Carburetor

Claim 1

IN A CARBURETOR FOR AN INTERNAL COMBUSTION ENGINE, A MIXTURE CONDUIT, A SOURCE OF FUEL, A THROTTLE VALVE IN SAID CONDUIT, AN IDLE FUEL SYSTEM FOR SUPPLYING FUEL TO SAID CONDUIT POSTERIOR TO SAID THROTTLE VALVE, SAID FUEL SYSTEM HAVING A FUEL AND AIR MIXTURE METERING ORIFICE AND AN AIR METERING ORIFICE, A FUEL PASSAGE FOR SUPPLYING FUEL FROM SAID FUEL SOURCE TO SAID FUEL AND AIR MIXTURE METERING ORIFICE, AN AIR PASSAGE UPSTREAM OF THE THROTTLE VALVE AND CONNECTED TO THE MIXTURE CONDUIT FOR SUPPLYING AIR TO SAID AIR METERING ORIFICE, A PASSAGE CONNECTING THE FUEL AND AIR MIXTURE METERING ORIFICE AND THE AIR METERING ORIFICE, MEANS RESPONSIVE TO SUCTION POSTERIOR OF SAID THROTTLE VALVE DURING ENGINE DECELERATION FOR REDUCING THE RATIO OF FUEL TO AIR FLOWING THROUGH SAID ORIFICES TO LEAN OUT THE FUEL AND AIR MIXTURE SUPPLIED TO THE ENGINE, SAID SUCTION RESPONSIVE MEANS COMPRISING A STEM EXTENDING THROUGH SAID MIXTURE AND AIR METERING ORIFICES RESPECTIVELY, SAID STEM HAVING SPACED MIXTURE AND AIR METERING PORTIONS RESPECTIVELY ADJACENT TO SAID MIXTURE AND AIR METERING ORIFICES FOR MOVEMENT INTO AND OUT OF THE RESPECTIVE MIXTURE AND AIR METERING ORIFICES UPON AXIAL MOVEMENT OF SAID STEM, AND A SUCTION MOTOR TO ACTUATE SAID STEM.