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:
Apr. 30, 2013
Filed:
Jul. 10, 2009
Applicants:
Michael H. Carlson, Madison Heights, MI (US);
George T Washburn, Royal Oak, MI (US);
Inventors:
Michael H. Carlson, Madison Heights, MI (US);
George T Washburn, Royal Oak, MI (US);
Assignee:
GM Global Technology Operations LLC, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P 7/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
An engine cooling system for a vehicle, and method of operation, includes both an engine driven main coolant pump that may be disengaged by a clutch and an electrically driven auxiliary coolant pump, where each can be used separately or they can be used together to control the amount of coolant flow through the engine cooling system.