Multi-stage eductor apparatus
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United States of America Patent
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Issued Date -
Mar 24, 2005
app pub date -
Jul 30, 2004
filing date -
Aug 1, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A multi-stage eductor apparatus includes a first stage eductor with an inlet, an outlet, and a venturi throat between the inlet and outlet into which a driving fluid is injected to flow from the outlet and create a suction at the inlet for drawing material into the inlet and through the first stage eductor with the driving fluid, and at least a second stage eductor of the same or similar configuration, with the inlet of the second stage eductor connected directly to the outlet from the first stage eductor, thereby increasing the suction at the inlet to the first stage eductor and maintaining the suction at the inlet to the first stage eductor through a wide range of driving fluid flow rates.
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