Liquid fuel pumps

Claim 1

A FUEL INJECTION PUMP FOR SUPPLYING FUEL TO AN INTERNAL COMBUSTION ENGINE, COMPRISING A BODY HAVING A CYLINDRICAL BORE EXTENDING LONGITUDINALLY THEREOF, A ROTARY DISTRIBUTOR LOCATED IN SAID BORE, A ROTOR AT ONE END OF SAID DISTRIBUTOR AND ROTATABLE THEREWITH, MEANS FOR SUPPLYING FUEL UNDER PRESSURE AT THE OTHER END OF SAID DISTRIBUTOR AND HAVING AN INLET AND AN OUTLET, SAID DISTRIBUTOR BEING PROVIDED WITH AN AXIAL PASSAGE, A PLURALITY OF EQUIANGULARLY SPACED FUEL INLET PASSAGES AND A DELIVERY PASSAGE SPACED AXIALLY FROM SAID INLET PASSAGES IN THE DIRECTION OF SAID FUEL SUPPLYING MEANS WITH SAID FUEL INLET PASSAGES AND DELIVERY PASSAGE EXTENDING OUTWARDLY FROM SAID AXIAL PASSAGE TO THE PERIPHERY OF SAID DISTRIBUTOR, SAID BODY HAVING A FUEL INLET PORT COMMUNICATING WITH SAID OUTLET OF SAID FUEL SUPPLYING MEANS AND A PLURALITY OF EQUIANGULARLY SPACED DELIVERY PORTS ADAPTED TO BE PLACED INTO REGISTRY IN TURN SAID FUEL INLET PASSAGES AND SAID DELIVERY PASSAGE, RESPECTIVELY, UPON ROTATION OF SAID DISTRIBUTOR, THE RELATIVE ANGULAR RELATIONSHIP OF SAID DELIVERY PORTS WITH RESPECT TO SAID INLET PASSAGES BEING SUCH THAT SAID AXIAL PASSAGE COMMUNICATES WITH A DELIVERY PORT VIA SAID DELIVERY PASSAGE AT ALL TIMES EXCEPT WHEN SAID AXIAL PASSAGE COMMUNICATES WITH SAID INLET PORT THROUGH AN INLET PASSAGE, SAID ROTOR HAVING A TRANSVERSE BORE COMMMUNICATING WITH SAID AXIAL PASSAGE, AT LEAST ONE PLUNGER MOUNTED IN SAID TRANSVERSE BORE, AN ANNULAR CAM SURROUNDING SAID ROTOR WITH SAID PLUNGER BEING MOVED OUTWARDLY AS PERMITTED BY SAID CAM BY FUEL UNDER PRESSURE WHEN SAID INLET PORT IS IN REGISTRY WITH AN INLET PASSAGE, SAID CAM BEING PROVIDED WITH SURFACES COOPERABLE WITH SAID PLUNGER FOR MOVING SAID PLUNGER INWARDLY UPON ROTATION OF SAID ROTOR WHEREBY THE INWARD MOVEMENT OF SAID PLUNGER FORCES FUEL INTO SAID AXIAL PASSAGE AND THENCE THROUGH EITHER THE INLET PORT OR ONE OF THE DELIVERY PORTS DEPENDENT UPON THE ANGULAR POSITION OF THE ROTOR, AND MEANS OPERABLY CONNECTED WITH SAID CAM FOR ADJUSTING THE ANGULAR POSITION OF THE CAM TO DETERMINE THE PROPORTIONS OF FUEL INTRODUCED THROUGH SAID INLET PORT AND DELIVERY PORTS WHEN SAID PLUNGER MOVES INWARDLY.