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Seal assembly for relieving pressure

A sealing device and pressure technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve problems such as failure of the pressure release function of the sealing device

Active Publication Date: 2009-05-27
TRELLEBORG SEALING SOLUTIONS GERMANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Opening or releasing the unloading hole or unloading channel too early will invalidate the pressure relief function of the sealing device, and the medium under pressure may flow from the high pressure side to the low pressure side

Method used

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  • Seal assembly for relieving pressure
  • Seal assembly for relieving pressure
  • Seal assembly for relieving pressure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] figure 1 A sectional view of a sealing arrangement 1 is shown in which a sealing ring 2 and a pretensioning element 3 are arranged between a first machine part 4a and a second machine part 4b. The second machine part 4 b —here a piston — is guided in the direction of translation 100 relative to the first machine part 4 a designed as a cylinder and is displaceable in the direction of translation 100 . The two machine parts 4 a and 4 b enclose a box-shaped groove space 5 in cross section, which has a low-pressure side groove side 51 , an opposite high-pressure side groove side 52 and a groove bottom 53 . In order to seal off the low-pressure side N and the high-pressure side H, the sealing ring 2 and the pretensioning element 3 are inserted into the groove space 5 and pressed, deformed and tensioned therein such that the pretensioning element 3 is A force directed in direction 200 is exerted on sealing ring 2 . The total force 200 has a radial force component 210 and a...

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PUM

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Abstract

In a seal assembly (1) for sealing a high-pressure side (H) in relation to a low-pressure side (N) with at least one relief bore or relief channel (6) for pressure relief, a sealing ring (2) and at least one prestressing element (3) are arranged in a groove space (5) between two machine parts (4a, 4b) that can be displaced towards one another in a translatory manner, in such a way that the prestressing element (3) tensions the sealing ring (2) with both a radial force component (210) and an axial force component (220), and the sealing ring (2) lies against the second machine part (4b) and the groove flank (51) on the low-pressure side by means of defined contact surfaces (20, 22).

Description

technical field [0001] The invention relates to a sealing device for sealing a high-pressure side relative to a low-pressure side between two machine parts movable in translation relative to each other, the sealing device comprising a ductile-elastic / viscoplastic A sealing ring and at least one rubber-elastic pretensioning element, wherein one or more relief holes or relief channels (grooves) are arranged in the sealing ring, and the relief holes or relief channels have on one side In the pressurized state of the seal, the low-pressure side is open towards the low-pressure side, while the other side has a high-pressure side opening. Background technique [0002] For seals located between machine parts that are movable relative to each other, in the intermediate space between the individual sealing elements, such as primary and secondary seals, during operation, i.e. when the two machine parts move in translation relative to each other , there will be an increase in medium ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/32F16J15/16F16J15/56
CPCF16J15/3208F16J15/164
Inventor H·约尔丹
Owner TRELLEBORG SEALING SOLUTIONS GERMANY