Title:
CHECK VALVE AND VALVE DEVICE HAVING SAME
Document Type and Number:
WIPO Patent Application WO/2020/105380
Kind Code:
A1
Abstract:
Provided are: a check valve which can be connected to pipes having various diameters while reducing costs; and a valve device. This check valve 1, which can connect couplers 7, 8 connected to fluid pipes T1, T2, has: a check valve body 2 provided with fluid passages 21-25 and a valve seat ST penetrated by the fluid passages; a valve body 3 which can be seated on the valve seat ST; a spring member 5 that biases the valve body 3 toward the valve seat ST; and a support member 4 that supports the spring member 5 with respect to the check valve body 2, wherein the check valve body 2 is a single component and has, on the end section of the fluid passage, a connection part 25 for connecting the coupler 8, the minimum inner diameter φ1 of the fluid passages from the valve seat ST to the connection part 25 is larger than the maximum outer diameter φ2 of the valve body 3, and the coupler 8 connected to the connection part 25 is spaced apart from the support member 4 held by the check valve body 2.
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| WO/2013/141555 | GAS CONTROL VALVE FOR FUEL TANK |
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Inventors:
MOCHIZUKI ATSUSHI (JP)
FUKUYAMA KOHEI (JP)
FUKUYAMA KOHEI (JP)
Application Number:
PCT/JP2019/042377
Publication Date:
May 28, 2020
Filing Date:
October 29, 2019
Export Citation:
Assignee:
FUJIKOKI CORP (JP)
International Classes:
F16K15/02; F16K27/02
Foreign References:
| JPH0464673U | 1992-06-03 | |||
| JPH067236Y2 | 1994-02-23 | |||
| JP4563753B2 | 2010-10-13 |
Attorney, Agent or Firm:
PATENT CORPORATE BODY DAI-ICHI KOKUSAI TOKKYO JIMUSHO (JP)
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