Mitsubishi Heavy Industries Limited

Mitsubishi Hitachi Power Systems, Ltd.

Noboru Okuyama

Yasuyuki Watanabe

Shohei Yoshida

Keisuke Miura

Yoshitaka Hirata

Yasuhiro Wada

Akinori Hayashi

Satoshi Dodo

Tomohiro Asai

Kazuki Abe

Mitsuhiro Karishuku

Yasuhiro Akiyama

Tatsuya Hagita

A gas turbine combustor is equipped with a transition piece assembly of the combustor, the transition piece assembly includes a transition piece, a frame which is installed on the downstream side (an outlet part) of the transition piece and a seal member which is installed on a coupled part of the aforementioned frame and a turbine-side stator vane part and blocks flowing of compressed air from a compressor into the aforementioned turbine side through a gap of the coupled part, and a projection member is provided on an outer circumference of the aforementioned frame, a movement suppression mechanism for matching the aforementioned projection member and suppressing possible movement of the aforementioned seal member is provided on the aforementioned seal member, the movement suppression mechanism and the aforementioned projection members fit together and thereby the aforementioned seal member is fixed to the frame.

Gas turbine combustor and transition piece assembly

The gas turbine combustor includes a swirler lip on the air hole plate periphery, protruding toward a chamber, and a spring seal in an area for fitting the liner and the plate/lip. The spring seal has an air hole for passage of part of the combustion air introduced in the gap between the outer periphery of the air hole plate and the liner. The swirler lip has an air hole which introduces part of the combustion air passing through the spring seal air hole into the chamber. The liner has an air hole facing the spring seal air hole, to introduce part of air from outside the liner into the gap between the outer periphery of the air hole plate and the liner. A turn guide for rectifying a combustion air flow is provided at the liner end portion on the side for fitting the liner and air hole plate.

Gas turbine combustor

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Yokohama, Japan

Noboru Okuyama