Hydraulic drive for Four-wheel drive industrial vehicle, has individual wheel motors series connected on each side, forming two parallel hydraulic circuits

摘要

The fork-lift truck with rear wheel steering. The prime mover (17) drives a hydraulic pump (18) associated with a reservoir (19). The hydraulic connections pass through a driver-operated reversing valve (25) connected on the load side (27a,27b) to the parallelling points of two series circuits, one (26a) serving in series the individual hydraulic motors (22a,23a) associated with the respective vehicle sides.