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:
Jun. 09, 2009
Filed:
Jan. 17, 2006
Applicants:
Eric Ralph Holm, Brighton, MI (US);
Jason Thomas Davis, Williamston, MI (US);
Inventors:
Eric Ralph Holm, Brighton, MI (US);
Jason Thomas Davis, Williamston, MI (US);
Assignee:
GM Global Technology Operations, Inc., Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 11/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of protecting an intake manifold of an engine of a hybrid propulsion system including an electric motor comprises detecting a reverse rotation of an engine. A fuel injector of the engine that is rotating in reverse is commanded to cease operation. A spark plug of the engine that is rotating in reverse is commanded to cease operation. The ceasing of reverse rotation of the engine is then confirmed.