| Patents for F02B 27 - Use of kinetic or wave energy of charge in induction systems, or of combustion residues in exhaust systems, for improving quantity of charge or for increasing removal of combustion residues (3,152) |
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| 09/19/1991 | DE4008610A1 IC engine with three inlet valves per cylinder - has throttle valves to vary flow through two inlet valves |
| 09/18/1991 | EP0338049B1 Engine intake system |
| 09/17/1991 | US5048471 Intake system for automotive engine |
| 09/17/1991 | US5048470 Electronically tuned intake manifold |
| 09/17/1991 | US5048469 Internal combustion engine inlet manifold |
| 09/05/1991 | WO1991013243A1 Active control of machine performance |
| 09/03/1991 | US5044159 Exhaust system for two-stroke cycle engines |
| 08/20/1991 | US5040495 Suction apparatus for engine |
| 08/01/1991 | DE3929533A1 Piston engine operating method - has silencer chamber containing overlapping pipes forming heat accumulator to maintain exhaust temperature |
| 07/25/1991 | DE4001439A1 Piston IC engine air intake system - has flat manifolds close together one above other running along banks |
| 07/25/1991 | DE3940194A1 Piston IC engine operating system - uses internal ribs in nozzle and pipe downstream |
| 07/23/1991 | US5033417 Method for operating a spark-ignition internal combustion engine of a vehicle and a spark-ignition internal combustion engine of a vehicle operating according to this method |
| 07/23/1991 | US5033268 Intake system for turbocharged engine |
| 07/16/1991 | WO1991010817A1 Exhaust system for internal combustion engines |
| 07/16/1991 | US5031598 Intake system for multi-cylinder engine with supercharger |
| 07/16/1991 | CA2042380A1 Exhaust system for internal combustion engines |
| 07/16/1991 | CA1286170C Selectively tuned intake manifold |
| 07/02/1991 | US5027769 Throttle valve control apparatus |
| 07/02/1991 | US5027753 Intake system of multi-cylinder internal combustion engine |
| 06/26/1991 | EP0433380A1 Manifold tuning. |
| 06/19/1991 | EP0432919A1 An internal combustion engine inlet manifold |
| 06/13/1991 | DE3940486A1 Resonance air intake system for IC engine - incorporates pipes to vary resonant frequency of system |
| 05/29/1991 | DE3926011A1 Naturally aspirated piston engine - has discrete after-explosion section within silencer |
| 05/29/1991 | DE3923644A1 Naturally aspirated piston engine - incorporates special intake nozzle system to reduce pollutant emission |
| 05/28/1991 | US5018485 Intake system for automative engine |
| 05/28/1991 | US5018349 Internal combustion engine |
| 05/21/1991 | US5016729 Exhaust system for combustion engine |
| 05/21/1991 | US5016579 Intake system for V type engine |
| 05/16/1991 | DE3937604A1 Reciprocating piston IC engine - has silencer with clutch and thrust nozzles for reduced pollution |
| 05/07/1991 | US5012771 Intake system for multi-cylinder engine |
| 05/07/1991 | US5012648 Exhaust system for two-stroke engine |
| 05/07/1991 | US5012642 Exhaust system for two-stroke cycle internal combustion engines |
| 05/07/1991 | CA2028498A1 Integrated induction system |
| 05/02/1991 | DE4031886A1 Intake tube for IC engine - has intake funnel and diffuser |
| 04/30/1991 | US5010731 Exhausting apparatus of four-cycle four-cylinder engine |
| 04/24/1991 | EP0423607A1 Intake manifold |
| 04/23/1991 | US5009200 Intake manifold assembly for a multicylinder internal combustion engine |
| 04/23/1991 | US5009199 Intake reservoir for an engine having a check valve |
| 04/18/1991 | DE4032727A1 Induction system with flap multicylinder combustion engine - provides speed selection by adjustment of phase of resonant oscillations of air intake into group cylinders |
| 04/16/1991 | US5007386 Intake system for automotive engine |
| 04/10/1991 | EP0421116A1 Air intake system for a combustion engine |
| 04/09/1991 | US5005553 Internal combustion |
| 04/09/1991 | US5005536 Engine induction system |
| 04/09/1991 | US5005534 Intake system for automotive engine |
| 04/09/1991 | US5005533 Two cycle engine with fuel injector |
| 04/09/1991 | US5005532 Integrated tuned induction system |
| 04/02/1991 | US5003933 Integrated induction system |
| 04/02/1991 | US5003932 Intake manifold |
