Cooling system for gas turbine vane

F - Mech Eng,Light,Heat,Weapons – 01 – D

Patent

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Details

F01D 5/18 (2006.01) F02C 7/16 (2006.01)

Patent

CA 2274519

A gas turbine that has turbine vanes that can be cooled with either steam or air includes a compressor that compresses air, a combustor enclosed within a shell and in flow communication with the compressor, a turbine in flow communication with the combustor and receiving hot gas from the combustor and turbine vanes. The turbine vanes having an airfoil, a shroud and a cooling circuit that cools the airfoil and the shrouds with either steam or air.

L'invention concerne une turbine à gaz équipée d'aubes de turbine pouvant être refroidies avec de la vapeur ou avec de l'air. La turbine à gaz comprend un compresseur qui comprime l'air, une chambre de combustion logée à l'intérieur d'une enveloppe et communiquant de manière fluidique avec le compresseur, une turbine en communication fluidique avec la chambre de combustion et recevant du gaz chaud de la chambre de combustion et des aubes de turbine. Les aubes de turbine comportent une surface à profil aérodynamique, une gaine, et un circuit de refroidissement qui refroidit la surface aérodynamique et les gaines avec de la vapeur ou avec de l'air.

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