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. 14, 1998
Filed:
Jan. 29, 1997
Kazutaka Suzuki, Kariya, JP;
Yasutoshi Yamanaka, Kariya, JP;
Yoshimitsu Inoue, Toyoake, JP;
Hiroyuki Fukunaga, Nishio, JP;
Denso Corporation, Kariya, JP;
Nippon Soken, Inc., Nishio, JP;
Abstract
According to the present invention, the cooling apparatus is equipped with a thermostat for opening or closing a water passage between a radiator and a water-cooled engine and a cooling water passage switching valve for switching a water introducing passage for introducing the cooling water around a thermosensitive member of the thermostat. When the engine is in a high-load operating condition and when the temperature of the cooling water is equal to or higher than a predetermined temperature, the cooling water immediately after having flowed out of the water-cooled engine flows into around the thermosensitive member of the thermostat by the operation of the cooling water passage switching valve. As a result, the thermostat is operated in response to the temperature of the high temperature cooling water having flowed out of the water-cooled engine, and the set temperature of the cooling water by the thermostat can be shifted to a lower temperature. In this way, it is possible to prevent preferably an excessive rise in the temperature of the cooling water not only when the engine is in a high-load operating condition but also when the engine is in a state of hot soak such as in idling after the vehicle has travelled on an upward slope with a low speed.