Pneumatic brake amplifier with plastic moulded casing - has bottom surface with region round screws having outward plastic deformation which corresponds to given force

摘要

The amplifier has at least two screws (2), in the bottom surface of the casing (1) facing the main cylinder, which fix the main cylinder. The region (4) round the screws has an outward plastic deformation. This deformation may correspond to that which arises when the brake amplifier acts on the piston of the main cylinder at a specific force, preferably 100,000 N.