Airfoil shape for a turbine nozzle

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

2005-03-15

2005-03-15

Verdier, Christopher (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, C415S209100, C415S210100, C415S211200

Reexamination Certificate

active

06866477

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 are non-dimensional values within a range from 0.1 to 0.9 convertible to Z distances in inches by multiplying the Z values of Table I within the range by a height of the airfoil in inches. The profile sections at the Z distances are joined smoothly with one another to form the nozzle 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 ±0.160 inches.

REFERENCES:
patent: 6450770 (2002-09-01), Wang et al.
patent: 6461110 (2002-10-01), By et al.
patent: 6685434 (2004-02-01), Humanchuk et al.
patent: 6715990 (2004-04-01), Arness et al.
patent: 6722853 (2004-04-01), Humanchuk et al.
patent: 6736599 (2004-05-01), Jacks et al.

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