GAS TURBINE

WIPO Patent Application WO/2015/186523

A1

Provided is a gas turbine which enables the amount of supply of cooling air to be efficiently and easily adjusted. This gas turbine has: a first cavity to which cooling air is supplied, said first cavity being formed inside a stationary body; a second cavity which is formed between the stationary body and a rotating body; a first cooling passage which is formed between the first cavity and the second cavity and has swirl flow guide nozzles arranged therein, said swirl flow guide nozzles causing the cooling air in the first cavity to be swirled along the rotation direction of the rotating body and supplied to the second cavity; a second cooling passage which is formed in the rotating body and communicates with the second cavity so that the cooling air in the second cavity is supplied thereto; and a flow rate regulation passage which is a cooling air flow passage different from the first cooling passage and is formed between the first cavity and the second cavity to supply the cooling air from the first cavity to the second cavity. The flow rate regulation passage has a flow rate regulation means for regulating the flow rate of the cooling air.

TSUJI YOSHIFUMI (JP)
HASHIMOTO SHINYA (JP)
NISHIOKA YASUNORI (JP)

PCT/JP2015/064484

December 10, 2015

May 20, 2015

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MITSUBISHI HITACHI POWER SYS (JP)

F02C7/18; F01D5/08; F01D25/12

JP2013185453A	2013-09-19
JPH04241744A	1992-08-28
JP2003500585A	2003-01-07
US4217755A	1980-08-19
US4462204A	1984-07-31
US6468032B2	2002-10-22

SAKAI, HIROAKI (JP)
Hiroaki Sakai (JP)

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