Fuel tank in particular a plastic fuel tank

Claim 1

A filler neck arrangement for fuel tanks for motor vehicles comprising a connecting means for connection to a filler neck of a tank, said connection means including shoulder means for overlapping an end surface associated with one end of the filler neck, an elastic seal disposed between said shoulder means and the end surface of said filler neck in a manner forming a seal therebetween, skirt means extending from said shoulder means for fixedly connecting said connecting means to said filler neck, said skirt means including a plurality of projections projecting inwardly and arranged at an angular distance from one another, a plurality of recess means associated with said filler neck for cooperating with said plurality of projections, each of said plurality of recess means extending in the longitudinal direction of said filler neck and disposed at a distance relative to said end surface, wherein said plurality of projections engage with said plurality of recess means in a form-locking manner for fixed attachment of said connecting means to said filler neck, said connecting means including means for releasably securing a cap for said filler neck arrangement.