Fuel injector

Details Fuel injector Fuel injector

1990-11-05

1992-05-05

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

2395533, 23953312, F02M 6112

Patent

active

051100541

ABSTRACT:
A fuel injector for supplying fuel to an engine has an elongated body in which is defined a bore at one end of which is formed a seating. Located with clearance within the bore is a fuel pressure actuated elongated valve member which at one end is shaped for co-operation with the seating. At its other end the valve member is guided for movement by a guide bush which is able to move radially to a limited extent in the body. Between the guide bush and the seating the valve member has an enlargement which co-operates with the wall of the bore to ensure that the valve member remains concentric with the seating as it moves away from the seating. The guide bush is conveniently formed by an outer bush and an inner bush with the inner bush able to move axially relative to the outer bush. The fuel pressure at the inlet of the injector acts on the inner bush to assist the initial movement of the valve member away from the seating.

REFERENCES:
patent: 4071197 (1978-01-01), Bailey et al.
patent: 4941613 (1990-07-01), Hardy et al.

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