Pneumatic brake booster with low operating noise

摘要

The subject of the present invention is a pneumatic brake booster comprising an envelope in which a skirt (2) slides in a sealed manner, a pneumatic piston (8) rigidly attached to the skirt, a three-way valve (20) actuated by a control rod (22) operated at a first end by a pedal, a plunger (32) mounted at a second longitudinal end which is the opposite end and slideably mounted in the body of the piston, the control rod and the plunger forming a brake control (33), characterized in that the said booster comprises means (68) of damping the relative and in particular oscillatory movement between the brake control (33) and the pneumatic piston (8).