Skip to Content
Find More Like This
Return to Search

Airfoil shape for a turbine bucket

United States Patent

June 28, 2005
View the Complete Patent at the US Patent & Trademark Office
Third stage turbine buckets have airfoil profiles substantially in accordance with Cartesian coordinate values of X, Y and Z set forth Table I wherein X and Y values are in inches and the Z values are non-dimensional values from 0 to 0.938 convertible to Z distances in inches by multiplying the Z values by the height of the airfoil in inches. The X and Y values are distances which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z. The profile sections at each distance Z are joined smoothly to one another to form a complete airfoil shape. The X and Y distances may be scalable as a function of the same constant or number to provide a scaled up or scaled down airfoil section for the bucket. The nominal airfoil given by the X, Y and Z distances lies within an envelop of .+-.0.150 inches in directions normal to the surface of the airfoil.
Hyde; Susan Marie (Piedmont, SC), By; Robert Romany (Simpsonville, SC), Tressler; Judd Dodge (Mason, OH), Schaeffer; Jon Conrad (Simpsonville, SC), Sims; Calvin Levy (Mauldin, SC)
General Electric Company (Schenectady)
10/ 624,632
July 23, 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.