Energy regeneration system for machines
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United States of America Patent
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Jul 22, 2008
Grant Date -
May 4, 2006
app pub date -
Dec 12, 2005
filing date -
Nov 14, 2003
priority date (Note) -
Expired
status (Latency Note)
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Abstract
First and second displacement variable regenerating hydraulic motors are provided in third and fourth flow rate control lines which function as discharge flow paths for oil discharged, respectively, from first and second oil supply and discharge ports of a hydraulic motor, where controlling the displacement of the regenerating hydraulic motors allows the flow rate of discharge oil as well as the pressure of the third and fourth flow rate control lines to be controlled. First and second generators which generate electric power due to the rotation of the first and second regenerating hydraulic motors are further provided.
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