Title:
FLUID CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2017/073439
Kind Code:
A1
Abstract:
Provided is a fluid control valve having a structure suitable for removing exhaust from a pressure chamber of a fluid pressure actuator and reusing the exhaust. The fluid control valve comprises: an air supply flow path (14) that connects a first port (11) and a second port (12); an exhaust flow path (15) that connects the second port (12) and a third port (13); a first check valve (20) provided to the air supply flow path (14); a second check valve (21) provided to the exhaust flow path (15); a valve body (30) for opening and closing the connection from the second port (12) to the third port (13); and a valve hole (22) into which the valve body (30) is inserted so as to be slidable in the axial direction thereof. The exhaust flow path (15) is formed by a gap (15b) formed between the valve hole (22) and the valve body (30). The valve body (30) has formed therein: a first pressure-receiving surface that causes the fluid pressure of the first port (11) to act in the closing direction of the valve body (30); and a second pressure-receiving surface that causes the fluid pressure of the second port (12) to act in the opening direction of the valve body (30).
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Inventors:
YAMADA HIROSUKE (JP)
SHISHIDO KENJI (JP)
SHISHIDO KENJI (JP)
Application Number:
PCT/JP2016/081039
Publication Date:
May 04, 2017
Filing Date:
October 20, 2016
Export Citation:
Assignee:
SMC CORP (JP)
International Classes:
F15B11/00; F15B11/024; F15B21/14; F16K31/122
Foreign References:
| JPH10153269A | 1998-06-09 | |||
| US20140360349A1 | 2014-12-11 |
Attorney, Agent or Firm:
HAYASHI Hiroshi et al. (JP)
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