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US 11,668,396 B2Granted
Gasket with an anti-fret coating
AssigneeDana Automotive Systems Group, LLC
InventorsMartin Mockenhaupt, Christopher M. Naylon, Ruben Rodriguez, Jason Tyrus
Life of this patent
Estimating the term…
Abstract
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.
Claims20
A gasket comprising:
- an upper assembly including:
- an upper combustion sealing section with a raised bead configured to:
- be positioned between a first component and a second component and adjacent to a combustion chamber;
- and
- contact the first component;
- and
- an upper fluid sealing section configured to be positioned between the first component and the second component at a location spaced away from the combustion chamber;
- wherein the upper combustion sealing section includes an anti-fret coating on a metal layer;
- wherein the upper fluid sealing section includes a synthetic rubber coating on a metal layer;
- wherein the upper combustion sealing section is greater in thickness than the upper fluid sealing section;
- wherein a stepped interface is formed at adjoining edges of the upper combustion sealing section and the upper fluid sealing section;
- wherein the adjoining edges are parallel to a vertical axis and are include side surfaces that are adjacent to one another;
- and
- wherein the upper fluid sealing section is constructed out of a different material than the upper combustion sealing section.
11 more elements
A gasket comprising:
- an upper assembly including:
- an upper combustion sealing section with a raised bead configured to be positioned between a cylinder head and a cylinder block and adjacent to a combustion chamber;
- and
- an upper fluid sealing section positioned between the cylinder head and the cylinder block at a location spaced away from the combustion chamber;
- wherein the upper combustion sealing section includes an anti-fret coating on a metal layer that does not include a fluoroelastomer material;
- wherein the upper fluid sealing section includes a fluoroelastomer coating on a metal layer;
- and
- wherein the upper combustion sealing section is greater in thickness than the upper fluid sealing section;
- a lower assembly comprising:
- a lower combustion sealing section with a raised bead configured to be positioned between the cylinder head and the cylinder block and adjacent to the combustion chamber;
- and
- a lower fluid sealing section configured to be positioned between the cylinder head and the cylinder block at a location spaced away from the combustion chamber;
- wherein the upper and lower fluid sealing sections are constructed out of a different material than the upper and lower combustion sealing sections;
- and
- wherein the upper fluid sealing section and the upper combustion sealing section do not overlap with respect to an axis that is parallel to a central axis of the combustion chamber.
12 more elements
A head gasket for an engine, comprising:
- an upper assembly including:
- an upper combustion sealing section with a raised bead configured to be positioned between a cylinder head and a cylinder block;
- and
- an upper fluid sealing section configured to be positioned between the cylinder head and the cylinder block at a location spaced away from a combustion chamber, wherein the combustion chamber is formed by the cylinder head and the cylinder block;
- a lower assembly comprising:
- a lower combustion sealing section with a raised bead configured to be positioned between the cylinder head and the cylinder block and adjacent to the combustion chamber;
- and
- a lower fluid sealing section configured to be positioned between the cylinder head and the cylinder block at a location spaced away from the combustion chamber;
- wherein the upper and lower fluid sealing sections are constructed out of a different material than the upper and lower combustion sealing sections;
- wherein the upper fluid sealing section and the upper combustion sealing section do not overlap with respect to an axis that is parallel to a central axis of the combustion chamber;
- wherein the upper and lower combustion sealing sections each include an anti-fret coating on a metal layer;
- wherein the upper and lower fluid sealing sections each include a fluoroelastomer or a fluoropolymer coating on a metal layer;
- wherein the upper combustion sealing section is greater in thickness than the upper fluid sealing section;
- and
- wherein a stepped interface is formed at adjoining edges of the upper combustion sealing section and the upper fluid sealing section.
12 more elements
Dependencies are inferred from the claim text.