| 摘要 |
A servo booster assembly comprises a housing having a fixed part and a movable part defining a chamber therebetween, a control valve for communicating the chamber alternately with vacuum and ambient air, and an input member movement of which operates the control valve. In response to operation of the control valve the movable housing part moves relative to the fixed part between an inoperative position and an operative, brake-applying position, the movable part being connected to an output member. The housing parts are interconnected by a tie bar the ends of which extend outside the housing and are adapted respectively for connection to a master cylinder and a vehicle bulkhead. |
