| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas turbine easily adjusting a flow rate or pressure of cooling air for cooling a turbine rotor even after mounted without troublesome disassembly/assembly operation. SOLUTION: This gas turbine burning compressed air from a compressor 10 together with fuel by a combustor 20 and providing axial power in a turbine 30 by combustion gas, is provided with a cooling air channel 70 extracting as cooling air a part of compressed air supplied to the combustor 20 and introducing cooling air to a turbine rotor 39 through a center hole 75 arranged in a connecting shaft 60 connecting a compressor rotor 12 and the turbine rotor 39, and an orifice plug 80 detachably provided to the inlet part 71 of the cooling air channel 70 and adjusting the flow rate or pressure of cooling air flowing in the cooling air channel 70. COPYRIGHT: (C)2006,JPO&NCIPI
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