The role of oil filter

In order to reduce the frictional resistance between the relative moving parts in the engine and to reduce the wear of the parts, the oil is continuously delivered to the friction surfaces of the moving parts to form a lubricating film and be lubricated. The oil itself contains a certain amount of gum, impurities, moisture and additives.

In order to reduce the frictional resistance between the relative moving parts in the engine and to reduce the wear of the parts, the oil is continuously delivered to the friction surfaces of the moving parts to form a lubricating film and be lubricated. The oil itself contains a certain amount of gums, impurities, moisture and additives. At the same time, in the process of engine operation, the introduction of metal wear debris, the entry of debris in the air, and the generation of engine oil oxides, gradually increase the amount of debris in the engine oil. If the oil is not filtered and directly enters the lubricating oil road, it will bring the impurities contained in the oil into the friction surface of the moving pair, accelerating the wear of the parts and reducing the service life of the engine. The role of the oil filter is to filter out impurities, gums, and moisture in the oil, and deliver clean oil to each lubrication site.

Due to the high viscosity of the oil itself and the high content of impurities in the oil, in order to improve the filtration efficiency, the oil filter generally has three levels, namely oil filter, oil filter and oil filter. The filter is installed in the oil sump in front of the oil pump and is usually a metal strainer type. The primary oil filter is installed behind the oil pump and is connected in series with the main oil passage. There are several types of metal scraper, sawdust filter, and microporous filter paper. Microporous filter paper is now used. The oil fine filter is installed in parallel with the main oil passage after the oil pump, and there are mainly two kinds of filter paper filter and rotor type. Rotor oil filter adopts centrifugal filter without filter element, which effectively solves the contradiction between oil passing and filter efficiency.

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