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. 27, 2012
Filed:
Oct. 19, 2009
Charles Michael Stephens, Pattersonville, NY (US);
Konrad Roman Weeber, Rexford, NY (US);
Steven Joseph Galioto, Latham, NY (US);
Ralph James Carl, Jr., Clifton Park, NY (US);
Charles Michael Stephens, Pattersonville, NY (US);
Konrad Roman Weeber, Rexford, NY (US);
Steven Joseph Galioto, Latham, NY (US);
Ralph James Carl, Jr., Clifton Park, NY (US);
General Electric Company, Niskayuna, NY (US);
Abstract
A method for magnetizing a rotor of an electrical machine is provided. The method includes assembling an array of non-magnetized anisotropic permanent magnet segments around a rotor spindle encased in a metallic ring. The method also includes determining multiple optimal magnetization orientation directions of the non-magnetized anisotropic permanent magnet segments. Further, the method includes positioning the assembled non-magnetized anisotropic permanent magnet segments around the rotor spindle such that the optimal magnetization orientation directions of the anisotropic permanent magnet segments are aligned with multiple flux lines produced by a magnetization fixture. Finally, the method includes energizing the magnetization fixture for magnetizing the segments via a pulse direct current for an optimal duration of the pulse.