Vehicle exhaust pipe noise reducing device

A technology for automobile exhaust and exhaust pipes, which is applied in the direction of noise reduction devices, exhaust devices, engine components, etc., which can solve the problems of internal combustion engine noise and unsatisfactory noise reduction effects, and achieve high sound absorption efficiency, good sound absorption effect, and convenience. The effect of installing a fixed

Inactive Publication Date: 2018-11-20
安徽傲尊电子科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of my country's economy, automobiles have become more and more popular, and people have put forward higher and newer requirements for the ride comfort of the whole vehicle. Noise has become an important indicator of ride comfort, but most of the cars are currently powered by internal combustion engines. The internal combustion engine makes a lot of noise when it is working
The inner wall of the traditional automobile exhaust pipe is a smooth linear cavity, and the noise is reduced by setting the sound-absorbing cotton on the inner wall, but the noise reduction effect of this structure is not very ideal

Method used

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  • Vehicle exhaust pipe noise reducing device
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  • Vehicle exhaust pipe noise reducing device

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Embodiment Construction

[0015] In describing the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Back", "Left", "Right", "Vertical", "Horizontal", "Top", "Bottom", "Inner", "Outer", "Clockwise", "Counterclockwise", "Axial", The orientation or positional relationship indicated by "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying the referred device or element Must be in a particular orientation, be constructed in a particular orientation, and operate in a particular orientation, and therefore should not be construed as limiting the invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only, and cannot be interpreted as indicating or implying relative impor...

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PUM

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Abstract

The invention relates to a vehicle exhaust pipe noise reducing device, and belongs to the technical field of vehicle exhaust pipes. The vehicle exhaust pipe noise reducing device comprises an intake pipe, a noise reducing main body and an exhaust pipe; the noise reducing main body comprises an outer shell and an inner shell; a vacuum cavity is formed between the outer shell and the inner shell; and a first flow separation channel and a second flow separation channel are arranged in the inner shell, and are both provided with first noise absorbing cottons. Carbon dioxide of noise gas is absorbed through a carbon dioxide absorber, and is filtered through a filter screen; through arrangement of the flow separation channels, a flow separator, a noise absorbing plate and a noise absorbing pipe,sound waves are absorbed, so that the noise absorbing effect is good, and the noise absorbing efficiency is high; the filter screen is conveniently cleaned and replaced; and the noise reducing deviceis conveniently installed and fixed.

Description

technical field [0001] The invention relates to the technical field of automobile exhaust pipes, in particular to a noise reduction device for automobile exhaust pipes. Background technique [0002] With the development of my country's economy, automobiles have become more and more popular, and people have put forward higher and newer requirements for the ride comfort of the whole vehicle. Noise has become an important indicator of ride comfort, but most of the cars are currently powered by internal combustion engines. Internal combustion engines make a lot of noise when they are running. The inner walls of traditional automobile exhaust pipes are all smooth linear cavities, and the noise is reduced by setting sound-absorbing cotton on the inner walls, but the noise reduction effect of this structure is not very satisfactory. Contents of the invention [0003] The object of the present invention is to provide an automobile exhaust pipe noise reduction device to solve the p...

Claims

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Application Information

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IPC IPC(8): F01N13/08F01N13/18F01N1/10F01N3/08F01N3/022
CPCF01N13/08F01N1/10F01N3/022F01N3/0821F01N3/0857F01N13/18
Inventor 邵敏
Owner 安徽傲尊电子科技股份有限公司
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