Groove means in a fuel injector valve seat

Details Groove means in a fuel injector valve seat Groove means in a fuel injector valve seat

1997-10-07

2000-03-14

Hughes, S. Thomas

Metal working

Method of mechanical manufacture

Valve or choke making

2988844, B23P 1300

Patent

active

060355328

ABSTRACT:
A method of manufacturing a conical valve seat, wherein the valve seat surface is placed in alignment with a cutting edge of a pattern impression pin, a predetermined amount of pressure is applied to the valve seat to move the seat surface relative to the cutting edge of a pattern impression pin to form a groove in the seat surface, hardening the seat member, and then grinding a conical surface on the seat surface to finish it.

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patent: 5565832 (1996-10-01), Haller et al.
patent: 5970614 (1999-10-01), Adachi et al.

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