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Patent Searching and Data


Title:
GEOTHERMAL TURBINE
Document Type and Number:
WIPO Patent Application WO/2018/146946
Kind Code:
A1
Abstract:
Provided is a geothermal turbine equipped with a rotor, a casing for housing the rotor, a plurality of moving blades disposed around the rotor, a plurality of stationary blades supported on the casing, and at least one seal part provided in the gap between the rotor and the casing upstream of the first-stage moving blade so as to seal off leaked steam flowing toward the inner side of the rotor in the radial direction from between the first-stage stationary blade in the plurality of stationary blades and the first-stage moving blade in the plurality of moving blades, the geothermal turbine being provided with a steam passage which is configured so as to extract a portion of the steam that has passed the first-stage stationary blade and to pass the steam through the interior of the first-stage stationary blade and discharge the steam into the gap.

Inventors:
TAKATA, Ryo (C/O MITSUBISHI HEAVY INDUSTRIES LTD, 16-5, Konan 2-Chome, Minato-k, Tokyo 15, 〒1088215, JP)
TSUCHIYA, Mitsuyoshi (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
SHIBATA, Yu (C/O Mitsubishi Hitachi Power Systems Ltd, 3-1, Minatomirai 3-Chome, Nishi-ku, Yokohama-sh, Kanagawa 01, 〒2208401, JP)
Application Number:
JP2017/045433
Publication Date:
August 16, 2018
Filing Date:
December 19, 2017
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:
F01D11/04; F01D9/02; F01D9/04; F01D25/00; F01K21/00; F03G4/00; F16J15/447
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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