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Airfoil shape for a turbine nozzle

United States Patent

June 4, 2002
View the Complete Patent at the US Patent & Trademark Office
A first-stage nozzle vane includes an airfoil having a profile according to Table I. The annulus profile of the hot gas path is defined in conjunction with the airfoil profile and the profile of the inner and outer walls by the Cartesian coordinate values given in Tables I and II, respectively. The airfoil is a three-dimensional bowed design, both in the airfoil body and in the trailing edge. The airfoil is steam and air-cooled by flowing cooling mediums through cavities extending in the vane between inner and outer walls.
Burdgick; Steven Sebastian (Schenectady, NY), Patik; Joseph Francis (Cohoes, NY), Itzel; Gary Michael (Simpsonville, SC)
General Electric Company (Schenectady, NY)
09/ 779,226
February 8, 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.