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Metal sealing ring and method of forming a metal-to-metal seal

A technology of metal sealing ring and sealing part, which is applied in the direction of engine sealing, engine sealing device, piston ring, etc., can solve the problems such as the quality decline of the sealing part

Pending Publication Date: 2022-01-14
TOKAMAK ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] While wedge flanges and metal gaskets can be used to form very good seals, such as in ultra-high vacuum systems, they have a number of disadvantages, including the need for careful alignment of the flange with the metal gasket ("fit" ) and high clamping force
The quality of the seal can also be severely degraded if the compressive load on the gasket is uneven or too high

Method used

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  • Metal sealing ring and method of forming a metal-to-metal seal
  • Metal sealing ring and method of forming a metal-to-metal seal
  • Metal sealing ring and method of forming a metal-to-metal seal

Examples

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Embodiment Construction

[0039] figure 1 A section of a metal sealing ring 1 is shown, comprising a body 3 formed by a hollow metal tube with a cross section 5 . Although the figure shows only a section of the ring 1 , the body 3 extends around a circle to form a ring. The metal seal ring 1 also includes an inlet tube 7 extending radially outwards from the outer wall of the body 3 and joined to the body by a "T"-shaped joint 9 . In this example, the end 11 of the inlet pipe 7 is not sealed, however, as described below, in some cases this end 11 may be sealed to maintain the internal pressure within the metal seal ring 1 .

[0040] The metal sealing ring 1 is located between a pair of paired circular metal flanges 13A, 13B. In this example, each of the flanges 13A-13B has one of a pair of complementary circumferential grooves or channels 15A-15B which together accommodate a metallic seal ring 1 ontology 3. As described below, the cross-section 5 of the body 3 of the metal seal ring 1 is adapted to ...

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Abstract

A metal sealing ring (1) for forming a metal-to-metal seal between two opposing metal surfaces. The metal sealing ring (1) comprises a tubular metal body (3) and an inlet tube (7) extending from the body (3) for introducing an internal pressure into the body (3). The body is adapted to deform under the internal pressure against each of the opposing metal surfaces to form the seal (1).

Description

technical field [0001] The present invention relates to metal seal rings and methods for forming metal-to-metal seals. In particular, but not exclusively, the invention relates to a metal sealing ring for sealing a vacuum chamber or piston engine, such as a vacuum chamber in a tokamak fusion reactor. Background technique [0002] Metal seal rings are commonly used to provide an air-tight or liquid-tight seal between two metal surfaces, for example between flanged ports of two vacuum chambers bonded together . In some applications, metal seal rings are flat, circular metal gaskets made of relatively soft metals (such as copper or aluminum) that are crushed between metal surfaces, usually made of harder metal surfaces. metal (for example, stainless steel). The metal surfaces or "conflat flanges" are each provided with rounded ridges or "knife edges" that bite into the corresponding face of the gasket, so that the metal of the gasket is pressed around the knife edge and thus...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/10F16J9/08F16J9/12F02F11/00G21B1/05G21B1/17
CPCF16J15/104F16J9/08F16J9/12F02F11/00F02F11/002G21B1/057G21B1/17F16J15/0881F16J15/0893F16J15/46Y02E30/10
Inventor 安东尼·维维安·兰特里
Owner TOKAMAK ENERGY