Title:
FLOW RATE CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2020/170721
Kind Code:
A1
Abstract:
[Problem] To provide a flow rate control valve capable of effectively reducing a differential pressure applied to a valve body.
[Solution] A flow rate control valve 1 comprises: a bottomed cylindrical base member 10 that is provided with a valve chamber 13; and a valve body 6 that is arranged facing a valve opening 15 provided on a bottom wall part 12 of the base member 10. A back pressure chamber 23 separated from the valve chamber 13 is provided on the outside of the base member 10. An inflow opening 19 opening into the valve chamber 13 is provided on a base member body part 11 of the base member 10. A flow path 16 that is in communication with the valve opening 15 and a pressure equalization hole 17 that connects the flow path 16 and the outside of the base member 10 to each other are provided on the bottom wall part 12 of the base member 10. Further, when seen from a direction in which the valve body 6 and the valve opening 15 face each other, the pressure equalization hole 17 is arranged so as to be deviated from a position on a central line M of the inflow opening 19 and a position facing the inflow opening 19.
Inventors:
HISHIYA KOHEI (JP)
Application Number:
PCT/JP2020/002715
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 | |||
| JP2015152164A | 2015-08-24 | |||
| JPH0215164B2 | 1990-04-11 |
Other References:
See also references of EP 3929476A4
Attorney, Agent or Firm:
OPUS IP LAW FIRM (JP)
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