Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Radial flow devices
Reexamination Certificate
2007-08-01
2010-06-08
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Radial flow devices
C416S243000, C416SDIG004
Reexamination Certificate
active
07731483
ABSTRACT:
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 1 convertible to Z distances in inches by multiplying the Z′ values by the height of the airfoil in inches and adding the radius of the airfoil base. 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, Y and Z 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 envelope of +/−0.0.060 inches in directions normal to the surface of the airfoil.
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Bielek Craig Allen
DeLong Jon Robert
Hayes Tommy Dee
Johnson Scott F.
Lagrange Benjamin Arnette
General Electric Company
Look Edward
Nixon & Vanderhye PC
White Dwayne J
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