Modulating electric liquid metering valve with flow sensing
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United States of America Patent
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Apr 5, 2016
Grant Date -
Apr 24, 2014
app pub date -
Oct 18, 2012
filing date -
Oct 18, 2012
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Abstract
A fluid flow valve includes a movable valve piston positioned in a valve body, the valve piston configured to flow a fluid therethrough. A metering window is interactive with the movable valve piston to meter flow through the movable valve piston. A flow meter is positioned at the valve piston to measure a flow rate of fluid through the valve piston. A valve controller is operable connected to the flow meter and the movable valve piston to control position of the valve piston based on flow rate measured at the flow meter.
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