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. 20, 2025
Filed:
Feb. 01, 2021
Applicant:
Mitsubishi Generator Co., Ltd., Kobe, JP;
Inventors:
Saya Okano, Tokyo, JP;
Go Kajiwara, Tokyo, JP;
Assignee:
MITSUBISHI GENERATOR CO., LTD., Kobe, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/26 (2006.01); H02K 1/22 (2006.01); H02K 37/00 (2006.01);
U.S. Cl.
CPC ...
H02K 1/26 (2013.01);
Abstract
A bipolar rotor of a rotating electric machine is such that flexural rigidity asymmetry of a rotor main portion is adjusted using a cross slot provided in a rotor core, and flexural rigidity asymmetry of a rotor stepped portion is adjusted using a cutout groove provided in the rotor stepped portion, whereby optimization is achieved by combining the flexural rigidity asymmetry of the rotor main portion and the flexural rigidity asymmetry of the rotor stepped portion, and vibration in each double frequency vibration flexural vibration mode is restricted over a whole region of driving rotational speed.