Fuel supply system

Claim 1

A FUEL SUPPLY SYSTEM FOR A COMBUSTION ENGINE HAVING AN AIR DUCT COMPRISING, A CONDUIT FOR SUPPLYING FUEL TO THE ENGINE, METERING MEANS IN SAID CONDUIT, A CONTROL VALVE IN SAID CONDUIT DOWNSTREAM OF SAID METERING MEANS, FIRST AND SECOND FUEL CHAMBERS, A PRESSURE RESPONSIVE MOVABLE WALL OPERATIVELY CONNECTED TO SAID CONTROL VALVE AND DISPOSED TO SEPARATE SAID FUEL CHAMBERS, MEANS FOR COMMUNICATING FUEL FROM SAID CONDUIT DOWNSTREAM OF SAID CONTROL VALVE TO SAID FIRST FUEL CHAMBER, PASSAGE MEANS CONNECTING SAID CONDUIT INTERMEDIATE SAID METERING MEANS AND SAID CONTRL VALVE TO SAID SECOND FUEL CHAMBER, A CALIBRATED PASSAGE CONNECTING SAID FIRST AND SECOND FUEL CHAMBERS, A SERVO VALVE CONTROLLING THE FLOW THROUGH SAID PASSAGE MEANS, A HOUSING, FIRST AND SECOND AIR CHAMBERS FORMED IN SAID HOUSING, METERED AND UNMETERED FUEL CHAMBERS FORMED IN SAID HOUSING, FIRST AND SECOND PRESSURE RESPONSIVE MOVABLE WALLS RESPECTIVELY SEPARATING SAID AIR CHAMBERS AND SAID METERED AND UNMETERED FUEL CHAMBERS, RIGID WALL MEANS IN SAID HOUSING SEPARATING SAID SECOND AIR CHAMBER FROM SAID UNMETERED FUEL CHAMBER, A BORE IN SAID RIGID WALL MEANS, A BRUSHING IN SAID FIRST AIR CHAMBER HAVING A ONE WAY CONNECTION WITH SAID FIRST MOVABLE WALL, A PLURALITY OF RADIALLY EXTENDING GROOVES OF DIFFERENT DEPTHS FORMED IN SAID BUSHING, AN APERTURE FORMED IN SAID FIRST MOVABLE WALL, A ROD RECIPROCABLY MOUNTED IN SAID BORE, SAID BUSHING, AND SAID APERTURE AND OPERATIVELY CONNECTED AT ONE END TO SAID SECOND MOVABLE WALL, SIAD ROD BEING FORMED AT THE OTHER END THEREOF WITH A TURNED OVER PORTION ADAPTED FOR SELECTIVE ENGAGEMENT IN ONE OF THE GROOVES IN SAID BUSHING, MEANS OPERATIVELY CONNECTING SAID SECOND MOVABLE WALL TO SAID SERVO VALVE, MEANS FOR CREATING A PRESSURE DIFFERENTIAL AT SPACED POINTS IN SAID AIR DUCT, MEANS RESPECTIVELY CONNECTING SAID FIRST AND SECOND AIR CHAMBERS TO SAID SPACED POINTS, MEANS CONNECTING SAID UNMETERED FUEL CHAMBER TO SAID CONDUIT UPSTREAM OF SAID METERING MEANS AND MEANS COMMUNICATING FUEL FROM SAID CONDUIT DOWNSTREAM OF SAID METERING MEANS TO SAID METERED FUEL CHAMBER.