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:
Dec. 09, 1997
Filed:
May. 24, 1996
Applicant:
Inventor:
Larry V Reatherford, Clarkston, MI (US);
Assignee:
Ford Motor Company, Dearborn, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 906 ; 123 9034 ; 74567 ;
Abstract
A roller camshaft for actuating cylinder poppet valves of an internal combustion engine includes a carrier shaft adapted for rotation by an engine crankshaft. The camshaft may be equipped with more than one cam lobe, with each lobe having a base circle portion, an acceleration ramp, a deceleration ramp, a tappet contacting roller housed in a socket positioned at a nose of the lobe, a leading transition ramp located adjacent both the acceleration ramp and the roller, and a trailing transition ramp located adjacent both the deceleration ramp and the roller.