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Welded metal seal

A technology of metal seals and seals, applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve problems such as leakage, impossibility, excessive waste, etc.

Inactive Publication Date: 2013-06-05
FEDERAL MOGUL SEALING SYST GMBH (DE)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This type of seal is made from a strip of material bent into a ring and generally has the disadvantage of leaking at the point where the ring seal is closed by a weld
An alternative solution is to use formed flat sheet material to make the seal, this alternative is also not feasible due to the excessive waste generated

Method used

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  • Welded metal seal
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Examples

Experimental program
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Embodiment Construction

[0055] The seals shown in the figures are realized in the form of single-curved round seals, which are made of metal sheets or strips and whose edges serve as sealing elements or sealed area.

[0056] Figure 1A A general view of a seal 2 is shown with an axially outward sealing region 6 (sealing surface, sealing edge or sealing lip). The outer side 12 of the radially outer seal is bent axially inwards. This means that the seal is axially tapered. The inner side 4 of the radially inner seal 2 is convexly curved in the axial direction. The seal 2 thus essentially forms a part of a single leaf hyperboloid. The seal 2 is made of flat material bent into a ring. At the seam 8 the ring is closed by a weld 10 . For the sake of brevity, it should be noted at this point that designations of inner side 4 and outer side 12 always refer to radial directions (rather than, for example, axial directions) in all exemplary embodiments shown.

[0057] Figures 1A-1D The seals shown in ar...

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PUM

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Abstract

The invention discloses a metal seal with a seam, wherein the metal seal has at least one sealing regions which is delimited on two sides by a respective boundary in order to be in seal-forming contact with at least one corresponding sealing surface, wherein the seam is provided with at least one weld seam, which is characterized in that each weld seam extends only outside the boundaries of at least one sealing region, such that he metal seal at eh seam between the boundaries of at least one sealing region is unwelded over the entire thickness of the seam.

Description

technical field [0001] The present invention relates to seals. The invention particularly relates to metal seals. The invention also relates to metal seals made of high temperature resistant materials. The invention also relates to non-seamless metal seals made of wire or band material. Background technique [0002] Hitherto, it has been common practice to punch such seals out of solid material, or to form loops of wire or strip material which are welded at the joints to form annular seals. [0003] For example, in U.S. Patent Application US 2006 / 0237963 by G. Moore entitled "Seal for forming a brazed joint (used to form a seal for a brazed joint)" and Rowe et al. In the US patent application US 2004 / 0239053 ", an existing metal seal is described. [0004] This type of seal, which is made of a strip of material bent into a ring, generally has the disadvantage of leakage at the point where the ring seal is closed by the weld. An alternative solution is to make such a sea...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/08B23K26/21
CPCF16J15/0887
Inventor 克劳斯·施密特
Owner FEDERAL MOGUL SEALING SYST GMBH (DE)