What is the main role of the car air filter shell?
The main role of the automobile air filter housing is to protect the air filter and ensure the intake quality of the engine.
Automotive air filter housing, also known as the air filter housing, is an important part of the automotive engine intake system. Its main functions include:
Protective air filter : The housing can protect the internal air filter, prevent dust, impurities and other external pollutants directly contact the filter, thereby extending the service life of the filter.
Ensure air intake quality : By keeping the filter clean and intact, the housing ensures that the air entering the engine is filtered, to avoid dust and impurities into the engine, to ensure the normal operation of the engine and extend the service life of the engine.
In addition, different types of automotive air filter housing have different specific functions, such as:
air filter housing : located at the air intake of the engine, used to filter the air entering the engine to prevent dust and impurities from entering.
oil filter housing : located at the bottom of the engine for the storage and output of oil.
Fuel filter housing : located at the fuel inlet of the engine, used to filter impurities from the fuel.
spark plug cover : Part of the ignition system in the engine to protect the spark plug and other ignition equipment.
coolant cap : located in the cooling system part of the engine to maintain the coolant level.
belt cover : located in the drive system part of the engine to protect the lubrication and protection of the belt.
These plastic covers may be deformed or aged by heat during engine operation, so they need to be checked and replaced regularly to ensure the normal operation of the engine and the safety of the car .
Structure classification and working principle of air filter?
Air filter is an important part of the automobile engine, its role is to filter the dust and impurities in the air, to protect the normal operation of the engine. According to the working principle, the air filter can be divided into inertia type, filter type and compound type; According to the structure, it can be divided into dry type and wet type. Generally speaking, the air filter is composed of an intake duct, an air filter cover, an air filter shell and a filter element.
The inertial air filter mainly uses the suction generated by the cylinder in the intake, so that the external air enters the air filter at a higher speed under the action of pressure, and the larger dust mixed in the air is thrown to the dust collection cup, so as to complete the air filtration. The advantages of this filter are simple structure, low cost and easy maintenance, but the disadvantage is that the filter element is easy to be blocked, affecting the engine performance.
Filter type air filter is mainly composed of paper filter element and sealing gasket, the air enters the filter through the paper filter, so that the dust in the air is separated by the filter element or adhered to the filter element. The advantage of this filter is that the filtration effect is good, but the disadvantage is that the cost is high, and the filter element needs to be replaced regularly.
The composite air filter combines the advantages of inertia and filter air filters, which can filter both large particles and small particles, and the filtration effect is better. However, the disadvantage is that the cost is high and the maintenance cost is relatively high.
The filter element of dry air filter is mainly composed of paper filter screen and sealing gasket, etc., which has the advantages of simple structure, low cost and easy maintenance, but the disadvantage is that the filtration effect is not as good as that of wet air filter. The filter element of the wet air filter needs to be cleaned or replaced frequently, and the cost is higher.
The filter screen of the air filter is mainly divided into particulate matter filter screen and organic matter filter screen, of which particulate matter filter screen is divided into coarse effect filter screen and fine particulate matter filter screen, each kind of filter screen is mainly for the pollution source is not the same, the principle of filtration is not the same. Therefore, when selecting an air filter, it is necessary to select the appropriate filter type according to the vehicle use environment and use.
In short, the air filter is an indispensable part of the car engine, its role is to protect the engine from dust and impurities, to ensure the normal operation of the engine. Different types of air filters have advantages and disadvantages, and it is necessary to choose the right type of filter according to the actual situation.
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