Vehicle with hydraulic assistance by transmitting torque from a driving axle to a driven axle
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United States of America Patent
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Mar 28, 2017
Grant Date -
Sep 10, 2015
app pub date -
Sep 19, 2013
filing date -
Sep 28, 2012
priority date (Note) -
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status (Latency Note)
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Abstract
A vehicle including a driving axle (10), a driven axle (20), a hydraulic pump (14) and a hydraulic motor (24) providing hydraulic assistance for driving the driven axle (20) by lapping off torque applied to the driving axle (10). The driving axle (10) comprising includes a differential (11) thus defining two output half axles on which wheels are mounted. Rotation of the box allows the output half axles to be rotationally driven at distinct speeds. The hydraulic pump (14) includes a rotor and a stator, the stator being mounted fixed with respect to the chassis and the rotor being connected to and rotating as one with the differential box (11). The hydraulic pumps (14) are rotationally driven at a speed equal to the average speed of the two half axles associated with the differential (11) on which the pump is mounted.
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