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:
Jul. 12, 1994
Filed:
Dec. 22, 1992
Applicant:
Inventors:
Thaddeus Schroeder, Rochester Hills, MI (US);
Rassem R Henry, Clinton Township, Macomb County, MI (US);
Bruno P Lequesne, Troy, MI (US);
Balarama V Murty, West Bloomfield, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01L / ;
U.S. Cl.
CPC ...
123 9011 ; 123 9015 ; 123 9017 ; 25112905 ; 25112911 ;
Abstract
Each valve of an internal combustion engine is driven by a separate rotary electric motor. A cam mechanism for the valves comprises a cylindrical cam in line with the motor axis and the valve stem, the mechanism having inner and outer cylinders, one cylinder rotating with the motor and carrying a cam and the other containing a cam follower and reciprocating with the valve.