Injector valve

Claim 1

A FUEL INJECTOR VALVE COMPRISING A VALVE BODY, NOZZLE MEANS REMOVABLY MOUNTED ON SAID VALVE BODY, SAID NOZZLE MEANS PROVIDING A POPPET SEAT AND BEING FORMED WITH INJECTOR OPENINGS THROUGH WHICH FUEL CAN BE EXPELLED FROM SAID VALVE, A POPPET WITHIN SAID VALVE BODY HAVING A FORWARD END PORTION ADAPTED TO ENGAGE SAID POPPET SEAT, SPRING MEANS BIASING SAID POPPET TO A CLOSED POSITION, MEANS FOR SUPPLYING FUEL UNDER PRESSURE TO SAID VALVE, SAID MEANS FOR SUPPLYING FUEL TO SAID VALVE COMPRISING TUBE MEANS EXTENDING AXIALLY THROUGH SAID RETAINER SLEEVE FOR DELIVERING FUEL TO THE AREA FORWARDLY THEREOF, SAID VALVE BODY DEFINING AN ACCUMULATOR CHAMBER FOR PRESSURE ACCUMULATION OF THE FUEL, A RETAINER SLEEVE MOUNTED IN SAID VALVE BODY GENERALLY CO-AXIAL WITH SAID POPPET SEAT, A RELATIVELY THIN-WALLED SLEEVE HAVING A FORWARD END TELESCOPICALLY DISPOSED AROUND THE TRAILING END OF SAID POPPET TO PERMIT RELATIVE AXIAL MOVEMENT THEREBETWEEN AND AN OPPOSITE END EXTENDING AROUND AND MOUNTED TO SAID RETAINER SLEEVE, SAID THIN-WALLED SLEEVE SUPPORTING SAID POPPET AND DEFINING THEREWITH A FLOW ANNULUS THROUGH WHICH FUEL CAN BE DELIVERED TO SAID ACCUMULATOR CHAMBER, SAID SUPPORTING SLEEVE GENERALLY AXIALLY ALIGNING SAID POPPET WITH SAID POPPET SEAT, AND FUEL BY-PASS MEANS COMMUNICATING WITH SAID TUBE MEANS INTERMEDIATE THE ENDS THEREOF, SAID BY-PASS MEANS COMMUNICATING WITH SAID ACCUMULATOR CHAMBER FOR DELIVERING FUEL DIRECTLY THERETO.