HYDRAULIC CONTROL CIRCUIT
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United States of America Patent
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Issued Date -
Jul 25, 2013
app pub date -
Jul 27, 2012
filing date -
Jul 29, 2011
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention relates to a hydraulic circuit including: a variable displacement pump, a booster pump, a pump control controlling the displacement of the variable displacement pump, supplied by the booster pump via pressure control means, the pump control including a double-acting cylinder including a first chamber and a second chamber, wherein the first chamber is connected to said booster pump via a first setting line including pressure reducing means, the second chamber is connected to said booster pump via a second setting line including a proportional pressure reducer, such that control of the proportional pressure reducer controls the displacement of the variable displacement pump.
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