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:
Jul. 18, 2006
Filed:
May. 26, 2004
Christopher Anthony Kaminski, Schenectady, NY (US);
Yu Wang, Clifton Park, NY (US);
Anand Shankar Tanavde, Slingerlands, NY (US);
James Pelligrino Alexander, Ballston Lake, NY (US);
Christopher Anthony Kaminski, Schenectady, NY (US);
Yu Wang, Clifton Park, NY (US);
Anand Shankar Tanavde, Slingerlands, NY (US);
James Pelligrino Alexander, Ballston Lake, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A rotor in a electrical machine comprises a magnetic core having at least two poles, a plurality of winding assemblies, one for each pole, and a damper winding enclosing at least a portion of the magnetic core and winding assemblies. The damper winding has (i) a plurality of electrically conductive rings concentric with a rotational axis of the magnetic core and (ii) a plurality of bars extending parallel to the rotational axis of the magnetic core and connecting to each of the rings. A radially outward surface of each of the bars is connected to a respective radially inner surface of each of the rings. A spindle of the magnetic core has first and second flat surfaces extending perpendicular to a direct axis of the magnetic core. The magnetic core may include first and second projections extending in opposite directions along the quadrature axis.