| 摘要 |
The transformer has a valve device, which has a double-seated valve with a valve seat (32) between a control pressure chamber (24) and a negative pressure connection and another valve seat (33) between an atmosphere pressure connection (18) and the control pressure chamber. A valve closing element overlie in rest position in the power-off condition on the former valve seat between the control pressure chamber and the negative pressure connection and has a gap for the latter valve seat between the atmosphere pressure connection and the control pressure chamber. |
