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Car oil filter, also known as machine filter, is located in the engine lubrication system. The upstream of the machine filter is the oil pump, and the downstream is the parts that need to be lubricated in the engine. The machine filter from the oil filter factory filters out harmful impurities in the oil from the oil pan, and supplies the crankshaft, connecting rod, camshaft, supercharger, piston ring and other motion pairs with clean oil to provide lubrication, cooling, and cleaning, thereby extending the life of these parts.
The function of the machine filter is to filter out harmful impurities in the oil from the oil pan, and supply the crankshaft, connecting rod, camshaft, supercharger, piston ring and other motion pairs with clean oil to play the role of lubrication, cooling and cleaning, thereby extending the life of these parts.
According to the structure, the machine filter can be divided into replaceable type, spin-on type, and centrifugal type; according to the arrangement in the system, it can be divided into full flow type and split flow type. The car oil filter materials used in the machine filter include filter paper, felt, metal mesh, non-woven fabric.
Most engines use replaceable machine filters. The filter such as the fiat oil filter with this structure puts the filter element and other parts, such as springs and sealing rings, into a metal shell, and connects and fixes the shell filter element with a metal filter base through a pull rod. The advantage of the replaceable machine filter is that it has low cost of use and only requires regular maintenance and replacement of the filter element; the disadvantage is that there are too many sealing points, and the maintenance and replacement of the filter element may miss parts, which is easy to cause loopholes, and replacement is troublesome. Since its development, spin-on filters have gradually been approved and selected by national Automotive OEMs. The rotary filter is characterized by a check valve, a bypass valve and only one sealing point. It is replaced as a whole, which greatly improves the sealing performance and is easy to replace. The filter element material mostly adopts imported filter paper, so it has high filtration efficiency, small flow resistance and long service life.
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