Hydrostatic traction drive system
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United States of America Patent
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Jun 12, 2018
Issued Date -
May 26, 2016
app pub date -
Oct 30, 2015
filing date -
Nov 26, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A hydrostatic traction drive system of a mobile machine has a first hydraulic traction motor associated with a first vehicle side and a second hydraulic traction motor associated with a second vehicle side. The hydraulic traction motors are operated in an open circuit and are jointly supplied with hydraulic fluid by a single hydraulic pump. The first hydraulic traction motor is controlled by a first control valve and the second hydraulic traction motor is controlled by a second control valve. The first hydraulic traction motor and the second hydraulic traction motor are each variable displacement motors with an electrically variable displacement volume, and the first control valve and the second control valve are electrically actuatable control valves.
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