Title:
VALVE AND VAPOR TURBIBE FACILITY
Document Type and Number:
WIPO Patent Application WO/2017/200067
Kind Code:
A1
Abstract:
A valve is provided with: a valve rod; a first valve body provided on the front end side of the valve rod and configured to be driven through the valve rod; a first valve seat on which the first valve body can sit; an auxiliary seat surface extending in the direction intersecting the axial direction of the valve rod; an auxiliary seat section provided closer to the base end side of the valve rod than the first valve body and configured so as to come into contact with the auxiliary seat surface when the first valve body is closed; and a pressing member capable of generating pressing force acting in the axial direction of the valve rod. Either the first valve body or the auxiliary seat section can be displaced in the axial direction relative to the valve rod and is pressed by the pressing member toward either the first valve body or the auxiliary seat surface.
Inventors:
HATA MASAKI (JP)
OKAWARA SHOICHI (JP)
KAWAMURA KAZUHITO (JP)
OKAWARA SHOICHI (JP)
KAWAMURA KAZUHITO (JP)
Application Number:
PCT/JP2017/018760
Publication Date:
November 23, 2017
Filing Date:
May 19, 2017
Export Citation:
Assignee:
MITSUBISHI HITACHI POWER SYS (JP)
International Classes:
F16K1/32; F01D17/10; F01D25/00; F16K1/34; F16K1/44
Foreign References:
| JP2012021568A | 2012-02-02 | |||
| JP2003329158A | 2003-11-19 | |||
| JPS58134284A | 1983-08-10 | |||
| JPS57144354A | 1982-09-06 | |||
| JPH05965U | 1993-01-08 | |||
| JPS5037027A | 1975-04-07 | |||
| JPH02125285U | 1990-10-16 |
Attorney, Agent or Firm:
SEISHIN IP PATENT FIRM, P.C. (JP)
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