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Title:
ANNULAR SEAL FOR GAS TURBINE AND GAS TURBINE
Document Type and Number:
WIPO Patent Application WO/2019/097905
Kind Code:
A1
Abstract:
This annular seal for a gas turbine is provided with: a first part extending in the circumferential direction on one end side in the axial direction and comprising a first groove opening on the one end side in the axial direction; and a second part extending in the circumferential direction on the other end side in the axial direction and comprising a second groove opening in the radial direction. A pair of first groove wall sections forming the first groove face each other in the radial direction in the first part, one of the first groove wall sections is positioned on the downstream side in the opening direction of the second groove, and a first notch is formed along the axial direction in this first groove wall section.

Inventors:
TOKUYAMA, Kentaro (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
SATO, Kenji (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
TANIGUCHI, Kenta (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
MURAKAMI, Akihiro (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
MATSUYAMA, Keisuke (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-Chome, Minato-k, Tokyo 15, 〒1088215, JP)
KODA, Takaya (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-Chome, Minato-k, Tokyo 15, 〒1088215, JP)
TORII, Shunsuke (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
SHIMMYO, Tetsuya (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
Application Number:
JP2018/037642
Publication Date:
May 23, 2019
Filing Date:
October 10, 2018
Export Citation:
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Assignee:
MITSUBISHI HITACHI POWER SYSTEMS, LTD. (3-1 Minatomirai 3-Chome, Nishi-ku Yokohama-sh, Kanagawa 01, 〒2208401, JP)
International Classes:
F02C7/28; F01D11/00; F01D25/00; F16J15/04
Domestic Patent References:
WO2017043415A12017-03-16
Foreign References:
JP2016070081A2016-05-09
JP2008031870A2008-02-14
JP2005030680A2005-02-03
JP2000257862A2000-09-22
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (Mita 43MT Building 13th Floor, 13-16 Mita 3-Chome, Minato-k, Tokyo 73, 〒1080073, JP)
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