Hydraulic directional-control device with single lever for vehicle
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United States of America Patent
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-
Jan 19, 1999
Grant Date -
N/A
app pub date -
Apr 9, 1997
filing date -
Apr 16, 1996
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Hydraulic device for directional control of a vehicle using a single lever. The device includes a hydraulic manipulator (1) with four outlets, forward/reverse and right/left. A selection device (4) with four selectors (5) in a bridge is connected to the manipulator, and the outputs are connected to four motors for reverse-left, forward-left and reverse-right and forward-right control of the running components of the vehicle. A slide valve (7) with two positions, respectively one with direct connections and one with crossed connections, is inserted into the two feed lines of the motors (6 AVG, 6 AVD or respectively 6 ARG, 6 ARD). A control input (10) of the slide valve is connected to the FORWARD and REVERSE outputs of the manipulator, by virtue of which the control of the vehicle remains fully ergonomic, including for a rotation of the vehicle about a central vertical axis.
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Family
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Cited Art Landscape
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