Patent ID: 7984912

Claim:
A multi-layer metallic flat gasket, comprising: at least one passage opening, at least one sealing layer with at least one resilient bead which surrounds the passage opening, and at least one stopper layer with at least one stopper which delimits the deformation of the bead and which is composed of a plurality of directly successive ridge-shaped elevations and groove-shaped depressions, both being substantially trapezoidal in cross section and both being formed in on both sides of the stopper layer, in each case with setting angles of the trapezium flanks, with the trapezoidal elevations of the one side being situated opposite the trapezoidal depressions of the other side, wherein the volumes V 1 , V 2 of a trapezoidal elevation of the one side and of the opposite trapezoidal depression of the other side differ by less than 10%, and in that a cross section Q 1 , which is defined by two parallel lines which run through trapezium flanks which are situated opposite one another most closely, is small in relation to a cross section Q 2 which is defined by two lines which connect the bases of the depressions of each side.