Title:
CONTROL VALVE
Document Type and Number:
WIPO Patent Application WO/2018/169068
Kind Code:
A1
Abstract:
The present invention highly maintains, over a long period of time, the sealing performance of a surface of a seal cylindrical member in sliding contact with a valve. A control valve (8) includes a valve housing (21), a joint member (43), a valve body (22), and a seal cylindrical member (111). The joint member (43) and the seal cylindrical member (111) include: first facing portions (rear surface on base side of joining flange 51, end surface 111f) that face each other in the axial direction of the seal cylindrical portion (111); and second facing portions (second connection surface 111e, end surface 30d) that face each other in the axial direction on the radially inward side of the seal cylindrical member (111) with respect to the first facing portions (rear surface on base side of joining flange 51, end surface 111f). A biasing spring (113) is provided to the second facing portions (second connection surface 111e, end surface 30d) so as to be interposed between the joint member (43) and the seal cylindrical member (111), and biases the seal cylindrical member (111) toward the valve body (22).
Inventors:
OZEKI AKIFUMI (JP)
Application Number:
PCT/JP2018/010561
Publication Date:
September 20, 2018
Filing Date:
March 16, 2018
Export Citation:
Assignee:
YAMADA MFG CO LTD (JP)
International Classes:
F16K5/04; F16K11/076; F16K11/085; F16K39/06
Foreign References:
| JP2016196931A | 2016-11-24 | |||
| EP2213850A1 | 2010-08-04 |
Attorney, Agent or Firm:
TAZAKI Akira et al. (JP)
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