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:
Dec. 17, 2002
Filed:
Jan. 26, 2000
Christopher A. Kaminski, Schenectady, NY (US);
Richard J. Keck, Schenectady, NY (US);
Yu Wang, Schenectady, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A non-metallic structural enclosure for a generator rotor replaces conventional containment components including rotor wedges, rotor teeth and retaining rings. The enclosure includes a non-metallic tube formed of a plurality of spaced rings or of a continuous tube including ventilation holes or slots. The simplified rotor assembly serves to restrain the winding against centrifugal forces with a more highly optimized use of space and materials. The arrangement allows more space for copper and ventilation, thereby benefiting both efficiency and the performance of the machine. The use of individual rings has the additional benefit of providing restraint against centrifugal forces without reducing the effectiveness of cross slots in the rotor body from correcting peripheral dissymmetries in rotor stiffness. The rings also provide openings for ventilation without introducing stress concentrations in the enclosure.