Centrifugal fine filter forcing impurities to separate and engine thereof

Abstract

The invention discloses a centrifugal fine filter forcing impurities to separate and an engine of the centrifugal fine filter. The centrifugal fine filter comprises a fine filter installing base and a sealing cover, wherein the fine filter installing base is installed at the end of a crank shaft and fixedly matched with the crank shaft in the circumferential direction, and the sealing cover is used for forming a fine filter cavity together with the fine filter installing base. Bosses inward in the radial direction are formed on the inner wall of the fine filter installing base, and impurity storing spaces are formed between the adjacent bosses. All the advantages of an existing fine filter are kept; as the bosses inward in the radial direction are distributed at the front end of the fine filter installing base, and impurity storing spaces are formed between the adjacent bosses, the impurities enter the spaces under large centrifugal force instead of moving in the circumferential direction, are in a relatively static and deposit state and therefore will not cause secondary contamination on an oil product, lubricating oil and the impurities are prevented from gathering again in the separating and purifying processes to achieve a better forcing separating effect, and the separating effect is not affected worse along with the prolonging of the use period.

Description

technical field [0001] The invention relates to an accessory part of an engine and its engine, in particular to a lubricating oil filtering device and its engine. Background technique [0002] The centrifugal fine filter is an important equipment for the engine to purify the lubricating oil and ensure the normal operation of each friction pair. The centrifugal fine filter is generally driven by the rotation of the crankshaft and uses the centrifugal force of the centrifugal guide part to purify the lubricating oil, and the effect is more obvious. The centrifugal fine filter generally includes a shell and a centrifugal guide part located in the shell. After the lubricating oil enters the shell, it flows along the centrifugal guide part through centrifugal force. The solid particles with high density are located at the farthest end of the centrifugal diameter, near the center That is clean lubricating oil. [0003] In the prior art, in order to ensure a good separation and p...

AI Technical Summary

Problems solved by technology

However, this structure is used to pass the passage of lubricating oil in the gap formed between the edge of the centrifugal separation plate and the housing, and according to the filtering principle of the fine filter, impurities will also accumulate on the edge through the action of centrifugal force, making the lubricating oil and impurities After separation, it will be blocked and converged, and the separation will continue in the secondary centrifugation (the inner surface of the centrifugal separation plate), and the impurities will accumulate and gather endlessly, resulting in the gradual deterioration of the separation and purification effect with the prolongation of the service life

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