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. 13, 2001
Filed:
Jan. 24, 2000
Applicant:
Inventors:
Kazutaka Suzuki, Kariya, JP;
Eizou Takahashi, Chiryu, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F01P 7/14 ;
U.S. Cl.
CPC ...
F01P 7/14 ;
Abstract
Discharge flow rate of an electric pump is controlled such that a temperature difference between a coolant temperature at a coolant outlet of an engine and a coolant temperature at a coolant inlet of the engine is maintained to be a predetermined value &Dgr;T. Accordingly, the discharge flow rate decreases as the engine load decreases. Therefore, the pump work is reduced, and the temperature distribution of the engine is reduced. Accordingly, the engine durability is improved while the thermal distortion of the engine is prevented and the fuel economy is improved.