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US 8,556,271 B2Granted
Multilayer metal gasket
OwnerJeorg Schmitzinventor
Life of this patent
Estimating the term…
Abstract
A multilayer metal gasket includes at least two metal gasket layers formed with an aligned opening and aligned opposing sealing beads surrounding the opening. A partial stopper layer is interposed between the gasket layers and is of lesser area than either of the gasket layers. The partial stopper layer extends from the opening outwardly beyond the sealing beads and is fixed to one of the layers on only one side of the sealing beads and is free on the opposite side.
Claims8
A multilayer metal gasket, comprising:
- at least first and second gasket layers having generally planar bodies and formed with at least one aligned hole and at least one associated sealing bead in each of the gasket layers aligned opposite one another and projecting out of the plane of their respective bodies in the same direction and in radially outwardly spaced surrounding relation to said hole;
- and
- a partial stopper layer disposed between said gasket layers in contact with said gasket layers and having an area less than that of either of said gasket layers, said stopper layer extending fully across said sealing beads from a position radially inward of said sealing beads to a position radially outward of said sealing beads, and being fixed to at least one of said gasket layers radially outwardly of said sealing beads and being free radially inwardly of the sealing beads, wherein said stopper layer is fixed to only one of said gasket layers by a weld joint.
An assembly, comprising:
- an engine block having at least one cylinder opening fitted with a cylinder liner;
- a cylinder head;
- and
- a gasket disposed between said engine block and said cylinder head having at least first and second gasket layers having generally planar bodies and formed with at least one aligned hole corresponding to said cylinder opening of said engine block and at least one associated sealing bead in each of the gasket layers aligned opposite one another and projecting out of the plane of their respective bodies in the same direction and in radially outwardly spaced surrounding relation to said hole;
- a partial stopper layer disposed between said gasket layers in contact with said gasket layers and having an area less than that of either of said gasket layers, said stopper layer extending fully across said sealing beads from a position radially inward of said sealing beads to a position radially outward of said sealing beads, and being fixed to at least one of said gasket layers radially outwardly of said sealing beads and is free radially inwardly of the sealing beads, and with said gasket engaging said cylinder liner, wherein said stopper layer is fixed to only one of said gasket layers by a weld joint.
2 more elements
Dependencies are inferred from the claim text.