FLUID CONTROL VALVE - NIPPON THERMOSTAT KK

Title:

FLUID CONTROL VALVE

Document Type and Number:

WIPO Patent Application WO/2013/099386

Kind Code:

A1

Abstract:

[Problem] In a fluid control valve, to make it possible to minimize the phenomenon of valve body fluttering and prevent resulting vibration and any consequent defects such as damage or wear to peripheral components, e.g., a rod, piston, or E-ring, housing-side wear or deformation, or breakage of a coil spring, and abnormal noise. [Solution] A fluid control valve (28) provided with a valve body (13) supported in a state of having been urged by a coil spring (19) on the distal end of a rod section (18) reciprocatingly driven from a direction orthogonal to a valve seat section (26), and configured so as to control the flow of fluid in a valve chamber (21), fluid channel (25), or the like. An annular convexity (32) for minimizing the channel length of a narrowing portion of the fluid channel, which is opened and closed by the fluid control valve, is provided to a seat section of the valve seat section and/or valve body so that the channel length of the narrowing portion of the fluid channel, constituted by the valve body and the valve seat section, reaches a minimum.

Inventors:

UENO SHOZO (JP)
ONUMA KEIKI (JP)
NISHINO YOSHINORI (JP)

Application Number:

PCT/JP2012/075769

Publication Date:

July 04, 2013

Filing Date:

October 04, 2012

Export Citation:

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Assignee:

NIPPON THERMOSTAT KK (JP)
UENO SHOZO (JP)
ONUMA KEIKI (JP)
NISHINO YOSHINORI (JP)

International Classes:

F16K1/36; F01P7/16; F16K1/42; F16K17/04; F16K31/68

Foreign References:

JPH0341123U	1991-04-19
JPS59101066U	1984-07-07
JP2004340275A	2004-12-02
JPH0610673U	1994-02-10
JP2001248743A	2001-09-14
JPH0622673U	1994-03-25
JPH0564583U	1993-08-27
JP2009074607A	2009-04-09
JPH0341123U	1991-04-19

Other References: