US 8,616,840 B2Granted

Sealing arrangement, sealing ring and use thereof

AssigneeCarl Freudenberg KG

InventorsIvan Ristic, Dieter Von Borstel

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Abstract

A sealing arrangement is provided, including a sealing ring for sealing two machine elements from one another, the sealing ring being conFIGUREd in an installation space for the second machine element that is open toward the first machine element to be sealed, and sealingly contacting the surface to be sealed of the first machine element, by way of at least one dynamically loaded first sealing lip. The sealing ring is arranged under elastic axial and radial preloading within the installation space.

Claims12

Dependent claims

A sealing arrangement comprising:

a substantially groove-shaped installation space arranged in a second machine element and open towards a first machine element, the installation space comprising a groove base, a first bounding wall and a second bounding wall;
a sealing ring for the mutual sealing of the first machine element from the second machine element, the sealing ring comprising at least one first sealing region, at least one second sealing region, at least one contacting region, and at least first and second dynamically loaded sealing lips;
wherein the sealing ring in an uninstalled state has a dimension that is smaller than a distance parallel to the surface to be sealed between the first bounding wall and the second bounding wall to permit insertion of the sealing element into said installation space;
and
wherein the sealing ring in an installed state is arranged under elastic axial and radial preloading in the installation space by being tilted within the installation space relative to the uninstalled state, such that the at least one first sealing region contacts the groove base, the at least one contact region contacts the first bounding wall, the at least one second sealing region contacts the second bounding wall, and the at least first and second sealing lips sealingly contact a surface to be sealed of the first machine element, wherein the first and second sealing lips face away from each other with respect to the surface to be sealed and are arranged under elastic axial and radial preloading within the installation space;
and
wherein the sealing ring is tilted from the uninstalled state to the installed state during assembly of the first machine element against the second machine element by pressure exerted by the surface to be sealed against the first sealing lip, such that the first sealing lip transmits forces from the surface to be sealed to the profile of the sealing ring, thereby tilting the sealing ring and squeezing the sealing ring radially and axially into the installation space.

4 more elements

Dependencies are inferred from the claim text.

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Abstract

A sealing arrangement comprising:

a substantially groove-shaped installation space arranged in a second machine element and open towards a first machine element, the installation space comprising a groove base, a first bounding wall and a second bounding wall;
a sealing ring for the mutual sealing of the first machine element from the second machine element, the sealing ring comprising at least one first sealing region, at least one second sealing region, at least one contacting region, and at least first and second dynamically loaded sealing lips;
wherein the sealing ring in an uninstalled state has a dimension that is smaller than a distance parallel to the surface to be sealed between the first bounding wall and the second bounding wall to permit insertion of the sealing element into said installation space;
and
wherein the sealing ring in an installed state is arranged under elastic axial and radial preloading in the installation space by being tilted within the installation space relative to the uninstalled state, such that the at least one first sealing region contacts the groove base, the at least one contact region contacts the first bounding wall, the at least one second sealing region contacts the second bounding wall, and the at least first and second sealing lips sealingly contact a surface to be sealed of the first machine element, wherein the first and second sealing lips face away from each other with respect to the surface to be sealed and are arranged under elastic axial and radial preloading within the installation space;
and
wherein the sealing ring is tilted from the uninstalled state to the installed state during assembly of the first machine element against the second machine element by pressure exerted by the surface to be sealed against the first sealing lip, such that the first sealing lip transmits forces from the surface to be sealed to the profile of the sealing ring, thereby tilting the sealing ring and squeezing the sealing ring radially and axially into the installation space.

4 more elements