Title:
FLOW CONTROL VALVE AND ASSEMBLY METHOD FOR SAME
Document Type and Number:
WIPO Patent Application WO/2020/170720
Kind Code:
A1
Abstract:
[Problem] To provide: a flow control valve that makes it possible to effectively decrease the differential pressure applied to a valve element in a movement direction without constraints on the shape of the valve element; and an assembly method for the flow control valve. [Solution] A flow control valve 1 in which a lower end 20a of an outer cylinder member 20 is plugged by a base member 10 and an upper end 20b of the outer cylinder member 20 is plugged by a holder body 71 to form a back pressure chamber 23 that is separated from a valve chamber 13. A drive shaft 64 is arranged to span the valve chamber 13 and the back pressure chamber 23. A passage 16 that goes to a valve opening 15 and a pressure equalization hole 17 that connects said passage 16 and the back pressure chamber 23 are provided in the base member 10.
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Inventors:
HISHIYA KOHEI (JP)
Application Number:
PCT/JP2020/002714
Publication Date:
August 27, 2020
Filing Date:
January 27, 2020
Export Citation:
Assignee:
FUJIKOKI CORP (JP)
International Classes:
F16K27/02; F16K39/02
Foreign References:
| JP2018159433A | 2018-10-11 |
Attorney, Agent or Firm:
OPUS IP LAW FIRM (JP)
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