Turbine exhaust strut airfoil profile
AssigneePratt & Whitney Canada Corp.
InventorsSami Girgis, Krishan Mohan, Mona El-Fouly
Life of this patent
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Abstract
A turbine exhaust thin strut includes an airfoil section having a profile substantially in accordance with at least an intermediate portion of the Cartesian coordinate values of X, Y and Z set forth in Table 2. The X and Y values are distances, which when smoothly connected by an appropriate continuing curve, 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.
Claims12
A strut extending across an exhaust duct of a gas turbine engine, comprising an airfoil having at least a portion defined by a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of Sections 3 to 6 set forth in Table 2, wherein the point of origin of the orthogonally related axes X, Y and Z is located at an intersection of a centerline of the gas turbine engine and a stacking line of the strut in the exhaust duct, the Z values are radial distances measured along the stacking line, the X and Y are coordinate values defining the profile at each distance Z.
A strut extending across an exhaust duct of a gas turbine engine comprising an uncoated airfoil having at least one portion defined by a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of Sections 3 to 6 set forth in Table 2, wherein the point of origin of the orthogonally related axes X, Y and Z is located at an intersection of a centerline of the gas turbine engine and a stacking line of the strut in the exhaust duct, the Z values are radial distances measured along the stacking line of the airfoil, the X and Y are coordinate values defining the profile at each distance Z, and wherein the X and Y values are scalable as a function of the same constant or number.
An exhaust duct for a gas turbine engine comprising a plurality of thin struts, each thin strut including an airfoil having at least one portion defined by a nominal profile substantially in accordance with Cartesian coordinate values of X, Y, and Z of Sections 3 to 6 set forth in Table 2, wherein the point of origin of the orthogonally related axes X, Y and Z is located at an intersection of a centerline of the gas turbine engine and a stacking line of the struts, the Z values are radial distances measured along the stacking line, the X and Y are coordinate values defining the profile at each distance Z.
Dependencies are inferred from the claim text.