Does the exhaust muffler work
- Categories:Silencer Products News
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- Time of issue:2022-12-16
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(Summary description) All countries in the world have strict regulations on the noise limit of various vehicles, and the exhaust muffler is such a device for reducing exhaust noise.
Does the exhaust muffler work
(Summary description) All countries in the world have strict regulations on the noise limit of various vehicles, and the exhaust muffler is such a device for reducing exhaust noise.
- Categories:Silencer Products News
- Author:
- Origin:
- Time of issue:2022-12-16
- Views:0
The exhaust muffler of a car is the main component of driving noise. All countries in the world have strict regulations on the noise limit of various vehicles, and the exhaust muffler is such a device for reducing exhaust noise.
Automobile mufflers can be divided into three types: resistive muffler, resistive muffler and impedance compound muffler according to the principle and structure of muffler
1. Resistant muffler Resistant muffler is when various mufflers such as expansion chamber and resonance chamber are composed of pipes, baffles and other components inside, the sound wave will be reflected and interfered during propagation, and the sound energy will be reduced to achieve the purpose of muffler. Resistant mufflers have a limited noise reduction frequency band, usually have good noise reduction effects on low and medium frequency bands, and have poor high frequency noise reduction effects. Most trucks use resistant mufflers.
2. Resistive muffler E is a muffler that fills sound-absorbing material around the pipe through which the internal exhaust passes to absorb sound energy to achieve the purpose of muffler. It has a good noise reduction effect on medium and high frequency, and it is rarely used as an automobile exhaust muffler, and it is usually used in combination with a resistant muffler.
3. Impedance Composite Muffler It is a muffler composed of resistive muffler units and sound-absorbing materials, and it has the common characteristics of resistive and resistive mufflers. It has a good noise reduction effect on low, medium and high frequency noise.
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