| 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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| 09/21/1993 | US5245953 Emulsion fuel engine |
| 09/21/1993 | US5245870 Apparatus for measuring the fraction of liquid fuel in a fuel tank |
| 09/16/1993 | WO1993018288A1 Catalytic liquid injection system for emission control |
| 09/16/1993 | DE4207541A1 Exhaust recirculation rate control system e.g. for turbo-diesel engines - includes simulator in loop determining amt. of air inducted in accordance with measured engine speed and injected fuel quantity |
| 09/15/1993 | EP0560476A1 Variable valve timing operated engine |
| 09/15/1993 | EP0559854A1 Procedure and device for checking the operability of tank-venting system |
| 09/14/1993 | US5244022 Fuel flow activated fuel vapor control apparatus |
| 09/14/1993 | US5243949 Diagnostic device for exhaust gas recirculation device |
| 09/14/1993 | US5243944 Tank-venting apparatus as well as a method and an arrangement for checking the operability thereof |
| 09/14/1993 | US5243932 Pilot/main fuel injection method for diesel engines |
| 09/14/1993 | US5243853 Method and arrangement for diagnosing the open-loop control of the tank-venting valve in combination with the open-loop control of an internal combustion engine |
| 09/14/1993 | US5243852 Failure diagnosis device for an automotive engine |
| 09/09/1993 | DE4206664A1 IC engine with steam injection for pressure increase - has water inlet(suction or injection)next to or in conventional carburettor |
| 09/08/1993 | CN1075899A Apparatus for preparing a water in oil emulsion |
| 09/07/1993 | US5241943 Air-fuel ratio control method for internal combustion engines |
| 09/07/1993 | US5241940 Automotive EGR system |
| 09/07/1993 | CA1322036C Diagnosis arrangement for vehicle engine controller |
| 09/02/1993 | DE4231218C1 Exhaust-return system for pressure-charged engine - has exhaust turbocharger with compressor in by=pass pipe for gas returned to engine intake |
| 09/01/1993 | EP0558358A1 Exhaust recirculation device for a compression ignition engine driven by the charge lever of the engine |
| 09/01/1993 | EP0558072A1 Internal combustion engine |
| 09/01/1993 | EP0557525A1 Method and device for preparation of fuel-air mixture for internal combustion engine |
| 08/31/1993 | US5239971 Trouble diagnosis device for exhaust gas recirculation system |
| 08/31/1993 | US5239960 Engine induction system provided with a mechanical supercharger |
| 08/31/1993 | US5239858 Method and apparatus for the automated testing of vehicle fuel evaporation control systems |
| 08/31/1993 | US5239824 Evaporative emission control system for internal combustion engines |
| 08/26/1993 | DE4305865A1 Mixture controller for gas powered engine with catalytic converter |
| 08/26/1993 | DE4304180A1 Engine fuel system with fuel-vapour filter - has filter housing formed by recess in fuel tank accessible from outside after removing cover |
| 08/26/1993 | DE4205565A1 Electropneumatic pressure transducer for pneumatic control in motor vehicle - has higher switching hysteresis for part of valve controlling low pressure air contact than for part controlling atmospheric pressure contact |
| 08/26/1993 | DE4205101A1 Controlled dosing of fuel vapour into IC engine - using double action control valve to shut off when engine is off and to restrict fuel vapour release at idling speed |
| 08/25/1993 | EP0556488A1 Fuel vapour storage canister |
| 08/24/1993 | US5237980 On-board fuel vapor recovery system having improved canister purging |
| 08/24/1993 | US5237973 Four-stroke cycle engine |
| 08/19/1993 | WO1993016276A1 Method of operating an automotive type internal combustion engine |
| 08/19/1993 | DE4204434A1 Control valve for exhaust gas recycling - has flat slider valve with spring return as well as servo drive |
| 08/17/1993 | US5236330 Measuring the oxygen content in the combustion products gas stream |
| 08/17/1993 | US5235955 Fuel evaporative emission control system |
| 08/17/1993 | US5235936 For use in internal combustion engines |
| 08/11/1993 | EP0554928A1 Fuel handling system |
| 08/11/1993 | EP0554587A1 Flow device for fuel evaporative control system |
| 08/11/1993 | EP0431101B1 Ventilation device for the fuel tank of an internal-combustion engine |
| 08/10/1993 | US5233967 For a motorcycle engine |
| 08/08/1993 | CA2088698A1 Method of operating an automotive type internal combustion engine |
| 08/05/1993 | WO1993015382A1 Process and device for detecting the level in a tank |
| 08/05/1993 | WO1993015313A1 Process and device for testing the operativeness of a tank ventilation system |
| 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 |
| 08/05/1993 | DE4203100A1 Verfahren und vorrichtung zum pruefen der funktionsfaehigkeit einer tankentlueftungsanlage Method and apparatus for testing the funktionsfaehigkeit a tankentlueftungsanlage |
| 08/05/1993 | DE4203099A1 Verfahren und vorrichtung zur tankfuellstandserkennung Method and device for tankfuellstandserkennung |
| 08/04/1993 | CA2086880A1 Flow sensor for evaporative control system |
| 08/04/1993 | CA2079580A1 Vapor suppressing fuel handling system |
| 08/03/1993 | US5231969 Fuel evaporative emission control system for internal combustion engine |
