| 摘要 |
The operating power booster has a control piston (2a) and a pressure operated piston (2b). The two pistons (2a,2b) are connected by a connecting rod (3) whose coupling allows the independent movement of the pistons (2a,2b). A separate air pressure valve (11) is connected by which the operating piston (2b) can be supplied with pressure while no pressure is supplied to the control piston (2a) enabling the operating piston to be controlled by the control piston as well as by the control of the separate air pressure valve (11). |
