Power plants – Combustion products used as motive fluid
Patent
1998-01-28
2000-04-18
Casaregola, Louis J.
Power plants
Combustion products used as motive fluid
60728, F02C 712
Patent
active
060500808
ABSTRACT:
A system for cooling hot section components of a gas turbine engine. The cooling system includes a plurality of compressors, or compression train, and an intercooler disposed between each adjacent pair of compressors so as to achieve the desired pressure and temperature of the cooling air at reduced shaft power requirements. The first stage of compression may be provided by the booster, or low pressure compressor, of the engine, with the first intercooler receiving all of the air discharging from the booster. After exiting the first intercooler, a first portion of the booster discharge air is routed to the engine high pressure compressor and a second portion is routed to an inlet of the second compressor of the cooling air compression train. The compressed, cooled air exiting the last, downstream one of the compressors is used for cooling at least a first hot section component of the engine.
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Casaregola Louis J.
General Electric Company
Hess Andrew C.
Young Rodney M.
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