Fuel tank system has valve arrangement that connects section of vent line between it and fuel tank to atmosphere in switch position in which vent line to active carbon filter is blocked

摘要

The system has a fuel tank (1) with a filler tube (20), a vent line (3) connected to an active carbon filter (2), a valve arrangement (4) that blocks the vent line in a first switch position (I) and opens it in a second position (II). The valve arrangement is designed to connect the section (3a) of the vent line between it and the tank to the atmosphere in the first switch position.