Multi-stage silencing structure for all terrain vehicle

Abstract

The invention relates to a multi-stage silencing structure for an all terrain vehicle. The structure comprises an air inlet pipe, an air outlet pipe and a silencer shell. The multi-stage silencing structure also comprises a plurality of buffer pipes, an air flow dispersing plate, primary filter screens, a secondary filter screen, a primary silencing layer and a secondary silencing layer. The plurality of buffer pipes comprise an arc-shaped end portion and a plurality of buffer pipes arranged in an array, and the buffer pipes and the arc-shaped end portion are integrally formed; one end, extending into the silencer shell, of the air inlet pipe communicates to the arc-shaped end portion, and the air outlet pipe extends out of the other end of the silencer shell; the air flow dispersing plateis fixed to the connection of the air inlet pipe and the arc-shaped end portion; the primary filter screens are arranged in the plurality of buffer pipes; the end portions of the buffer pipes are close to the primary silencing layer, the primary silencing layer and the silencer shell are in interference fit, the secondary silencing layer and the primary silencing layer form a cavity, and the secondary silencing layer and the silencer shell are in interference fit; the secondary filter screen is arranged close to the air outlet pipe, and the secondary filter screen is compressed to the silencer shell. The multi-stage silencing structure provided by the invention purifies and treats tail gas while achieves multi-stage silencing.

Description

technical field [0001] The invention relates to the technical field of mufflers for motor vehicles, in particular to a multi-stage muffler structure for beach vehicles. Background technique [0002] The muffler is a device that prevents sound transmission and allows airflow to pass through, and is an important measure to eliminate aerodynamic noise. The muffler is installed on the air flow channel of aerodynamic equipment (such as blower, air compressor, boiler exhaust, generator, water pump and other equipment with high exhaust noise) or in the intake and exhaust system to reduce noise. device. [0003] Existing mufflers for motor vehicles (the present invention is aimed at beach vehicles) have the following problems: on the one hand, the internal structure of existing mufflers has great resistance to exhaust, and exhaust is easily blocked, which reduces the effective output efficiency of the engine; On the other hand, the silencing structure of the existing muffler is re...

AI Technical Summary

Problems solved by technology

[0003] Existing mufflers for motor vehicles (the present invention is aimed at beach vehicles) have the following problems: on the one hand, the internal structure of existing mufflers has great resistance to exhaust, and exhaust is easily blocked, which reduces the effective output efficiency of the engine; On the other hand, the sound-absorbing structure of existing mufflers is relatively single, and most of them adopt single-stage or single-pipe sound-absorbing parts, and its sound-absorbing effect is not ideal; on the other hand

Most of the existing mufflers are not equipped with reasonable exhaust gas purification treatment devices, which will cause certain pollution to the air

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