| Patents for F02M 25 - Engine-pertinent apparatus for adding non-fuel substances or small quantities of secondary fuel to combustion-air, main fuel, or fuel-air mixture (28,324) |
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| 10/23/1990 | CA1275381C Fuel vapor storage canister |
| 10/17/1990 | EP0392545A1 Method and apparatus for producing a water-in-fuel-emulsion |
| 10/16/1990 | US4962744 Device for detecting malfunction of fuel evaporative purge system |
| 10/16/1990 | US4962570 Throttle control system for internal combustion engine with vehicle driving condition-dependent throttle angle correction coefficient variable |
| 10/15/1990 | WO1990012959A1 Method and apparatus for producing a water-in-fuel-emulsion and emulsifier-free water-in-fuel-emulsion |
| 10/09/1990 | US4961413 Exhaust gas recirculation valve assembly |
| 10/09/1990 | US4961412 Air-fuel ratio control system for an automotive engine |
| 10/04/1990 | WO1990011443A1 Process and device for checking the controllability of a tank ventilation valve |
| 10/02/1990 | US4960098 Method and apparatus for maintaining optimum oxygen level in combustion engines |
| 10/02/1990 | US4960096 Adapter for intake manifold |
| 10/02/1990 | CA1274736A1 Internal combustion engine |
| 09/27/1990 | DE3909932A1 Verfahren zur regeneration eines in der abgasleitung einer aufgeladenen brennkraftmaschine angeordneten partikelfilters A method for regeneration of the exhaust pipe of a supercharged internal combustion engine mounted particulate filter |
| 09/27/1990 | DE3907408A1 Valve for the metered addition of evaporated fuel to the fuel/air mixture of an internal combustion engine |
| 09/18/1990 | US4956973 Exhaust gas recycling system for an exhaust gas turbocharged engine |
| 09/18/1990 | CA1274134A1 Engine crankcase vacuum check valve system for internal combustion engines |
| 09/06/1990 | DE3901978A1 Apparatus for extracting vapours from fuel tanks |
| 09/04/1990 | US4953518 Exhaust gas recirculation valve |
| 09/04/1990 | US4953514 Device for the metered supplying of fuel vapor into the intake pipe of a combustion engine |
| 09/03/1990 | WO1990010150A1 Water vaporiser |
| 09/03/1990 | CA2048663A1 Water vaporiser |
| 08/29/1990 | EP0384017A1 Perfected feeding devices for internal combustion engines |
| 08/29/1990 | EP0204707B1 Method to operate a combustion engine and combustion engine |
| 08/28/1990 | US4951643 Fuel vapor treatment apparatus |
| 08/28/1990 | US4951637 Evaporative emission control system |
| 08/23/1990 | DE3905284A1 Verfahren zur optimierten verbrennung von kraftstoffen bei minimaler co-emission und vorrichtung zur durchfuehrung des verfahrens Method for the optimized combustion of fuels with minimal co-emission and apparatus for performing the method |
| 08/22/1990 | WO1990010149A1 Process for optimising fuel combustion with the minimum co emission and device for implementing it |
| 08/22/1990 | CA2046863A1 Process for optimising fuel combustion with the minimum co emission and device for implementing it |
| 08/21/1990 | US4949695 Device for detecting malfunction of fuel evaporative purge system |
| 08/14/1990 | US4947820 Combustion control system for internal combustion engine adaptable to on and off of exhaust gas recirculation |
| 08/14/1990 | CA1272647A1 Gas generator |
| 08/07/1990 | US4946060 For use with a fuel nozzle |
| 08/07/1990 | US4945885 Multi-fuel engine control with canister purge |
| 08/07/1990 | US4945868 Two cycle exhaust recycling |
| 08/01/1990 | EP0379720A1 Method for increasing the brake power of a four-stroke alternating piston-type internal-combustion engine |
| 07/31/1990 | US4944276 Purge valve for on board fuel vapor recovery systems |
| 07/19/1990 | DE3844056A1 Valve for the metered addition of volatilised fuel to the fuel-air mixture of an internal combustion engine |
| 07/18/1990 | CN2059457U Forced ventilating apparatus for crankcase of engine |
| 07/12/1990 | DE3900559A1 Method for detoxifying the exhaust of multi-cylinder mixture-compressing internal combustion engines |
| 07/11/1990 | CN1043775A Emulsifying device of diesel oil |
| 07/10/1990 | US4940101 Venting device for the fuel tank of a motor vehicle |
| 07/05/1990 | DE3844057A1 Valve for the metered addition of volatilised fuel to the fuel-air mixture of an internal combustion engine |
| 07/05/1990 | DE3842994A1 Activated charcoal filter for trapping fuel vapours |
| 07/04/1990 | EP0375762A1 Adaptive process and device for fuel tank ventilation with lambda regulation. |
| 07/03/1990 | US4938176 Mounting structure of EGR valve for internal combustion engine |
| 07/03/1990 | CA1271104A1 Pressure operated valve |
| 06/26/1990 | US4936261 Apparatus for introducing a fuel additive to the fuel tank of an automotive vehicle |
| 06/21/1990 | DE3940494A1 Kraftstoffsystem Fuel system |
| 06/14/1990 | WO1990006423A1 Process for removing soot and other combustible suspended particles from the combustion gases of fossil fuels, in particular of diesel and fuel oil, as well as separator for carrying out the process |
