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Sealing ring

一种密封环、密封部的技术，应用在密封、发动机的密封、活塞环等方向，能够解决密封效果减弱等问题，达到降低维修费用、可靠密封效果、可靠密封的效果

Active Publication Date: 2016-08-24
BURCKHARDT COMPRESSION AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The sealing ring assembly has the disadvantage that after a certain wear the sealing section suffers from a wear stop, so that a gap forms between the sealing section and the piston rod, which leads to a considerable reduction in the sealing effect
This known sealing ring assembly therefore has the disadvantage that the sealing effect is significantly reduced after a certain amount of wear

Method used

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Examples

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Embodiment Construction

[0031] figure 1 A longitudinal sectional view of a sealing device 10 is shown for sealing a reciprocating piston rod 4 of a piston compressor in an axial direction 4a. The sealing device 10 preferably comprises a plurality of sealing chambers 11 arranged successively along the axis 4a, each having a first side wall 11a and a second side wall 11b, and a sealing ring 1 is arranged in each sealing chamber 11. The air pressure in the sealing chamber 11 drops from a higher pressure P1 to a lower pressure P2 through the sealing ring 1 . This pressure drop is achieved in particular via a sealing gap 43 formed between the end face 3 a of the sealing section 3 and the surface 4 a of the piston rod 4 . as in figure 2 As shown in the embodiment, the sealing ring 1 of the present invention includes a fixed ring 2 extending to 360°, the fixed ring has a circular inner diameter M1 and a central axis M, and the sealing ring includes a plurality of radially movable supports along the centr...

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PUM

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Abstract

The invention relates to a sealing ring (1) for sealing a piston rod comprising a retaining ring (2) having a circular inside diameter (M1) and a center axis (M) and comprising a plurality of sealing segments (3), which are supported in the retaining ring (2) in such a way that the sealing segments can be moved in a direction radial to the center axis (M), wherein each sealing segment (3) has a sealing surface (3a) that is oriented toward the center axis (M) and that extends in a curved manner in a circumferential direction (U) with respect to the center axis (M), and wherein each sealing segment (3) has two lateral sealing-segment guiding surfaces (3b) extending parallel to each other, wherein the sealing surface (3a) ends at one of the two sealing-segment guiding surfaces (3b) at both ends, and wherein the retaining ring (2) comprises a plurality of guiding segments (2a) arranged at a distance from each other in the circumferential direction (U), wherein each two guiding segments (2a) following each other in the circumferential direction (U) have guiding surfaces (2b, 2c) that face each other and that extend parallel to each other, said guiding surfaces being arranged at a distance from each other in such a way and being designed in such a way that, by means of the sealing-segment guiding surfaces (3b) of the sealing segment, the sealing segment (3) is guided on the two lateral guiding surfaces (2b, 2c) and is supported on the two lateral guiding surfaces in such a way that the sealing segment can be moved in the radial direction (R), wherein guiding segments (2a) and sealing segments (3) are arranged in succession in the circumferential direction (U).

Description

technical field [0001] The invention relates to a sealing ring according to the preamble of claim 1 . Background technique [0002] Document EP2060833A1 discloses a sealing ring assembly for sealing a piston rod, wherein the sealing ring assembly includes a sealing ring and a stop ring. The sealing ring arrangement has the disadvantage that after a certain amount of wear the sealing section suffers from wear stops, so that a gap forms between the sealing section and the piston rod, which leads to a considerable reduction in the sealing effect. This known sealing ring arrangement therefore has the disadvantage that the sealing effect decreases considerably after a certain amount of wear. Contents of the invention [0003] The object of the present invention is to design an economically advantageous sealing ring for sealing a piston rod. [0004] This task is achieved by means of a sealing ring having the features of claim 1 . Dependent claims 2 to 14 relate to further ad...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/24F16J15/26F16J15/28F16J15/30
CPCF16J15/24F16J15/26F16J9/20Y10S277/909F16J7/00F16J15/3268
Inventor N·法伊斯特埃尔
Owner BURCKHARDT COMPRESSION AG
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