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. 10, 1999
Filed:
Jan. 19, 1994
Applicant:
Inventors:
V Durga Rao, Bloomfield Hills, MI (US);
Daniel Michael Kabat, Oxford, MI (US);
Harry Arthur Cikanek, Northville, MI (US);
Assignee:
Ford Global Technologies, Inc., Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 9051 ; 123 9033 ; 123 906 ; 1231889 ;
Abstract
A low friction valve train actuating at least one valve in an internal combustion engine includes a cam shaft having at least one cam, a tappet contacting the cam and valve, the cam and valve having outer surfaces with an open porosity, a solid film lubricant impregnated and anchored in the open porosity, the solid film lubricant is stable to temperatures at about 700.degree. F. to retain a low coefficient of friction in an oil starved environment.