Filter element structure with low circulation resistance

Abstract

The invention discloses a filter element structure with low circulation resistance. A filter element is mounted in an inner cavity of a filter shell; at least three bosses are processed on the outer circle of an upper end cover of the filter element and are matched with an inner hole of a filter element shell; on the end cover of the filter element, a framework and a filter layer are bonded with the upper end cover and a lower end cover by high-temperature glue; the filter layer comprises high-temperature glue, a filter screen, an outer lining net, filter paper and an inner lining net; the filter layer is provided, at the two ends, with 8mm-wide filter screens additionally arranged between the filter paper and the outer lining net; then, the outer lining net and the inner lining net are adhered to the upper and lower surfaces of the filter paper; the filter layer is folded and corrugated for moulding. The outer contour of each boss must be smaller than the inner hole of the filter shell. The effective circulation area between the upper end cover and the inner hole of the filter shell is not smaller than the area of an oil inlet of the filter. The effective circulation area betweenthe lower end cover and the inner hole of the filter shell is smaller than the area of the oil inlet of the filter. The circulation resistance of the filter element is effectively reduced, the servicelife of the filter element is prolonged, thus an aviation hydraulic system has a compact structure, the weight is reduced, and the system is optimized.

Description

technical field [0001] The invention relates to a low flow resistance structure of a glued filter core, which is especially suitable for use in equipment with small installation space and low flow resistance requirements. Background technique [0002] In order to ensure the structural integrity of the glued filter element, the existing glued filter element is generally glued directly to the end cover after the filter layer is folded. This structure is relatively simple in process and good in operability, but the installation space is small and the flow resistance is low. It is difficult to meet the use requirements in the required occasions. For this reason, there is an urgent need for a delicate and reliable filter element to replace the existing structure. Contents of the invention [0003] The technical problem to be solved in the present invention is to design a filter element structure with low flow resistance, which can effectively increase the service life of the f...

AI Technical Summary

Problems solved by technology

[0002] In order to ensure the structural integrity of the glued filter element, the existing glued filter element is generally glued directly to the end cover after the filter layer is folded. This structure is relatively simple in process and good in operability, but the installation space is small and the flow resistance is low. It is difficult to meet the requirements of the occasion

Images