Low leakage fuel injector

Details Low leakage fuel injector Low leakage fuel injector

1981-07-31

1983-09-20

Love, John J.

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

Plunger interconnected or mounted valve

239 92, F02M 4702

Patent

active

044050828

ABSTRACT:
A diesel fuel injector having two separate annular or annulus-to-annulus dumps for providing a variable and a fixed orifice rapidly and controllably terminating injection and for controlling the impact velocity of the injector's intensifier piston against a mating stop. The injector further includes a middle chamber that is always connected to a low pressure vent to permit the collection and diversion of leakage fuel away from the middle chamber. The intensifier piston includes an upper member that is received within a stepped bore. The intensifier piston is loosely received within a lower member to permit relative motion therebetween for preventing the gall-up of the intensifier piston against the walls of the cooperating stepped bore.

REFERENCES:
patent: 2279010 (1942-04-01), Nichols
patent: 2793077 (1957-05-01), Bovard
patent: 3083912 (1963-04-01), Shallenberg

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