Electromagnetic fuel injector

Details Electromagnetic fuel injector Electromagnetic fuel injector

1985-09-25

1987-04-28

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Including valve means in flow line

Reciprocating

2395339, 25112916, 267170, B05B 130, F02M 6120, F16K 3102, F16F 106

Patent

active

046607706

ABSTRACT:
An electromagnetically-actuated fuel injector of the type having a spring-biased flat armature and a ball valve element is provided with an improved arrangement for preventing wobble or flutter of the armature, particularly during operation. The armature and ball valve are urged to the closed position by a helical coil spring coaxially aligned with and acting in compression against the armature. The end of the spring in engagement with the armature is modified or formed such that it includes a portion which is inclined axially from a plane normal to the axis of the armature so as to concentrate most of the axial spring force at the location where it engages the armature. As that location is to one side of the axis of the armature, the remote, or opposite, edge of the armature forms a pivot with a stationary part of the injector and reduces or eliminates armature wobble.

REFERENCES:
patent: 1960709 (1934-05-01), Olenick
patent: 4354640 (1982-10-01), Hans
patent: 4390130 (1983-06-01), Linssen et al.
patent: 4394973 (1983-07-01), Sauer et al.
patent: 4556028 (1985-12-01), Wietschorke et al.

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