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:
Jun. 30, 2020
Filed:
Mar. 28, 2018
Applicant:
Komatsu Ltd., Tokyo, JP;
Inventors:
Sohei Iwamoto, Tokyo, JP;
Yasuhiro Kamoshida, Tokyo, JP;
Makoto Watanabe, Tokyo, JP;
Makoto Nobayashi, Tokyo, JP;
Assignee:
Komatsu Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F01P 7/16 (2006.01); F01P 5/10 (2006.01); F01P 7/14 (2006.01);
U.S. Cl.
CPC ...
F01P 7/161 (2013.01); F01P 5/10 (2013.01); F01P 7/16 (2013.01); F01P 2007/146 (2013.01);
Abstract
Provided is an engine cooling device in which a flow passage switching part, which is provided between an outlet (EFb) of a cooling flow passage (EF) and a radiator and between the outlet (EFb) of the cooling flow passage (EF) and a pump, has valves that perform switching to a radiator connection flow passage or a bypass flow passage according to a temperature of a coolant (W), and a sleeve that is connected in parallel to the valves and is configured to circulate the coolant (W) to both the bypass flow passage and the radiator connection flow passage.