| Patents for F02M 31 - Apparatus for thermally treating combustion-air, fuel, or fuel-air mixture (6,583) |
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| 11/13/1991 | EP0456533A1 Intake device for internal combustion engine with premixing |
| 10/31/1991 | DE4035064C1 Method of fuelling IC engine - has fuel and water vapour mix cooled after passing through compressor |
| 10/30/1991 | EP0453927A1 Injection internal combustion engine with electric spark ignition |
| 10/17/1991 | CA2014615A1 (advanced gasification enhancement system) or a.g.e.s. |
| 10/16/1991 | CN2086800U Heating atomizer for gas mixture |
| 10/15/1991 | US5056495 Fuel supply device and heating device |
| 10/10/1991 | DE4010649A1 Otto cycle engine oil carburettor - vaporises oil by exhaust in chamber containing seven oil passages |
| 10/09/1991 | EP0450248A1 Thermal control system |
| 10/08/1991 | US5054459 Preheating device for internal combustion engine intake air and method of making same |
| 10/02/1991 | CN2085857U Warmer for oil-way of diesel vehicle |
| 09/25/1991 | CN2085421U Monomolecular state carburetor |
| 09/24/1991 | US5050571 Diesel fuel conversion means for spark-ignition engines |
| 09/24/1991 | US5050569 Fuel injection system for an internal combustion engine and fuel heating device therefor |
| 09/17/1991 | US5048501 Fuel economy system for internal combustion engines |
| 09/17/1991 | US5048500 Internal combustion engine with fuel injectors and heaters |
| 09/17/1991 | CA1289024C Alcohol fuel operation conversion means for internal combustion engines |
| 09/11/1991 | EP0445567A1 Exhaust gas cleaning system for diesel engine |
| 09/10/1991 | US5046473 Automatic air intake temperature regulator apparatus and method |
| 09/04/1991 | CN2084107U Fuel saver by using tail gas |
| 09/03/1991 | US5044331 Air-fuel ratio control method for an internal combustion engine having spark plugs with heaters |
| 08/29/1991 | DE4013839C1 Fuel supply installation for fuel injected diesel engine - has heat exchanger accepting returned fuel and cooperating with flame start installation |
| 08/28/1991 | WO1991013247A1 Exhaust emission control |
| 08/28/1991 | CN2083639U Automobile cold start carburetor pre-heating device |
| 08/28/1991 | CN2083638U Automobile fuel-saving tail gas cleaner |
| 08/27/1991 | US5042447 Thermostatically controlled fuel heater and cooler |
| 08/20/1991 | US5040518 Fuel vaporizer manifold |
| 08/20/1991 | US5040517 Carburetor preheater |
| 08/13/1991 | US5038742 Vaporizer nozzle |
| 08/13/1991 | US5038730 Start control system for alcohol engine |
| 08/13/1991 | US5038725 Intake manifold of internal combustion engine |
| 08/06/1991 | US5036825 Compact high efficiency fuel heater with integral thermostatic control |
| 08/06/1991 | US5036668 Engine intake temperature control system |
| 07/30/1991 | US5035227 Vaporizer for internal combustion steam engine |
| 07/17/1991 | CN2080993U Hot strangler of carburetor |
| 07/11/1991 | DE4000491A1 Radiation, biological and chemical protection for I.C. engine - has ABC filter in quick release encapsulating enclosure with external coolant loops to isolate engine from contaminated environment |
| 07/09/1991 | US5029634 Intank fuel heater |
| 07/09/1991 | CA1285883C Four-stroke cycle induction tuned v-engine with central exhaust manifold |
| 07/02/1991 | US5027783 Carburetor for an internal combustion engine |
| 06/13/1991 | DE3943569A1 Electric heater for air intake of IC engine - accelerates warm=up by burning fuel directed from nozzle to heated end of retractable igniter |
| 06/13/1991 | DE3940510A1 Reaction temp. raising appts. for combustion engine - heats ingested air using fuel injector and igniter in line by-passing air inlet line and using switch-over valve |
| 06/13/1991 | DE3940392A1 Air inlet system for combustion engine - has sensor measuring temp. of inlet air to regulate heating thus reduce air leakage due to loss of sealing |
| 06/12/1991 | EP0431357A1 Method of combustion of an aqueous fuel in an internal combustion engine |
| 06/05/1991 | CN1051928A Aqueous fuel for internal combustion engine and method of combustion |
| 05/30/1991 | WO1991007582A1 Automotive fuel vaporization system |
| 05/30/1991 | WO1991007581A1 Evaporation carburettor for an internal combustion engine |
| 05/30/1991 | WO1991007579A1 Aqueous fuel for internal combustion engine and method of combustion |
| 05/29/1991 | DE3926011A1 Naturally aspirated piston engine - has discrete after-explosion section within silencer |
| 05/29/1991 | CN1012694B Alcohol fuel air-in evaporator |
