Liquid fuel pumping apparatus

Claim 1

A LIQUID FUEL PUMPING APPARATUS FOR SUPPLYING FUEL TO AN INTERNAL COMBUSTION ENGINE AND COMPRISING IN CONBINATION, A BODY PART, A ROTARY DISTRIBUTOR MOUNTED IN THE BODY PART AND ADAPTED TO BE DRIVEN IN TIMED RELATIONSHIP WITH AN ENGINE, A PRESSURE PUMP ROTOR, A RECIPROCABLE DISTRIBUTOR, A BORE FORMED IN SAID ROTOR, A RECIPROCABLE PLUNGER IN SAID BORE, CAM MEANS FOR IMPARTING INWARD MOVEMENT TO THE PLUNGER AS THE ROTOR ROTATES, A PASSAGE IN SAID DISTRIBUTOR IN COMMUNICATION WITH SAID BORE, A SHUTTLE MOVABLE IN SAID PASSAGE, THE END OF SAID SHUTTLE REMOTE FROM THE BORE SERVING IN PART TO DEFINE THE WORKING CHAMBER FOR AN INJECTION PUMP, A DELIVERY PASSAGE EXTENDING FROM SAID WORKING CHAMBER TO THE PERIPHERY OF THE DISTRIBUTOR, A PLURALITY OF ANGULARLY SPACED DELIVERY PORTS FORMED IN THE BODY PART AND WITH WHICH THE DELIVERY PASSAGE REGISTERS IN TURN AS THE DISTRIBUTOR ROTATES, A CYLINDER FORMED IN THE BODY PART, ONE END OF SAID CYLINDER BEING EXPOSED TO THE PERIPHERY OF THE DISTRIBUTOR, A PLURLAITY OF ANGULARLY SPACED INLET PASSAGES EXTENDING FROM SAID WORKING CHAMBER FOR COMMUNICATION WITH SAID ONE END OF THE CYLINDER IN TURN DURING THE TIME WHEN THE DELIVERY PASSAGE IS OUT OF REGISTER WITH THE DELIVERY PORTS, A METERING SHUTTLE SLIDABLE IN SAID CYLINDER, MEANS FOR MOVING SAID METERING SHUTTLE TOWARDS SAID ONE END OF THE CYLINDER WHILST AN INLET PASSAGE IS IN REGISTER THEREWITH, THEREBY TO DISPLACE FUEL FROM SAID ONE END OF THE CYLINDER TO SAID WORKING CHAMBER, AN ADJUSTABLE THROTTLE VALVE MOUNTED WITHIN THE BODY PART FOR CONTROLLING THE FLOW OF FUEL FROM A SOURCE TO SAID ONE END OF THE CYLINDER WHILST THE INLET PASSAGES ARE OUT OF REGISTER THEREWITH AND FOR CONTROLLING THE FLOW OF FUEL TO SAID BORE DURING THE TIME WHEN THE DELIVERY PASSAGE IS OUT OF REGISTER WITH THE DELIVERY PORTS.