With the development of cars and electric vehicles, the motorcycle market is much smaller than in the past, and many cities have anti motorcycle measures, which has put more pressure on the motorcycle market. However, the motorcycle itself still has its own unique advantages. Its price is relatively cheap, its fuel consumption is relatively cost-effective, and its power and speed are also very good. For some people, it is very in line with their own needs, so there are still many people who like to ride motorcycles.

 

In fact, motorcycles have many similarities with automobiles. They all have fuel engines and designed exhaust pipes. However, there are relatively few auxiliary structures of exhaust pipes of motorcycles. Most motorcycles are only equipped with silencers, but the exhaust pipe structure of motorcycles is also more complex, especially in the internal shape, Different motorcycles are very different. If it is simply classified, the exhaust pipe of motorcycle can be divided into straight through and back pressure, so what is the difference between them?

 

The so-called straight through actually means that the exhaust pipe is like a "chimney", which is basically straight. The tail gas can be discharged smoothly from the inside, and the discharge efficiency is very high; The back pressure means that the exhaust pipe is designed with a back pressure structure, and the tail gas needs to bypass continuously before reaching the exhaust port.

 

The exhaust pipe with straight through structure has high exhaust efficiency, but it will cause direct pollution to the air and make a loud sound. Many racing cars adopt straight through structure, with higher speed limit and better acceleration performance in the second half.

 

The exhaust efficiency of the back pressure exhaust pipe becomes low, and the pressure inside will increase, but the advantage is that it can improve the combustion efficiency of the mixture and reduce noise and exhaust emission. The back pressure exhaust pipe has advantages in initial acceleration, but when the speed is very high, the poor exhaust emission will directly affect the power of the motorcycle, and the speed cannot be improved to a very high level.

 

In fact, this direct and back pressure of motorcycle is also available on the exhaust pipe of automobile, and the design is more complex. More exhaust channels and various sensing, silencing and purification equipment are designed inside the automobile exhaust pipe, and most of them use back pressure exhaust pipe to improve the torque of the engine at medium and low speed, because most automobile engines work at 2000 rpm left and right, and rarely reach high RPM more than 5000 rpm, Therefore, straight exhaust pipes mainly appear in racing cars.

 

The influence of automobile exhaust pipe on automobile power is also very direct. Different cars have different exhaust pipes, which are very different. However, the only common point is that the three-way catalyst will be designed in the current exhaust pipe. It is designed to purify the exhaust gas. Without it, the exhaust gas cannot meet the standard. However, if the three-way catalyst is not maintained for a long time, it may not pass the exhaust gas detection.

 

The main reason for the substandard tail gas is that due to the influence of carbon deposition, the three-way catalyst is covered by carbon deposition, and the gas cannot contact the precious metals on the surface of the catalyst, so the catalytic reaction cannot be completed. In this case, the three-way catalyst can be used for cleaning or disassembled for cleaning. The three-way catalyst has the function of dissolving carbon deposits. When the car is driving, it can automatically clean all parts in the exhaust pipe and have a certain maintenance effect on the exhaust pipe.