Flat gasket and process for the production of a flat gasket
AssigneeElringKlinger AG
InventorWolfgang Fritz
Life of this patent
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Abstract
In order to provide a flat gasket, in particular cylinder head gasket, comprising at least one metal gasket sheet made of a spring steel or a metallic material with a percentage elongation after fracture corresponding to the percentage elongation after fracture of a spring steel, which has a novel structure, it is proposed that the gasket sheet is provided with at least one edging fold, which comprises a bending region and a flange region connected in one piece to the gasket sheet via the bending region.
Claims31
Flat gasket, in particular cylinder head gasket, comprising at least one metal gasket sheet made of a spring steel or a metallic material with a percentage elongation after fracture corresponding to the percentage elongation after fracture of a spring steel, wherein the gasket sheet is provided with at least one edging fold, which comprises a bending region and a flange region connected in one piece to the gasket sheet via the bending region.
Flat gasket according to claim 121, wherein the incisions are produced by mechanical cutting, punching or by laser cutting.
Process for the production of a flat gasket, in particular a cylinder head gasket, which comprises at least one metal gasket sheet made of a spring steel or a metallic material with a percentage elongation after fracture corresponding to the percentage elongation after fracture of a spring steel,
- comprising the following process step:
- folding over at least one region of the metal gasket sheet to form a flange region of an edging fold folded over onto the gasket sheet and connected in one piece to the gasket sheet via a bending region of the edging fold.
Dependencies are inferred from the claim text.