Self powered fluid metering units
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United States of America Patent
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Apr 11, 2017
Grant Date -
Oct 30, 2014
app pub date -
Apr 29, 2013
filing date -
Apr 29, 2013
priority date (Note) -
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Abstract
A system includes a metering module that receives fluid through a fluid inlet. The metering module includes a rotating component driven by the fluid, an electric machine, and a controller. The fluid is received from the fluid inlet at an inlet flow rate, and the rotating component provides the fluid to an outlet of the rotating component at an outlet pressure. The electric machine is configured to generate electrical power in response to rotation of the rotating component. The controller is powered by the electrical power generated by the electric machine, and controls a rotational speed of the rotating component to control the outlet pressure.
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