Abstract: Means for supplying a fuel/air mixture to an internal combustion engine comprises a housing, means for injecting fuel into the housing, means for transferring sufficient heat to the fuel so that substantially all the fuel is vaporized when it leaves the housing, means for admitting air into the housing to form a mixture with the vaporized fuel, outlet conduit means for conducting the mixture out of the housing for combustion in the engine and, preferably, rotor means positioned in the outlet conduit means for rotation by the gases passing through the outlet conduit means.

Abstract: A carburetor for an internal combustion engine comprises a housing, porous matter contained in the housing, means for injecting fuel into the housing and onto the porous matter to effect completion of vaporization of the fuel, means for admitting air into the housing to form a mixture with the vaporized fuel and means for conducting the mixture out of the housing for combustion in the engine. Preferably, means are provided for transferring heat from the exhaust gases of the engine to the housing and the porous matter and to the fuel before the fuel is injected into the housing.

Abstract: A carburetor for an internal combustion engine comprises a housing, porous matter contained in the housing, means for injecting fuel into the housing and onto the porous matter to effect completion of vaporization of the fuel, means for admitting air into the housing to form a mixture with the vaporized fuel and means for conducting the mixture out of the housing for combustion in the engine. Preferably, means are provided for transferring heat from the exhaust gases of the engine to the housing and the porous matter.

Abstract: A carburetor for an internal combustion engine comprises a housing, porous matter contained in the housing, means for injecting fuel into the housing and onto the porous matter to effect completion of vaporization of the fuel, means for admitting air into the housing to form a mixture with the vaporized fuel and means for conducting the mixture out of the housing for combustion in the engine.