Straight-through type three-cavity silencer

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...

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.

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