Forced centrifugal fine filter and engine of forced centrifugal fine filter

Abstract

The invention discloses a forced centrifugal fine filter and an engine of the forced centrifugal fine filter. A centrifugal separation plate is positioned in a fine filter cavity and is fixedly connected with a fine filter installing seat in the circumference direction, and a space allowing lubricating oil to flow is arranged between the outer edge of the centrifugal separation plate and the inner wall of the fine filter cavity. The formed centrifugal fine filter adopts the integral centrifugal separation plate structure, the problem of small centrifugal radius of an annular structure sheathed outside a crankshaft in the prior part is solved, the installation on the crankshaft is not needed, oil inlet holes and oil outlet holes do not need to be formed in the crankshaft, the integrality, the processing performance and the integral intensity of the crankshaft are ensured, and the whole separation plate has a larger centrifugal radius, so greater separation centrifugal force is generated during the rotation, and better centrifugal filtering capability is still realized under the low rotating speed conditions. When the forced centrifugal fine filter is arranged on the engine, a better centrifugal filtering effect is realized, in addition, the relatively small radial dimension is realized, the installation space is saved, the mounting, the dismounting and the cleaning are convenient, and the forced centrifugal fine filter is suitable for being used by the engine of portable vehicles of motorcycles and the like.

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, the casing of the centrifugal fine filter ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the casing of the centrifugal fine filter is generally located on the crankshaft, which is driven by means of splines, etc. The centrifugal guide part is also arranged on the crankshaft, and the centrifugal diameter is relatively small, otherwise the radial dimension will be greatly increased ; The above-mentioned structure causes the existing centrifugal fine filter to have poor purification effect under low-speed conditions, or even has no purification effect, which affects the friction pairs such as the crankshaft and cannot be lubricated well, and affects the service life of the parts; and the above-mentioned structure needs to be used in The surface of the crankshaft opens into and out of the oil hole of the centrifugal fine filter, the processing technology is relatively complicated, and it has a bad influence on the strength of the crankshaft

Images