Title:
VALVE WITH ORIFICE, AND FLOW RATE CONTROL DEVICE
Document Type and Number:
WIPO Patent Application WO/2023/053724
Kind Code:
A1
Abstract:
[Problem] To provide a valve with an orifice that is miniaturized while ensuring a required flow rate, that has improved maintainability and sealing performance, and that is reduced in cost. [Solution] A valve with an orifice including a diaphragm 70 for opening and closing a flow path, an orifice plate 40 in which an orifice 40h is formed, a first orifice base 20 that supports the orifice plate 40 and has a through-hole 20a, a second orifice base 30 that has a valve seat 30b provided around a through-hole 30a and that together with the first orifice base 20 holds the orifice plate 40 therebetween, and an inner member 50 having a plurality of through-holes 50d into which flows a fluid that has passed between the valve seat 30b and the diaphragm 70, the second orifice base 30 and the inner member 50 having, in contact parts that come into contact with each other, a plurality of flow paths CH1 that guide the fluid from the plurality of through-holes 50d to a secondary flow path 15.
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| JPH1137326 | DIAPHRAGM TYPE TEMPERATURE/PRESSURE RELIEF VALVE |
| JP5354228 | Valve seal |
| WO/1991/019096 | A FLUID VALVE DEVICE AND A POSITIVE-DISPLACEMENT PUMP |
Inventors:
SHIGYOU KOHEI (JP)
HIROSE TAKASHI (JP)
MATSUDA TAKAHIRO (JP)
WATANABE KAZUNARI (JP)
HIROSE TAKASHI (JP)
MATSUDA TAKAHIRO (JP)
WATANABE KAZUNARI (JP)
Application Number:
PCT/JP2022/030246
Publication Date:
April 06, 2023
Filing Date:
August 08, 2022
Export Citation:
Assignee:
FUJIKIN KK (JP)
International Classes:
F16K7/16; F16K47/08
Foreign References:
| JP2000213667A | 2000-08-02 | |||
| JPH11101352A | 1999-04-13 | |||
| JP2010151698A | 2010-07-08 | |||
| JP2015138338A | 2015-07-30 |
Attorney, Agent or Firm:
KEN IP LAW FIRM (JP)
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