PLASTIC FUEL TANK WITH INCREASED DEFORMATION STABILITY

摘要

Plastic fuel tank comprising an upper wall (1), a lower wall (2), at least one kiss point (21) formed by welding together a multiplicity of contact points of the upper and lower walls and an accessory (4), characterized in that: both the upper and lower tank walls show a concave recess (3,21) in the kiss point area so that the weld of the kiss point is located in between the planes defined by the upper and lower walls respectively; the bottom of the upper concave recess extends substantially beyond the weld of the kiss point, while the bottom of the lower one does not; the accessory is at least partially located under the extension of the bottom of the upper concave recess. Process for manufacturing such a fuel tank.