MULTI-DISCHARGE HYDRAULIC VANE PUMP
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United States of America Patent
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Issued Date -
Jun 20, 2013
app pub date -
Dec 16, 2011
filing date -
Dec 16, 2011
priority date (Note) -
Abandoned
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Abstract
A hydraulic vane pump includes a pump body defining an interior pumping chamber, an inlet port, and at least one discharge port. A cam ring is disposed within the interior pumping chamber and defines a continuous peripheral cam surface. A rotor is mounted for axial rotation within the interior pumping chamber. A plurality of vanes are mounted for radial movement within slots formed in the rotor. The pump includes axially opposed first and second wear disks disposed within the interior pumping chamber. The first wear disk is a floating wear disk and has an outer periphery which is positioned radially inward of the cam surface and is adapted and configured to slide axially with respect to the cam surface. The second wear disk is positioned adjacent to a second end surface of the rotor.
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