Electromagnetic unit fuel injector

Details Electromagnetic unit fuel injector Electromagnetic unit fuel injector

1977-09-12

1978-12-12

Blunk, Evon C.

Fluid sprinkling, spraying, and diffusing

Injection nozzle opened by relieving supply

123139AK, 123139E, 239585, F02M 4702, F02M 5500

Patent

active

041292545

ABSTRACT:
An electromagnetic unit fuel injector for use in a diesel engine includes a pump, in the form of a cam actuated plunger reciprocable in a bushing, to supply fuel at high pressure to a variable volume pressure accumulator chamber and through a flow control orifice to a control chamber in supply flow communication with a fuel injection nozzle assembly having a pressure actuated injection valve controlling the injected charge of fuel from the unit. Flow through the control orifice into the control chamber is selectively controlled by an electromagnetic valve assembly which also selectively controls flow from the control chamber through a drain orifice to a low pressure fuel return or drain line.

REFERENCES:
patent: 3006556 (1961-10-01), Shade et al.
patent: 3680782 (1972-08-01), Monpetit et al.
patent: 3777977 (1973-12-01), Regneault et al.

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