FLUID CONTROL DEVICE

WIPO Patent Application WO/2022/091313

A1

This fluid control device (1) controls the flow of a fluid, and comprises: a flow passage (4) that has an inlet (2) and an outlet (3), and through which a fluid under control flows; a valve body (5) that is positioned in the flow passage (4), partway between the inlet (2) and the outlet (3); a valve seat (6) where the valve body (5) can be seated; an elastic member (7) that biases the valve seat (6) or the valve body (5) in an approaching direction or a separating direction of the valve body (5) and the valve seat (6); and a working fluid chamber (8) in which, due to the supply or discharge of a working fluid, expansion or contraction occurs in the separating direction or the approaching direction of the valve body (5) and the valve seat (6), wherein at least a portion of the valve body (5) is present on the line of extension of a flow passage center axis (CL2), which is a straight line and is on the inlet (2) side of the flow passage (4) with regard to the valve body (5) and the valve seat (6), and on the line of extension of a flow passage center axis (CL3), which is a straight line and is on the outlet side (3), and either the valve seat (6) or the valve body (5) can be displaced in the axial direction of the flow passage center axis (CL2) that is a straight line and is on the inlet (2) side, and/or in the axial direction of the flow passage center axis (CL3) that is a straight line and is on the outlet (3) side.

NAGASHIMA TSUYOSHI (JP)
TAMARIBUCHI SEIYA (JP)

PCT/JP2020/040716

May 05, 2022

October 29, 2020

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MIRAIAL CO LTD (JP)

F16K1/00

WO2009037724A1

2009-03-26

JP2015526675A	2015-09-10
JPS5645660U	1981-04-23
JPS5166526A	1976-06-09

AXIS PATENT INTERNATIONAL (JP)

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