FLUID CONTROL VALVE
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United States of America Patent
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N/A
Issued Date -
Nov 27, 2014
app pub date -
Oct 4, 2012
filing date -
Dec 28, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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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 annula 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.
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