Fuel supplying mechanism

Claim 1

IN A FUEL INJECTION PUMP OF THE TYPE HAVING A HOUSING WITH WALLS DEFINING A DRIVE COMPARTMENT AND A BORE WITH A PUMPING CHAMBER AT ONE END THEREOF, A DRIVE SHAFT ROTATABLY MOUNTED IN AXIALLY SPACED WALLS OF SAID DRIVE COMPARTMENT AND A CAM PORTION ON SAID SHAFT DISPOSED IN SAID DRIVE COMPARTMENT INTERMEDIATE SAID WALLS, THE COMBINATION COMPRISING: A FUEL SUPPLY CHAMBER WITHIN SAID HOUSING IN FREE FLOW FLUID COMMUNICATION WITH SAID DRIVE COMPARTMENT WHEREBY FUEL LUBRICATES PUMP PARTS DISPOSED WITHIN SAID SUPPLY CHAMBER AND DRIVE COMPARTMENT, A PLUNGER HAVING A CYLINDRICAL PUMPING AND DISTRIBUTING PORTION RECIPROCABLY AND ROTATABLY DISPOSED IN SAID BORE FOR PUMPING AND DISTRIBUTING FUEL, A CYLINDRICAL FUEL INLET PORTION ON SAID PLUNGER AND DISPOSED WITHIN SAID FUEL SUPPLY CHAMBER, THE DIAMETER OF SAID INLET PORTION BEING GREATER THAN SAID PUMPING AND DISTRIBUTING PORTION, A CONTROL SLEEVE SURROUNDING SAID INLET PORTION, INLET PORTS IN SAID SLEEVE AND INLET PORTION, RESPECTIVELY, AN INLET PASSAGE IN SAID PLUNGER CONNECTING SAID PUMPING CHAMBER IN FREE FUEL FLOW COMMUNICATION WITH AN INLET PORT IN SAID INLET PORTION, THRUST TRANSMITTING MEANS INTERMEDIATE SAID CAM PORTION AND PLUNGER FOR RECIPROCATING THE LATTER UPON ROTATION OF SAID SHAFT, AND MEANS DRIVEN BY SAID SHAFT FOR ROTATING SAID PLUNGER TO DISTRIBUTE PUMPED FUEL AND CYCLICALLY BRING SAID INLET PORTS IN SAID INLET PORTION AND SLEEVE INTO REGISTRATION WITH ONE ANOTHER.