Brake force intensifier with panic brake function has slide seal with vacuum seal seat moved suddenly by spring against brake actuation direction, when panic brake function is triggered

摘要

The device has a slide sleeve (18) with vacuum seal seat (17), pretensioned in direction of a valve body (8) by a spring (26), which is stronger than the valve body spring (9), and held under tension by a locking device (29). This has a release unit (39) reacting to a preset relative movement. It also has an activator unit (45), which reacts to the return movement of valve piston (13) and control housing (6) against the direction of brake activation.