Title:
TURBINE STATOR VANE
Document Type and Number:
WIPO Patent Application WO/2023/095721
Kind Code:
A1
Abstract:
A turbine stator vane according to at least one embodiment of the present disclosure comprises an airfoil, an inner shroud provided on the inner-peripheral side of the airfoil, and an outer shroud provided on the outer-peripheral side of the airfoil. The inner shroud has a first recess formed in the surface on the side opposite the airfoil across a gas path surface of the inner shroud. The outer shroud has a second recess formed in the surface on the side opposite the airfoil across a gas path surface of the outer shroud, and at least one outer passage that communicates with the second recess and does not communicate with the space inside the airfoil. The number of outer passages is greater than the number of inner passages that communicate with the first recess in the inner shroud and do not communicate with the space inside the airfoil.
Inventors:
HATTA MASAYOSHI (JP)
MORIMOTO KAZUKI (JP)
WAKAZONO SUSUMU (JP)
MORIMOTO KAZUKI (JP)
WAKAZONO SUSUMU (JP)
Application Number:
PCT/JP2022/042830
Publication Date:
June 01, 2023
Filing Date:
November 18, 2022
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI POWER LTD (JP)
MITSUBISHI POWER LTD (JP)
International Classes:
F01D9/02; F02C7/18
Foreign References:
| US4012167A | 1977-03-15 | |||
| JP2015507128A | 2015-03-05 | |||
| US20150285086A1 | 2015-10-08 | |||
| JP6344869B2 | 2018-06-20 | |||
| JP2017160892A | 2017-09-14 | |||
| JP2017036710A | 2017-02-16 | |||
| JP2001254604A | 2001-09-21 | |||
| JP2004060638A | 2004-02-26 |
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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