Steel laminate type cylinder head gasket

A steel laminate type cylinder head gasket to be installed in an internal combustion engine having a cylinder block with a cylinder bore, a cylinder head with an auxiliary combustion chamber and a mouth plate attached to the cylinder head for defining the auxiliary combustion chamber, said gasket having at least one first sealing area around the cylinder bore and at least one second sealing area adjacent the first sealing area, on which the mouth plate is placed, said second sealing area being defined by a curved outer line corresponding to a part of a contour of the mouth plate and an inner line corresponding to a part of a contour of the cylinder bore, said gasket comprising:

• a first plate including at least one curved first bead situated outside the second sealing area and adjacent to the curved outer line, said first bead having two outer ends located at the first sealing area adjacent the cylinder bore, at least one second bead, said second bead intercrossing the outer end of the first bead and extending at least partly along the cylinder bore in the first sealing area, and at least two third beads, each third bead extending between the first and second beads so that the outer end of the first bead is located close to the cylinder bore relative to the third bead, and
• at least one second plate situated adjacent to the first plate to form the steel laminate gasket.