| 主权项 |
1. A device for ventilating and aerating a fuel tank, comprising:
a tank shut-off valve having a longitudinal middle axis; and two tank pressure control valves spaced from the tank shut-off valve in a direction of the longitudinal middle axis and spaced from one another in a direction which is transverse to the longitudinal middle axis, one of the tank pressure control valves configured to open in response to a negative pressure in the fuel tank, and another one of the tank pressure control valves configured to open in response to an overpressure in the fuel tank, wherein at least one of the tank shut-off valve and the tank pressure control valves forms a valve unit which is mountable in a horizontal or vertical position and has a fuel connection in communication with the fuel tank and a filter connection in communication with an activated carbon filter, wherein the fuel connection and the filter connection are positioned generally parallel to one another and are spaced from one another also in the direction which is transverse to the longitudinal middle axis, with the fuel connection and the filter connection pointing downward in a vertical mounting position of the valve unit and pointing sideways in a horizontal mounting position of the valve unit, said fuel connection and filter connection being arranged at or near a bottom side of the valve unit. |
