Patent ID: 8678218

Claim:
A fuel tank for a vehicle comprising: a tank wall defining an upper opening; a ventilation valve including a valve housing and a ventilation opening placed in the upper opening of the tank wall and projecting into an interior of the fuel tank, a wall of the valve housing defining at least one wall opening between an interior of the valve housing and the interior of the fuel tank; a float arranged in the interior of the valve housing that can be moved from a resting position to a closing position, the float having a sealing element on its upper end, the float being in a lower position in the valve housing when it is in its resting position and the sealing element spaced from the ventilation opening, the float, when in a closing position, closing the ventilation opening with the sealing element as soon as a fuel closing level is reached during fueling; and a connecting channel located between the valve housing interior and the tank interior that ends in the tank interior with an outlet opening placed below the fuel closing level, wherein the outlet opening is located above all of the at least one wall openings in the valve housing, the connecting channel including a chamber arranged in the fuel tank and delimited by a wall, the connecting channel lying outside the valve housing interior that is fluidically connected to the tank interior through at least an outlet opening and to the valve interior through at least an uppermost wall opening of the valve housing positioned above all of the at least one wall openings and above the closing level, the chamber being formed by a dome that has an upper wall that protrudes from an upper side of the fuel tank, wherein the ventilation valve is mounted in an opening in the upper wall.