TANKFUELLSTUTZEN FUER EINEN TREIBSTOFFTANK

摘要

The invention relates to a filler neck with a sealing flap (114) arranged inside the latter and capable of swivelling between a closed position and an open position. The sealing flap (114) operates an overfilling valve (138) via an arm (124) in such a way that the valve is opened when the sealing flap (114) is closed but closed when the sealing flap (114) is opened. By means of the overfilling valve (138) a pocket provided in the upper area of the tank is activated in which an air or gas bubble forms during filling of the tank which, after filling, is released so that the filling level of the fuel in the tank filler neck falls. …In addition a combined over pressure/under pressure valve (144) and a ventilating valve (142) are incorporated into the tank filler neck, which ventilating valve is designed as a so-called roll-over valve in such a way that it seals off the vent path in the case of a certain angle of inclination or overturning of the vehicle, thereby preventing fuel from escaping. ……