Pump nozzle for filling fuel e.g. diesel into filler neck of fuel tank in motor vehicle, has unlocking ring that is transferable to unlocking position by movement of lead-free fuel filling pipe in filler neck for petrol

摘要

The nozzle has a lead-free fuel filling pipe (1) connected with a handle piece. A lead-free fuel filling pipe insertion prevention device (4) is provided in a filler neck (2) of a fuel tank of a vehicle. The prevention device has an unlocking ring (6) that moves relative to a locking ring (5). A locking element (7) is provided at the locking ring and transferred from the unlocking ring to a releasing position. The unlocking ring is supportable at a filler neck for petrol. The unlocking ring is transferable to an unlocking position by movement of the pipe in the filler neck for petrol.