F - Mech Eng,Light,Heat,Weapons – 02 – M
Patent
F - Mech Eng,Light,Heat,Weapons
02
M
123/117
F02M 47/02 (2006.01) F02M 57/02 (2006.01) F02M 59/32 (2006.01) F02M 59/36 (2006.01) F02M 61/20 (2006.01)
Patent
CA 1198639
ABSTRACT DOUBLE DUMP SINGLE SOLENOID UNIT INJECTOR A cam driven fuel injector comprising: a body defin- ing a bore; a driven or pumping piston reciprocatively situated with the bore; a metering piston reciprocatively positioned within the bore remote from the pumping pis- ton; and a metering chamber defined in the bore below the metering piston. A spring is situated within a cavity or spring cage remote from the bore and a nozzle extends into the spring cage in biasing engagement with the spring to urge it to a closed position during non- injecting periods. The injector further including means for dumping the fuel within the metering chamber to the supply through the spring cage in correspondence with the motion of the metering piston; and for stabilizing the pressure force exerted on the nozzle, during the dumping portion of operation, by the fuel within the spring cage with the pressure force exerted on the nozzle.
424225
Allied Corporation
Macrae & Co.
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