STATIONARY BLADE SEGMENT, GAS TURBINE, AND METHOD FOR PRODUCING STATIONARY BLADE SEGMENT

WIPO Patent Application WO/2022/255051

A1

This stationary blade segment comprises a first stationary blade, a second stationary blade, and a connecting implement that connects the first stationary blade and the second stationary blade. A first shroud of the first stationary blade includes a first gas path face, and a first protruding part that protrudes to a reverse-channel side at a first end section of the first shroud. A second shroud of the second stationary blade includes a second gas path face, a second protruding part that protrudes to the reverse-channel side at a first end section of the second shroud, and a third protruding part that protrudes to the reverse-channel side at a second end section of the second shroud and that is connected to the first protruding part by the connecting implement. In a region where the first protruding part is aligned in the side direction in which the first stationary blade and the second stationary blade are aligned, the distance between the first gas path face and the surface, from among the surfaces of the second end section of the first shroud, that is the furthest separated from the first gas path face is shorter than the distance between the second gas path face and the surface, from among the surfaces of the second protruding part, that is the furthest separated from the second gas path face.

MAEDA KENGO (JP)
OTOMO HIROYUKI (JP)
TSUJI YOSHIFUMI (JP)

PCT/JP2022/019942

December 08, 2022

May 11, 2022

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MITSUBISHI POWER LTD (JP)
MITSUBISHI HEAVY IND LTD (JP)

F01D9/04

US4015910A	1977-04-05
JPH11125102A	1999-05-11
US20130011265A1	2013-01-10
JPH10196308A	1998-07-28

MATSUNUMA Yasushi et al. (JP)

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