Electromagnetic unit fuel injector

Details Electromagnetic unit fuel injector Electromagnetic unit fuel injector

1983-09-06

1984-11-13

Gluck, Richard E.

Fluid sprinkling, spraying, and diffusing

Unitary injection nozzle and pump or accumulator plunger

239585, 123446, F02M 4700

Patent

active

044820941

ABSTRACT:
An electromagnetic unit fuel injector for use in a diesel engine includes a housing with a pump therein defined by an externally actuated plunger reciprocable in a bushing and defining therewith a pump chamber for the discharge of fuel to a spring biased, pressure actuated fuel injection nozzle. The pump chamber is also connected to a fuel chamber via a solenoid actuated, normally open, pressure balanced control valve controlled passage to permit the ingress and egress of fuel. The solenoid and control valve are located concentrically with respect to the plunger. During a pump stroke, the solenoid can be energized to move the valve in position to block flow from the pump chamber to the fuel chamber so as to allow the pressurization of fuel by the pump to effect discharge of fuel from the injection nozzle.

REFERENCES:
patent: 2681177 (1954-06-01), Hartwell
patent: 3481542 (1969-12-01), Huber
patent: 4129253 (1978-12-01), Bader et al.
patent: 4392612 (1983-07-01), Deckard et al.
patent: 4408718 (1983-10-01), Wich

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