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Seal And Seal Arrangement

A technology of seals and sealing lips, which is applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve the problems of increased sealing surface wear, leakage in high-pressure areas, etc., and achieve a reliable sealing effect

Inactive Publication Date: 2012-05-30
TRELLEBORG SEALING SOLUTIONS GERMANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such functional defects of the seal when operating, for example, pneumatic cylinders or motors lead to leaks in the high-pressure area and / or can lead to rupture of the lubricating film between the individual sealing surfaces due to undesired deformations in the area of ​​the sealing edges, thereby Can increase the surface wear of each sealing surface

Method used

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  • Seal And Seal Arrangement
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Examples

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Effect test

Embodiment Construction

[0026] Figures 1 to 12A cross-section according to the invention is shown in each case as a sealing device, only the half of the cross-section being shown symmetrically with respect to the axis of rotation. Each sealing device has a first mechanical part 1 and a second mechanical part 3 which has a sealing surface 2 to be sealed and which is movable relative to the first mechanical part 1 . A seal holder is provided on the first machine part 1, which seal holder has an angular bearing surface for supporting a retaining element 5 of a seal according to the invention formed as a sealing ring for sealing The position of the part is fixed in the seal receiving structure. A sealing lip 6 with a sealing edge 7 is correspondingly connected to the holding element 5 . The retaining elements 5 of the individual seals each have a reinforcing element 8, wherein in Figures 1 to 11 In an embodiment of the present invention, the reinforcing element 8 has a substantially L-shaped cross se...

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Abstract

The invention relates to a seal for sealing a sealing surface (2) between a first machine part (1) having a seal accommodating structure, preferably a groove, and a second machine part (3), which can be moved relative to the first machine part (1) and which has the sealing surface (2), wherein a high-pressure area between the machine parts (1, 3) can be sealed off from a low-pressure area by the seal, comprising - a retaining element (5) for fixing the position of the seal in the seal accommodating structure, and - a sealing lip (6) made of an elastomer material formed on the retaining element (5) and having a sealing edge (7) formed on a free end of the sealing lip (6) for contacting the sealing surface (2), wherein the sealing lip (6) has a high-pressure surface area (10) that adjoins the high-pressure area and a low-pressure surface area (11) that adjoins the low-pressure area. The seal has a supporting element (15), wherein the supporting element (15) forms a support of the sealing lip (6), the support of which is on the low-pressure surface side and extends substantially parallel to the sealing edge (7), and wherein the support is arranged between the sealing edge (7) and the retaining element (5).

Description

technical field [0001] The invention relates to a seal for sealing a sealing surface between a first mechanical part and a second mechanical part, said first mechanical part having a seal receiving structure, preferably a groove, wherein Said second machine part has said sealing surface and is movable relative to the first machine part, wherein a high-pressure area can be sealed between the machine parts with respect to a low-pressure area by means of the seal, the invention also relates to a machine with such A sealing device for a seal. Background technique [0002] Such a seal has a retaining element for securing the position of the seal in the seal accommodating structure; and a sealing lip formed onto the retaining element from an elastomeric material, i.e. a rubber-elastic material such as polyurethane or rubber) with a sealing edge formed on the free end of the sealing lip for abutting against the sealing surface. The sealing lip has a high pressure surface area adj...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/32
CPCF16J15/3456F16J15/322F16J15/3216F16J15/3204F16J15/3224
Inventor M·弗朗茨
Owner TRELLEBORG SEALING SOLUTIONS GERMANY
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