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Turbine Stator Vane with Multiple Outer Diameter Pressure Feeds

United States Patent Application

View the Complete Application at the US Patent & Trademark Office
A stator vane assembly for a gas turbine engine in which both higher pressure cooling air and lower pressure cooling air are both supplied to the stator vane assembly to cool both an airfoil and inner and outer diameter endwall cavities of the stator vane assembly, in which the spent higher pressure cooling air is then discharged into a combustor of the gas turbine engine. The higher pressure cooling air flows through a closed loop cooling circuit formed within the stator vane assembly while the lower pressure cooling air is discharged through exit holes into the hot gas stream of the turbine.
Cupini, Michelle I. (Jupiter, FL), Murray, Stephen E. (Port St. Lucie, FL)
15/ 405,467
January 13, 2017
GOVERNMENT LICENSE RIGHTS [0002] This invention was made with Government support under contract number DE-FE0023975 awarded by Department of Energy. The Government has certain rights in the invention.