Airfoil shape for a turbine nozzle

Details Airfoil shape for a turbine nozzle Airfoil shape for a turbine nozzle

2005-05-03

2005-05-03

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Working fluid passage or distributing means associated with...

Plural distributing means immediately upstream of runner

C415S193000, C415S208200, C415S211200

Reexamination Certificate

active

06887041

ABSTRACT:
The third stage nozzle has an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in Table I wherein X and Y values are in inches and define airfoil profile sections at each distance Z and Z is a non-dimensional value from 0 to 1 convertible to Z distances in inches by multiplying the Z values of Table I by a height of the airfoil in inches. The profile sections at the Z distances are joined smoothly with one another to form a complete airfoil shape. The X and Y distances may be scalable to provide a scaled-up or scaled-down airfoil for the nozzle. The nominal airfoil given by the X, Y and Z distances lies within an envelope of ±0.100 inches.

REFERENCES:
patent: 5980209 (1999-11-01), Barry et al.
patent: 6461109 (2002-10-01), Wedlake et al.
patent: 6503054 (2003-01-01), Bielek et al.

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