| 摘要 |
The present invention relates to a multi-layer steel insert for a cylinder head gasket for an internal combustion engine comprising. The cylinder head gasket may be made from metal or a composite material, and is disposed between a cylinder head and a cylinder block. The MLS insert may be located around at least one fluid passage aperture. The MLS insert has a first outside layer and a second outside layer each comprising an upper surface and a lower surface, an outer perimeter, an inner closed perimeter defining a fluid aperture, and a bead. The beads may be half beads or whole beads. An intermediate layer is arranged between the outside layers and includes an upper surface and a lower surface, an outer perimeter and an inner closed perimeter defining a fluid aperture. The MLS insert may be attached to the cylinder head gasket by mechanical or chemical means.
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