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.

Date of Patent:
Dec. 30, 2003

Filed:

Jul. 22, 2002
Applicant:
Inventors:

Keith E. Liederman, Brighton, MI (US);

Matti K. Vint, Canton, MI (US);

Joseph V. Bejster, Dearborn, MI (US);

Davide F. Piccirilli, Livonia, MI (US);

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01P 5/10 ;
U.S. Cl.
CPC ...
F01P 5/10 ;
Abstract

An engine cooling system and method that will allow an engine water pump to be driven independently of the engine speed. The engine water pump is driven by the engine crankshaft, but includes an electronically controllable pump clutch between the water pump and the crankshaft. A control module electronically controls the engagement of the pump clutch based upon engine and vehicle operating conditions.


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