Power plants – Combustion products used as motive fluid – Combustion products generator
Patent
1988-03-07
1989-11-28
Stout, Donald E.
Power plants
Combustion products used as motive fluid
Combustion products generator
415115, F02C 300, F01D 514
Patent
active
048829021
ABSTRACT:
An improved system provides cooling air to the turbine blades of a gas turbine engine. The improved system includes the combination of an inducer to receive pressurized cooling air from the compressor and then to direct this cooling air in a substantially tangential direction to a radial flow impeller which includes an air seal. Cooling air is directed to the turbine blades which are mounted on the rim of the rotating first turbine disk. In a preferred embodiment of the invention, a second portion of the cooling air from the inducer is conveyed through a deswirler to introduce the cooling air into a circumferential channel surrounding the rotor shaft. The cooling air is then directed to a second inducer means which is mounted on the higher pressure turbine disk. The cooling air is then directed to a second annular impeller mounted on the lower pressure turbine disk to convey this portion of cooling air to the lower pressure turbine rotor blades.
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Bertke James H.
Corsmeier Robert J.
Lenahan Dean T.
Reigel James R.
General Electric Company
Rosen Steven J.
Squillaro Jerome C.
Stout Donald E.
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