What are the car air filter element classification

The engine has air, oil, fuel three kinds of filters, the car has an air conditioning filter is generally called "four filter". They are respectively responsible for the engine intake system, lubrication system, combustion system cooling system of the medium filtration.

A. The oil filter is located in the engine lubrication system. Its upstream is the oil pump, the downstream is the engine to lubricate the parts. Its role is to filter out the harmful impurities in the oil from the oil pan, and supply the crankshaft, connecting rod, camshaft, supercharger, piston ring and other motion pair with clean oil. It plays the role of lubrication, cooling and cleaning, so as to prolong the life of these parts.

B. The fuel filter can be divided into carburetor and electric injection. For gasoline engines using carburetors, the fuel filter is located at the inlet side of the oil pump with small working pressure and generally adopts nylon shell. The fuel filter of the electric injection engine is located at the outlet side of the oil pump with high working pressure and usually adopts metal shell.

C, the automobile air filter is located in the engine intake system, it is composed of one or several clean air filter components assembly. 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 cylinder, piston, piston ring, valve and valve seat.

D. The automobile air conditioning filter is used to filter the air in the automobile compartment and the air circulation inside and outside the compartment. Remove the air in the compartment or into the compartment of the air in the dust, impurities, smoke odor, pollen, in order to ensure the health of passengers and remove the odor in the compartment, at the same time, the air conditioning filter also has the effect of making the windshield not easy to atomize.