| 摘要 |
The invention relates to a filling neck for putting fuel into a vehicle tank, comprising - a closure flap which is mounted on the filling neck such that it can be pivoted between a closed position closing the filling neck and an open position opening the filling neck, and which is preloaded into the closed position by spring pretension and can be pivoted from the closed position into the open position by a fuel pump nozzle, - a mis-filling prevention device, which is arranged in the filling neck between the closure flap and an insertion opening for the fuel pump nozzle and which, in a closed position, prevents the closure flap from being pivoted into the open position by the fuel pump nozzle, and can be moved by the fuel pump nozzle from its closed position into an enabling position permitting the closure flap to be pivoted into the open position by the fuel pump nozzle, wherein - the mis-filling prevention device is mounted in the filling neck with axial play in such a way that the mis-filling prevention device is first forced against the closure flap in the axial direction by the fuel pump nozzle as the latter is inserted into the filling neck, the closure flap being moved into a partly open position, and, during subsequent further insertion of the fuel pump nozzle, the mis-filling prevention device being moved into the enabling position by the fuel pump nozzle. |
