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What does a car muffler do

(Summary description)The car muffler is generally used to reduce the noise caused by the engine of the motor vehicle. The principle is that the car exhaust pipe is composed of two pipes with different lengths.

What does a car muffler do

(Summary description)The car muffler is generally used to reduce the noise caused by the engine of the motor vehicle. The principle is that the car exhaust pipe is composed of two pipes with different lengths.

Information

The car muffler is generally used to reduce the noise caused by the engine of the motor vehicle. The principle is that the car exhaust pipe is composed of two pipes with different lengths. The two pipes are first separated and then meet, because the two pipes have The difference in length is equal to half the wavelength of the sound wave emitted by the car, so that the interference of the two columns of sound waves when they are superimposed cancels each other out and weakens the sound intensity, so that the transmitted sound is reduced, then it will have the effect of silencing.

The muffler of the car can reduce the exhaust noise of the engine, and make the high temperature exhaust gas can be discharged safely and effectively. As part of the exhaust pipe, the muffler should ensure smooth exhaust, small resistance and sufficient strength. The muffler needs to withstand the high temperature exhaust gas of 500 ℃ ~ 700 ℃ to ensure that it will not be damaged or lose the muffler effect within the specified driving range of the car.

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