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:
Nov. 12, 2002
Filed:
Feb. 06, 2001
Applicant:
Inventors:
Kazutaka Suzuki, Kariya, JP;
Eizo Takahashi, Chiryu, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P 7/14 ;
U.S. Cl.
CPC ...
F01P 7/14 ;
Abstract
In a cooling device for an engine, having a motor-driven pump and a flow rate control valve, to obtain a predetermined discharge flow rate (circulating coolant amount) from the pump a pump duty is minimized while maintaining a water flow resistance as low as possible (maintaining a valve opening degree &thgr; as large as possible). Thereby, a value of an electric current flowing through the pump becomes smaller to decrease the energy consumption (power consumption).