Carburetor having fuel and air flow control means

Claim 1

A CARBURETOR COMPRISING A PAIR OF MIXTURE CONDUITS, A ROTATABLE SHAFT EXTENDING THROUGH SAID CONDUITS, AN AIR VALVE IN EACH CONDUIT SECURED TO SAID SHAFT, MEANS CONTROLLING SAID AIR VALVES WHEREBY THEIR ROTATIVE POSITION IS DETERMINED BY AND IS A MEASURE OF AIR FLOW THROUGH SAID CONDUITS, A THROTTLE VALVE IN EACH CONDUIT DOWNSTREAM OF SAID AIR VALVE, A FUEL BOWL, A PAIR OF FUEL PASSAGES EXTENDING FROM THE BOTTOM OF SAID BOWL TO SAID CONDUITS, FUEL METERING ORIFICES IN SAID FUEL PASSAGES AT THE JUNCTURE WITH THE BOTTOM OF SAID BOWL, A VERTICALLY RECIPROCABLE METERING ROD IN EACH OF SAID ORIFICES, A CAM SECURED TO AND ROTATABLE WITH SAID SHAFT BETWEEN SAID CONDUITS, SAID CAM HAVING DIAMETERICALLY OPPOSED ECONOMY AND POWER SCHEDULING PORTIONS, THE ROTATIVE POSITION OF SAID CAM BEING A MEASURE OF THE RATE OF AIR FLOW THROUGH SAID MIXTURE CONDUITS, AND A FUEL METERING CONTROL INCLUDING A CAM FOLLOWR PORTION BIFURCATED INTO ECONOMY AND POWER FOLLOWING ARMS RESPECTIVELY DISPOSED ON DIAMETRICALLY OPPOSITE SIDES OF SAID CAM ADJACENT SAID ECONOMY AND POWER SCHEDULING PORTIONS OF SAID CAM, A CARRIER PORTION SUPPORTED BY SAID CAM FOLLOWER PORTION, SAID METERING RODS BEING SUSPENDED FROM SAID CARRIED PORTION, MEANS MOUNTING SAID FUEL METERING CONTROL FOR PIVOTAL MOVEMENT IN A VERTICAL PLANE, SAID ECONOMY FOLLOWER ARM OF SAID CAM FOLLOWER PORTION BEING BIASED INTO CONTACT WITH SAID ECONOMY SCHEDULING PORTION OF SAID CEM, AND MEANS RESPONSIVE TO LOW VACUUM IN SAID CONDUITS DOWNSTREAM OF SAID THROTTLE VALVES AND ADAPTED TO BIAS SAID POWER FOLLOWER ARM OF SAID CAM FOLLOWER PORTION AGANIST SAID POWER SCHEDULING PORTION OF SAID CAM WHEREBY ROTATION OF SAID CAM IN ACCORDANCE WITH A CHANGE IN THE RATE OF AIR FLOW THROUGH SAID CONDUITS PIVOTS SAID FUEL METERING CONTROL TO RECIPROCATE SAID METERING RODS WITHIN SAID ORIFICES AND PROVIDE THE DESIRED ECONOMY AND POWER AIR-FUEL MIXTURE RATIOS.