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First-stage high pressure turbine bucket airfoil

United States Patent

May 25, 2004
View the Complete Patent at the US Patent & Trademark Office
The first-stage buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I wherein Z is a perpendicular distance from a plane normal to a radius of the turbine centerline and containing the X and Y values with the Z value commencing at zero in the X, Y plane at the radially innermost aerodynamic section of the airfoil and X and Y are coordinates defining the airfoil profile at each distance Z. The X, Y and Z values may be scaled as a function of the same constant or number to provide a scaled-up or scaled-down airfoil section for the bucket.
Brown; Theresa A. (San Diego, CA), Ahmadi; Majid (Simpsonville, SC), Clemens; Eugene (Brownburg, IN), Perry, II; Jacob C. (Taylors, SC), Holiday; Allyn K. (Rotterdam Jct., NY), Delehanty; Richard A. (Maineville, OH), Jacala; Ariel Caesar Prepena (Simpsonville, SC)
General Electric Company (Schenectady, NY)
10/ 403,696
March 31, 2003
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.