Hydraulic drive system
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United States of America Patent
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Apr 10, 2012
Grant Date -
Apr 23, 2009
app pub date -
Sep 25, 2008
filing date -
Sep 28, 2007
priority date (Note) -
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Abstract
The present invention relates to a hydraulic drive system for driving an apparatus, with a drive unit, a first and a second hydraulic displacement machine, with which the drive unit is connectable or connected for transmitting mechanical energy, and a third and a fourth hydraulic displacement machine, which are connectable or connected with the apparatus for transmitting mechanical energy, wherein the first hydraulic displacement machine is hydraulically connected or connectable with the third hydraulic displacement machine, and wherein a high-pressure accumulator is provided, which is hydraulically connected or connectable with the second and the fourth hydraulic displacement machine.
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