Simulator with clearance compensation for a vehicle brake servo unit

摘要

The three-way valve simulator comprises a control piston (206), and a reaction piston (240) remote from the control piston when the simulator is at rest. The reaction piston is arranged so that the control piston can be moved over predetermined travel in the direction of reaction piston under the effect of the command transmitted from outside the simulator. A bush (226) is movable with respect to the control and reaction pistons, and is arranged to be stressed by control and reaction pistons. The reaction piston passes through the support slidably mounted in the master cylinder of brake servo. An independent claim is included for a braking system.