The locking system locks the filling neck (2) of the fuel tank by means of a locking cap (1). A tube stub projects from the cap into the filling neck. There is a protective tube sector (11) in the filler neck, fixed to it at one end, for the sealing surfac...

A fuel pipe for vehicles consists of: (1) an outer polyamide 12 layer; (2) an ethylene-vinyl alcohol copolymer intermediate layer; and (3) an inner polyamide 6 layer. The inner layer is made to conduct electricity by the addition of up to 30 wt.% soot or g...