Combined bore seat face grinding, EDM and lapping method for finishing fuel injector nozzle bodies

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4721839
SERIAL NO

06866000

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A combined grinding and EDM apparatus has an indexable rotary turret with four work heads secured thereon to locate a pair of nozzle body blanks with their longitudinal axes in spaced parallelism; and either three or four compound cross and longitudinal slide assemblies carrying grinding tools, lapping tools or non-contact machining tools which work on the blanks to machine the face and to form a valve guide bore and a valve seat shaped as a frustrum of a cone whose axis is concentric with the bore, the valve seat cone surface having a small end diameter to large end diameter ratio in the order of 1-50.

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Patent Owner(s)

  • EX-CELL-O CORPORATION

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Check, John M Chelsea, MI 12 121
Dzewaltowski, Victor F Springfield, VT 12 63
Halvorsen, James Springfield, VT 2 18

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