Engaging device for hydraulically adjustable steering axle, has directional valve whereby by opening this directional valve pressure drop in piston chambers takes place and force acting on piston surface drops below reset force

摘要

Engaging device has a directional valve (21) attached to the steering axle and by opening this directional valve a pressure drop in the piston chambers (44) takes place, the force acting on the piston surface drops below the reset force that is produced by the trailing characteristics of the steering axle and acting on the piston ring area.