Vane pump
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United States of America Patent
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Jun 7, 2011
Grant Date -
Nov 19, 2009
app pub date -
May 19, 2008
filing date -
May 19, 2008
priority date (Note) -
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Abstract
A vane pump comprising a case, a rotor disposed in the case, the rotor having a bore, a plurality of vanes radially moveable with respect to the rotor extend from the rotor, a drive shaft engaged with the bore, a second shaft fixedly connected to the case and extending from the case to slidingly engage the bore, a land extending from each end of the rotor, each land cooperating with the case to seal a fluid flow, and each land further axially controlling a rotor position within the case by a sliding engagement, and the drive shaft retainable in a predetermined position with respect to the case.
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