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. 03, 2026
Filed:
Nov. 25, 2021
Hitachi, Ltd., Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The rotating electric machine includes a stator having a stator core around which a plurality of coils are wound; a rotor supported to be rotatable relative to the stator with a predetermined gap therebetween; a rotor case that holds the rotor; and a first bearing and a second bearing that rotatably support the rotor case. The rotating electric machine includes: a first flow path formation body that forms a first flow path through which a refrigerant flows to a coil end part protruding from the stator core; a first case part which forms an accommodation space of the first bearing, is connected to the first flow path of the first flow path formation body, and fills the accommodation space with the refrigerant.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile