Patent ID: 6966308

Claim:
A fuel supply assembly for a gasoline fueled engine including a combustion chamber for combusting fuel, and an exhaust for the combusted fuel, which assembly comprises: a vaporizing tank, a quantity of liquid gasoline fuel contained in the tank, a heating source for heating the liguid gasoline fuel, and a temperature control for controlling the temperature of the liquid gasoline fuel as contained in the tank; said temperature control maintaining the temperature of the liquid gasoline fuel at a determined temperature to produce vaporization of the fuel which rises from the surface of the liquid, a conduit arrangement conveying the vaporized gasoline fuel from the tank, a primary source of ambient air mixed with the vaporized gasoline fuel conveyed by said conduit arrangement and said conduit arrangement conveying the intermixed ambient air and vaporized fuel to the engine for combustion; and an automatic control substantially continuously monitoring the engine exhaust during operation of the engine and controlling the intermixing of the ambient air and vaporized gasoline fuel to maintain a desired hydrocarbon level in the exhaust throughout environmental and load demand conditions.