Injection control valve for a fuel injection system in an intern

Details Injection control valve for a fuel injection system in an intern Injection control valve for a fuel injection system in an intern

1989-11-02

1990-11-20

Rosenthal, Arnold

Valves and valve actuation

Electrically actuated valve

Including solenoid

25112906, 123506, F16K 3106

Patent

active

049712900

ABSTRACT:
In the embodiments of an injection control valve for the fuel injection of an internal combustion engine described in the specification, an electric actuating device controls a pilot valve which has a sealing surface cooperating with a sealing surface on a valve member in the region of a compression chamber which communicates with a fuel injection pump. Separation of the pilot valve from the valve member when permitted by the actuating device produces a gap between the sealing surfaces so that those sealing surfaces are exposed to the pressure of the fuel in the compression chamber. The fuel pressure acts on the exposed surfaces to enlarge the gap between them, thereby opening a pressure-relieving outlet from the compression chamber.

REFERENCES:
patent: 4176822 (1979-12-01), Chadwick
patent: 4750514 (1988-06-01), Omori et al.

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