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Sealing arrangement

一种密封装置、环形齿的技术，应用在发动机的密封、法兰连接、管子/管接头/管件等方向，能够解决排气安全性差、波形主体不可逆扁平伸长、波形环密封件不特别可靠等问题，达到改进密封性的效果

Inactive Publication Date: 2013-09-04
阿尔弗雷德·荣格
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Other major disadvantages of wave ring seals are the poor venting safety, the increasingly poor tightness of the flange connection under the load of pressure and temperature fluctuations and the considerable installation thickness of more than 2mm before installation
This very high installation thickness requires large flange clearances during installation and often leads to damage to the soft material covering even during installation
But a major disadvantage of wave ring seals is in particular the irreversible radial extension of the seal during compression, where the wave body becomes irreversibly flattened and elongated
Wave ring seals are therefore not particularly reliable in practice, especially under high loads and high demands on permanent sealing

Method used

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Examples

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Embodiment Construction

[0067] Preferred embodiments of the invention are shown in simplified views in the drawings. In this respect, the continuous visible edge of the rotationally symmetrical seal is not shown or only outlined in order to ensure a good overview. In all figures, the inner side of the flange connection or the inner side of the seal is always on the left side. In all figures, therefore, the pipes conveying the medium are on the left. Figure 11 and 12 The seal is shown fitted into the flange.

[0068] figure 1 An embodiment is shown in which several ring teeth 3 , 4 are uncovered inwardly by a soft material covering. These uncovered ring teeth, measured across the tooth tips, are larger than the covered ring teeth 5 and give the metal seal a spring characteristic. The internal annular toothing 3 has a free tooth flank 10 of length L. The length L is smaller than the length L′ of the other corresponding further outer tooth flank of the inner ring tooth 3 . In particular, the too...

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Abstract

Sealing arrangement comprises an annular metallic base body (1) having a region covered with soft material layers (2) with angular annular teeth (5). The region covered with the soft material layers has a spring characteristic which springs back at least to 75 wt.% into the original state after completion. Preferred Features: The base body has a thickness of less than 1.2 mm, preferably 0.8 mm, in the covered region measured over the metal tips.

Description

technical field [0001] The invention relates to a seal, in particular for flat flange connections, consisting of an annular metal body with a soft material covering layer, preferably graphite or PTFE, or another soft material covering layer present on both sides, wherein the body can be positioned at On the inside and / or on the outside there are radially encircling annular teeth which, in the installed state, can produce a point-to-point, metal-to-metal contact and have spring properties, which are selected in such a way that after the seal is removed from the flange, the teeth The tooth height can be relaxed back to the state it was in before installation and thus regain almost the original tooth height. Background technique [0002] A seal of this type is described in EP 1062442 and has proven to be very effective in practice during this period. [0003] Furthermore, so-called bellows ring seals have been known for many years, in which a soft-material covering is present ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/12F16J15/06F16L23/18
CPCF16L23/18F16J15/127F16J15/122F16J15/125F16J15/061F16J15/12F16J15/06
Inventor 阿尔弗雷德·荣格
Owner 阿尔弗雷德·荣格