What is the function of the air intake system?

The main function of the air intake system is to deliver clean, dry, sufficient and stable air for the engine, so as to meet the requirements of the engine and avoid the abnormal wear and tear of the engine caused by impurities and large particle dust entering the engine combustion chamber. Another important function of the air intake system is to reduce noise. Intake noise not only affects the passing noise of the whole vehicle, but also affects the noise inside the vehicle, which has a great influence on the ride comfort. The design of intake system directly affects the power and noise quality of the engine, which is related to the ride comfort of the whole vehicle. The reasonable design of muffler components can reduce the noise of subsystem and improve the NVH performance of the whole vehicle.

Extended data:

Working principle of air intake system

When the engine is working, the driver controls the opening of the accelerator through the accelerator pedal, thus changing the air intake and controlling the operation of the engine. After the air entering the engine is filtered by the air cleaner to remove impurities such as dust, it flows through the air flowmeter, enters the power room along the throttle passage, and is distributed to each cylinder through the intake manifold; When the engine is idling, some air bypasses the throttle and enters the cylinder through the additional air valve or idling control valve.

Baidu encyclopedia-air intake system

Baidu encyclopedia-engine