Apparatus and method for finishing fuel injector spray tips using EDM
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United States of America Patent
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-
Jan 27, 1987
Grant Date -
N/A
app pub date -
Jul 13, 1984
filing date -
Jul 13, 1984
priority date (Note) -
Expired
status (Latency Note)
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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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