Patent ID: 8347914

Claim:
A system for filling a tank, comprising; a pipe head; a fill pipe extending between the pipe head and the tank; and an intermediate part made of a rigid thermoplastic, attached by welding between the pipe head and the fill pipe, wherein the pipe head includes a chamber with an inlet opening that connects to an atmosphere, an outlet opening that connects to the fill pipe, and a stopper that closes an access to the fill pipe, the stopper being movable between an open position, in which the access to the fill pipe is open, and a closed position, in which the access to the fill pipe is closed, the inlet and outlet openings of the pipe head accommodating introduction of a filling nozzle into the fill pipe through the pipe head when the stopper is in the open position, wherein the fill pipe or is preceded by a local restriction which substantially reduces a cross section of a passage for the filling nozzle to correspond to an outer diameter of the filling nozzle, wherein a degassing connection links the fill pipe and the pipe head outside of the outlet opening of the pipe head, the degassing connection providing degassing when filling the tank, wherein the local restriction is formed by a separate part attached to the fill pipe or pipe head, and wherein the intermediate part supports the separate part and includes a pipe extending at least partly inside the fill pipe and having a diameter smaller than a diameter of the fill pipe.