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. 27, 2003
Filed:
Jun. 29, 2001
Applicant:
Inventor:
Edmund E. Kazmierczak, Niskayuna, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02K 1/00 ;
U.S. Cl.
CPC ...
H02K 1/00 ;
Abstract
A polyphase electrical machine having one or more stators, each stator having a plurality of phase windings, each phase winding having a plurality of concentric coils. One or more concentric coils of a phase winding are interspersed with one or more concentric coils of at least another phase winding to reduce undesirable harmonics and parasitic losses in the electrical machine. For single phase electrical machines, harmonic content and parasitic losses may be reduced by locating nested coils such that successive nested coils among a plurality of nested coils may have a span difference of greater than two stator slots.