LEVER MECHANISM OF A FOLLOW-UP CONTROL SYSTEM

When tie-rod 1, linked to the control lever, moves to the left, lever 2 turns about point O, shifting valve spool 3 to the right. At this, servomotor 4 is blocked off from the drain and is connected to the pressure main. The fluid moves piston 5 to the right. Lever 6, turning about fixed axis A, actuates the mechanism being controlled through tie-rod 7. If tie-rod 1 continues to move to the left, …