A multi-layered metal sheet is disclosed formed of a laminate of a plurality of metal sheets fixed to each other by a clinch formed in a concave shape from one main surface toward another main surface, the clinch has an schematic pillar shape, the clinch being defined by an open top, a pair of cut surfaces which are respectively formed from the open top toward a bottom, a pair of inclined surfaces respectively inclined from the open top toward the bottom, transitional surfaces which connect the cut surfaces and the inclined surfaces to each other, and the bottom having overlapping parts which extend over the main surface of the multi-layered metal sheet on a lower side immediately below the cut surfaces, and lengthwise end portions of a cut formed in each of upper edge portions of the cut surfaces are disposed on upper edge portions of the transitional surfaces.

A gasket for a combustion chamber is provided. The gasket comprises an upper assembly including an upper combustion sealing section with a raised bead positioned between a first component and a second component adjacent to a combustion chamber and an upper fluid sealing section positioned between the first component and the second component at a location spaced away from the combustion chamber. The upper combustion sealing section includes an anti-fret coating on a metal layer, the upper fluid sealing section includes a synthetic rubber coating on a metal layer, and the upper combustion sealing section is greater in thickness than the upper fluid sealing section.

A gasket for a combustion chamber is provided. The gasket comprises an upper assembly including an upper combustion sealing section with a raised bead positioned between a first component and a second component adjacent to a combustion chamber and an upper fluid sealing section positioned between the first component and the second component at a location spaced away from the combustion chamber. The upper combustion sealing section includes an anti-fret coating on a metal layer, the upper fluid sealing section includes a synthetic rubber coating on a metal layer, and the upper combustion sealing section is greater in thickness than the upper fluid sealing section.

A multi-layer metal gasket includes a first functional layer and a second functional layer. A bore and a fastener hole extend through the first and second functional layers. The first functional layer has a first embossment protruding toward the second functional layer and the second functional layer has a second embossment protruding toward the first functional layer. The first embossment and the second embossment each encircle the bore. An intermediate layer is between the first and second functional layers. The intermediate layer extends between the first embossment and the second embossment and extends from the first and second embossments to the fastener hole. A spacer layer is between the intermediate layer and the first functional layer. The spacer layer has an inner edge defining a hole through the spacer layer. The inner edge encircles the first embossment. The spacer layer extends from the inner edge to the fastener hole.

A sealing assembly includes a first component having a first sealing surface, a second component having a second sealing surface and a flat gasket arranged in the space between the first sealing surface and the second sealing surface, wherein the gasket has a through-opening for a third component arranged at least partially in the first component and/or the second component and at least engaging in the through-opening. The flat gasket has retaining means for securing the third component, the retaining means releasing the third component in a release position of said flat gasket and fixing said third component in at least one direction with respect to the first component and/or the second component in a retaining position of the gasket.

A flat gasket has a functional layer with at least one media through-opening and at least one combustion chamber through-opening. A second layer, which is separate from the functional layer. The second layer has a media through-opening that corresponds to the media through-opening in the functional layer and a combustion chamber through-opening that corresponds to the combustion chamber through-opening in the functional layer. The functional layer has at least one combustion chamber sealing bead, which is preferably a full bead, for each combustion chamber through-opening. The second layer has an outer boundary sealing bead and an elastomer sealing profile for each media through-opening.

A gasket assembly includes a gasket body, an adhesive-backed film, and a plurality of grommets. The gasket body includes a first face, and the adhesive-backed film includes a sticky face bonded to the first face of the gasket body. The grommets are bonded to the sticky face of the adhesive-backed film.

An internal combustion engine is equipped with a cylinder block having a plurality of cylinders and an in-block water jacket, a cylinder head having an in-head water jacket, and a head gasket. The in-block water jacket includes a plurality of cylinder outer peripheral portions. The head gasket includes a plurality of coolant opening portions. The internal combustion engine is configured such that coolant sequentially flows through the cylinder outer peripheral portions along a cylinder bank direction in the in-block water jacket. The head gasket includes one or a plurality of dam portions provided, in such a manner as to block the flow of coolant, at a position downstream of the coolant opening portion corresponding to the cylinder outer peripheral portion located at least most downstream in an in-block coolant flow direction.

According to some embodiments, a multi-layer gasket with a non-compressible core, formed of any material that is relatively rigid and incompressible and can serve as a carrier for a gasket, and compressible layers, formed of any flowable or compressible sealing material with appropriate rheology for a particular sealing application, in the form of edge or surface coatings, is presented.

A multilayer static gasket, stopper region containing distance layer therefor and methods of construction thereof are provided. The gasket includes at least one metal functional layer and at distance layer including a stopper region. The functional layer has a seal bead surrounding at least one passage to be sealed. The distance layer has a thickness extending between generally planar opposite sides, with each of the opposite sides of the distance layer having a plurality of protrusions extending outwardly therefrom and a plurality of depressions extending inwardly therein, wherein the protrusions and depressions form the stopper region. Each of the depressions extends into a separate protrusion, thereby forming an underside of the associated protrusion. The depressions extend into the opposite sides of the distance layer a distance that is equal to or greater than ½ of the thickness of the distance layer.