WHEELED VEHICLE STEERING GEAR Russian patent published in 1999 - IPC

FIELD: transport engineering; vehicles with hydraulically controlled front and rear steerable wheels. SUBSTANCE: wheeled vehicle steering gear has three-position distributor hydraulically coupled with pump and hydraulic tank and with working spaces of slave hydraulic cylinders of front and rear steerable wheels. Main distributor is also kinematically coupled with steering wheel and rod of slave mechanism of front steerable wheels. Slave mechanism of rear steerable wheels is kinematically coupled with neutral position stabilizer of rear steerable wheels. Auxiliary distributor is installed in hydraulic line between main distributor and slave hydraulic cylinder of rear steerable wheels and is controlled by steering wheel turning angle transmitter being essentially a permanent magnet installed on movable part of steering linkage, and three ferreed contacts secured on vehicle body along permanent magnet displacement path so that permanent magnet is arranged opposite to ferreed contact when front steerable wheels are in neutral position, and opposite to one of two extreme ferreed contacts with steering wheel turned through angle corresponding to turning of front steerable wheels through angle of 0.1 rad. EFFECT: enhanced stability of vehicle and its maneuverability. 1 dwg