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:
May. 07, 2019
Filed:
Jun. 03, 2014
Mitsubishi Electric Corporation, Chiyoda-ku, Tokyo, JP;
Tetsuya Nagayasu, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Chiyoda-Ku, Tokyo, JP;
Abstract
In order to improve cooling performance of a rotor of a rotary electric machine, attention is paid to the relation between the secondary flow of a cooling gas generated inside ventilation holes for the cooling gas provided in a rotor winding formed by stacking a conductor and an interlayer insulating layer and the main flow of the cooling gas during the rotary motion of the rotor, and the secondary flow of the cooling gas is suppressed by changing the shape of bulges appearing in a linear shape in the stacked direction on an inner wall surface of each rotor winding ventilation hole on a negative pressure side.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile