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Automobile NVH noise reduction intake pipe

An air intake pipe and noise reduction technology, applied in the field of air intake pipes, can solve problems affecting driving comfort, loud noise, etc., and achieve good noise reduction and noise reduction effects and simple structure

Inactive Publication Date: 2017-04-05
JIANGSU XINGCHENXING AUTO ACCESSORIES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, it is easy to generate a lot of noise when the air is inhaled, which affects the comfort of driving.

Method used

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  • Automobile NVH noise reduction intake pipe

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Experimental program
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Effect test

Embodiment Construction

[0009] Below in conjunction with accompanying drawing, the specific method of the present invention is described in further detail:

[0010] As shown in the figure, a NVH noise-reducing air intake pipe for automobiles includes an air intake pipe body 1, a layer of sound-absorbing cotton 2 is arranged on the inner wall of the air-intake pipe body 1, and a layer of steel wire mesh 3 is arranged on the outer side of the sound-absorbing cotton 2, and the steel wire mesh 3 and The inner wall of the intake pipe body 1 is fixedly connected, the two ends of the intake pipe body 1 are respectively equipped with connecting pipes 4, and the connecting pipe 4 and the intake pipe body 1 are vibrated and friction welded. The connecting pipe 4 includes an inner pipe 5 and an outer pipe 6. The outer pipe 6 is sleeved on the outside of the inner pipe 5 and forms a closed cavity 8. The outer pipe 6 and the inner pipe 5 are fixedly connected by a reinforcing rib 7. The inner pipe is provided with...

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PUM

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Abstract

The invention relates to an Automobile NVH noise reduction intake pipe which comprises an intake pipe body. A layer of sound absorbing cotton is arranged on the inner wall of the intake pipe body. A steel wire mesh is arranged on the outer side of the sound absorbing cotton. The steel wire mesh is fixedly connected with the inner wall of the intake pipe body. Both ends of the intake pipe body are respectively provided with a connection pipe. Each connection pipe comprises an inner pipe and an outer pipe, and the outer pipe sleeves the inner pipe to form a closed cavity. Each outer pipe is fixedly connected with an inner pipe through a reinforcing rib. Each inner pipe is provided with a number of sound absorbing holes which are communicated with a closed cavity.

Description

technical field [0001] The invention relates to an air intake pipe, in particular to an NVH noise reduction air intake pipe for automobiles. Background technique [0002] The supercharger intake pipe is a device that connects the air filter on the side of the frame with the turbocharger of the engine more closely through the outside of the engine. Because it is a tubular structure installed around the outside of the engine, it is usually made of high-quality rubber and stainless steel, and it is also lined with cord and steel wire helix. The role of the supercharger intake pipe is mainly to guide the air filtered from the air filter into the turbocharger of the engine. Therefore, whether its structural design is reasonable or not directly determines the smoothness of the air flow, and further determines the energy consumption. size. At the same time, it is easy to generate a lot of noise when the air is taken in, which affects the comfort of driving and riding. Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M35/104F01N13/00
CPCF02M35/104F01N13/007
Inventor 肖劲松黄文成
Owner JIANGSU XINGCHENXING AUTO ACCESSORIES