Work machine i.e. industrial truck such as fork-lift truck, has drive torque reducing unit comprising stop valves which are switched into lines of hydromotors provided or operated as return lines

摘要

The machine has a hydrostatic traction drive comprising a hydro pump (6) that is driven by an internal combustion engine (7), and two hydromotors (4, 5). The hydromotors are connected to the pump in a hydraulic parallel circuit for driving drive wheels (2, 3) that are arranged at axle ends of a drive axle (1). A drive torque reducing unit reduces the drive torque of the curve-inner drive wheels during driving in curves. The drive torque reducing unit has stop valves (S) which are switched into lines of the hydromotors provided or operated as return lines (R1, R2).