What is the Principle of an Automotive Oil Filter?

1 Answers
VonCamilla
07/30/25 6:02am
The principle of an automotive oil filter is: During engine operation, as the oil pump operates, oil containing impurities enters the oil filter through the inlet on the oil filter base plate assembly. It then passes through a check valve to the outer side of the filter paper, awaiting filtration. Under the pressure of the oil, the oil continuously passes through the filter paper into the central tube, while impurities in the oil remain on the filter paper. The oil filter consists of filter paper and a housing, and it is categorized into coarse oil filters and fine oil filters. The oil filter is located in the engine lubrication system, and its functions are: 1. To filter out harmful impurities from the oil; 2. To extend the service life of various components.
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