Off-road vehicle silencer

Abstract

An off-road vehicle silencer comprises a main cavity, an intake pipe, an exhaust pipe and a middle pipe. Cavity walls, a front end cover and a rear end cover enclose the main cavity, the main cavity is divided into a front cavity, a middle cavity and a rear cavity by a front partition plate and a rear partition plate which are arranged in the main cavity, the exhaust pipe sequentially penetrates the middle cavity and the rear cavity, an air inlet end of the exhaust pipe is positioned in the front cavity and is flared, an air outlet end of the exhaust pipe is provided with two branch pipes extending out of the rear end cover, the two branch pipes are parallel, each branch pipe is provided with an air outlet, the intake pipe penetrates the front cavity and extends into the middle cavity, the portion of the intake pipe positioned in the front cavity is provided with a through hole, the punching rate of the middle of the intake pipe is higher than that of two ends of the intake pipe, the middle pipe penetrates the middle cavity, a front end opening of the middle pipe is positioned in the front cavity, the rear end of the middle pipe is sealed, and at least one through hole is formed in the wall of the middle pipe positioned in the middle cavity. The off-road vehicle silencer is designed for a high-power off-road vehicle, by the aid of the structural characteristics of the off-road vehicle silencer, engine power loss can be reduced, engine power is improved, and the requirements of the off-road vehicle for large emission and enough power are met.

Description

technical field [0001] The invention relates to an automobile exhaust muffler, in particular to an off-road vehicle muffler. Background technique [0002] With the improvement of industrialization, the scope of noise hazards is expanding, and the cost of energy use is getting higher and higher. Traffic noise has become the most important noise source in the current urban environmental noise. Exhaust noise is the main noise source of automobiles and their engines. The muffler is the most effective noise reduction method commonly used to control exhaust noise, and the market share of off-road vehicles in my country is relatively high. In the prior art, the muffler performance of most exhaust mufflers depends on the general expansion cavity structure, and the sound waves are directly radiated from the main cavity wall to the outside world, which directly causes most of the noise to be directly transmitted to the outside world, causing noise pollution. [0003] In real life, off...

AI Technical Summary

Problems solved by technology

In the prior art, the muffler performance of most exhaust mufflers depends on the general expansion cavity structure, and the sound waves are directly radiated from the wall of the main cavity to the outside world, which directly causes most of the noise to be directly transmitted to the outside world, causing noise pollution

[0003] In real life, off-road vehicles have a powerful engine with high power. The existing exhaust muffler has a large pressure loss, which cannot meet its needs. , to reduce environmental pollution from noise

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