| 04/02/1991 | CA1282292C Bi frequency tuning system comprising side branches |
| 03/21/1991 | DE3921106A1 Operating normally aspirated IC engine - uses air suction manifold to generate accelerating air vol. upstream of fuel mixing zone |
| 03/19/1991 | US5000130 Intake system for multi cylinder engine |
| 03/19/1991 | US5000129 V-type engine |
| 03/19/1991 | US4999999 Internal combustion engine |
| 03/13/1991 | EP0416655A1 Intake manifold |
| 03/13/1991 | EP0416592A2 Intake system for multiple-cylinder engine |
| 03/12/1991 | US4998517 Heat insulating engine |
| 03/12/1991 | CA1281293C High performance exhaust system for internal combustion engine |
| 03/12/1991 | CA1281292C High performance exhaust system for internal combustion engine |
| 02/20/1991 | EP0413213A1 V-type internal combustion engine |
| 02/05/1991 | US4989553 Air intake device of engine |
| 01/31/1991 | DE4011139A1 After chamber inlet control for two=stroke engine - uses slotted control disc to influence mixt. formation |
| 01/23/1991 | EP0408880A1 An air intake device for an internal combustion engine |
| 01/16/1991 | CN1011257B Reciprocating piston-type internal combustion engine with resonance charging |
| 01/15/1991 | CA1278963C Intake manifold assembly for engines |
| 01/10/1991 | WO1991000419A1 Suction pipe arrangement for a multicylinder internal combustion engine with two banks of cylinders in v formation |
| 01/03/1991 | DE3916429A1 IC engine exhaust system - incorporates Helmholtz resonator to generate pressure wave to increase power |
| 01/02/1991 | EP0405612A1 Intake system for internal combustion engine |
| 01/01/1991 | US4981123 IC engine of the piston type |
| 01/01/1991 | US4981115 Intake system for V-type engine |
| 12/27/1990 | EP0404073A1 Control system for internal combustion engine with turbo supercharger |
| 12/18/1990 | US4977866 Internal combustion engine |
| 12/18/1990 | US4977865 Intake system for V-type engine |
| 12/12/1990 | EP0402091A1 A four-cycle twelve cylinder engine |
| 12/05/1990 | EP0401196A2 Exhaust system for two-cycle internal combustion engines |
| 12/05/1990 | EP0400952A1 Intake device for multi-cylinder internal combustion engine |
| 12/04/1990 | US4974568 Resonance system with variable geometry for the fresh-gas conduit for internal combustion engines. |
| 11/20/1990 | US4970994 Intake manifold for V-type internal combustion engine |
| 11/08/1990 | DE3914871A1 Exhaust manifold for IC engine - incorporates coaxial pipe for air to cool exhaust gases |
| 10/24/1990 | EP0393249A1 Air intake system for a multicylinder combustion engine |
| 10/16/1990 | US4962735 Intake system for multi-cylinder internal combustion engines |
| 10/04/1990 | DE3910386A1 Internal combustion engine with exhaust turbocharging |
| 10/03/1990 | EP0389834A1 Arrangement of intake conduits for a multi-cylinder combustion engine |
| 09/27/1990 | DE3926921A1 Auspuffanlage fuer eine brennkraftmaschine Exhaust system for an internal combustion engine |
| 09/26/1990 | EP0389466A1 Exhaust system for two-stroke engines |
| 09/26/1990 | EP0389010A1 Feed device for an internal combustion engine |
| 09/25/1990 | US4958614 Feed device for an internal combustion engine |
| 09/18/1990 | US4957071 Intake system for V-type internal combustion engine |
| 09/12/1990 | EP0387089A1 Intake system of plural cylinder internal combustion engine |
| 09/12/1990 | EP0385997A1 Exhaust system for a combustion engine |
| 09/07/1990 | WO1990010144A1 One-piece wave deflector for i.c. engine intake system |
| 09/04/1990 | US4953352 Exhaust system |
| 08/29/1990 | EP0384359A2 Intergrated tuned induction system |
| 08/22/1990 | CA2008927A1 Integrated tuned induction system |
| 08/21/1990 | US4949681 Method for postcharging an IC engine of the piston type and an apparatus for performing the method |
| 08/16/1990 | EP0382596A1 Intake device for an internal-combustion engine |
| 08/14/1990 | US4947645 Exhaust efficiency increasing apparatus |
| 08/07/1990 | US4945865 For providing air to the cylinders of an engine |
| 07/25/1990 | EP0379476A2 Intake system for multiple cylinder combustion engines |
| 07/20/1990 | CA2007972A1 Intake system for multi-cylinder internal combustion engines |
| 07/17/1990 | US4941319 Engine control device |