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:
Mar. 04, 2025
Filed:
Mar. 26, 2020
Hitachi Construction Machinery Tierra Co., Ltd., Koka, JP;
Abstract
An upper revolving structure () of an electric hydraulic excavator () includes a revolving frame (), an operator's seat (), an electric motor (), a hydraulic pump () driven by the electric motor (), an oil tank (), and an exterior cover () disposed in the revolving frame () to cover electrical equipment including the electric motor () and hydraulic equipment including the hydraulic pump () and the oil tank (). A partitioning member () that is disposed in the revolving frame () to partition an inside of the exterior cover () into an electrical equipment room () and a hydraulic equipment room (). An electrical equipment cooling device () including an electrical equipment cooling fan () is disposed in the electrical equipment room (), and a hydraulic equipment cooling device () including a hydraulic equipment cooling fan () is disposed in the hydraulic equipment room ().