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Class Information
Number: 123/546
Name: Internal-combustion engines > Charge forming device (e.g., pollution control) > Heating of combustible mixture > Combustible mixture surrounds heating medium
Description: Subject matter in which a passage or conduit that conveys the air-fuel mixture to the engine completely encircles or surrounds the source of heat.










Patents under this class:
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Patent Number Title Of Patent Date Issued
8667955 Handheld work apparatus having a control unit for operating an electric load Mar. 11, 2014
8584655 Fuel heating device Nov. 19, 2013
8511287 Supercritical-state fuel injection system and method Aug. 20, 2013
8297262 Fuel vapor storage and recovery apparatus Oct. 30, 2012
7380546 Vapor fueled engine Jun. 3, 2008
7028675 Vapor fueled engine Apr. 18, 2006
6966308 Vapor fueled engine Nov. 22, 2005
6907866 Vapor fueled engine Jun. 21, 2005
6058915 Multicylinder internal combustion engine with externally supplied ignition May. 9, 2000
5666929 Fuel vaporizer for an internal combustion engine Sep. 16, 1997
5611392 Power fluid heating system Mar. 18, 1997
5568800 Fuel combustion enhancer Oct. 29, 1996
5394838 Vaporized fuel injection system Mar. 7, 1995
5218944 Fuel preheating system for internal combustion engines Jun. 15, 1993
5140967 Evaporation element in an internal-combustion engine cylinder head Aug. 25, 1992
5123398 Carburetion system Jun. 23, 1992
5115787 Spark ignition combustion engine of the fuel injection type and heating element therefor May. 26, 1992
5097813 Fuel pre-heater for liquid fueled engine Mar. 24, 1992
5050571 Diesel fuel conversion means for spark-ignition engines Sep. 24, 1991
5005551 In-line fuel heater Apr. 9, 1991
4930484 Fuel and air mixture expanding and preheating system Jun. 5, 1990
4865004 Marine propulsion system with fuel line cooler Sep. 12, 1989
4865005 Diesel fuel heater Sep. 12, 1989
4766867 Fuel supply system for internal combustion engine Aug. 30, 1988
4717808 Carburetor deicer Jan. 5, 1988
4593670 Fuel evaporator for internal combustion engine Jun. 10, 1986
4583511 Carburetion apparatus Apr. 22, 1986
4528967 Apparatus for heating the fuel-air mixture being supplied by a fuel metering system for use in a fuel injection type combustion engine Jul. 16, 1985
4512322 Engine preheaters Apr. 23, 1985
4491118 Fuel mixture method and apparatus employing an electrically heated screen Jan. 1, 1985
4467773 Fuel supply system with improved throttle body heater Aug. 28, 1984
4458654 Fuel vapor injection system Jul. 10, 1984
4445485 Engine fuel system May. 1, 1984
4438750 Device for fuel delivery to internal combustion engine with vaporization of injected fuel Mar. 27, 1984
4404948 Fuel systems for internal combustion engines Sep. 20, 1983
4388910 Intake expansion chamber apparatus for internal combustion engines Jun. 21, 1983
4379443 Intake manifold mounted air and fuel mixture heater Apr. 12, 1983
4368163 Apparatus for vaporizing fuel for engine in conjunction with carburetor Jan. 11, 1983
4348338 Injection-type pressure-freed carburetor Sep. 7, 1982
4342303 Fuel vaporizer and carburetor preheater system Aug. 3, 1982
4336783 Fuel vaporizer carburetor for internal combustion engine Jun. 29, 1982
4330492 Carburetor May. 18, 1982
4329963 Air-fuel charge heater and humidifier May. 18, 1982
4316442 Inlet manifold preheating device Feb. 23, 1982
4312318 Combustion engine fuel economizer Jan. 26, 1982
4308845 Early fuel evaporation with bypass Jan. 5, 1982
4280468 Regenerative reciprocating open cycle internal combustion engine Jul. 28, 1981
4279227 Heat storage in by-products of an intermittent process Jul. 21, 1981
4194476 Device for feeding Otto cycle engines with lean combustible mixtures Mar. 25, 1980
4188928 Fuel vaporizing apparatus for internal combustion engines Feb. 19, 1980

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