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:
Oct. 19, 2010
Filed:
Jul. 23, 2008
Emil D. Jarczynski, Scotia, NY (US);
Norman J. Suguitan, Ballston Lake, NY (US);
William D. Gerstler, Niskayuna, NY (US);
Christopher Anthony Kaminski, Schenectady, NY (US);
Hendrik P. J. DE Bock, Clifton Park, NY (US);
Emil D. Jarczynski, Scotia, NY (US);
Norman J. Suguitan, Ballston Lake, NY (US);
William D. Gerstler, Niskayuna, NY (US);
Christopher Anthony Kaminski, Schenectady, NY (US);
Hendrik P. J. de Bock, Clifton Park, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A cooling gas ventilation chimney is provided for enhancing the heat transfer of an end region of a dynamoelectric machine. The dynamoelectric machine includes a rotor having a plurality of radial slots. A plurality of coils are seated in the radial slots, and the coils form a plurality of radially stacked turns. The ventilation chimney includes one or more chimney slots defined in at least a portion of the radially stacked turns. The chimney slots extend in a substantially radial direction to the rotor, and some of the chimney slots have an axial or circumferential length different from other chimney slots.