ADJUSTABLE ROTARY PUMP WITH REDUCED WEAR
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United States of America Patent
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Issued Date -
Oct 25, 2007
app pub date -
Apr 19, 2007
filing date -
Apr 19, 2006
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A rotary pump having a variable delivery volume, comprising: a casing; a delivery chamber formed in the casing; at least one delivery rotor which is rotatable in the delivery chamber; an actuating member which is arranged facing a front face of the delivery rotor or surrounds the delivery rotor, and is moveable in the casing for adjusting the delivery volume; the actuating member chargeable with an actuating force which is dependent on a fluid requirement; a track which is formed in the casing and guides the actuating member on an actuating member sliding surface in a sliding contact; and a sliding material which forms at least one of the track and the actuating member sliding surface.
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