Fuel system

Claim 1

A FUEL SYSTEM FOR A GASOLINE FUELED, SPARK-IGNITED INTERNAL COMBUSTION ENGINE COMPRISING: FUEL SUPPLY MEANS: LIQUID FUEL HEATING MEANS COMPRISING MEANS FOR RECEIVING FUEL FROM SAID FUEL SUPPLY MEANS AND HEATING, VAPORIZING, AND DISCHARGING IT, PRESSURE REGULATING MEANS HAVING AN INLET AND AN OUTLET, SAID INLET BEING COUPLED TO THE DISCHARGE OF SAID FUEL HEATING MEANS, AND INCLUDING MEANS FOR PROVIDING FUEL VAPOR AT SAID OUTLET AT A SELECTED PRESSURE IN THE RANGE OF .2 TO 2 PSI, A VAPOR-FUEL AIR CARBURETOR COMPRISING: A VAPOR CHAMBER HAVING AN INLET CONNECTED TO THE OUTLET OF SAID PRESSURE REGULATOR AND HAVING A VAPOR OUTLET, AN ELONGATED CYLINDER HAVING AN OPENING AT ONE END COUPLED TO SAID VAPOR OUTLET OF SAID VAPOR CHAMBER AND, HAVING AT LEAST ONE OPENING IN A SIDE WALL THEREOF, A CYLINDRICAL PISTON POSITIONED WITHIN SAID CYLINDER AND COMPRISING: A CYLINDRICAL BODY HAVING A HOLLOW INTERIOR AND AN OPENING AT A FIRST END COOPERATION WITH SAID OPENING IN SAID CYLINDER AND VAPOR OUTLET OF SAID VAPOR CHAMBER, A SLOT EXTENDING THROUGH THE WALL OF SAID CYLINDRICAL BODY, SAID SLOT POSITIONED ALONG A LONGITUDINAL DIMENSION OF SAID PISTON AND ADAPTED TO COOPERATE WITH SAID OPENING IN SAID SIDE WALL OF SAID CYLINDER, WHEREBY THE PASSAGEWAY BETWEEN THE INTERIOR OF SAID PISTON THROUGH SAID CYLINDER TO THE OUTSIDE OF SAID CYLINDER VARIES AS SAID PISTON IS MOVED LONGITUDINALLY WITHIN SAID CYLINDER, A PISTONN-OPERATING ARM EXTENDING LONGITUDINALLY FROM A SECOND AND OPPOSITE END OF SAID PISTON, AN AIR-VAPOR MIXING CHAMBER SURROUNDING SAID CYLINDER AND EXTENDING BEYOND THE END OF SAID CYLINDER, OPPOSITE TO THE END OF OPENING IN SAID CYLINDER, AND SAID MIXING CHAMBER HAVING A PLURALITY OF OUTER OPENINGS THROUGH WHICH AIR IS ADMITTED INTO SAID MIXING CHAMBER AND AN OUTLET OPPOSITE SAID SECOND END OF SAID PISTON THROUGH WHICH LAST-NAMED OUTLET A VAPOR-AIR FUEL MIXTURE IS PROVIDED TO SAID ENGINE, VALVE MEANS COMPRISING: CLOSURE MEANS CONNECTED TO SAID OPERATING ARM OF SAID PISTON AND RESPONSIVE TO VACCUM APPLIED BY SAID ENGINE FOR VARIABLY OPENING SAID OUTLET OF SAID MIXING CHAMBER AND SIMULTANEOUSLY VARYING THE PASSAGEWAY BETWEEN THE INTERIOR OF SAID PISTON AND SAID MIXING CHAMBER, AND SPRING BIASING MEANS FOR APPLYING A SELECTED CLOSING PRESSURE TO SAID CLOSURE MEANS, WHEREBY THE DEGREE OF OPENING OF SAID VALVE MEANS IS A FUNCTION OF THE DIFFERENTIAL FORCE BETWEEN SAID VACCUM AND SAID SPRING BIASING MEANS, WHEREBY AN ENGINE BEING SUPPLIED BY SAID CARBURATOR IS ACCELERATED AND A GREATER VACCUM IS DRAWN, SAID VALVE MEANS WILL BE PROPORTIONALLY OPENED BY A GREATER AMOUNT.