Filler port for motor vehicle fuel tank has blocking element(s) that reduces free inner cross-section of passage section of port in blocking position so smaller diameter is prevented from being inserted or flow of fuel is inhibited

摘要

The device is provided for refueling with a refueling pistol (16) of larger diameter and has a device (14,40,50) for inhibiting refueling with a smaller diameter pistol with at least one operating element (48) operated by inserting a larger diameter pistol. The device has at least one blocking element (46) that reduces the free inner cross-section of a passage section of the port in a blocking position to a mark at which the smaller diameter pistol is prevented from being inserted or the flow of fuel is inhibited.