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Gas turbine bucket with impingement cooled platform

United States Patent

August 13, 2002
View the Complete Patent at the US Patent & Trademark Office
In a turbine bucket having an airfoil portion and a root portion, with a substantially planar platform at an interface between the airfoil portion and root portion, a platform cooling arrangement including at least one bore in the root portion and at least one impingement cooling tube seated in the bore, the tube extending beyond the bore with an outlet in close proximity to a targeted area on an underside of the platform.
Jones; Raphael Durand (Guilderland, NY)
General Electric Company (Schenectady, NY)
09/ 768,220
January 24, 2001
This invention was made with Government support under Contract No. DE-FC21-95MC31176 awarded by the Department of Energy. The Government has certain rights in this invention.