Method for manufacturing an electromagnetic fuel injection valve

Details Method for manufacturing an electromagnetic fuel injection valve Method for manufacturing an electromagnetic fuel injection valve

1985-01-10

1986-07-29

Goldberg, Howard N.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29404, 29407, 239 1, 239585, 239600, 25112918, B21D 5300, B23Q 1700

Patent

active

046024131

ABSTRACT:
An electromagnetic fuel injection valve and a process for the adjustment of the armature stroke (H) of the fuel injection valve is proposed, which serves to inject fuel under low pressure into the suction pipe of an internal combustion engine. The fuel injection valve surrounds an armature guided in a valve housing. This armature is tightly fastened to a movable valve section which cooperates with a fixed valve seat in a nozzle body supported in a nozzle carrier. The armature stroke can be adjusted in an assembled condition of the fuel injection valve by moving the nozzle body in an axial direction. For this the stroke (H.sub.eff) is measured by an odometrical system (distance sensing system) in the assembled condition of the fuel injection valve while the electromagnetic system is excited and the fixed valve seat provided on the nozzle body is displaced with the aid of a pressing tool by the difference between the measured stroke (H.sub.eff) and the desired armature stroke (H).

REFERENCES:
patent: 2642047 (1953-06-01), Johnson
patent: 2870756 (1959-01-01), Dayton
patent: 2970467 (1961-02-01), Pettibone
patent: 3107417 (1963-10-01), Jaquish, Jr. et al.
patent: 3120053 (1964-02-01), Lewis
patent: 3800600 (1974-04-01), Chapin
patent: 4213233 (1980-07-01), Brakebill

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