Straight-through type three-cavity silencer

A muffler and straight-through technology, applied in the direction of mufflers, machines/engines, engine components, etc., can solve the problems of single air flow channel and large noise, and achieve the effect of improving muffler effect, reducing noise and effectively dissipating heat

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

[0014] 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.

[0015] Embodiment 1 of the present invention is, as figure 1 , figure 2 As shown, it includes a muffler cylinder 10, an airflow duct 30 with an inlet end 31 and an exhaust end 32, the airflow duct spans the muffler cylinder, and also includes a first chamber partition 11, a second chamber The chamber partition 12, the first chamber partition and the second chamber partition divide the muffler cylinder into a first chamber group 21, a second chamber group 22, and a third chamber group 23. A plurality of interlayer partitions 13 are provided in the three chamber groups, and the interlayer partitions are composed of two single-layer metal partitions separating a gap layer, the gap layer is a resistive sound-absorbing layer 14, and the The interlayer partition connects the oute...

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PUM

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Abstract

The invention discloses a straight-through type three-cavity silencer. The straight-through type three-cavity silencer comprises a silencer barrel, an air flow pipeline, a first cavity partition and a second cavity partition, wherein the air flow pipeline is provided with an air inlet end and an air exhaust end, the slicer barrel is partitioned into three cavities by the first cavity partition and the second cavity partition, a plurality of interlayer partitions are arranged in each of the three cavities, a resistive silencing layer is arranged in the middle of each interlayer partition, each cavity is partitioned into sub-cavities which form a cavity group by the interlayer partitions, the air flow pipeline penetrates the cavity groups sequentially, and parts, of the air flow pipeline, in the cavity groups are provided with a plurality of breathing holes which are distributed in a staggered manner. The straight-through type three-cavity silencer has the advantages that except for resistive silencing formed by original destructive interference, the resistive silencing layers are further subjected to noise reduction, effects of the resistive silencing layers are enhanced by a naturally formed airflow-circulating path with partial turbulences, the effect of noise reduction is more significant, and the straight-through type three-cavity silencer is simple in structure, stable and beneficial to radiating.

Description

technical field [0001] The invention relates to a straight-through 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 straight-through three-chamber muffler. On the basis of the basic resistance muffler, the straight-through 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 a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F01N1/08
Inventor 杨军张军叶维敏汪庭文何晓鸣
Owner CHENGDU LINGCHUAN SPECIAL IND
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