Control system for recovering swing motor kinetic energy
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United States of America Patent
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Mar 22, 2011
Grant Date -
Sep 3, 2009
app pub date -
Feb 28, 2008
filing date -
Feb 28, 2008
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Abstract
This disclosure relates to a hydraulic system and method that converts the kinetic energy generated by the operation of a swing motor into hydraulic potential energy and reuses the hydraulic potential energy for swing motor acceleration. An accumulator can be provided for storing exit oil from the swing motor that is pressurized by the inertia torque applied on the moving motor via movement of an upper structure of a machine. The pressurized oil in the accumulator can be reused to accelerate the swing motor by supplying pressurized oil to the swing motor.
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