1992 | US5167211 Air intake system for a fuel-injection engine |
| 11/25/1992 | EP0514854A2 An intake air control device for an internal combustion engine |
| 11/24/1992 | US5165374 Inlet arrangement for an internal combustion engine |
| 11/19/1992 | EP0514236A1 Method for introducing additional gas for an internal combustion engine |
| 11/19/1992 | EP0396676B1 Internal combustion engine |
| 10/15/1992 | WO1992017701A1 Intake port structure of internal combustion engine |
| 09/29/1992 | US5150677 Direct injection diesel engine |
| 09/17/1992 | DE4206231A1 Inlet valve with valve or valve seat vortex-creating profiles - has profiles formed flat to reduce flow resistance with valve fully open, and has valve opening after top dead centre |
| 09/03/1992 | WO1992014923A1 Internal combustion engines |
| 09/01/1992 | US5143036 Multi-valve internal combustion engine |
| 08/26/1992 | EP0500124A1 Induction system for an internal combustion engine |
| 08/26/1992 | EP0500123A1 Induction system for an internal combustion engine |
| 08/19/1992 | EP0499268A1 Multiple valve internal combustion engine |
| 08/18/1992 | US5138989 Internal combustion engine with two or more inlet valves per engine cylinder |
| 08/18/1992 | US5138988 Intake duct |
| 07/29/1992 | EP0321508B1 Internal combustion engine with exhaust return system, in particular otto engine |
| 07/22/1992 | CN1017540B System of dual-duct air inlet for ic. engines |
| 07/01/1992 | EP0492989A1 Exhaust gas purification system for a diesel engine |
| 07/01/1992 | EP0235288B1 Variable swirl suction device for engines |
| 06/16/1992 | US5121716 Fuel injection type internal combustion engine |
| 06/09/1992 | US5119785 Intake apparatus for multi-valve engine |
| 05/06/1992 | EP0214251B1 Intake spiral and/or turbulence device for combustion engines |
| 04/15/1992 | EP0480607A1 Charge intake system for an internal combustion engine |
| 04/13/1992 | CA2050218A1 Charge intake system for a multi-intake valve per cylinder engine |
| 04/07/1992 | US5101778 SOHC type internal combustion engine |
| 04/02/1992 | WO1992005361A1 Engine intake system |
| 03/31/1992 | US5099808 Direct injection diesel engine induction system having vortical flow inducing induction valve |
| 03/04/1992 | EP0396557B1 Internal combustion engines |
| 02/19/1992 | EP0471624A2 Direct injection diesel engine |
| 02/12/1992 | EP0470869A1 Internal combustion engine |
| 01/14/1992 | US5080081 Four-cycle heat insulating engine |
| 12/12/1991 | DE4018065A1 Diesel IC engine - has three valves per cylinder with two inlet valves in diametrically opposite positions |
| 12/03/1991 | US5069175 Charge intake system for a multi-intake valve per cylinder engine |
| 11/27/1991 | EP0458026A1 Valve seat ring for an internal combustion engine |
| 11/12/1991 | US5063881 Ceramic engine |
| 10/29/1991 | US5060616 Intake system for multiple-valve engine |
| 10/24/1991 | DE4027963C1 IC piston engine with several inlet valves - has exhaust gas return and fresh gas turbulence system as passages eccentrically opening into inlet duct(s) |
| 10/16/1991 | EP0451783A2 Apparatus for controllably sucking intake air into each cylinder of internal combustion engine and method for controlling intake air quantity thereof with improved responsive characteristics |
| 10/15/1991 | US5056486 Combustion engine |
| 10/15/1991 | US5056474 Internal combustion engine having multiple carburetors and a starting mixture |
| 10/15/1991 | US5056309 Internal combustion engine, particularly otto engine |
| 10/03/1991 | WO1991014858A1 An inlet arrangement for an internal combustion engine |
| 10/02/1991 | EP0449240A1 Multi-valve internal combustion engine |