Patent ID: 6295803
Filing Date: 2001-10-02
Classification: F01D,F02C,F05D,Y02T

Abstract:
A gas turbine comprising:a compressor having an outlet for discharging compressed air;a combustor having an inlet for receiving compressed air from the compressor outlet and an outlet for discharging combustion gas;a turbine having an inlet for receiving combustion gas from the combustor outlet and having a hot portion heated by the combustion gas;a cooling circuit adapted to transfer heat from the hot portion to the compressed air with a non-electrically-conductive cooling fluid, the cooling circuit comprising:a heat exchanger disposed in a flow path of the compressed air between the compressor outlet and the combustor inlet;a cooling passage formed proximate the hot portion;a first connection between an outlet of the cooling passage and an inlet of the heat exchanger; anda second connection between an inlet of the cooling passage and an outlet of the heat exchanger.