Air filter housing-lower part-2.8T
The car air filter is an item that removes particulate impurities in the air in the car. The car air conditioning filter can effectively reduce pollutants from entering the car through the heating, ventilation and air conditioning system, and prevent the inhalation of harmful pollutants.
Car air filters can bring a cleaner interior environment to the car. Automobile air filter belongs to automobile supplies and consists of two parts: filter element and housing. Its main requirements are high filtration efficiency, low flow resistance, and continuous use for a long time without maintenance.
effect
The car air filter is mainly responsible for removing particulate impurities in the air. When the piston machine (internal combustion engine, reciprocating compressor, etc.) is working, if the inhaled air contains dust and other impurities, it will aggravate the wear of the parts, so an air filter must be installed. The air filter consists of two parts, the filter element and the housing. The main requirements of the air filter are high filtration efficiency, low flow resistance, and continuous use for a long time without maintenance.
Automobile engines are very precise parts, and even the smallest impurities can damage the engine. Therefore, before the air enters the cylinder, it must be finely filtered by the air filter before it can enter the cylinder. The air filter is the patron saint of the engine, and the condition of the air filter is related to the life of the engine. If a dirty air filter is used while the car is running, the intake air of the engine will be insufficient, resulting in incomplete combustion of fuel, resulting in unstable engine operation, decreased power, and increased fuel consumption. Therefore, the car must keep the air filter clean.
Classification
The engine has three types of filters: air, oil, and fuel, and the air conditioning filter in the car is generally called "four filters". They are respectively responsible for the filtration of media in the engine intake system, lubrication system, and combustion system cooling system.
A. The oil filter is located in the engine lubrication system. Its upstream is the oil pump, and its downstream is the various parts in the engine that need to be lubricated. Its function is to filter out harmful impurities in the engine oil from the oil pan, and supply the clean engine oil to the crankshaft, connecting rod, camshaft, supercharger, piston ring and other kinematic pairs to lubricate, cool and clean, thereby Extend the life of these components.
B. The fuel filter can be divided into carburetor and electric injection type. For gasoline engines using carburetor, the fuel filter is located on the inlet side of the fuel pump, and the working pressure is relatively small. Generally, nylon casing is used, and the electric injection type engine The fuel filter is located on the outlet side of the fuel pump, and has a high working pressure, usually with a metal casing.
C. The car air filter is located in the engine intake system, and it is an assembly composed of one or several filter components that clean the air. Its main function is to filter out harmful impurities in the air that will enter the cylinder, so as to reduce the early wear of the cylinder, piston, piston ring, valve and valve seat.
D. Car air conditioning filter is used to filter the air in the car compartment and the air circulation inside and outside the car compartment. Remove the air in the compartment or the dust, impurities, smoke odor, pollen, etc. in the air entering the compartment to ensure the health of passengers and remove the peculiar smell in the compartment. At the same time, the cabin filter also has the function of making the windshield difficult to atomize the role of
Replacement cycle
It is generally recommended that customers replace it every 15,000 kilometers. Vehicle air filters that often work in harsh environments should be replaced no more than 10,000 kilometers. (desert, construction site, etc.) The service life of the air filter is 30,000 kilometers for cars and 80,000 kilometers for commercial vehicles.
Filtration requirements for automotive cabin filters
1. High filtration precision: filter out all larger particles (>1- 2 um)
2. High filtration efficiency: reduce the number of particles passing through the filter.
3. Prevent early wear and tear of the engine. Prevent damage to the air flow meter!
4. Low differential pressure ensures the best air-fuel ratio for the engine. Reduce filtration loss.
5. Large filter area, high ash holding capacity and long service life. Reduce operating expenses.
6. Small installation space and compact structure.
7. The wet stiffness is high, which prevents the filter element from being sucked and collapsed, causing the filter element to be broken down.
8. Flame retardant
9. Reliable sealing performance
10. Good value for money
11. No metal structure. It is beneficial to environmental protection and can be reused. Good for storage.
