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Title:
TURBINE STATIC BLADE, FITTING STRUCTURE, AND GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2023/132236
Kind Code:
A1
Abstract:
Provided is a turbine static blade composed of a blade body and shrouds respectively formed on both ends in the blade height direction of the blade body. The shroud includes: a main member having a heat-resistance coat film section which extends from the axial upstream end to the axial downstream end of a gas passing surface; and a protruding section which protrudes from a sided end section on the front edge side of the main member toward the axial upstream side. The protruding section comprises a plurality of cooling paths which are disposed in an annular shape at predetermined intervals in the circumferential direction, and connect an inlet opening which is formed in an inner circumferential surface of the protruding section and an inner surface of the main member, and an outlet opening which is formed in an outer circumferential surface of the protruding section.

Inventors:
HATTA MASAYOSHI (JP)
MORIMOTO KAZUKI (JP)
WAKAZONO SUSUMU (JP)
Application Number:
PCT/JP2022/047053
Publication Date:
July 13, 2023
Filing Date:
December 21, 2022
Export Citation:
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Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI POWER LTD (JP)
International Classes:
F01D9/02; F01D9/04; F01D25/12; F02C7/18
Foreign References:
US20170268380A12017-09-21
JP2002266603A2002-09-18
US20180258776A12018-09-13
DE102019211418A12021-02-04
JP2021032082A2021-03-01
JP2007154899A2007-06-21
US20100129199A12010-05-27
JP2007514888A2007-06-07
US5470198A1995-11-28
US10738629B22020-08-11
US6082961A2000-07-04
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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