| 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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| 01/25/1994 | USRE34518 Vacuum actuated tank vapor vent valve |
| 01/25/1994 | US5280775 Fuel vapor control valve device |
| 01/20/1994 | WO1994001673A1 Device for fitting a heated member to a hollow body made of a thermoplastic material and comprising at least one cold fluid inlet, and hollow body provided therewith |
| 01/20/1994 | WO1994001672A1 Device for preparation of fuel-air mixture for internal combustion engine |
| 01/20/1994 | DE4312077C1 Exhaust gas turbocharger for IC engine - has at least one turbine and compressor, turbine having inflow and outflow sides, turbine wheel, housing with spirally-shaped flow channel and variable guide blade crown |
| 01/20/1994 | DE4241274C1 Vehicle fuel tank vapour delivery system - has active carbon filter coupled to atmosphere via vent valve with under- and=or over-pressure characteristic |
| 01/19/1994 | EP0470960B1 Process and device for checking the controllability of a tank ventilation valve |
| 01/18/1994 | US5279622 Triazine dyes |
| 01/18/1994 | US5279273 EGR apparatus for an internal combustion engine |
| 01/13/1994 | DE4225993C1 Fuel vapour recovery system for automobile fuel tank - uses absorption element within storage chamber coupled to electromagnetically operated valve supplying fuel vapour to air intake. |
| 01/12/1994 | EP0577625A1 Diagnostic system for canister purge system |
| 01/11/1994 | US5277168 Fuel outflow preventing apparatus of fuel tank for vehicle |
| 01/11/1994 | US5277167 Vapor management valve |
| 01/05/1994 | EP0576729A1 Intake manifold for an internal combustion engine with one cylinder head |
| 01/05/1994 | DE4321208A1 Exhaust gas feedback device - is used to reduce concn. of nitrous oxide in exhaust gases from petrol IC engines and comprises two superimposed metal plates. |
| 01/05/1994 | DE4222087A1 Reduced emission air charging for diesel engine - has recycled exhaust gas line with particle filter located before exhaust turbine |
| 01/05/1994 | CN1080359A Method and apparatus for exhaust gas recirculation via reverse flow motoring |
| 01/04/1994 | US5275145 Vapor recovery system for motor vehicles |
| 01/04/1994 | US5275144 Evaporative emission system diagnostic |
| 12/29/1993 | EP0575981A1 Method of detecting faults for fuel evaporative emission treatment system |
| 12/28/1993 | US5273020 Fuel vapor purging control system for automotive vehicle |
| 12/28/1993 | US5273018 Evaporation fuel control apparatus of engine |
| 12/28/1993 | US5272873 Evaporative emission control system for internal combustion engines |
| 12/23/1993 | WO1993025882A1 Evaporative emission system leak test method and apparatus therefor |
| 12/23/1993 | DE4320671A1 Fuel absorber system used in control devices - comprises binder matrix which is permeable to fuel and dispersed polymer particles with high fuel absorption capacity |
| 12/22/1993 | EP0574614A1 EGR orifice plate coupler |
| 12/21/1993 | US5271914 Process for adsorbing the vapor of alcoholic fuels |
| 12/21/1993 | US5271370 Emulsion fuel engine |
| 12/21/1993 | US5271361 Engine conditioning apparatus and method |
| 12/21/1993 | US5271221 Integrated feedback controlled secondary air injection and egr |
| 12/16/1993 | DE4319380A1 IC engine with turbo charger - has nozzle diffusor unit in charging air line, with a constriction in diffusor |
| 12/15/1993 | EP0574181A1 Internal combustion engine with secondary air circuit and exhaust gas recirculation circuit |
| 12/15/1993 | EP0394494B1 Heat insulated engine |
| 12/15/1993 | CN1079533A Method and apparatus to reduce engine combustion noise utilizing unit valve actuation |
| 12/14/1993 | US5269837 Evaporation loss control device |
| 12/14/1993 | US5269279 Evaporating fuel control device for vehicles |
| 12/14/1993 | US5269278 Device for storing and feeding fuel vapors |
| 12/14/1993 | US5269277 Failure-detecting device and fail-safe device for tank internal pressure sensor of internal combustion engines |
| 12/14/1993 | US5269144 Methanol fueled turbocharged diesel cycle internal combustion engine |
| 12/09/1993 | WO1993024751A2 Misfire detection in an internal combustion engine using exhaust pressure |
| 12/09/1993 | WO1993024749A1 Method and apparatus to reduce engine combustion noise utilizing unit valve actuation |
| 12/09/1993 | WO1993024748A1 Method and apparatus for exhaust gas recirculation via reverse flow motoring |
| 12/09/1993 | WO1993024220A1 Electrical apparatus and method for generating antibiotic |
| 12/09/1993 | CA2136750A1 Electrical apparatus and method for generating antibiotic |
| 12/08/1993 | EP0572707A1 Method of control of internal combustion engine with exhaust gas recirculation |
| 12/07/1993 | US5267548 Method of adaptive precontrol/feedback control of air/fuel mixtures |
| 12/07/1993 | US5267547 Tank internal pressure-detecting device for internal combustion engines |
| 12/07/1993 | US5267470 Pressure sensor mounting for canister purge system |
