Projection welded needle guide

Details Projection welded needle guide Projection welded needle guide

1993-06-21

1995-01-17

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Fluid pressure responsive discharge modifier* or flow...

Fuel injector or burner

219 93, B23K 1300

Patent

active

053819632

ABSTRACT:
Projection welding is used to join a needle guide member and a valve seat member together preparatory to their assembly into the nozzle of a fuel injector. Various embodiments are disclosed, including various ways for creating the projections. In the preferred embodiment the projections on the end face of the guide member are made my forming a small holes in the frustoconical surface of the guide plate. As the tool is used to form the small holes in the guide plate, the material of the guide plate is displaced creating small projections from the frustoconial guide surface.

REFERENCES:
patent: 1872394 (1932-08-01), Bleicher
patent: 1977567 (1934-10-01), Eksergian
patent: 2400683 (1946-05-01), Burnett
patent: 3598952 (1971-08-01), Roberson
patent: 4495397 (1985-01-01), Opprecht et al.
patent: 5127156 (1992-07-01), Yokoyama et al.

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