Fluid control valve
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United States of America Patent
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Jan 5, 2010
Grant Date -
Feb 5, 2009
app pub date -
Jan 17, 2006
filing date -
Feb 2, 2005
priority date (Note) -
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Abstract
An object of the present invention is to obtain a quick-response fluid control valve.A fluid control valve includes a pressure chamber including an output port; an air supply nozzle and an air exhaust nozzle which are communicatively connected to the pressure chamber and positioned on a common straight line; a flapper assembly which is movable between the air supply nozzle and the air exhaust nozzle and includes a pair of opening/closing control surfaces that face an opening end of the air supply nozzle and an opening end of the air exhaust nozzle, respectively; and a flapper-assembly moving mechanism which moves the flapper assembly so that a distance between the opening end of the air supply nozzle and one of the pair of opening/closing control surfaces increases while a distance between the opening end of the air exhaust nozzle and the other of the pair of opening/closing control surfaces decreases.
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