Flat metal gasket
AssigneeDana Corporation
InventorsGunther Unseld, Kurt Hohe
Life of this patent
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Abstract
A metal gasket is proposed, especially a cylinder head gasket for a combustion engine, which comprises a sealing plate having a combustion chamber through-hole, a deformation-limiting device lying adjacent to the combustion chamber through-hole and respectively one top and one bottom layer. The deformation-limiting device is configured as a symmetrical bead in relation to the top and bottom layers. A protrusion preferably provided with a radius is orientated towards one of the top and bottom layers and opposite thereto a depression facing the other of the top and bottom layers is provided which is surrounded by two raised portions projecting opposite the surface of the sealing plate. A filling is accommodated in the depression.
Claims7
Metal gasket, in particular a cylinder head gasket for a combustion engine, with a sealing plate having at least one combustion chamber through-hole, a deformation-limiting device lying adjacent to the combustion chamber through-hole and at least one each of a top layer and a bottom layer,
- characterised in that the deformation-limiting device is configured as a bead (7) which is symmetrical in respect of the top and bottom layers (3, 4), in such a way that a protrusion (9) is oriented towards one of the top and bottom layers (3, 4) and lying opposite this is provided a depression (12), facing the other of the top and bottom layers (3, 4) and which is surrounded by two raised portions (13, 14) projecting opposite the surface of the sealing plate (2), a filling being accommodated in the depression (12).
Dependencies are inferred from the claim text.