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AssigneeGeneral Electric Company
InventorsThomas Edward DeMarche, Robert Francis Manning
Estimating the term…
A method for fabricating a nozzle for a gas turbine engine facilitates extending a useful life of the nozzles. The nozzle includes an airfoil. The method includes forming the airfoil to include a suction side and a pressure side connected at a leading edge and a trailing edge such that a cooling cavity and a cooling circuit are defined within the airfoil, wherein the suction side and the pressure side extend radially between a tip and a root. The method also includes forming a plurality of cooling slots within the airfoil that extend from the cooling circuit towards the airfoil trailing edge, and forming a control vane within the cooling circuit to facilitate maintaining a substantially constant cooling effectiveness within the cooling circuit.
A method for fabricating a nozzle for a gas turbine engine, the nozzle including an airfoil, said method comprising:
A turbine nozzle for a gas turbine engine, said nozzle comprising an airfoil vane comprising a first wall, a second wall, a plurality of trailing edge cooling slots, and a cooling circuit extending between said first and second walls, said cooling circuit upstream from said trailing edge cooling slots for channeling cooling air to said trailing edge cooling slots, said cooling circuit comprising at least one control vane extending between said first and second walls, said control vane extending upstream from said trailing edge cooling slots and decreasing a cross sectional area of said cooling circuit for maintaining a substantially constant cooling effectiveness within said cooling circuit.
An airfoil for a gas turbine engine nozzle, said airfoil comprising a root, a tip, a cooling circuit, a plurality of trailing edge cooling slots, a convex sidewall and a concave sidewall connected at a trailing edge, said plurality of trailing edge cooling slots extending from said cooling circuit towards said airfoil trailing edge, each said sidewall extending between said root and tip, said cooling circuit defined between said sidewalls and comprising a plurality of pins and a control vane, said plurality of pins and said control vane extending between said sidewalls and defining a flowpath for channeling cooling air through said cooling circuit into said trailing edge cooling slots, said control vane extending upstream from said trailing edge cooling slots such that a cross sectional area of said cooling circuit is decreased by said control vane to facilitate maintaining a substantially constant cooling effectiveness within said cooling circuit.
Dependencies are inferred from the claim text.