Rotary kinetic fluid motors or pumps – Method of operation
Reexamination Certificate
2006-11-30
2009-11-03
Nguyen, Ninh H (Department: 3745)
Rotary kinetic fluid motors or pumps
Method of operation
C415S173100, C415S191000, C415S199500, C415S116000
Reexamination Certificate
active
07611324
ABSTRACT:
A method of assembling a gas turbine engine is provided. The method includes coupling at least one turbine nozzle segment within the gas turbine engine. The at least one turbine nozzle segment includes at least one airfoil vane extending between an inner band and an outer band that includes an aft flange and a radial inner surface. The method also includes coupling at least one turbine shroud segment downstream from the at least one turbine nozzle segment, wherein the at least one turbine shroud segment includes a leading edge and a radial inner surface, coupling a cooling fluid source in flow communication with the at least one turbine nozzle segment such that cooling fluid channeled to each turbine nozzle outer band aft flange is directed at an oblique discharge angle towards the leading edge of the at least one turbine shroud segment, and channeling the cooling fluid through at least a first group of cooling openings having a larger aggregate cross-sectional area and a second group of cooling openings having a smaller aggregate cross-sectional area to facilitate preferential cooling of the turbine shroud.
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Estill Eric Alan
Laflen James Harvey
Lee Ching-Pang
Vitt Paul Hadley
Wymore Michael Elliot
Andes Esq. William Scott
Armstrong Teasdale LLP
General Electric Company
Nguyen Ninh H
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