Exhaust noise treatment device for fuel vehicles

Abstract

An exhaust noise treatment device for fuel vehicles, comprising an exhaust pipe of the automobile, several first through holes evenly distributed on the side of the exhaust pipe, a first conical cylinder installed inside the exhaust pipe, the large end surface of the first conical cylinder and the exhaust pipe The inside of the trachea is in contact and fit, the second cone is installed inside the first cone, the small end surface of the third cone is fixedly connected with the sleeve, and several countersunk holes are evenly opened on the outside of the third cone. The present invention is suitable for Noise reduction of automobile exhaust, the exhaust exhaust passes through the large end face of the first conical cylinder, the exhaust gas passes through the second through hole from the middle of the ring, and then is discharged into the atmosphere, followed by the exhaust emission and noise, the noise passes through the rotating The first blade reduces the energy of the sound wave, and is reflected inside the first cone, the energy of the sound wave is reduced again, thereby reducing the noise. The device has a simple structure and is easy to disassemble and assemble, which can improve the exhaust emission and improve the efficiency of the engine. , energy saving and emission reduction, reducing exhaust noise can also protect the exhaust pipe to a certain extent.

Description

technical field [0001] The invention belongs to the field of noise processing devices, in particular to an exhaust noise processing device for fuel vehicles. Background technique [0002] The number of automobiles in our country is increasing. People's requirements for automobiles are no longer just means of transportation, but also energy-saving, environmental protection, aesthetics and comfort. The traffic noise of motor vehicles is the main source of urban road noise. Noise regulations will continue to be stricter. However, in the production and processing of general mufflers, the resistive mufflers and resistive mufflers that are mainly used in the market can only deal with high-frequency or low-frequency noise separately, and the scope of application is not wide. Wide, and as far as the resistive muffler is concerned: in high temperature, water vapor and gas that is corrosive to sound-absorbing materials, the service life of the muffler is short, and the effect on low-f...

AI Technical Summary

Problems solved by technology

[0002] The number of automobiles in our country is increasing. People's requirements for automobiles are no longer just means of transportation, but also energy-saving, environmental protection, aesthetics and comfort. The traffic noise of motor vehicles is the main source of urban road noise. Noise regulations will continue to be stricter. However, in the production and processing of general mufflers, the resistive mufflers and resistive mufflers that are mainly used in the market can only deal with high-frequency or low-frequency noise separately, and the scope of application is not wide. Wide, and as far as the resistive muffler is concerned: in high temperature, water vapor and gas that is corrosive to sound-absorbing materials, the service life of the muffler is short, and the effect on low-frequency noise is poor; the biggest disadvantage is that the power loss of the muffler is too large; and In the general single muffler filter hole, the noise treatment effect is not obvious, which in turn affects the efficiency of the entire muffler process

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