Carburetor

A carburetor for supplying a fuel/air mixture to an internal combustion engine having an intake manifold comprising a housing, contained in the housing only matter which is inert relative to the fuel, said matter being porous, means for transferring heat from the exhaust gases of the engine to the housing and the porous matter, means for injecting at least partially liquid fuel into the housing and onto said porous matter, means for heating all the fuel which is injected into the housing sufficiently before the fuel leaves the housing so that all the fuel is completely vaporized when it leaves the housing, means for admitting air into the housing simultaneously with the injection of the fuel to form a mixture with all the vaporized fuel and means for conducting the entire mixture out of the housing directly to the intake manifold during all phases of operation of the engine for combustion in the engine.