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. 07, 2017
Filed:
Oct. 12, 2012
Applicant:
Abb Research Ltd., Zurich, CH;
Inventors:
Robert Chin, Vasteras, SE;
Juhani Mantere, Tuusula, FI;
Assignee:
ABB Research Ltd., Zurich, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/16 (2006.01); H02K 1/14 (2006.01); H02K 1/27 (2006.01); H02K 29/03 (2006.01); H02K 1/22 (2006.01);
U.S. Cl.
CPC ...
H02K 1/165 (2013.01); H02K 1/148 (2013.01); H02K 1/22 (2013.01); H02K 1/278 (2013.01); H02K 29/03 (2013.01);
Abstract
A rotor for an electrical machine including a plurality of pole sections with adjacent poles within each of the pole sections being distanced by a first uniform pole pitch. Adjacent poles belonging to different pole sections are distanced by a second (smaller) pole pitch at one end of each pole section, and by a third (larger) pole pitch at the other end of each pole section. Alternatively, a corresponding adjustment of coil pitches can be done in a stator of an electrical machine.