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:
Sep. 17, 2002
Filed:
Dec. 19, 2000
Christian Lee Vandervort, Voorheesville, NY (US);
Todd Garrett Wetzel, Niskayuna, NY (US);
Emil Donald Jarczynski, Scotia, NY (US);
Samir Armando Salamah, Niskayuna, NY (US);
Wayne Nigel Owen Turnbull, Clifton Park, NY (US);
General Electric Company, Schenectady, NY (US);
Abstract
A gas cooled dynamoelectric machine is provided that is comprised of a rotor, a rotor winding comprising axially extending coils and concentric endwindings, and a plurality of spaceblocks located between adjacent endwindings thereby to define a plurality of cavities, each bounded by adjacent spaceblocks and adjacent endwindings. To enhance the heat transfer rate from the copper end turns of the field endwinding region, cavity facing surface(s) of the endwinding and/or the spaceblock have a non-planar surface profile to increase surface area, improve turbulent mixing on the surface, and/or provide boundary layer breakup.