Apparatus and method for finishing fuel injector spray tips usin

Details Apparatus and method for finishing fuel injector spray tips usin Apparatus and method for finishing fuel injector spray tips usin

1984-07-13

1987-01-27

Pellinen, A. D.

Electric heating

Metal heating

Cutting or disintegrating

291567A, 72340, 2041291, 219 69E, 219 69R, 2395333, B23H 700, B23H 910, B21K 124, F02M 5500

Patent

active

046395687

ABSTRACT:
Apparatus and a method are provided to form the interior of a fuel injector spray tip by use of a cold forming punch to form a V-shaped spray tip interior configured to reduce fuel dribble and thereafter finishing the interior by use of an EDM electrode to form precision valve seat and fuel sack surfaces.

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Electrical Discharge Machining, by Jameson, Editor, pp. 128 & 129.
"EDM Speeds Fuel Injector Production", 11/1983.
"EDM Drills Them Small", Electrical Discharge Machining, 1st Edition, 11/1983, pp. 130-133.
"EDM-Center", by Geosger, 08/1981, pp. 10-14, of the EDM Digest.

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