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:
Jan. 24, 2017
Filed:
Dec. 19, 2012
Hino Motors, Ltd., Hino-shi, Tokyo, JP;
Takashi Ishimori, Tokyo, JP;
HINO MOTORS, LTD., Hino-shi, JP;
Abstract
A cooling-water temperature is detected at startup of an engine. When the detected temperature falls below a set water-temperature, a water pump is stopped independently of a normal control on rotational frequency of the water pump depending on engine operational state. Calculated is a total heat amount required for raising the current water-temperature to the set water-temperature, and integrated is an heat amount lost by the cooling water from the engine from the startup. When an integrated value reaches the total heat amount, the water pump is operated for a required time to uniformize temperature distribution of the cooling water. Then, the cooling-water temperature is detected again. If the detected temperature is still below the set water-temperature, the same control is repeated; if the detected temperature is equal to or greater than the set water-temperature, the normal control is restored.