Fluid flow controller having axial needle valve for adjusting the flow rate
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United States of America Patent
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-
Oct 22, 2002
Grant Date -
Oct 17, 2002
app pub date -
Apr 5, 2001
filing date -
Apr 5, 2001
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluid flow regulator in which fluid is passed through an impeller chamber having a pressure differential-operated impeller piston for monitoring changing inlet and outlet fluid pressures to maintain a constant fluid flow rate. A needle valve mounted on the body at one end of the impeller chamber engages an orifice opening to precisely change the fluid flow rate.
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