Low-noise intake device

Abstract

The invention relates to a low-noise intake device. The low-noise intake device comprises an intake pipe, a first resonant cavity, a second resonant cavity, a first connecting pipe and a second connecting pipe, wherein the first connecting pipe enables the intake pipe and the first resonant cavity to communicate, and the second connecting pipe enables the intake pipe and the second resonant cavityto communicate. The low-noise intake device is characterized in that the size of the first resonant cavity is the same as or different from that of the second resonant cavity, the first connecting pipe is further provided with a third pipe section which is located between the first resonant cavity and the intake pipe, the second connecting pipe is further provided with a fourth pipe section located between the second resonant cavity and the intake pipe, and the lengths of the third pipe section and the fourth pipe section are the same. The low-noise intake device can better reduce noises, theoccupied space of the whole low-noise intake device is reduced, and the structure is more compact.

Description

technical field [0001] The invention relates to a low-noise air intake device. Background technique [0002] Generally, the air intake system of a vehicle is used to purify the air entering the engine and suppress the intake noise generated by the engine. The air intake system consists of air intake pipes, air filters and air pipes. In the prior art, in order to reduce the resistance of the air in the pipeline, the air intake pipeline is only set to consider the gas flow inside itself. During the working process of the engine, especially when the load suddenly increases, the intake air flow of the engine will fluctuate greatly, and the engine intake air flow will fluctuate greatly. The air filter device, the air filter, produces noise when it is hit by an unstable air flow. [0003] Therefore, it is necessary to improve the existing low-noise intake device, improve the space utilization rate of the low-noise intake device and make the structure of the low-noise intake devi...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a low-noise air intake device, the low-noise air intake device at least partially inserts the connecting pipe into the resonant cavity, thus solving the problems of the above-mentioned low-noise air intake device occupying a large space and not having a compact structure. question

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