Patent ID: 6148516
Filing Date: 2000-11-21
Classification: B21K,F02F,F16J,Y10T

Abstract:
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; andpressing said ring to form a ring-shaped deformation limiter with a substantially rectangular section.