The oil filters on the market have two major shortcomings, and the new products make up for the shortcomings, so it is necessary to use the new product strong magnetic oil filter.

Disadvantage 1: It can only filter out 60% of impurities in the oil, and the filtration efficiency is low;

This is because the current oil filter relies on a single paper filter hole to intercept and filter out harmful impurities in the oil. The smaller the filter paper, the better the filtering effect, but the worse the oil passing capacity. In order to solve the contradiction that the smallest particles of impurities can be filtered out on the same filter paper micropores, a sufficient amount of engine oil can also be supplied to the engine through the micropores. The filter branch of the National Internal Combustion Engine Industry Association adopted the ISO4548 international standard test method for oil filter filtration efficiency. The test shows that even the best oil filter on the market can only be designed to filter out 60% of impurities in the oil. This is the maximum filtering value obtained after thousands of experiments. In actual use, there are still 40% of harmful impurities that cannot be effectively filtered by the paper filter. Among these 40% impurities, because ferromagnetic impurities are relatively small and hard, ferromagnetic impurities are mostly used, which will damage the engine. maximum.

Disadvantage 2: The filtration efficiency is zero under special conditions;

The existing oil filter is equipped with a bypass valve at the bottom of the paper filter element. This is designed to ensure that the oil is partially or completely blocked when the engine is cold-started with high oil viscosity or when the paper filter element is partially or completely blocked. Direct oil flow channel designed for smooth circulation back to the engine. When the oil opens the bypass valve under the pressure of the oil pump, the oil circulating back to the engine through the bypass valve will not only not be filtered by the paper filter element, but also the large particles of impurities that have been filtered out by the paper filter element. It rushes back to the engine through the bypass valve, causing uninterrupted secondary wear to the engine. Therefore, the oil filters used on the market basically play a filtering role under special conditions, so the filtration efficiency at this time is zero.

It can be seen from the above two shortcomings that the currently used oil filter cannot permanently filter the impurities larger or smaller than the pores of the paper filter element. It can only filter those that are equal to the pores of the paper filter element and are embedded in the paper. The impurities in the pores of the filter element play a permanent role in filtering, so the filtering efficiency is extremely low.

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