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:
Jul. 03, 2018
Filed:
Apr. 23, 2013
Tbk Co., Ltd., Machida-shi Tokyo, JP;
Hirotada Yoshitani, Yamato, JP;
Takeshi Hoji, Sagamihara, JP;
TBK CO., LTD., Tokyo, JP;
Abstract
An engine cooling device includes a first supply pump driven by an engine, a second supply pump driven by an electric motor, a first fluid path switching valve, a temperature detector, a revolution speed detector that detects the revolution speed of the engine, and a controller that controls the actuation of the electric motor and the fluid path switching valve. When the temperature of the engine detected by the temperature detector (engine cooling water temperature) is less than a first predetermined temperature, the controller performs control to restrict the supply of the cooling fluid from the first supply pump to the engine by switching the fluid path switching valve to a restricted state, and to supply the cooling fluid from the second supply pump to the engine by performing control to drive the electric motor.