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Patent Searching and Data


Title:
VALVE DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/087843
Kind Code:
A1
Abstract:
Provided is a valve device in which a plurality of fluids having flowed in a primary side flow path can be divided, at a secondary side, into multiple flows, while the size of the device is kept compact. Valve elements (2A, 2B) each comprise a valve seat (16), a valve seat support (50), and a diaphragm (14) that is disposed so as to abut on/be separated from the seat surface of the valve seat (16). The diaphragm (14) connects a circulation flow path (16a) in the valve seat (16) to a corresponding secondary side flow path (24) through a gap between the diaphragm (14) and the valve seat (16). The valve seat support (50) has: sealing surfaces (50b2, 50b3) that block the connection between a corresponding primary side flow path (21) and a corresponding secondary side flow path (24) in cooperation with a portion of the inner wall surface of a corresponding accommodation recess (22); and a bypass flow path (50a) for connecting the primary side flow path (21) and the circulation flow path (16a). A valve body (20) defines a connecting flow path (24C) for connecting secondary side flow paths (24A, 24B) to each other.

Inventors:
WATANABE Kazunari (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
SHIGYOU Kohei (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
AIKAWA Kenji (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
NAKATA Tomohiro (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
MATSUDA Takahiro (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
SHINOHARA Tsutomu (3-2 Itachibori 2-chome, Nishi-k, Osaka-city Osaka 12, 〒5500012, JP)
Application Number:
JP2018/039162
Publication Date:
May 09, 2019
Filing Date:
October 22, 2018
Export Citation:
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Assignee:
FUJIKIN INCORPORATED (3-2 Itachibori 2-chome, Nishi-ku Osaka-city Osaka, 12, 〒5500012, JP)
International Classes:
F16K27/02; F16K7/12
Foreign References:
JPH06258200A1994-09-16
JP2014190387A2014-10-06
JPH10311451A1998-11-24
JP2008106811A2008-05-08
JPH1047514A1998-02-20
JP2015036563A2015-02-23
JPH03168494A1991-07-22
JP2003021248A2003-01-24
Attorney, Agent or Firm:
FUJIMOTO Kenji (6-1-4-905, Takasu Urayasu-city Chiba, 23, 〒2790023, JP)
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