Cylinder head gasket
The inventive flat cylinder head seal ring consists of at least one metallic layer ( 1, 2 ) and at least one cylinder through hole and another through hole embodied therein. A first deformation limiting element ( 6 ) is formed at least partially around at least one cylinder through hole and a bead ( 5 ) which extends along the entire length of the periphery of the cylinder through hole for forming a seal on the side of the first deformation limiting element ( 6 ) opposite to the said cylinder through hole. In addition, a second deformation limiting element ( 7 ) provided with a wave or trapeze-shaped profile is arranged on the side of the bead ( 5 ) opposite to the first deformation limiting element ( 6 ) in the area of the edge periphery and/or at least in the area of the other through hole.
1 - 13 . (canceled)
14 . A gasket comprising
at least one metallic layer having at least one cylinder through-opening and a peripheral edge;
a bead disposed circumferentially around said at least one cylinder through-opening between said at least one cylinder through-opening and said peripheral edge;
a first deformation limiter formed between said at least one cylinder through-opening and said bead;
a second deformation limiter disposed between said peripheral edge and said bead; and
wherein at least a portion of said second deformation limiter is a wave-like structure or a trapezoidal structure in a profile of said at least one metallic layer.
15 . The gasket of claim 14 , wherein is said second deformation limiter is proximate said peripheral edge.
16 . The gasket of claim 14 , wherein said second deformation limiter is disposed at both a first longitudinal end and a second longitudinal end of said gasket.
17 . The gasket of claim 14 , wherein an outer profiling is at least partially disposed around a no-cylinder through-opening.
18 . The gasket of claim 17 , wherein said non-cylinder through-opening is a fastener through-opening.
19 . The gasket of claim 14 , wherein said wave-like structure includes truncated wave peaks up to said trapezoidal structure.
20 . The gasket of claim 14 , wherein said wave-like structure includes different peak heights.
21 . The gasket of claim 14 , wherein said wave-like structure includes different distances between peaks.
22 . The gasket of claim 14 , wherein said second deformation limiter is smaller in height than said first deformation limiter.
23 . A cylinder head flat gasket having at least two metallic layers and at least one cylinder through-opening and a peripheral edge comprising:
at least a first metallic layer;
a first bead disposed circumferentially around a first cylinder through-opening of said first metallic layer disposed between said first cylinder through-opening and the peripheral edge;
a first deformation limiter formed between said first cylinder through-opening and said first bead;
a second deformation limiter disposed between the peripheral edge and said first bead;
at least a second metallic layer generally aligned with said first metallic layer;
a second bead disposed circumferentially around said first cylinder-through opening of said second metallic layer disposed between said first cylinder through-opening and the peripheral edge, said beads being generally aligned; and
wherein at least a portion of said second deformation limiter is a wave-like structure or a trapezoidal structure in a profile of said at least one metallic layer.
24 . The cylinder head flat gasket of claim 23 , wherein said first bead includes a first peak extending upwardly and said second bead includes a second peak extending downwardly, said peaks extending away from each other.
25 . The cylinder head flat gasket of claim 24 , wherein said peaks of said beads are flat.
26 . The cylinder head flat gasket of claim 24 , wherein said peaks of said beads are generally round.
27 . The cylinder head flat gasket of claim 23 , wherein said first bead includes a first peak extending downwardly and said second bead includes a second peak extending upwardly, said peaks being in selective contact with each other.
28 . The cylinder head flat gasket of claim 23 , wherein said second deformation limiter is disposed at both a first longitudinal end and a second longitudinal end of said gasket.
29 . The cylinder head flat gasket of claim 23 , wherein an outer profiling is at least partially disposed around a third through-opening.
30 . The cylinder head flat gasket of claim 23 , wherein said third through-opening is a screw through-opening.
31 . The cylinder head flat gasket of claim 23 , wherein said first deformation limiter includes a second wave-like or trapezoidal structure.
32 . The cylinder head flat gasket of claim 31 , wherein said second deformation limiter includes a smaller said wave-like or trapezoidal structure than said first deformation limiter.