Charge forming apparatus

Claim 1

CHARGE FORMING APPARATUS OF THE CHARACTER DISCLOSED, IN COMBINATION, A BODY CONSTRUCTION PROVIDED WITH A HORIZONTAL AIR AND FUEL MIXING PASSAGE AND A FUEL CHAMBER BENEATH THE MIXING PASSAGE ADAPTED TO CONTAIN LIQUID FUEL, A THROTTLE VALVE IN SAID PASSAGE, A FUEL INLET FOR THE FUEL CHAMBER, A VALVE IN SAID FUEL INLET, ANNULARLY-SHAPED FLOAT MEANS ARRANGED TO CONTROL SAID FUEL INLET VALVE, SAID MIXING PASSAGE BEING FORMED WITH A MAIN VENTURI AND A SUPPLEMENTAL VENTURI HAVING THEIR AXES IN PARALLEL RELATION, THE SUPPLEMENTAL VENTURI BEING WITHIN THE CONFINES OF THE MAIN VENTURI SO THAT THE MAIN VENTURI AIR FUEL MIXTURE CIRCULATES AROUND A MAJOR PORTION OF THE OUTSIDE WALL OF SAID SUPPLEMENTAL VENTURI, THE AXIS OF SAID SUPPLEMENTAL VENTURI BEING OFFSET FROM THE AXIS OF THE MAIN VENTURI AND PARALLEL TO THE SURFACE OF THE FUEL IN THE FUEL CHAMBER AND BEING IMMEDIATELY ADJACENT THE SURFACE OF THE FUEL IN SAID FUEL CHAMBER, MEANS FORMED IN SAID FUEL CHAMBER PROVIDING A FUEL WELL, TUBULAR MEANS IN SAID WELL HAVING ITS AXIS NORMAL TO THE AXIS OF THE SUPPLEMENTAL VENTURI, THE OUTLET OF THE TUBULAR MEANS OPENING INTO THE SUPPLEMENTAL VENTURI AND FORMING A MAIN FUEL DISCHARGE ORIFICE, A SECONDARY FUEL DISCHARGE ORIFICE FORMED IN THE BODY CONSTRUCTION AND OPENING INTO THE MIXING PASSAGE, CHANNEL MEANS IN COMMUNICATION WITH THE SECONDARY FUEL DISCHARGE ORIFICE AND THE FUEL CHAMBER FOR CONVEYING FUEL TO THE SECONDARY ORIFICE UNDER THE INFLUENCE OF ASPIRATION IN THE MIXING PASSAGE, AND AN AIR BLEED FOR ADMITTING AIR INTO THE FUEL WELL FOR ADMIXING THE FUEL DISCHARGE THROUGH THE MAIN ORIFICE.