Drive transmission system and method
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United States of America Patent
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Apr 14, 2015
Grant Date -
May 22, 2014
app pub date -
Nov 19, 2012
filing date -
Nov 19, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A drive system and method includes a gearbox system, a first hydraulic motor driving a first input shaft, a second hydraulic motor driving a second input shaft, a drive pump driving the first and second hydraulic motors, and a system control for controlling the drive pump, the clutch assembly, and the first and second hydraulic motors. The gearbox system includes the first input shaft having a first input gear driving a first output gear on an output shaft, the second input shaft having a second input gear driving a second output gear disengageable from the output shaft, and a clutch assembly for engaging the second output gear with the output shaft. The clutch assembly includes a clutch to engage the second output gear with the output shaft, and a fluid access channel through a rotary manifold to provide pressurized fluid to activate the clutch.
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