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:
Aug. 17, 1999
Filed:
Sep. 24, 1997
Applicant:
Inventors:
Shinji Aoki, Kariya, JP;
Toshio Morikawa, Toyota, JP;
Hajime Ito, Kariya, JP;
Goro Uchida, Toyota, JP;
Yasushi Kato, Toyota, JP;
Norifumi Ban, Toyota, JP;
Assignee:
Denso Corporation, Kariya, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60H / ;
U.S. Cl.
CPC ...
237 / ; 126247 ; 122 26 ; 1231 / ;
Abstract
When a driver performs a steering operation with a small steering angle when a vehicle is stopped, a viscous clutch of a viscous heater is turned on after setting an idling rotational speed of an engine to a high value to prevent an engine stall. Further, when a driver performs the steering operation with a large steering angle when the vehicle is stopped, the viscous clutch is not turned on so that the viscous heater is not operated, thereby greatly reducing a driving load applied to the engine and a V-belt thereof.