Vehicle brake system with electric servomotor and hydraulic reaction piston

摘要

The system has a reaction spring (130) housed in an external chamber. A body includes an axial through-hole (101d) connecting a rear wall of the external chamber and a primary chamber (102). An actuator piston (122) directly cooperates with a skirt (101b) to push a primary piston (101). A hydraulic reaction piston (140) is housed in the axial through-hole of the body. The hydraulic reaction piston includes a stop, where the stop rests against the rear wall of the external chamber to push the primary piston and be pushed by the primary piston.