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AssigneeChromalloy Gas Turbine Corporation
InventorsDavid G. Parker, Zhenhua Xiao, Richard Yu, Vincent C. Martling, Paul Gregory Herber, Daniel Folkers
Estimating the term…
A turbine nozzle having an airfoil profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, and within an envelope of approximately −0.067 to +0.101 inches, where the X and Y values are in inches and the Z values are non-dimensional values from 0 to 1 and 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 the airfoil shape. The X and Y values may also be scaled as a function of a first constant and the Z values may be scaled as a function of a second constant.
A turbine nozzle comprising an airfoil, the airfoil having a shape within an envelope of approximately −0.067 to +0.101 inches in a direction normal to any surface of the airfoil, the airfoil comprising a nominal uncoated profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, wherein the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by a height of the airfoil in inches and adding that product to a root radius of the turbine nozzle, and wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each Z value, the profile sections at the Z values being joined smoothly with one another to form a complete airfoil shape.
A turbine nozzle comprising an airfoil, the airfoil having a shape comprising a nominal uncoated profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, wherein the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by a height of the airfoil in inches and adding that product to a root radius of the turbine nozzle, and wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z, the profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape.
An assembly of second stage turbine nozzles, with each nozzle comprising an airfoil having a shape within an envelope of approximately −0.067 to +0.101 inches in a direction normal to any surface of the airfoil, each airfoil comprising a nominal uncoated profile substantially in accordance with Cartesian coordinate values of X, Y, and Z set forth in Table 1, wherein the Z values are non-dimensional values from 0 to 1 convertible to Z distances in inches by multiplying the Z values by a height of the respective airfoil in inches and adding that product to a root radius of the turbine nozzle, and wherein X and Y are distances in inches which, when connected by smooth continuing arcs, define airfoil profile sections at each distance Z, the airfoil profile sections at the Z distances being joined smoothly with one another to form a complete airfoil shape.
Dependencies are inferred from the claim text.