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Cooled turbine vane with endcaps

United States Patent

6,454,526
September 24, 2002
View the Complete Patent at the US Patent & Trademark Office
A turbine vane assembly which includes an outer endcap having a plurality of generally straight passages and passage segments therethrough, an inner endcap having a plurality of passages and passage segments therethrough, and a vane assembly having an outer shroud, an airfoil body, and an inner shroud. The outer shroud, airfoil body and inner shroud each have a plurality of generally straight passages and passage segments therethrough as well. The outer endcap is coupled to the outer shroud so that outer endcap passages and said outer shroud passages form a fluid circuit. The inner endcap is coupled to the inner shroud so that the inner end cap passages and the inner shroud passages from a fluid circuit. Passages in the vane casting are in fluid communication with both the outer shroud passages and the inner shroud passages. Passages in the outer endcap may be coupled to a cooling system that supplies a coolant and takes away the heated exhaust.
Cunha; Frank J. (Avon, CT), Schiavo, Jr.; Anthony L. (Ovideo, FL), Nordlund; Raymond Scott (Orlando, FL), Malow; Thomas (Oviedo, FL), McKinley; Barry L. (Chuluota, FL)
Siemens Westinghouse Power Corporation (Orlando, FL)
09/ 672,592
September 28, 2000
GOVERNMENT CONTRACT The Government of the United States of America has certain rights in this invention pursuant to Contract No. DE-FC21-95MC32267 awarded by the U.S. Department of Energy.