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:
Aug. 17, 2004
Filed:
Apr. 02, 2001
Applicant:
Inventors:
Daniel M. Saban, Rockford, IL (US);
Charles Michael Stephens, Pattersonville, NY (US);
Gerald Burt Kliman, Niskayuna, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K 1/716 ; H02K 1/722 ; H02K 1/742 ; H02K 1/914 ;
U.S. Cl.
CPC ...
H02K 1/716 ; H02K 1/722 ; H02K 1/742 ; H02K 1/914 ;
Abstract
Divided magnet rotors R having a stepped skew rather than a helical skew are described. The stepped skew enables the use of straight magnet sections ( ) that can be inserted into the rotor core notches ( ) thereby eliminating the need to produce a helix from the rotor cage. The stepped skew is effective in decoupling stator slot order harmonics. In addition, the stepped skew rotor R includes, in some embodiments, open slots ( ) so that the rotor is not subject to rotor bridge saturation.