| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-axle type gas turbine capable of suppressing the unbalance of rotors by disposing a bearing between a high-pressure turbine rotor and a low-pressure turbine rotor and securely sealing the bearing. SOLUTION: This two-axle type gas turbine comprises a compressor 20 compressing sucked air and discharging compressed air, a high-pressure turbine 50 having the high-pressure turbine rotor 51 connected to a compressor rotor 21 and forming a gas generator 10 together with the compressor 20, a low-pressure turbine 70 installed on the downstream side of the high-pressure turbine 50 and having the low-pressure turbine rotor 71 rotating independently of the high-pressure turbine rotor 51, an air supply system 76 leading the compressed air from the compressor 20 to a low-pressure turbine initial stage stationary blade 74, and a flexible pipe 90 with flexibility connecting an air supply system 76 to the front bearing 81 of the low-pressure turbine rotor 71 disposed on the upstream side of a low-pressure turbine initial stage moving blade 72a and leading a part of the compressed air flowing in the air supply system 76 to the front bearing 81. COPYRIGHT: (C)2006,JPO&NCIPI
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