US 7,541,714 B2
Streamlined body wedge blocks and method for enhanced cooling of generator rotor
Nishant Parsania, Bangalore (India); and Samir A. Salamah, Niskayuna, N.Y. (US)
Assigned to General Electric Company, Schenectady, N.Y. (US)
Filed on Apr. 05, 2006, as Appl. No. 11/397,566.
Prior Publication US 2007/0236100 A1, Oct. 11, 2007
Int. Cl. H02K 3/46 (2006.01)
U.S. Cl. 310—270  [310/214] 18 Claims
OG exemplary drawing
 
1. A gas cooled dynamoelectric machine, comprising:
a rotor having a body portion, said rotor having axially extending coils and end turns defining a plurality of endwindings extending axially beyond at least one end of said body portion; and
at least one body wedge block located between adjacent said coils adjacent an axial end of said body portion, said body wedge block having first and second sidewall portions generally parallel to the axis of the rotor that engage said adjacent coils, an upstream wall, and a downstream wall, said upstream wall of said body wedge block having an aerodynamic contour having a gradually increasing width from a leading end edge thereof to said sidewall portions.