Title:
PILOT CHECK VALVE
Document Type and Number:
WIPO Patent Application WO/2016/056280
Kind Code:
A1
Abstract:
A pilot check valve (10) according to the present invention comprises: a fluid channel body (16); a moveable body (85) that moves in an axial direction under the effects of pilot pressure; a packing (20) comprising a lip portion (62) that is displaceable, integrally with the moveable body (85), between a valve close position and a valve open position; and a detector (25) for detecting the position of the moveable body (85). The packing (20), in the valve close position, allows the flow of an operating liquid from a first port (12) side of the fluid channel body (16) to a second port (14) side and prevents the flow of the operating liquid from the second port (14) side to the first port (12) side, andin the valve open position, connects the first port (12) and the second port (14).
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Inventors:
YO SEIKAI (JP)
YAMADA HIROSUKE (JP)
YAMAMOTO HITOSHI (JP)
YAMADA HIROSUKE (JP)
YAMAMOTO HITOSHI (JP)
Application Number:
PCT/JP2015/069601
Publication Date:
April 14, 2016
Filing Date:
July 08, 2015
Export Citation:
Assignee:
SMC CORP (JP)
International Classes:
F16K15/14; F16K37/00; F16K15/18
Foreign References:
| JPS57129970A | 1982-08-12 | |||
| JPH0425077U | 1992-02-28 | |||
| US20040144938A1 | 2004-07-29 |
Other References:
See also references of EP 3205915A4
Attorney, Agent or Firm:
CHIBA Yoshihiro et al. (JP)
Takehiro Chiba (JP)
Takehiro Chiba (JP)
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