Spiral gasoline filter

Abstract

The invention relates to the field of automotive filter equipment, in particular to a spiral gasoline filter, which comprises a shell, a seal cover, and a filter element, wherein a drain valve is arranged at the bottom of the shell, an oil inlet pipe and an oil outlet pipe are arranged on the seal cover, the filter element is composed of an upper end cover, a lower end cover and hollow cylindrical filter paper which is arranged between the upper end cover and the lower end cover and is formed through longitudinal folding, and the two annular end faces of the filter paper are respectively and fixedly bonded with the upper end cover and the lower end cover. The spiral gasoline filter is characterized in that the upper end cover is further provided with an oil outlet channel which is communicated with the oil outlet pipe, the center of the filter paper is further provided with a filter element shaft, and a spiral runner is arranged on the whole body of the filter element shaft and is communicated with the oil outlet channel. According to the invention, the spiral runner is skillfully arranged on the outer wall of the filter element, so that the filter can be used for filtering is an eddy flow manner, the filtering effect is greatly enhanced, and the advantages of simple structure and low cost are achieved; in addition, a silencing block and an air bleed valve are additionally arranged in the filter, so that the integral usability of the filter is increased.

Description

【Technical field】 [0001] The invention relates to the field of automobile filter equipment, in particular to a spiral gasoline filter. 【Background technique】 [0002] The function of the spiral gasoline filter is to filter out the moisture and impurities in the gasoline. When the engine is working, the gasoline enters the sedimentation cup of the filter through the oil inlet pipe under the action of the gasoline pump. When the oil becomes smaller, the water and impurity particles heavier than the oil will settle at the bottom of the cup, the light impurities will flow to the filter element with the gasoline, and the clean gasoline will seep into the filter element through the micropores of the filter element, and then flow out through the oil pipe. [0003] At present, most of the filter papers used in spiral gasoline filters are filter papers that can only filter solid impurities. Although this kind of gasoline filter paper filters solid impurities, it is powerless to separ...

AI Technical Summary

Problems solved by technology

[0004] 1. Make the precision coupling parts of the engine power supply system in a semi-dry friction state, causing strong wear of the precision coupling parts

[0005] 2. Cause the corrosion of the fine coupling parts of the oil supply system and the engine cylinder

[0006] 3. Dissolve certain mechanical impurities, such as salts. After the salt is dissolved, it is not easy to be filtered out by the filter, which will cause corrosion of the precision coupling parts and cylinders of the oil supply system.

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