Automobile exhaust system includes exhaust manifold, oxygen sensor, three-way catalytic converter, front and rear muffler, etc. The normal operation of the whole system is related to the normal operation of the engine, and the operation of the engine will also affect the normal operation of the engine. Automobile exhaust system and normal operation of automobile. It will certainly start cold at low temperature. From cold start to engine temperature (about 90 ° C), the thermal efficiency will increase to the highest level at the same time; on the contrary, due to the low temperature of the engine, the thermal efficiency will be reduced and the energy conversion ratio will be smaller. It will become worse, and theoretically the power of the engine will become worse during the cold start phase. Insufficient combustion will inevitably generate carbon deposits. These carbon deposits are removed from the engine together with exhaust gas. They First through the exhaust manifold and then through the three-way catalytic converter.

 

The three-way catalytic converter refers to carbon monoxide, hydrocarbons and nitrogen oxides. There are supports and catalysts in the three-way catalytic converter. Through redox chemical reaction, the harmful gases carbon monoxide, hydrocarbons and nitrogen oxides discharged from the exhaust pipe are converted into water, carbon dioxide and nitrogen. The three-way catalytic converter is essential for regularly removing carbon deposits, otherwise the blockage of the exhaust system will inevitably affect the exhaust, increase the fuel consumption of the vehicle, and even affect the power of the vehicle.

 

The engine absorbs oxygen to promote the fuel combustion of the internal combustion engine, so as to generate stable power to drive the car. The exhaust pipe is responsible for discharging the combustion waste. When the exhaust emission noise of automobile engine, the country has certain standards for this kind of noise. How to achieve the effect of noise reduction? At this time, it is necessary to make the exhaust travel along the path of blocking and vortex layer by layer to offset the exhaust shock wave generating noise, and then make the exhaust discharge from the exhaust pipe. It can be seen that the role of automobile exhaust system is not small.

 

The engine works by burning gasoline, and the exhaust pipe is connected with the engine to discharge the exhaust gas to the car. If the exhaust pipe is blocked, the engine will no longer work, which will lead to direct flameout. If the exhaust pipe is blocked when parking, the car will not start at all.