Oil filter for engine

Abstract

The present invention provides an oil filter for an engine. The oil filter comprises a housing, a bottom plate, a first filter member, a second filter member and a bypass valve. A diaphragm plate is arranged inside the housing and divides the inside of the housing into a first filter cavity and a second filter cavity, the first filter member is arranged inside the first filter cavity, a metal impurity adsorbing material and a first filter paper are arranged between a first barrel body and a second barrel body of the first filter member, the second filter member is arranged inside the second filter cavity, an entrance of the bypass valve is communicated with a second working cavity, and an exit of the bypass valve is communicated with the inner cavity of a third barrel body. According to the oil filter provided by the invention, large-grain metal impurities in the oil are first filtered out by the metal impurity adsorbing material, so as to reduce filtering pressure of the first filter paper and a second filter paper, prolonging a service cycle of the first filter member and the second filter member, and raising the filter effect of the first filter member and the second filter member. And when the metal impurities adsorbed by the metal impurity adsorbing material reach a certain amount, a user only needs to directly replace the metal impurity adsorbing material.

Description

technical field [0001] The invention relates to the technical field of filters, in particular to an engine oil filter. Background technique [0002] After the engine has been working for a long time, a large amount of iron filings and other abrasives will be produced, and these abrasives will enter the engine oil. Therefore, this part of the recycled engine oil must be filtered so that the recycled engine oil after removing impurities can be reused. At present, the engine oil used in automobile engines is generally filtered through a filter. Its function is to remove impurities such as dust, carbon deposits and soot particles in the engine oil, especially metal particles such as iron filings, so as to ensure that clean engine oil is supplied to the crankshaft, Connecting rods, camshafts, superchargers, piston rings and other moving pairs enable the oil to lubricate, cool, and clean, thereby prolonging the life of these parts. Therefore, the performance of the oil filter dir...

AI Technical Summary

Problems solved by technology

The filter element of the existing oil filter is generally a filter screen. When filtering the oil, the oil is passed into the filter screen, and the impurities are left on the bottom surface of the filter screen. During the filtering process, only the bottom surface of the filter screen Filter the engine oil, the filter area is small, the bottom of the filter screen will act for a long time, the filter residue is not easy to remove, it is easy to block, and it is difficult to maintain

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