Patent ID: 8966878
Filing Date: 2015-03-03
Classification: F01D,F02C

Abstract:
1. A gas turbine, comprising: a compressor configured to compress air to produce compressed air; a combustor configured to combust a mixture of fuel and the compressed air to produce combustion gas; a turbine having a turbine shaft configured to be rotationally driven by the combustion gas; an exhaust diffuser configured to exhaust the combustion gas, as exhaust gas, from the turbine; an exhaust-side bearing portion rotatably supporting the turbine shaft; and an exhaust gas passage through which high-temperature gas accumulated in a space partitioned by the exhaust-side bearing portion and the exhaust diffuser is to be discharged, wherein the high-temperature gas is arranged to be sucked into the exhaust gas passage by the exhaust gas flowing in the exhaust diffuser, the space is partitioned by the exhaust gas passage includes a plurality of exhaust holes formed on the partition wall, the gas turbine further comprises a flow-rate control unit configured to control a flow rate of the high-temperature gas through at least one of the plurality of exhaust holes, the gas turbine further comprises a plurality of exhaust connecting pipes which are connected at first ends to the plurality of exhaust holes, project into the space and include the flow-rate control unit, each of the plurality of exhaust connecting pipes includes a pipe portion bent at a right angle, second ends of the exhaust connecting pipes disposed on an upper side of the partition wall face downward in a circumferential direction of the partition wall, and second ends of the exhaust connecting pipes disposed on a lower side of the partition wall face downward.