Lubricating oil filter of diesel engine

Abstract

The utility model relates to the field of filters, in particular to a lubricating oil filter of a diesel engine. The device comprises a shell and an auxiliary filtering assembly, the shell is detachably provided with a top cover, a threaded cover, a check valve, an upper fixing cover, a filtering assembly, a lower fixing cover and a spring a in sequence from top to bottom, the filtering assembly is rotationally provided with a check assembly, and the lower fixing cover is in threaded connection with a mounting ring; the auxiliary filtering assembly is arranged on the mounting ring and comprises a bypass cylinder coaxially arranged on the mounting ring, a mounting cover arranged on the bypass cylinder, a plurality of mounting plates coaxially arranged on the peripheral surface of the bypass cylinder, and a plurality of connecting rods annularly arranged on the mounting plates; and a filter ring is arranged between every two adjacent mounting plates. According to the utility model, the engine oil is filtered by increasing the length of the bypass cylinder and coaxially arranging the plurality of filter rings on the bypass cylinder, so that the utilization rate of the internal space of the valve core is improved.

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