Metallic cylinder head gasket
AssigneeElring Klinger AG
InventorsArmin Diez, Hermann Randecker
Life of this patent
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Abstract
The invention relates to a metallic cylinder head gasket for an internal combustion engine, having a carrier plate which is arranged between cover plates. The carrier plate and cover plates are provided with passages which are commensurate with the combustion chambers of the internal combustion engine. The cover plates are provided, around each passage, with a resilient bead. Adjacent to each bead, and also extending around each passage, is a bead deformation limiter. The deformation limiters are shaped to prevent the occurrence of high edge pressures.
Claims9
A method for manufacturing an inner deformation limiter for a metallic cylinder head gasket, said gasket being of a type having at least one cover plate and a carrier plate, said plates being provided with at least one passage therethrough, said at least one passage being defined by edges of said plates and being commensurate with a combustion chamber of an internal combustion engine;
- said at least one cover plate being further provided with a resilient bead extending around each said passage, a planar plate section extending between each said bead and a said passage edge, said beads extending outwardly in a direction which is generally transverse to said planar plate section;
- an inner deformation limiter for each said bead, said deformation limiter extending around each said passage, each of said deformation limiter having a thickness greater than the thickness of said carrier plate;
- wherein said method comprises the steps of:
- forming a wire ring;
- and
- pressing said ring to form a ring-shaped deformation limiter with a substantially rectangular section.
Dependencies are inferred from the claim text.