Multi-channel three-cavity silencer

A muffler, multi-channel technology, applied in mufflers, machines/engines, engine components, etc., can solve problems such as single airflow channel and loud noise

Inactive Publication Date: 2014-08-13
CHENGDU LINGCHUAN SPECIAL IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] There will be quite a lot of noise when the motor vehicle is running. Usually, installing a muffler on the exhaust pipe of the car is an effective means of noise reduction. At present, the resistance muffler is an important design idea of ​​the muffler, and usually multiple The cavity cascades to enhance the noise reduction effect. The air flow channel is single, and the noise reduction utilization rate and noise reduction effect of the cavity still have room for improvement.

Method used

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Embodiment Construction

[0016] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0017] Embodiment 1 of the present invention is, as figure 1 , figure 2 As shown, it includes a muffler cylinder 10, an intake pipe 21, an exhaust pipe 22, and also includes a first chamber partition 11 and a second chamber partition 12. The first chamber partition, the second chamber The clapboard divides the muffler cylinder into a first chamber group 31, a second chamber group 32, and a third chamber group 33. The inlet pipe 21 extends into the first chamber group, and the exhaust pipe 22 extends into the first chamber group. Entering the third chamber group, the second chamber group in the middle is provided with a second chamber central pipe 23 across the chamber, and a plurality of partition plates 13 are arranged in each chamber group, and the The interlayer partitio...

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Abstract

The invention discloses a multi-channel three-cavity silencer which comprises a silencer barrel body, an air inlet tube and an exhaust tube and further comprises a first cavity partition plate and a second cavity partition plate, wherein the first and second cavity partition plates divide silencer barrel body into a first cavity, a second cavity and a third cavity, the air inlet tube extends into the first cavity, the exhaust tube extends into the third cavity, a second cavity central tube crossing the cavities is arranged in the second cavity in the middle, the cavities are provided with multiple partition plates, the partition plates respectively divide the cavities into cavity groups formed by sub-cavities, and the inside of the second cavity central tube is a resistive silencing portion made of a silencing material. A fin structure is added for the multi-channel three-cavity silencer, the multi-channel three-cavity silencer is provided with the sub-cavities and the resistive silencing portion, and a combined silencing structure is formed to improve the cavity utilization rate and noise reduction effect. In addition, a metal layer of the fin structure effectively helps a silencing layer absorbing sound wave energy and enables the barrel body to effectively radiate heat.

Description

technical field [0001] The invention relates to a multi-channel three-chamber muffler. Background technique [0002] There will be quite a lot of noise when the motor vehicle is running. Usually, installing a muffler on the exhaust pipe of the car is an effective means of reducing noise. The cavity cascades to enhance the noise reduction effect, the air flow channel is single, and there is still room for improvement in the noise reduction utilization rate and noise reduction effect of the cavity. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a multi-channel three-chamber muffler. On the basis of the basic resistance muffler, the multi-channel three-chamber muffler improves the structural form of the resistant chamber and adds a fin structure. , the sub-cavity and resistive noise reduction structure are set up to form a combined noise reduction structure to improve the utilization rate of the chamber and the no...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N13/02
Inventor 张军叶维敏汪庭文何晓鸣杨军
Owner CHENGDU LINGCHUAN SPECIAL IND
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