Variable displacement variable pressure vane pump system
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United States of America Patent
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May 21, 2013
Grant Date -
Sep 2, 2010
app pub date -
Jan 31, 2007
filing date -
Jan 31, 2006
priority date (Note) -
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Abstract
A variable displacement variable pressure vane pump system provides lubrication oil to a mechanical system. The pump system includes a first control mechanism to apply a force to a control slider to counter a biasing force of a biasing spring and urge the control slider away from a position corresponding to a maximum displacement position of the pump. A second control mechanism applies a force to the control slider to alter the displacement of the pump. A control varies the supply of lubrication oil to the second control mechanism to alter the output of the pump to closely correspond to the lubrication requirements of the mechanical system.
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