Abstract: A single-layer seal or a sealing layer of a multi-layer seal made of metal includes supporting regions and sealing regions. At least one supporting region and at least one sealing region are embodied by a stamped sliding surface with a thickness that is greater than an original sheet-metal thickness. A step is stamped onto the upper side and/or the underside of the at least one sliding surface such that the sliding surface bends elastically in an installed state.

Abstract: The invention pertains to a coating for application to a substrate, whereby the coating comprises at least one thermoplastic fluorine-containing polymer, and its hardness decreases from the first surface, which is destined for application to the substrate, in the direction of the second surface which is remote from the substrate. The hardness gradient can be achieved by adding filling or reinforcing agents or by addition of at least one thermoplastic polymer. The invention additionally pertains to a gasket that consists of the coating in accordance with the invention or that comprises it.

Abstract: The invention pertains to a coating for application to a substrate, whereby the coating comprises at least one the thermoplastic fluorine-containing polymer, and its hardness decreases from the first surface, which is destined for application to the substrate, in the direction of the second surface which is remote from the substrate. The hardness gradient can be achieved by adding filling or reinforcing agents or by addition of at least one thermoplastic polymer. The invention additionally pertains to a gasket that consists of the coating in accordance with the invention or that comprises it.

Abstract: Cylinder head gasket which has at least on one side elevations which form gasket sealing surfaces, which surround at least one aperture of the cylinder head gasket in an enclosed manner, for pressing against at least one engine component sealing surface and the height profile of which is designed prior to the installation of the cylinder head gasket to correspond at least approximately to the topography of the sealing gap to be sealed and resulting when a cylinder head gasket is installed, the respective combustion chamber openings of the cylinder head gasket being encircled by these elevations individually, wherein the elevations are formed by at least one basic member provided with a coating, the material of the basic member being selected in such a manner and its cross section being configured in such a manner that the basic member is not deformable in height at least in first sections of the gasket sealing surfaces under the maximum load occurring during the installation of the cylinder head gasket as wel

Abstract: The invention relates to a flat gasket, on the main sealing faces of which are arranged one or several narrow flat sealing ridges, in the region of which an increased surface pressure and deformability are generated, whereby improved micro-sealing is attained. The invention further concerns a method for producing stamping moulds, in particular for stamping said flat gaskets according to the invention.

Abstract: A process for the production of a gasket is described, in which at least on one side and at least on all bearing points in the use case a three-dimensional sealing surface complimentary to the deflection of the surfaces to be sealed is permanently shaped prior to assembly, as well as a tool for performing the process. An assembly pattern is produced in such a way that a plastically deformable material is fixed between the surfaces to be sealed. A negative copy or form of the assembly pattern is produced on the circumferential surface and the gasket is produced accompanied by the rolling of the stamping roller.

Abstract: A gasket, particularly a cylinder head gasket is described, which is made from a pressure-resistant and non-deformable material. Unlike in the case of the known gaskets, it is permanently shaped prior to assembly. The sealing surface is shaped complimentary to the deflection or sagging of the surfaces to be sealed, so that at all bearing points in the use case there is the thickness distribution required for a necessary pressure distribution. The corresponding topography is obtained in that a deformable assembly pattern is fixed under operating conditions between the surfaces to be sealed and copies are made of said assembly pattern.

Abstract: A porous soft material sealing gasket comprising an asbestos fiber web with a multiplicity of perforations. The perforated web is impregnated with an impregnating agent that at least partially fills the free pores of the web by penetrating through the perforations.

Abstract: A gasket made of a fibrous and/or porous material is impregnated with a liquid saturating agent consisting essentially of an organic, synthetic and completely polymerizable liquid that does not contain agents which will evaporate during polymerization of the liquid.

Abstract: An axially and radially clamping spreader ring for an oil scraper piston ring, comprises a profiled metal band which has been made resilient in the circumferential direction by corrugations and/or cuts. The two ends of the metal band abut against one another and the metal band is provided in the area of one side with axial and radial supporting faces to accommodate at least one band-shaped scraper ring. A plurality of radially outwardly extending protrusions are distributed over the circumference of the band in the vicinity of the side of the spreader ring which is axially opposite the side which accommodates the scraper ring. The protrusions are separated from one another by wide lubricating channels and, when installed, contact the cylinder wall.

Abstract: A cylinder head gasket for internal combustion engines comprises at least one layer of a soft material having pores which are enriched with an impregnating agent and edges which are bordered by a casing. The pores of the soft material underneath the flange are kept free of impregnating agent.