Metal gasket with fishbone-shaped section and inclined teeth

A metal gasket and tooth-shaped technology, which is applied in the sealing of engines, flange connections, pipes/pipe joints/fittings, etc., can solve the problem of small metal resilience, easy damage to the flange surface, and the inability to use fluid pressure to seal the compensation force and other issues to achieve high resilience and improve reliability

Active Publication Date: 2013-04-24
ENVIRONMENTAL GASKET COMPANY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The advantages of the toothed gasket are that it is suitable for high pressure and high temperature parts, has strong corrosion resistance, and has a stable and reliable sealing effect, but there are also some disadvantages: (1) The angle of 90 degrees makes the pressure open; (2) Tooth-shaped sharp corners are easy to damage the flange surface; (3) The resilience of the metal itself is small, and the sealing compensation force generated by the fluid pressure is basically unable to be used

Method used

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  • Metal gasket with fishbone-shaped section and inclined teeth
  • Metal gasket with fishbone-shaped section and inclined teeth
  • Metal gasket with fishbone-shaped section and inclined teeth

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Embodiment Construction

[0018] The present invention will be further described in detail below with reference to the drawings and embodiments.

[0019] versus figure 1 The existing sharp-angled gaskets are different. The tooth tip angles of the gaskets of the present invention are non-sharp angles, and some or all of the teeth are arranged obliquely toward the pressure source. When the pressure source is inside the gasket, the gear ring Internal tilt, see figure 2 , image 3 with Figure 4 As shown, the tops of the teeth are rounded or flat, and are evenly arranged. The cross-section of the entire gasket is like a "fish bone" shape. Figure 5 It is the non-uniform arrangement and distribution of the spur gear rings, and there can be vacant toothless areas between the gear rings, forming a double-sealed or multi-sealed gasket structure.

[0020] In addition to the above-mentioned single round tooth or flat tooth structure, the gasket can also adopt a combination of these two structures, such as Image 6 wi...

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Abstract

The invention discloses a metal gasket with fishbone-shaped section and inclined teeth. The peripheral direction of the upper end face and the lower end face of the gasket distributes annular tooth-shaped grooves. Teeth of the tooth-shaped grooves are integrated with the metal gasket and are arranged slantingly to a direction of pressure source. The section of the gasket is in the shape of a fishbone. The angle of inclination is more than 0 degree and less than 90 degrees. The contact surface of the top of teeth and the flange is of no closed angle. The top points of teeth are designed into rounded shape, flat angle or wave arc angle and the contact surfaces with the flange are round or flat so that damaging to the surface of the flange by the traditional closed-angle teeth is avoided. The design of the inclined tooth improves the rebound resilience of the metal gasket. The tooth-shaped grooves arranged slantingly on the ring surface form a plurality of sealed compress-resisted chambers to release the pressure from a pressure source gradually. The seal chambers utilize the fluid pressure to generate sealed balancing force effectively so as to improve the sealed reliability.

Description

Technical field [0001] The invention relates to a sealing gasket, in particular to a fishbone oblique tooth-shaped metal gasket. Background technique [0002] Toothed gasket is a kind of metal soft gasket, its sealing effect is better than that of metal flat gasket. Generally, the two sides of the metal stainless steel flat gasket are processed into concentric 90-degree wave serrated grooves with a precision lathe. According to the different parts of use and requirements, the toothed gasket can be made into a combined gasket with inner and outer positioning rings and flexible graphite or PTFE sheets on both sides. [0003] The advantages of toothed gaskets are suitable for high pressure and high temperature parts, strong corrosion resistance, stable and reliable sealing effect, but there are also some shortcomings: (1) The 90-degree angle makes the pressure exposed to open; (2) The tooth-shaped sharp corners are easy to damage the flange surface; (3) The metal itself has a small r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L23/20
CPCF16J15/0887F16J15/0818F16J15/08F16J15/0806
Inventor 赵晶玮张军杨帆
Owner ENVIRONMENTAL GASKET COMPANY
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