The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 14, 2018
Filed:
Nov. 07, 2007
Applicants:
Roman F. Kosiorek, Greenville, MI (US);
Terrance G. Cunningham, Cedar Springs, MI (US);
Inventors:
Roman F. Kosiorek, Greenville, MI (US);
Terrance G. Cunningham, Cedar Springs, MI (US);
Assignee:
DETROIT DIESEL CORPORATION, Detroit, MI (US);
Primary Examiner:
Int. Cl.
CPC ...
F02M 57/02 (2006.01); B23P 6/00 (2006.01); F02M 61/16 (2006.01); F02M 63/00 (2006.01);
U.S. Cl.
CPC ...
F02M 57/023 (2013.01); B23P 6/00 (2013.01); F02M 61/168 (2013.01); F02M 63/0015 (2013.01); F02M 2200/04 (2013.01); F02M 2200/8069 (2013.01); Y10T 29/49302 (2015.01);
Abstract
A method of refurbishing a fuel injector body valve seat. The method includes removing a poppet valve from the valve bore guide, machining the bore and valve seat to remove cavitation, machining to create an undercut a the stress riser, nitriding the valve bore guide and radiusing fuel passage to a sufficient depth to restore hardness thereto.