Title:
STEAM VALVE AND STEAM TURBINE SYSTEM
Document Type and Number:
WIPO Patent Application WO/2017/082163
Kind Code:
A1
Abstract:
A steam valve, which is housed with a valve casing inside a valve compartment, is provided with: a first valve body; a second valve body; a second valve rod; a first valve rod; a first actuator capable of imparting a vertical first urging force to the first valve rod; a second actuator capable of imparting a vertical second urging force to the second valve rod; a first link mechanism provided between the first actuator and the first valve rod and capable of transmitting the first urging force; a second link mechanism which is provided between the second actuator and the second valve rod, is capable of transmitting the second urging force, and has a linking part provided integrally with the second valve rod and a lever coupled by a pin with the linking part; and a guide mechanism capable of regulating horizontal displacement of the linking part when the linking part vertically moves in manner corresponding to the tilting of the lever.
Inventors:
FUTAHASHI KENSUKE (JP)
KANAZAWA HIROYUKI (JP)
IMAOKA KENGO (JP)
HAMADA KATSUHISA (JP)
KANAZAWA HIROYUKI (JP)
IMAOKA KENGO (JP)
HAMADA KATSUHISA (JP)
Application Number:
PCT/JP2016/082784
Publication Date:
May 18, 2017
Filing Date:
November 04, 2016
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F01D17/10; F01D25/00; F16K1/32; F16K1/44
Domestic Patent References:
| WO2011000733A1 | 2011-01-06 |
Foreign References:
| JP2002097903A | 2002-04-05 | |||
| JPS5230558U | 1977-03-03 | |||
| JPH0315606A | 1991-01-24 | |||
| JPH06185305A | 1994-07-05 | |||
| DE2948639A1 | 1981-06-11 | |||
| US5971018A | 1999-10-26 | |||
| DE2533519A1 | 1977-03-31 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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