The working principle of the air filter

Release time:

Dec 06,2023

The air filter is the gas mask of the engine. It can filter out most of the impurities in the air and provide clean air for the engine. Therefore, its role is very large. In daily use, it must be cleaned frequently and replaced in time., Make sure the engine sucks clean air.

The engine needs two raw materials to work: gasoline and air. Gasoline is purchased by us, added to the fuel tank of the car, filtered by the fuel supply system, and then sent to the combustion chamber of the engine to mix and burn with air. And the air does not need to be purchased, just take it directly. How does the air enter the engine? Do you still need to filter?

How does the air get into the engine?

When the engine is working, it is divided into four strokes, one of which is the intake stroke. During this stroke, the engine piston descends, forming a vacuum in the intake pipe, sucking air into the combustion chamber of the engine, mixing and burning with gasoline.

So, can the air around us directly feed the engine? The answer is no. We know that the engine is a very precise mechanical product, and the cleanliness of the raw materials is very strict. The air contains a certain amount of impurities, which will cause damage to the engine. Therefore, the air must be filtered before entering the engine. This device is an air filter, commonly known as an air filter element.

2. What is the function of the air filter?

The engine needs to inhale a large amount of air during operation. If the air is not filtered, the dust suspended in the air is sucked into the cylinder, which will accelerate the wear of the piston group and the cylinder, and larger particles will enter between the piston and the cylinder. It will cause serious "cylinder pulling" phenomenon, especially in dry and sandy working environment. The air filter is installed in front of the carburetor or intake pipe to filter dust and sand in the air to ensure that the air entering the cylinder is sufficient and clean.

Among the thousands of parts and components of a car, the air filter is a very inconspicuous component, because it is not directly related to the technical performance of the car, but in the actual use of the car, the air filter is (especially the engine) Has a great impact on the service life. On the one hand, if the air filter has no filtering effect, the engine will inhale a large amount of air containing dust and particles, causing serious wear and tear of the engine cylinder; on the other hand, if the air filter is not maintained for a long time during use, the filter element of the vacuum cleaner It will be filled with dust in the air, which will not only reduce the filtering capacity, but also hinder air circulation, causing the mixture to be too thick and the engine to work abnormally. Therefore, regular maintenance of air filters is essential.

Key words:

The importance of filtration efficiency to the engine

Identification method of air filter

The importance of filtration efficiency to the engine

Identification method of air filter

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