Title:
FLUID CONTROL VALVE
Document Type and Number:
Japanese Patent JP2019148317
Kind Code:
A
Abstract:
To improve the durability of a seal member of a fluid control valve, and to reduce a size and weight of a drive part.SOLUTION: A valve body 14 is rotatably arranged in an accommodation chamber 24 of a body 12, the valve body 14 is formed into a cross-section elliptical shape when viewed from axial directions of a first shaft part 52 and a second shaft part, an external peripheral face abuts on the seal member 40, and brings about a valve-closed state when a long axis L2 of the valve body become linear with respect to an introduction part 20 and a derivation part 22, and there arises a valve-opened state that the introduction part 20 and the derivation part 22 communicate with each other through a valve hole 56 which penetrates a short axis direction L1 in a state that the long axis L2 is orthogonal to the introduction part 20 and the derivation part 22. Then, by decreasing a slide-contact area between the external peripheral face and the seal member 40 at a start of the opening or closing of a valve body 14, slide resistance can be reduced.SELECTED DRAWING: Figure 3
Inventors:
MASUYA YOHEI
Application Number:
JP2018034483A
Publication Date:
September 05, 2019
Filing Date:
February 28, 2018
Export Citation:
Assignee:
KEIHIN CORP
International Classes:
F16K5/04; F16K39/06
Attorney, Agent or Firm:
Takehiro Chiba
Toshiyuki Miyadera
Takayuki Chima
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Toru Sekiguchi
Toshiyuki Miyadera
Takayuki Chima
Shuji Ouchi
Yasuharu Nakasone
Shiro Sakai
Toru Sekiguchi