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Third-stage turbine nozzle airfoil

  • US 6,461,109 B1
  • Filed: 07/13/2001
  • Issued: 10/08/2002
  • Est. Priority Date: 07/13/2001
  • Status: Expired due to Fees
First Claim
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1. A turbine nozzle having a nozzle vane in the shape of an airfoil in an envelope within ±

  • 0.100 inches in a direction normal to any airfoil surface location wherein the airfoil has an uncoated nominal profile substantially in accordance with Cartesian coordinate values of X, Y and Z set forth in inches 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 a radially innermost aerodynamic section of the airfoil and X and Y are coordinate values defining the airfoil profile at each distance Z, the profiles at the Z distances being joined smoothly with one another to form the complete airfoil shape.

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