HYDROSTATIC TRANSMISSION APPARATUS IMPARTING HIGH DRIVABILITY
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United States of America Patent
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Issued Date -
May 8, 2014
app pub date -
Apr 18, 2012
filing date -
Apr 18, 2011
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A hydrostatic transmission apparatus for a vehicle having at least two wheels, the second wheel being steerable, may include a main hydraulic pump, two hydraulic motors driving respective ones of the wheels, detection means for detecting that the second wheel is turned by being steered, a first synchronization duct between the first and second motors, and re-feed means for re-feeding the first synchronization duct, and suitable for acting, while the second motor is being fed by the first motor via the first synchronization duct, and when the second wheel is turned by being steered, to inject fluid into the first synchronization duct while limiting the pressure in said synchronization duct to a pressure less than a re-feed pressure that is significantly less than the high pressure of the pump.
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