Aluminum faced expanded graphite gasket and method of making same
AssigneeDana Corporation
InventorsJerome G. Belter, James H. Larsen
Life of this patent
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Abstract
A composite aluminum faced, expanded graphite gasket includes at least one layer of aluminum mechanically secured to an expanded graphite layer. A plurality of projections or lugs extend from one surface of the aluminum layer and are mechanically clinched to the graphite layer to secure the layers together. The exposed surface of the aluminum is coated with a resilient sealing compound. A gasket including two aluminum layers mechanically clinched to the faces of the graphite layer as well as a method of fabricating both gasket configurations are also set forth.
Claims18
A composite gasket for sealing juxtaposed engine components comprising, in combination,
- a layer of expanded graphite material,
- at least one layer of aluminum having a plurality of projection means extending into said layer of graphite material for mechanically securing together said aluminum and said graphite layers, and
- a layer of coating material disposed on the outer surface of said aluminum layer.
An aluminum faced expanded graphite composite gasket for sealing between juxtaposed engine components comprising, in combination,
- a layer of expanded graphite material,
- at least one layer of aluminum having a plurality of apertures and a plurality of formed projections extending from the edges of said apertures, said projections extending into said layer of graphite material and mechanically clinching said aluminum and said graphite layers together, and
- a layer of resilient coating material disposed on the outer surface of said aluminum layer.
A method of fabricating a composite gasket, comprising the steps of:
- providing at least one layer of aluminum,
- perforating said layer of aluminum to provide apertures having at least one projection extending from an edge thereof,
- providing a layer of expanded graphite material,
- positioning said layer of aluminum on said layer of expanded graphite material with said projections adjacent said layer of expanded graphite material,
- compressing said aluminum layer and said graphite layer together to mechanically secure them to one another, and
- coating the exposed surface of said aluminum layer with a resilient coating material.
Dependencies are inferred from the claim text.