Gas turbine transition seal with hole through seal plate in groove of nozzle

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 10655488
APP PUB NO 20180058234A1
SERIAL NO

15678805

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ATTORNEY / AGENT: (SPONSORED)

Importance

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Abstract

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In a gas turbine in which a seal member seals a gap between a transition piece and a nozzle end wall in a turbine first stage, the transition piece and the nozzle end wall has a seal groove. The seal member includes a hook portion that slides in the turbine radial direction with respect to the flange and a seal plate portion inserted in the groove. The groove and the portion are configured to include a surface contact region in which a surface of the groove and the portion are in surface contact with each other, a non-contact region disposed on a side closer to the transition piece than the region, and a hole provided at the portion so as to face the surface in the groove across a gap in the region.

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First Claim

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Patent Owner(s)

  • MITSUBISHI HITACHI POWER SYSTEMS, LTD.

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Higuchi, Shinichi Yokohama, JP 44 725
Horiuchi, Yasuhiro Yokohama, JP 34 366
Miura, Takemitsu Yokohama, JP 8 77
Shingai, Kenji Yokohama, JP 1 1
Tagawa, Hisato Yokohama, JP 5 44

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