| 06/13/1990 | DE3841098A1 Exhaust gas recirculation valve for an internal combustion engine |
| 06/12/1990 | US4933862 Engine control apparatus |
| 06/12/1990 | US4932386 Fuel-vapor purge and air-fuel ratio control for automotive engine |
| 06/07/1990 | DE3840819A1 Verfahren zum entfernen von russ- und anderen brennbaren schwebstoffpartikeln aus dem verbrennungsgas fossiler brennstoffe, insbesondere von diesel- und heizoel sowie abscheider zur durchfuehrung des verfahrens Method for the removal of the particles in russia and other combustible gas from the combustion of fossil fuels, especially diesel and heating oil and separator for performing the method |
| 06/05/1990 | US4930456 Perfected feeding devices for internal combustion engines |
| 05/30/1990 | EP0370615A2 Fuel supply system for internal combustion engines |
| 05/23/1990 | EP0369482A2 Adapter for intake manifold |
| 05/22/1990 | US4926914 Vent control valve attached to fuel filler tube |
| 05/22/1990 | US4926825 Air-fuel ratio feedback control method for internal combustion engines |
| 05/18/1990 | CA2003218A1 Adapter for intake manifold |
| 05/17/1990 | DE3838110A1 Process and device for combined afterburning, denitrification and absorption of exhaust gases from diesel engines and purification of the fresh air supplied to the driver's cab |
| 05/15/1990 | US4924840 Fast response exhaust gas recirculation (EGR) system |
| 05/15/1990 | US4924668 Device for exhaust gas recirculation in diesel engines |
| 05/10/1990 | DE3836602A1 Device for the addition of additives to liquid fuels |
| 05/03/1990 | WO1990004708A1 Heat insulated engine |
| 05/03/1990 | DE3935612A1 IC engine fuel vapour recovery accessory - has additional pipe from filter to intake closed at low engine speed |
| 05/02/1990 | EP0365862A1 Exhaust gas recirculation device for a multicylinder diesel engine |
| 05/01/1990 | US4920932 Relating to controlling emissions from two stroke engines |
| 05/01/1990 | US4920930 System for blow-by gas return to the combustion chamber of an engine |
| 04/26/1990 | DE3833958A1 Apparatus for winding wire-shaped material onto double-flanged reels |
| 04/25/1990 | EP0364522A1 Process and device for adjusting a fuel tank ventilator valve. |
| 04/24/1990 | US4919103 Device for controlling evaporative emission from a fuel tank |
| 04/12/1990 | DE3153619C2 Altitude-compensated IC engine fuel injection pump |
| 04/11/1990 | EP0363021A1 Fast response exhaust gas recirculation (EGR) system |
| 04/10/1990 | US4915083 Exhaust gas recirculation valve construction and method of making the same |
| 04/10/1990 | US4915079 Adaptive control system for an internal combustion engine and method of operating an internal combustion engine |
| 04/04/1990 | EP0361654A1 Fuel injection control system |
| 04/03/1990 | US4913121 Fuel controller |
| 03/28/1990 | EP0360428A2 Motor vehicle fuel vapour emission control assembly |
| 03/20/1990 | US4909207 Cleaning system for fuel injectors |
| 03/20/1990 | US4909192 Method and cylinder head structure for supply of fuel into a piston engine |
| 03/20/1990 | US4909072 Measurement and control of exhaust gas recirculation with an oxygen pumping device |
| 03/20/1990 | US4909036 Exhaust system for internal combustion engine with compression wave supercharger |
| 03/14/1990 | EP0357882A2 Device for feeding measured quantities of volatile fuel components to the intake conduit of an internal-combustion engine |
| 03/13/1990 | US4907560 Exhaust-gas recirculating system for internal-combustion engines |
| 03/08/1990 | DE3828602A1 Activated charcoal filter |
| 03/06/1990 | US4905657 Emission control valve with gas flow shut-off |
| 03/06/1990 | US4905656 Emission control valve with internal spring |
| 03/06/1990 | US4905646 Two-stroke internal combustion engine with cylinder head valves |
| 03/01/1990 | DE3828764A1 Method and device for adjusting the ignition phase in the operation of a spark ignition engine |
| 02/28/1990 | EP0355976A1 Fuel vapour recovery system |
| 02/27/1990 | US4903672 Fuel tank overfill prevention |
| 02/22/1990 | WO1990001628A1 Stereo lambda control system |
| 02/20/1990 | US4901974 Canister purge solenoid valve |
| 02/20/1990 | US4901702 Apparatus for the measured feeding of volatile fuel components to the intake tube of an internal combustion engine |
| 02/14/1990 | EP0354299A2 Device for introducing additional gas streams to the intake manifold of a carburettor engine |
| 02/06/1990 | US4898143 Exhaust gas recirculation control method for internal combustion engines |
| 02/01/1990 | DE3825418A1 Fuel filler neck |
| 01/31/1990 | EP0280678B1 Method for reducing nitric oxide emissions in exhaust gases from diesel engines |
| 01/24/1990 | EP0351960A2 Measurement and control of exhaust gas recirculation with an oxygen pumping device |
| 01/16/1990 | US4894072 High efficiency vapor storage canister |
| 01/16/1990 | US4893643 Tank vapor vent valve assembly with improved overfill protection |