| 12/02/1993 | DE4316392A1 Metering of fuel with extra air addition for IC engine - using valve in filter tank opening to allow extra air in under certain engine operating conditions |
| 11/30/1993 | US5265842 Emission control metering valve |
| 11/30/1993 | US5265578 Device for quantitatively regulating the supplying of burned gases into the combustion chamber of an internal combustion engine |
| 11/30/1993 | US5265577 Method and arrangement for checking the operability of a tank-venting system |
| 11/25/1993 | WO1993023668A1 Fuel/gas delivery system for internal combustion engines |
| 11/25/1993 | WO1993023265A1 Fuel system for motor vehicles |
| 11/25/1993 | CA2135765A1 Fuel/gas delivery system for internal combustion engines |
| 11/23/1993 | US5263462 System and method for detecting leaks in a vapor handling system |
| 11/23/1993 | US5263461 Evaporative fuel-purging control system for internal combustion engines |
| 11/23/1993 | US5263460 Duty cycle purge control system |
| 11/18/1993 | DE4315034A1 Multistage method to operate two=stroke engine - enables engine to do mechanical work and to produce hydrogen |
| 11/18/1993 | DE4216067A1 Fuel tank ventilation system for car - has control unit to close valve between adsorption filter and manifold if tank partial pressure exceeds threshold |
| 11/18/1993 | DE4216044A1 Diagnosis system for IC engine with EGR - has diagnosis unit to establish difference in misfire frequencies between two positions of recirculation control valve |
| 11/16/1993 | US5261379 Evaporative purge monitoring strategy and system |
| 11/16/1993 | US5261373 Engine exhaust gas recirculation system |
| 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 | US5259412 Fuel tank vapor recovery control |
| 11/09/1993 | US5259355 Gaseous fuel flow rate detecting system |
| 11/09/1993 | US5259354 Device for the pre-measured input of volatile fuel components into the intake tube of an internal combustion engine |
| 11/09/1993 | US5259353 Fuel evaporative emission amount detection system |
| 11/09/1993 | US5259196 Inlet air cooling system |
| 11/03/1993 | EP0567489A1 Hydrocarbon emission control |
| 11/02/1993 | US5257613 Engine control system |
| 11/02/1993 | US5257610 Troubleshooting system for exhaust gas recirculation controller |
| 11/02/1993 | US5257534 Fault diagnosis device for an exhaust gas recycle control unit |
| 11/02/1993 | CA1323807C Vapor separator |
| 10/28/1993 | DE4235794C1 Exhaust gas feedback for IC engine - has feedback conduit connecting exhaust gas conduit before turbine with charging air conduit after compressor |
| 10/28/1993 | DE4213047A1 Radial compressor for vehicle exhaust gas turbocharger - uses feed pipe to deliver flow medium to influence conditions in circulation chamber |
| 10/26/1993 | US5255735 Fuel vapor recovery device |
| 10/26/1993 | US5255659 Pressure balanced exhaust gas recirculation valve |
| 10/19/1993 | US5253629 Flow sensor for evaporative control system |
| 10/19/1993 | CA1323259C Method for improving combustion in combustion engines |
| 10/19/1993 | CA1323258C Fuel emission control apparatus for metering collected volatile fuel components into an internal combustion engine intake manifold |
| 10/13/1993 | EP0565410A1 Integrated rail device for the exhaust gas recirculation of an internal combustion engine |
| 10/13/1993 | EP0564701A1 Exhaust gas recirculation pressure diffenrential venturi and coupler |
| 10/12/1993 | US5251599 Internal combustion engine control device having exhaust gas recycle system |
| 10/12/1993 | US5251592 Abnormality detection system for evaporative fuel control systems of internal combustion engines |
| 10/12/1993 | US5251477 Self-diagnosis apparatus in a system for prevention of scattering of fuel evaporation gas |
| 10/06/1993 | EP0461152B1 Water vaporiser |
| 10/05/1993 | US5249561 Hydrocarbon vapor sensor system for an internal combustion engine |
| 10/05/1993 | US5249552 Fuel combustion efficiency |
| 09/30/1993 | DE4308479A1 Exhaust gas recirculation adjuster for vehicle IC engine - uses resistive element having negative temp. coefft. in circuit supplying pulse-width-modulated current to coil of pressure controller |
| 09/30/1993 | DE4225050C1 System for preconditioning air or air=gas mixture entering IC engine - has mixing chamber for direct mixing of charge with exhaust gas for preheating and humidification with gas centrifuge for exhaust expulsion |
| 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 |
| 09/29/1993 | EP0442981B1 Internal combustion engine |
| 09/28/1993 | CA1322497C Multi orientation fuel vapor storage canister assembly |
| 09/21/1993 | US5246632 Circulatory ion vapor generator and method |
| 09/21/1993 | US5245978 Control system for internal combustion engines |
| 09/21/1993 | US5245975 Direct injection type internal combustion engine |
| 09/21/1993 | US5245974 Treatment of fuel vapor emissions |
| 09/21/1993 | US5245973 Failure detection device for evaporative fuel purge system |