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Sealing structure and valve assembly including the sealing structure

A sealing structure and elastic sealing technology, applied in the direction of engine sealing, lift valve, valve device, etc., can solve the problem of adhesive inappropriateness and failure

Active Publication Date: 2021-03-23
THE BOEING CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is known to utilize adhesives and / or bonding agents to retain elastomeric seals within the gland; however, adhesives may not be suitable for some applications and may fail when the seal is repeatedly toggled between closed and open positions, and / or may fail when the seal is subjected to extreme temperatures, extreme temperature changes, and / or certain fluids such as solvents

Method used

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  • Sealing structure and valve assembly including the sealing structure
  • Sealing structure and valve assembly including the sealing structure
  • Sealing structure and valve assembly including the sealing structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0257] Clause 1. Sealing structure comprising:

[0258] a first body defining a first surface;

[0259] A second body that defines:

[0260] (i) the second surface;

[0261] (ii) a gland extending from the second surface into the second body and defining a gland opening on the second surface, wherein the gland does not have both a tool entry point and a tool exit point; and

[0262] (iii) a retaining structure that projects partially across the gland to at least partially define the gland opening; and

[0263] An elastomeric seal housed within the gland, where:

[0264] (i) retaining structure to retain the elastomeric seal within the gland; and

[0265] (ii) The elastomeric seal forms a fluid seal between the first body and the second body when the elastomeric seal comes into press engagement with both the first surface and the gland.

[0266] Clause 2. The sealing structure of clause 1, wherein the retaining structure is at least one of the following:

[0267] (i) is r...

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Abstract

A sealing structure and a valve assembly including the sealing structure are disclosed herein. The sealing structure includes a first body defining a first surface. The sealing structure also includes a second body defining a second surface. The second body also defines a gland that extends into the second body from the second surface, defines a gland opening on the second surface, and has neither a tool entry point nor a tool exit point. The second body further defines a retaining structure that partially projects across the gland. The sealing structure also includes an elastic sealing body arranged in the gland. The retention structure retains the elastomeric seal within the gland, and the elastomeric seal forms a fluid seal between the first body and the second body when the elastomeric seal comes into press engagement with both the first surface and the gland.

Description

technical field [0001] The present disclosure generally relates to sealing structures and valve assemblies including such sealing structures. Background technique [0002] A sealing structure may be used to form a fluid seal between the first body and the second body. Some sealing structures utilize an elastic sealing body, such as a sealing ring, to form a fluid seal between the first body and the second body. In such a sealing structure, a gland, a land, a channel, and / or a groove may be formed in the first body and / or in the second body, and an elastic sealing body may be placed in the gland , so that the elastomeric seal remains at or within the interface region between the first body and the second body. [0003] In some applications, such as valve assemblies, the sealing structure can be repeatedly switched between a closed position in which a fluid seal is present, a neutral (i.e., zero-force) position, and / or an open position in which there is no fluid seal, and I...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K1/46F16K37/00
CPCF16K1/46F16K37/0041F16J15/062F16J15/064F16J15/10F16K1/465
Inventor C·C·威特G·D·格雷森
Owner THE BOEING CO