BigPatents India

A switch-over device for a compressed natural gas filling station is proposed which comprises at least a first and a second input (21 and 22 respectively) for a fluid which is under pressure, an outlet (9) for the fluid and flow connections (19, 29) via which each input (21, 22) can be connected to the outlet (9). A switch-over valve (42) which has a valve body (421), which can be actuated by the fluid and which in its closure position closes the flow connection (29) between the second input (22) and the outlet (9) is provided in the flow connection (29) between the second input (22) and the outlet (9). Control connections (142, 942) for the fluid are arranged in such a manner that the valve body (421) of the switch-over valve (42) is acted upon on the one side by the pressure of the fluid at the first input (22) and on the other side by the pressure of the fluid at the outlet (9). Drawing Sheets. 07 Total Pages: 43 (FIG.-01A)