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Multi-layer flow guiding composite bellows

A bellows and composite technology, applied in the field of bellows, can solve the problems of failure of bellows, failure to meet emission noise standards, noise, etc., to achieve the effect of extending service life, good sealing performance, and solving noise emission

Inactive Publication Date: 2019-01-25
江苏润杨汽车零部件制造有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0002] The corrugated pipes currently used are single-layer or double-layer pipes, which are used for shock absorption and buffering between the engine and other connecting parts in the vehicle exhaust system. Fracture failure, and due to the size change between the internal waves of the bellows, the corresponding noise is generated, so that it does not meet the emission noise standards above the National VI. In view of this, it is necessary to make a traditional bellows Improve

Method used

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Embodiment Construction

[0016] The present invention will be specifically introduced below in conjunction with the accompanying drawings and specific embodiments.

[0017] see figure 1 and 2 , a multi-layer guide composite bellows of the present invention, including a body, the body includes a bellows, a guide tube, a protection net and a reinforcement ring, the bellows adopts a 4-layer structure, and the guide tube is sleeved inside the bellows , the protection net is set on the outside of the bellows, the two ends of the bellows are provided with straight ends, and the reinforcing ring is set on the outside of the straight ends to connect the related parts by welding. The process is formed at one time.

[0018] The invention has good anti-fatigue effect, the production process adopts hydraulic molding, no air leakage, no water leakage, good sealing performance, and because the product has four layers, there is a certain isolation space between the layers, and the solid insulation performance is g...

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Abstract

The invention discloses multi-layer flow guiding composite bellows comprising a body. The body comprises bellows, a guiding tube, a protection net and reinforcing rings the guiding tube is arranged inside the bellows in the sleeve mode, and the protection net sleeves the bellows. Two ends of the bellows are provided with straight ends, and the reinforcing rings sleeve the outsides of the straightends to weld related parts. The bellows have good solid heat insulation performance, effectively achieve noise emission and greatly prolong the service life of metal bellows.

Description

technical field [0001] The invention belongs to the technical field of corrugated pipes, and in particular relates to a multilayer guide composite corrugated pipe. Background technique [0002] The corrugated pipes currently used are single-layer or double-layer pipes, which are used for shock absorption and buffering between the engine and other connecting parts in the vehicle exhaust system. Fracture failure, and due to the size change between the internal waves of the bellows, the corresponding noise is generated, so that it does not meet the emission noise standards above the National VI. In view of this, it is necessary to make a traditional bellows Improve. Contents of the invention [0003] In order to solve the deficiencies of the prior art, the object of the present invention is to provide a multi-layer diversion composite bellows with good thermal insulation performance, effectively solve the noise emission, and greatly prolong the service life of the metal bell...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16L9/18F16L57/02
CPCF16L9/18F16L57/02
Inventor 杨猛
Owner 江苏润杨汽车零部件制造有限公司
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