| 07/31/1993 | CA2078386A1 Hot restart compensation |
| 07/29/1993 | DE4201836A1 I.C engine with fuel prepn. device - entails fuel or combustion air or mixing conditioning devices arranged directly in front of engine or fitted directly on it |
| 07/27/1993 | US5230319 Apparatus for detecting malfunction in evaporated fuel purge system |
| 07/22/1993 | WO1993014366A1 Tank venting and vapor recovery system |
| 07/22/1993 | WO1993005289A3 Methanol fueled diesel cycle internal combustion engine |
| 07/22/1993 | DE4201423A1 Combined Diesel engine and gas permeate assembly - reduces particle exhaust emissions with no significant increase in cylinder pressure |
| 07/20/1993 | US5228421 Idle speed control system |
| 07/20/1993 | US5228368 Control system for supercharged engine/automatic transmission combination |
| 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 |
| 07/13/1993 | US5226401 Method and apparatus for exhaust gas recirculation via reverse flow motoring |
| 07/13/1993 | US5226398 Regulated flow canister purge system |
| 07/13/1993 | US5226397 Apparatus for feeding volatile fuel components in measured quantities into the intake tube of an internal combustion engine |
| 07/13/1993 | CA1320078C Vacuum bleed and flow restrictor fitting for fuel injected engines with vapor separator |
| 07/06/1993 | US5224462 Air/fuel ratio control system for an internal combustion engine |
| 07/06/1993 | US5224460 Method of operating an automotive type internal combustion engine |
| 07/06/1993 | US5224456 Starting fuel supply control system for internal combustion engines |
| 07/06/1993 | US5224455 Gas discharging device for charcoal canister |
| 07/01/1993 | DE4243982A1 Prodn. of absorbent for reversibly absorbing fuel vapour - by dissolving polymerisable vinyl monomer and copolymerisable activated monomer in solvent and polymerising with initiator |
| 06/29/1993 | US5223009 Exhaust gas equipment for an internal combustion engine |
| 06/24/1993 | DE4142016A1 Plastics fuel tank for vehicle - incorporates second skin with adsorption particles to prevent fuel emissions |
| 06/22/1993 | US5220898 Pressure control system for controlling pressure in fuel tank of engine by controlling discharging of evaporated fuel in fuel tank into canister |
| 06/22/1993 | US5220897 Apparatus for the controlled feeding of volatile fuel components to the intake of an internal combustion engine |
| 06/22/1993 | US5220896 Tank-venting arrangement and method for checking the tightness thereof |
| 06/17/1993 | DE4140650A1 Hydrogen@ driven vehicle - has hydrogen@ produced by catalytic splitting of water into hydrogen and oxygen on board the vehicle |
| 06/16/1993 | EP0546247A1 Device for feeding measured quantities of volatile fuel components to the intake conduit of an internal combustion machine |
| 06/10/1993 | WO1993010993A1 Venting device for a fuel tank of an internal combustion engine |
| 06/10/1993 | WO1993010992A1 Ventilating device for the fuel tank of an internal combustion engine |
| 06/10/1993 | WO1993010991A1 Venting device for a fuel tank of an internal combustion engine |
| 06/09/1993 | EP0545455A1 Exhaust gas recirculation valve assembly |
| 06/09/1993 | EP0545334A2 Device for emulsifying diesel oil and water |
| 06/09/1993 | EP0545122A1 Positive pressure canister purge system integrity confirmation |
| 06/09/1993 | EP0545121A1 Vauum boost valve |
| 06/09/1993 | DE4140256A1 Entlueftungsvorrichtung fuer einen brennstofftank einer brennkraftmaschine Entlueftungsvorrichtung for a fuel capacity of an internal combustion engine |
| 06/09/1993 | DE4140255A1 Entlueftungsvorrichtung fuer einen brennstofftank einer brennkraftmaschine Entlueftungsvorrichtung for a fuel capacity of an internal combustion engine |
| 06/09/1993 | DE4140090A1 Evaporative control for vehicle fuel system - has canister to trap fuel vapour arranged between fuel tank and exhaust. |
| 06/08/1993 | US5216998 Evaporative fuel-purging control system for internal combustion engines |
| 06/08/1993 | US5216997 Fuel supply control device of an engine |
| 06/08/1993 | US5216995 Evaporative fuel-purging control system and air-fuel ratio control system associated therewith for internal combustion engines |
| 06/08/1993 | US5216991 Internal combustion engine controller |
| 06/05/1993 | CA2079520A1 Apparatus for the temporary storage and controlled feeding of volatile fuel components into the intake manifold of an internal combustion engine |
| 06/03/1993 | CA2082684A1 Positive pressure canister purge system integrity confirmation |
| 06/02/1993 | EP0543859A1 Fluid additive regulating apparatus and method |
| 06/01/1993 | US5215110 Fuel tank vent system and diaphragm valve for such system |
| 06/01/1993 | US5215061 Control system for internal combustion engines |
| 06/01/1993 | US5215055 Idle speed and fuel vapor recovery control system |
| 05/27/1993 | WO1993010347A1 Emulsion fuel feeding apparatus and method |
| 05/27/1993 | CA2123423A1 Emulsion fuel feeding apparatus and method |
| 05/26/1993 | EP0543704A1 Method and arrangement to improve the vaporization of fuel in an internal combustion engine |
| 05/26/1993 | EP0543477A2 Process for the addition of ferrocene to fuels or to petrol |