Reversible gerotor pump
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United States of America Patent
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May 27, 2014
Grant Date -
Jul 12, 2012
app pub date -
Dec 1, 2011
filing date -
Jan 6, 2011
priority date (Note) -
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status (Latency Note)
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Abstract
A reversible gerotor pump for a machine having a drive shaft is provided, the pump including a housing, an offset ring, and an inner and outer gear. The offset ring is disposed in the housing and includes a tab extending radially from an outer periphery. The outer periphery of the offset ring defines a first axis in common with the axis of a drive shaft. The inner periphery of the offset ring defines a second axis that is slightly offset from the second axis. The axis of the outer gear moves relative to the axis of the inner gear to allow pumping action in both rotational directions using the same suction and line cavities for both directions.
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