Centrifugal fine filter and its engine

Abstract

The invention discloses a centrifugal fine filter and its engine, comprising a fine filter mounting seat and a centrifugal separation plate mounted on the fine filter mounting seat, the front surface or / and rear surface of the centrifugal separation plate are opened for changing the oil circulation channel and increasing The groove or / and protrusion of the centrifugal force, the fine filter of the present invention ensures a larger centrifugal radius, thus generating a larger separation centrifugal force when rotating, and still has better centrifugal filtration capacity at a lower rotational speed. , to further increase the centrifugal force of the centrifugal filter through the centrifugal force of the groove or / and the raised blade; under the condition that the separation plate adapts to the internal structure of the fine filter, it is guaranteed to have sufficient lubricating oil circulation area, and has a large mandatory centrifugal force , can fully separate impurities due to centrifugal force, not only has better centrifugal filtration effect at low speed, but also makes the radial dimension relatively small, saving installation space.

Description

technical field [0001] The invention relates to an accessory part of an engine, in particular to a lubricating oil filtering device and an engine thereof. 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 the centrifugal force of the centrifugal guide part is used to purify the lubricating oil. 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] The centrifugal separation plate structure is a necessary part of the fine filter in the prior a...

AI Technical Summary

Problems solved by technology

[0003] The centrifugal separation plate structure is a necessary part of the fine filter in the prior art. Since it is a light plate structure, the space through which the lubricating oil flows has a certain axial dimension. For the lubricating oil, the active driving effect produced by the centrifugal separation plate is obvious Insufficient, resulting in more impurities without being affected by the centrifugal force and entering the friction pair with the lubricating oil, affecting the use of running parts; at the same time, due to the limited space occupied by the fine filter and the centrifugal separation plate occupying a certain space, although structurally It is suitable for other components in the fine filter (such as the oil inlet assembly), but it will still affect the circulation of lubricating oil; in fact, ensuring the lubricating oil flow channel in the fine filter cavity will make it impossible for the lubricating oil far away from the centrifugal separation plate to form large centrifugal force

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