An Introduction To Motorcycle Muffler

Motorcycle muffler, a device that allows airflow to pass through and attenuates noise, is an important device of motorcycle. The performance of muffler not only affects the noise of motorcycle, but also has a great impact on the power, fuel consumption, torque and other performance of engine. Thus, it is very necessary to know the working principle, structure, and maintenance of motorcycle muffler.

Types Of Motorcycle Muffler

According to different silencing principles, OEM motorcycle muffler can be divided into the following three types:

Resistive muffler

The muffler uses the sound absorption function of silencing materials or sound-absorbing structures to attenuate the noise propagating along the pipeline with distance, so as to achieve the purpose of silencing. Commonly used sound-absorbing materials include glass fiber, low carbon steel wire mesh, felt, etc. This kind of muffler has good silencing effect on high-frequency noise, but poor silencing performance at low frequency. In addition, because the sound-absorbing material is easy to be melted by the high-temperature exhaust gas discharged by the engine, the service life is short, and it is easy to be blocked by carbon deposition and oil sludge to reduce or lose the silencing effect, so a single resistive muffler is rarely used on motorcycles.

Reactive muffler

With the help of the sudden expansion (or contraction) of the pipe section or the side connected resonant cavity, the sound wave of some frequencies propagating along the pipe is reflected back to the direction of the sound source at the sudden change, so as to achieve the purpose of silencing. It is more suitable for eliminating low if noise, but it has poor silencing effect on high frequency noise.

Impedance composite muffler

This kind of muffler combines the silencing principle of resistive muffler and resistant muffler through appropriate structure, and has the silencing characteristics of both. Because the noise frequency band generated by the motorcycle engine noise source is wide, in order to obtain better silencing effect in a wide range of low, medium and high near rate, most motorcycles choose this impedance composite muffler.

Regular Maintenance Of Muffler

Because the fuel is not 100% completely burned when the engine is working. In addition, the fuel also contains certain impurities. Therefore, when the high-temperature exhaust gas discharged by the engine passes through the exhaust muffler, carbon deposits will be generated on the cylinder core and diaphragm of the muffler.

Over time, the accumulated carbon will block the air flow channel, increase the exhaust resistance, reduce the silencing performance, make the engine weak, and affect the normal driving of the vehicle. In serious cases, it will lead to the blue of the exhaust pipe and the damage of the engine due to too high temperature. Therefore, regular maintenance and cleaning of motorcycle muffler is very necessary. Under normal circumstances, the carbon deposits on the silencing cylinder and cylinder core shall be removed every 3000 kilometers. The exhaust pipe and muffler shall be removed every 6000 kilometers to remove the carbon deposits in the cylinder exhaust port, exhaust pipe and muffler.

It is suggested to buy the device form regular motorcycle muffler supplier, such as KALIDA. It is a Chongqing motorcycle muffler supplier form China.