| 05/23/1991 | DE3938686A1 Fuel filter unit for diesel vehicles - has an internal space which contains filter cartridge surrounded by at least one annular space |
| 05/22/1991 | EP0287590B1 Fuel cooling heat exchanger |
| 05/16/1991 | WO1991006757A1 Fuel delivery system for an internal combustion engine |
| 05/15/1991 | EP0427262A1 Electrically heated air fuel mixing device with PTC heating means |
| 05/15/1991 | CN2077032U Far-infrared electric heat axle for diesel filter |
| 04/23/1991 | US5009686 Air cleaner of engine for vehicle |
| 04/18/1991 | WO1991005158A1 Heavy duty air filter with integral snow valve |
| 04/16/1991 | US5007402 Intake system for a mixture-compressing internal-combustion engine |
| 04/16/1991 | CA1283009C Fuel feed device, particularly for diesel engines, with fuel filtering, heating and emulsifying members |
| 04/09/1991 | US5005551 In-line fuel heater |
| 04/03/1991 | CN2074370U Fuel-oil heating apparatus for diesel locomotive |
| 04/02/1991 | US5003941 For liquid cooled internal combustion engine |
| 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 | US5000152 Fuel conservation means for internal combustion engines |
| 03/07/1991 | DE3929115A1 Injection system for IC engine - has back pressure valve to return fuel to feed tube between tank and pump |
| 02/26/1991 | US4995992 Bouyant valve controls fuel flow through conduit; settling |
| 02/21/1991 | DE3926813A1 IC engine with heat exchanger in combustion chamber - has external source of heat for starting from cold |
| 02/21/1991 | DE3926812A1 Ignition system for IC engine - has combustion chamber fitted with heat exchangers to ignite charge |
| 02/14/1991 | DE4018221A1 Fuel preheater for internal combustion engine - is formed by coil of copper pipe wound around engine cooling water pipe |
| 02/13/1991 | EP0412210A1 Decanter prefilter for diesel engine fuel |
| 02/13/1991 | CN2071259U Tail gas recoving type temp. increasing device of ic engine oil box |
| 02/12/1991 | US4991644 Internal combustion |
| 01/23/1991 | EP0409187A1 Process for operating a piston engine and device for admission of a pressurized fuel-water vapour mixture |
| 01/22/1991 | US4986907 Fuel purifying apparatus |
| 01/22/1991 | US4986223 Internal combustion engine injection superheated steam |
| 01/17/1991 | DE4020990A1 Exhaust gas to air heat exchanger for IC engine exhaust - has air inlet and outlet connections at the ends and midpoint of heat exchanger, dividing it into two separate axial sections |
| 01/16/1991 | EP0407670A1 Fuel pipeline heater |
| 01/16/1991 | CN2069487U Automobile secondary warm air carburation energy-economizing device |
| 01/15/1991 | US4984555 Diesel engine fuel pipeline heating device |
| 01/09/1991 | EP0406546A1 Intake system for a mixture compressing internal combustion engine |
| 01/02/1991 | CN2068591U Magnetization gasoline economizer heating apparatus |
| 01/02/1991 | CN2068590U Evaporation burner |
| 12/27/1990 | EP0404477A1 A fuel supply device and heating device |
| 12/27/1990 | EP0404338A1 Two cycle engine scavenging heat control |
| 12/27/1990 | EP0299132B1 Device for vaporizing a fuel-water emulsion for an internal-combustion engine |
| 12/26/1990 | CN2068153U Rotational gas flow hot-mixed oil-saving purifier for automobile |
| 12/25/1990 | US4979483 Diesel fuel heater |
| 12/18/1990 | CA1278025C Torque limiting arrangement in an i.c. engine |
| 12/05/1990 | EP0400223A1 Filter for diesel fuel, provided with self-adjusting heating means |
| 11/27/1990 | US4972821 Automotive fuel vaporization system for better fuel economy and environmental quality having fire retarding properties |
| 11/20/1990 | US4971018 Diesel fuel heater |
| 11/13/1990 | US4969939 Heavy duty air filter with integral snow valve |
| 11/06/1990 | US4967706 Internal-combustion engine of the injection type, and plate intended for fitting between the inlet ports of a cylinder block of such an engine and an inlet tube |
| 10/24/1990 | EP0228468B1 Fuel system for internal combustion engine |
| 10/23/1990 | US4964376 Device for bypassing heat exchange conduits |
| 10/18/1990 | DE3912534A1 Petrol cooler constructed from two coaxial tubes - incorporates copper inner tube and stainless steel outer tube |
| 10/10/1990 | EP0390913A1 Vaporiser nozzle. |
| 10/04/1990 | DE3916337A1 Rapid response heating system for vehicle - involves insulation of heat exchanger on exhaust pipe |
| 10/02/1990 | CA1274736A1 Internal combustion engine |
| 09/27/1990 | DE3933587A1 Liquid cooled automotive IC engine - has throttle butterfly housing heater connected to vehicle heating system |
| 09/13/1990 | DE3907808A1 Filter |
| 09/12/1990 | CN2061978U Air inlet tube heating device for engine |