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:
Oct. 12, 2021
Filed:
Jul. 23, 2018
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Hitachi Construction Machinery Co., Ltd., Tokyo, JP;
Abstract
An engine cooling system () includes an engine (), an engine cooling pipe line (), an engine water pump () and an engine radiator (). An electricity storage device cooling system () includes an electricity storage device (), an electricity storage device cooling pipe line (), an electricity storage device water pump () and an electricity storage device radiator (). Different heat-transfer media (engine cooling water and electricity storage device cooling water) flow respectively in the engine cooling system () and the electricity storage device cooling system (). Further, a heating heat exchanger () is provided in the halfway of the engine cooling pipe line () and in the halfway of the electricity storage device cooling pipe line () for performing heat exchange between the engine cooling water and the electricity storage device cooling water.