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Seals and methods of making and/or using them

A technology for seals and main seals, which is applied to engine seals, pump components, engine components, etc., and can solve problems such as failure and short service life of seals

Active Publication Date: 2019-11-01
AB SKF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Conventional seals are prone to failure after extreme heat or use after a relatively short service life

Method used

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  • Seals and methods of making and/or using them
  • Seals and methods of making and/or using them
  • Seals and methods of making and/or using them

Examples

Experimental program
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Embodiment Construction

[0015] Certain terms are used in the following description for convenience only and are not limiting. The words "right", "left", "top" and "bottom" designate directions in the drawings for reference. The words "inwardly" and "outwardly" mean toward and away from, respectively, the geometric center of the seal, and designate parts thereof. The term "dynamic surface" as used in the specification and / or in corresponding parts of the specification means "any surface that moves relative to another surface". For example, when the seal is fixed against the housing in a rest position, except for the side interconnected with the moving part, then the contact surface of the movable part may be considered a dynamic surface. Some examples of dynamic surfaces are the outer surface of a shaft, the outer surface of a piston shaft, the outer surface of a plunger, the inner surface of a cylinder bore, the outer surface of a piston rod, a valve, etc. The term "axial" is used in the claims and...

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PUM

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Abstract

A seal and method of making the same which results in increased service life and is preferably configured to provide a dynamic seal and a static seal while exhibiting improved stiffness.

Description

technical field [0001] The present invention relates generally to seals and, more particularly, to seals suitable for use in extreme environments and / or for extended service life. Background technique [0002] Conventional seals are prone to failure after extreme heat or use after a relatively short service life. It may be advantageous to provide a seal which may comprise: a static seal which is preferably configured to prevent media migration to the gland area; which forms a superior dynamic seal; which is configured to allow thermal and / or chemical expansion in the space provided by the gland; is sufficiently rigid to withstand the harsh environment of prolonged use; is suitable for use as part of new equipment, or can be retrofitted into existing equipment; and / or It provides a long service life. Contents of the invention [0003] Briefly, one embodiment of the present invention relates to a seal configured to seal a dynamic surface movable in an axial direction. The...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/3232F16J15/3208F16J15/3252F16J15/324F16J15/328F04B53/14
CPCF04B53/143F16J15/3208F16J15/3232F16J15/324F16J15/3252F16J15/328F16J15/166F16J15/56F16J9/10F16J9/12
Inventor R·L·查普林D·K·齐廷T·J·赖瑟
Owner AB SKF