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Flange seals and seal arrangement systems

A flange sealing and sealing element technology, applied in flange connection, engine sealing, passing through components, etc., can solve problems such as the release of mechanical particles, the sealing edge is no longer reliably sealed, and is not expected, and achieves good performance. Effect

Active Publication Date: 2020-01-03
CARL FREUDENBERG KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In the prior art described above, thermal expansion and / or swelling would cause the rubber-elastic material from which the sealing element is made to expand / swell radially inwards, anyway in the radial direction to such an extent that the sealing element would expand / swell in its The sealing edge extends radially inward into the cavity defined by the flange
As a result, the flow cross-section for the medium to be sealed through the flange is undesirably narrowed and undesired eddies of the medium to be sealed can occur
A further disadvantage is that the sealing edge can be sheared, for example, during cleaning of the flange, so that mechanical particles can be released and the sealing edge can no longer seal reliably due to such damage.

Method used

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  • Flange seals and seal arrangement systems
  • Flange seals and seal arrangement systems
  • Flange seals and seal arrangement systems

Examples

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Embodiment Construction

[0047] exist figure 1 An embodiment of a flange seal comprising a support body 1 made of a ductile material is shown in FIG. The sealing element 2 is made of rubber-elastic material and is connected in one piece with the support body 1 . On the radial inside, the sealing element 2 has a sealing edge 5 which can be acted upon by the medium 3 to be sealed in the space 4 to be sealed.

[0048] What is essential for the invention is that the sealing element 2 has cavities 6 in the region of the sealing edge 5 in the produced state (as shown here) which can be used during the intended use of the flange seal. Change the volume. As such it is now Figure 4 Note that these variable-volume cavities 6 are shown in this figure.

[0049] In the exemplary embodiment shown here, the cavity 6 is designed to be self-sealing apart from the recesses 19 , 20 , which can also be referred to as open cavities and are arranged on the end side in the axial direction at the sealing element. 2 si...

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Abstract

The invention relates to a flange seal and a sealing arrangement system. The flange seal comprises a support body (1) made of tough material and a sealing element (2) made of rubber material, said support body and said sealing element are interconnected in one piece, wherein the sealing The element (2) has a sealing edge (5) which can be acted upon by the medium to be sealed (3) in the space to be sealed (4). In the region of the sealing edge ( 5 ), the sealing element ( 2 ) has cavities ( 6 ) in the produced state, which can change volume during the intended use of the flange seal. The sealing arrangement comprises one such flange seal and two flanges (16, 17), wherein the flange seal is arranged sealingly between the flanges (16, 17) in the axial direction , and the flanges (16, 17) directly abut against the end stops (9, 10).

Description

technical field [0001] The invention relates to a flange seal and a sealing arrangement comprising such a flange seal. The flange seal includes a support body made of tough material and a sealing element made of rubber elastic material, the support body and the sealing element are interconnected in one piece, wherein the sealing element has a Medium-loaded sealing edge to be sealed in the space to be sealed, wherein the sealing element has cavities in the region of the sealing edge in the state formed by production, which cavities can change during the intended use of the flange seal volume. [0002] The sealing arrangement comprises one such flange seal and two flanges, wherein the flange seal is arranged sealingly between the flanges in the axial direction. Background technique [0003] A flange seal is known from US Pat. No. 3,355,188, which has a support body and a sealing element made of rubber-elastic material, the support body and the sealing element being connected...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16L23/22
CPCF16L23/22F16J15/061F16J15/104F16J15/127F16L23/18F16L23/162F16L23/00
Inventor O·纳尔沃尔德C·戈伊伯特F·门芩豪尔P·克里泽F·劳尔
Owner CARL FREUDENBERG KG