Braking system that includes a reduced booster and such booster the death process

摘要

Mainly, The present invention relates to a pneumatic brake booster working stroke short. Booster is connected to the brake pedal to define a variable pressure chamber and the low pressure chamber is slidably mounted in a sealed manner to the casing, the first end skirt rigidly connected pressure piston (6) and (12), and a three-way valve device which is controlled by a control rod that is. (50), and three-way valve device is applied by the valve spring (106) to at least one of the (48, 50) the valve seat of the first and second of these second valve seat (48) and the first valve seat I include the (46) valve. (50) is supported by (44) direction of the first end length the plunger distributor (32) and the second valve seat. [MEANS FOR SOLVING PROBLEMS] The first valve seat is supported by a first longitudinal end length (54) bushing slidably mounted over the first stroke of a predetermined sealed manner pneumatic piston (12) , above and (C) the predetermined stroke, the bush (54) is fixed axially to the pneumatic piston (12). The invention mainly applies to the automotive brake industry. [Selection Figure 7