Liquid-fuel distributing means for internal combustion engines

Claim 1

IN A FUEL INJECTION PUMP FOR AN INTERNAL COMBUSTION ENGINE THE COMBINATION COMPRISING A CASING HAVING A LIQUID-FUEL INLET PORT COMMUNICATING WITH AN EXPANSIBLE PRESSURE ACCUMULATOR CHAMBER, A PORTED VALVE MOUNTED WITHIN THE CASING FOR ROTARY MOTION AND FORMED WITH SEATING FACES ON OPPOSITE SIDES THEREOF, A METERING BLOCK INCLUDING AT LEAST TWO OUTLET PORTS MOUNTED FOR MOVEMENT WITHIN THE CASING AND HAVING ONE SURFACE ADJACENT TO ONE SEATING FACE OF SAID VALVE AND SHAPED COMPLEMENTALLY THERETO, A FLANGED CAP SUPERPOSED ON SAID METERING BLOCK, MEANS DEFINING OPENINGS THEREIN IN COINCIDENCE WITH THE PORTS IN SAID BLOCK AND A DIAPHRAGM INTERPOSED BETWEEN SAID FLANGE CAP AND SAID BLOCK, SAID VALVE BEING DISPOSED BETWEEN SAID BLOCK AND ONE END OF THE CASING WITH ITS OTHER SEATING FACE IN CONTACT WITH SAID END OF THE CASING, RESILIENT MEANS DISPOSED WITHIN SAID CASING FOR URGING SAID METERING BLOCK TOWARD ONE END OF THE CASING TO MAINTAIN INTIMATE CONTACT BETWEEN THE CASING, THE VALVE AND THE METERING BLOCK, PLURAL METERING CHAMBERS IN SAID CASING HAVING ONE END OPENING ADJACENT TO THE SEATING FACES OF SAID VALVE WITH THE OTHER ENDS OF SAID CHAMBERS COMMUNICATING WITH A BORE, A PLUNGER IN SAID BORE, MEANS FOR IMPARTING MOTION TO SAID PORTED VALVE, THE VALVE BEING ADAPTED TO CONNECT TWO OF THE METERING CHAMBERS IN SAID CASING ALTERNATELY TO SAID FUEL INLET PORT AND OUTLET PORT ASSOCIATED WITH ANOTHER CHAMBER AND MEANS CONNECTED TO THE ACCUMULATOR CHAMBER FOR CAUSING THE PLUNGER TO RECIPROCATE WHEREBY A METERED QUANTITY OF LIQUID IS ALTERNATELY RECEIVED IN SAID METERING CHAMBERS AND EXPELLED THROUGH THE DISCHARGE PORT INTO SAID OTHER CHAMBER.