What is the purpose of an air filter?

[DeHarley]

The function of an air filter: To filter out particulate impurities in the air, ensuring that a sufficient amount of clean air enters the cylinders, and preventing floating dust in the air from being sucked into the engine, which can accelerate the wear of piston assemblies and cylinders. According to the car's maintenance manual, the air filter should generally be replaced every 10,000 to 20,000 kilometers or during every other maintenance interval. However, it is recommended to clean the air filter every 5,000 kilometers to reduce the buildup of throttle sludge. The location of the car's air filter element is determined by the intake form and the engine's structure. It is usually located in the air cleaner on the engine's intake pipe. There are two types of air filters in cars: dry and wet. Dry filters are made of paper or organic materials, while wet filters are made of metal mesh. Air filter: It is a type of filter, also known as an air filter cartridge, air cleaner, or air element. It is mainly used in engineering vehicles, cars, agricultural vehicles, laboratories, sterile operating rooms, and various precision operating rooms as an air filter. During operation, the engine sucks in a large amount of air. If the air is not filtered, the suspended dust in the air will be drawn into the cylinders, accelerating the wear of piston assemblies and cylinders. Larger particles entering between the pistons and cylinders can cause severe cylinder scoring, especially in dry and sandy working environments. The air cleaner is installed in front of the carburetor or intake pipe to filter out dust and sand particles from the air, ensuring that sufficient and clean air enters the cylinders. Using an excessively dirty air filter while driving can cause insufficient engine intake, leading to incomplete fuel combustion, unstable engine operation, reduced power, and increased fuel consumption. Therefore, it is essential to keep the air filter clean. The car's air cleaner is a device that removes particulate impurities from the air, consisting of one or several components that clean the air. Its main function is to filter out harmful impurities from the air before it enters the cylinders, reducing early wear of the cylinders, pistons, piston rings, valves, and valve seats. Therefore, before air enters the cylinders, it must pass through the fine filtration of the air cleaner. An excessively dirty air cleaner can cause poor engine performance, excessive fuel consumption, and engine damage. When inspecting the air cleaner, if it is found to have minimal dust and light blockage, it can be cleaned by blowing compressed air from the inside out and reused. An overly dirty air filter should be replaced promptly.