| 摘要 |
A gas turbine includes: a cooling air pipe disposed at a downstream side of a rotor main body without contacting with the rotor main body and configured to feed cooling air into a cooling air main passage of the rotor main body; a bearing downstream end shaft seal annularly disposed at an outer circumferential side of the rotor main body and at a downstream side of a bearing which rotatably supports the rotor may body; and a collecting flow passage member having a leaked air collecting flow passage that guides the cooling air, which is leaked from the bearing downstream end shaft seal to the bearing side, into an exhaust flow passage through which a combustion gas passing through a final blade stage flows.
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