Pump

Claim 1

A HIGH PRESSURE PUMP COMPRISING A HOUSING HAVING AN AXIAL CENTER, A PLURALITY OF CYLINDERS FORMED INTEGRAL WITH SAID HOUSING AND SLIGHTLY PROJECTING THEREFROM AS PARTS OF RADIATING CYLINDER BLOCKS, SAID CYLINDERS BEING DISPOSED IN A SINGLE PLANE AND RADIATING FROM THE AXIAL CENTER OF SAID HOUSING, A PISTON DISPOSED IN EACH CYLINDER, AN INLET VALVE AND AN OUTLET VALVE FOR EACH CYLINDER IN EACH CYLINDER BLOCK, A CENTRALLY LOCATED DRIVE SHAFT HAVING CAM MEANS ENGAGING SAID PISTONS FOR RECIPROCATING SAID PISTONS IN RESPONSE TO ROTATION OF SAID SHAFT, AN ANNULAR INLT MANIFOLD IN SAID HOUSING AROUND SAID AXIAL CENTER ON ONE SIDE OF THE PLANE OF SAID PISTONS, RADIALLY RADIATING INLET PASSAGES IN SAID HOUSING AND OPENING OUTWARDLY THROUGH SAID CYLINDER BLOCKS INTO SAID INLET VALVES; EACH OF SAID INLET VALVES INCLUDING A RADIAL PASSAGE EXTENDING FROM AND IN ALIGNMENT WITH A RESPECTIVE ONE OF SAID INLET PASSAGES THROUGH THE RESPECTIVE ONE OF SAID CYLINDER BLOCKS TO THE EXTERIOR THEREOF, AND AXIAL PASSAGE OPENING INTO AN OUTER PORTION OF A RESPECTIVE CYLINDER AND INTO AN INTERMEDIATE PART OF SAID RADIAL PASSAGE, A VALVE SEAT AT THE INTERSECTION OF SAID RADIAL PASSAGE AND THE RESPECTIVE INLET PASSAGE, A VALVE MEMBER, A SPRING ENGAGING SAID VALVE MEMBER TO NORMALLY HOLD SAID VALVE MEMBER ON SAID VALVE SEAT, AND A REMOVABLE PLUG CLOSING THE OUTER END OF SAID RADIAL PASSAGE AND RESTRAINING SAID SPRING AGAINST OUTWARD MOVEMENT, SAID PLUG PROVIDING ACCESS TO SAID VALVE SEAT, SAID VALVE MEMBER AND SAID SPRING FOR REPLACEMENT AND REPAIR, AN ANNULAR OUTLET MANIFOLD IN SAID HOUSING AROUND SAID AXIAL CENTER ON ONE SIDE OF THE PLANE OF SAID PISTONS, RADIATING OUTLET PAS-