Hydrostatically driven vehicle with adjustable axial piston pump - has control lever positioned by valve with safety switches linked to resetting pedal and accelerator pedal

摘要

The control lever (32) setting the stroke of the axial pistons (26) is coupled (48) to a pressure cylinder (44) which pivots it against the restoring force from a rocking cradle (28). The double-acting cylinder (44) is actuated by fluid from the pressure line (60) via a four/three-way electromagnetic valve (62) responsive to the operation of a reversing lever (162) with two safety switches (170,172). ADVANTAGE - Comfortable operation is possible with pump power adapted precisely to speed/torque characteristic of combustion engine.