Carburetor for internal combustion engine

Claim 1

A CARBURETOR FOR AN INTERNAL COMBUSTION ENGINE COMPRISING: A HOUSING HAVING AN AIR INLET AND AN OUTLET FORMED FOR CONNECTION TO AN ENGINE INTAKE MANIFOLD FOR DRAWING A STREAM OF INTAKE AIR THROUGH THE HOUSING, AN ANNULAR CHAMBER IN THE HOUSING OPENLY COMMUNICATING WITH THE AIR INLET, AN INVERTED, FRUSTO-CONICAL MEMBER MOUNTED WITH ITS UPPER END COAXIALLY WITHIN THE ANNULAR CHAMBER, AND WITH ITS TRUNCATED END DIRECTED TOWARD THE HOUSING OUTLET, A ROTARY FUEL CUP HAVING A PERIPHERAL WALL TERMINATING IN A RIM SURROUNDING THE OPEN END OF THE FUEL CUP, THE FUEL CUP BEING MOUNTED WITH THE RIM THEREOF SPACED SLIGHTLY FROM THE TRUNCATED END OF THE FRUSTOCONICAL MEMBER, THE CUP BEING ROTATABLE COAXIALLY OF THE FRUSTO-CONICAL MEMBER, A FUEL NOZZLE MOUNTED TO DISCHARGE METERED QUANTITIES OF FUEL INTO THE FUEL CUP, DRIVE MEANS FOR RAPIDLY SPINNING THE FUEL CUP ABOUT ITS AXIS TO DISCHARGE, IN VAPOR FORM, FROM THE RIM OF THE CUP, BY CENTRIFUGAL FORCE, LIQUID FUEL FED INTO THE FUEL CUP BY THE NOZZLE, FOR ENTRAINMENT OF SUCH FUEL VAPOR IN A STREAM OF INTAKE AIR FLOWING FROM THE AIR INLET THROUGH THE ANNULAR CHAMBER, PAST THE FRUSTOCONICAL MEMBER AND THE FUEL CUP TOWARD THE HOUSING OUTLET, AND THROTTLE MEANS MOUNTED TO CONTROL THE FLOW OF INTAKE AIR THROUGH THE HOUSING.