Turbine nozzle airfoil profile
AssigneeGeneral Electric Company
InventorsNeil Devin Ristau, Russell Pierson DeForest, Jalindar Appa Walunj
Life of this patent
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Abstract
A turbine nozzle for a gas turbine includes: an airfoil having an airfoil shape having a nominal profile substantially in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I. The Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the values by a height of the airfoil expressed in units of distance. The X and Y values are connected by smooth continuing arcs that define airfoil profile sections at each distance Z along at least a portion of the airfoil, and the airfoil profile sections at the Z distances are joined smoothly with one another to form the nominal profile.
Claims18
A turbine nozzle comprising:
- an airfoil having:
- a suction side, a pressure side opposing the suction side, a leading edge spanning between the pressure side and the suction side, and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side;
- and
- at least one endwall connected with the airfoil along the suction side, the pressure side, the trailing edge and the leading edge,
- wherein at least one of a suction side or a pressure side of the airfoil has a shape having a nominal profile substantially in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I, wherein the Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the values by a height of the airfoil expressed in units of distance, and wherein X and Y values connected by smooth continuing arcs define airfoil profile sections at each distance Z along at least a portion of the airfoil, the airfoil profile sections at the Z distances being joined smoothly with one another to form the nominal profile;
- wherein each portion of the at least one portion of the Cartesian coordinate values is defined by a span section of the airfoil in the z direction.
A static nozzle section for a turbine, the static nozzle section comprising:
- a set of static nozzles, the set of static nozzles including at least one nozzle having:
- an airfoil having:
- a suction side, a pressure side opposing the suction side, a leading edge spanning between the pressure side and the suction side, and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side;
- and
- at least one endwall connected with the airfoil along the suction side, the pressure side, the trailing edge and the leading edge,
- wherein at least one of a suction side or a pressure side of the airfoil has a shape having a nominal profile substantially in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I, wherein the Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the values by a height of the airfoil expressed in units of distance, and wherein X and Y values connected by smooth continuing arcs define airfoil profile sections at each distance Z along at least a portion of the airfoil, the airfoil profile sections at the Z distances being joined smoothly with one another to form the nominal profile;
- wherein each portion of the at least one portion of the Cartesian coordinate values is defined by a span section of the airfoil in the z direction.
A turbine comprising a plurality of turbine nozzles, each of the turbine nozzles comprising:
- an airfoil having:
- a suction side, a pressure side opposing the suction side, a leading edge spanning between the pressure side and the suction side, and a trailing edge opposing the leading edge and spanning between the pressure side and the suction side;
- and
- at least one endwall connected with the airfoil along the suction side, the pressure side, the trailing edge and the leading edge,
- wherein at least one of a suction side or a pressure side of the airfoil has a shape having a nominal profile substantially in accordance with at least a portion of Cartesian coordinate values of X, Y and Z set forth in TABLE I, wherein the Cartesian coordinate values are non-dimensional values of from 0% to 100% convertible to distances by multiplying the values by a height of the airfoil expressed in units of distance, and wherein X and Y values connected by smooth continuing arcs define airfoil profile sections at each distance Z along at least a portion of the airfoil, the airfoil profile sections at the Z distances being joined smoothly with one another to form the nominal profile;
- wherein each portion of the at least one portion of the Cartesian coordinate values is defined by a span section of the airfoil in the z direction.
Dependencies are inferred from the claim text.