Hydraulic system for controlling a work implement
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United States of America Patent
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Jul 21, 2015
Grant Date -
Jun 27, 2013
app pub date -
Dec 23, 2011
filing date -
Dec 23, 2011
priority date (Note) -
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Abstract
A hydraulic system includes a first hydraulic circuit and a second hydraulic circuit. The first hydraulic circuit includes a hydraulic cylinder assembly, a pressurized fluid source, a fluid tank, and a metering control valve. The hydraulic cylinder assembly includes a cylinder, a rod, a head end including a head pressure, and a rod end including a rod pressure. The metering control valve includes a rod extension position, and a rod retraction position, and is fluidly connected to the head end, the rod end, the fluid source, and the fluid tank. The second hydraulic circuit includes a second circuit valve assembly selectively fluidly connected to the head end, the rod end, and the fluid tank.
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