Title:
TURBINE
Document Type and Number:
WIPO Patent Application WO/2021/153556
Kind Code:
A1
Abstract:
This turbine is provided with: a rotor which comprises a rotary shaft capable of rotating on a shaft line and a moving blade row provided to the outer circumferential surface of the rotary shaft; a casing which covers the rotor from the outer circumferential side and which has a casing inner circumferential surface that extends radially further outward toward the downstream side in the shaft line direction; and an inner circumferential member body which covers the casing inner circumferential surface from the inner circumferential side so as to form a bleeding port on the upstream side between said inner circumferential member body and the casing inner circumferential surface and a discharge port on the downstream side. The bleeding port and the discharge port are each formed in an annular shape centering on the shaft line, and the discharge port has a flow passage cross-sectional area that is set to be smaller than that of the bleeding port.
Inventors:
KUWAMURA YOSHIHIRO (JP)
OOKURA SHIGEO (JP)
MIZUMI SHUNSUKE (JP)
DUAN CHONGFEI (JP)
SUGISHITA HIDEAKI (JP)
MATSUMOTO KAZUYUKI (JP)
OMURA NAOTO (JP)
OOKURA SHIGEO (JP)
MIZUMI SHUNSUKE (JP)
DUAN CHONGFEI (JP)
SUGISHITA HIDEAKI (JP)
MATSUMOTO KAZUYUKI (JP)
OMURA NAOTO (JP)
Application Number:
PCT/JP2021/002635
Publication Date:
August 05, 2021
Filing Date:
January 26, 2021
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
International Classes:
F01D25/30; F01D9/02
Domestic Patent References:
| WO2014010287A1 | 2014-01-16 |
Foreign References:
| US20100226767A1 | 2010-09-09 | |||
| DE10255389A1 | 2004-06-09 | |||
| JP2011220125A | 2011-11-04 | |||
| JP2011169172A | 2011-09-01 | |||
| JPS5965907U | 1984-05-02 | |||
| JP2017008756A | 2017-01-12 | |||
| JP2007120499A | 2007-05-17 | |||
| JPH08260905A | 1996-10-08 |
Attorney, Agent or Firm:
MATSUNUMA Yasushi et al. (JP)
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