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:
Dec. 16, 2014
Filed:
Mar. 12, 2013
Applicant:
Mitsubishi Electric Corporation, Chiyoda-ku, JP;
Inventors:
Takahiro Tsutsumi, Chiyoda-ku, JP;
Koji Yabe, Chiyoda-ku, JP;
Assignee:
Mitsubishi Electric Corporation, Chiyoda-Ku, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 17/16 (2006.01); H02K 1/06 (2006.01); H02K 17/20 (2006.01); F25B 1/00 (2006.01); H02K 1/14 (2006.01); H02K 1/26 (2006.01); F04C 23/00 (2006.01); F04C 29/00 (2006.01); F04C 18/356 (2006.01);
U.S. Cl.
CPC ...
H02K 1/06 (2013.01); H02K 17/205 (2013.01); H02K 2213/03 (2013.01); F25B 1/00 (2013.01); H02K 1/14 (2013.01); H02K 1/26 (2013.01); H02K 17/16 (2013.01); F04C 23/008 (2013.01); F04C 29/0085 (2013.01); F04C 18/356 (2013.01);
Abstract
The efficiency of an induction motor is improved while suppressing the generation of magnetic flux saturation of a rotor core. In an induction motor, 'a magnetic path width of a rotor' which is the product of a circumferential width of a rotor tooth formed in the rotor and the number of rotor teeth is equal to or larger than 'a magnetic path width of a stator' which is the product of a circumferential width of a stator tooth formed in the stator and the number of stator teeth.