The engine needs to suck in a lot of air during the working process. If the air is not filtered, the dust suspended in the air will be sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder. Larger particles entering between the piston and the cylinder can cause serious "pulling the cylinder", which is especially serious in dry and sandy working environments. The air filter is installed in front of the throttle valve, which plays the role of filtering out dust and sand in the air, and ensures that sufficient and clean air enters the cylinder. Therefore, the air filter is like the gas mask of the engine, which isolates the substances that are harmful to the engine and allows the engine to breathe cleaner.
During the use of the car, the air filter has a great influence on the service life of the engine. On the one hand, if there is no filtering effect of the air filter, the engine will inhale a large amount of air containing dust and particles, resulting in serious wear of the engine cylinder; on the other hand, if the air filter is not maintained for a long time during use, the air filter The filter element of the filter will be full of dust in the air, which not only reduces the filtering ability, but also hinders the circulation of the air, resulting in too rich mixture and the engine does not work properly. Therefore, regular maintenance of the air filter is crucial.
There are generally three types of air filters: inertial type, filter type and oil bath type. Most cars use the filter type, and large trucks generally use the inertia type. If the operating conditions are particularly bad, the oil bath type is used.
There is no clear replacement cycle for the replacement of the air filter. Generally, it is blown every 5,000 kilometers and replaced every 10,000 kilometers. But it depends on the specific use environment. If the environment is very dusty, the replacement time should be shortened. If the environment is good, the replacement cycle can be appropriately extended.
