Brake servo unit or servomotor for motor vehicle, has bosses connected on surface of shell and ensuring contact between surface and wall, and joints ensuring sealing around bosses, where shell is sealed to air

摘要

The unit (10) has a shell (25) comprising a surface (26) maintained in contact with a wall (11) of a motor vehicle, where the servo unit is immobilized on the wall. Bosses (27) are connected on the surface and ensure contact between the surface and the wall. The shell is sealed to air, and joints (35, 36) ensure sealing around the bosses. A nut (34) maintains the servo unit in contact with the wall. A screw (30) passes through holes (33) of the wall.