A filter and filter element assembly thereof

A filter and filter element technology, applied in fixed filter element filters, filtration separation, chemical instruments and methods, etc., can solve problems such as damage to parts

Active Publication Date: 2021-04-30
HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The purpose of the present invention is to provide a filter to solve the technical problem in the prior art that when the internal pressure of the system used in conjunction with the filter is too high, it will cause damage to the components in the system; it also provides an adjustable filter Filter element assembly for cavity pressure filter

Method used

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  • A filter and filter element assembly thereof
  • A filter and filter element assembly thereof
  • A filter and filter element assembly thereof

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Embodiment Construction

[0030] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0031] Specific embodiments of the filter of the present invention, such as Figure 1 to Figure 3 shown. Such as figure 1 As shown, the filter includes a housing 100, and the housing 100 is provided with a media inlet 11 and a media outlet 12. In this embodiment, the media inlet 11 and the media outlet 12 are arranged on the same side of the housing 100. Form return channels for liquid flow. A protective cover 200 is mounted on the medium inlet 11 and the medium outlet 12 . Of course, in other embodiments, the specific location of the medium inlet and the medium outlet can be selected according to the actual situation, for example, the medium inlet and / or the medium outlet can be arranged at one end of the housing. In the present invention, the two ports on the shell are the medium inlet and the medium outlet, and the medium inlet and the medium outl...

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Abstract

The invention relates to a filter and a filter element assembly thereof. The filter comprises a casing, the casing is provided with a medium inlet and a medium outlet for connecting with a system, the casing is sealed and assembled with a filter element assembly, and the filter element assembly includes A cylindrical filter element and a first end cover and a second end cover that cover both ends of the cylindrical filter element, the first end cover is provided with a working medium through hole that communicates with the inner cavity of the cylindrical filter element, and the second end cover is provided with A piston cavity connected with the inner cavity of the cylindrical filter element, the piston cavity is sealed and slidably fitted with a piston that is positively pushed by the working medium in the direction away from the first end cover when the inner cavity pressure of the cylindrical filter element is greater than the set value The side of the piston facing away from the cylindrical filter element and the second end cover form a closed air cavity, and / or an elastic member for applying a reverse force to the piston is arranged between the piston and the second end cover. By setting the piston, a certain amount of system pressure can be effectively shared, reducing the pressure on each component in the system.

Description

technical field [0001] The invention relates to a filter and its filter element assembly. Background technique [0002] Existing valve control systems usually include one-way valves, solenoid valves and other valves. A filter is connected to the valve control system. The filter filters the working medium (such as hydraulic oil or other liquids, etc.) entering the system. Normal use , the filter and the valve control system are in a state of constant communication. The filter usually includes a housing, on which there is a medium inlet and a medium outlet for supplying working fluid to the system, and a filter element assembly is installed in the housing, and the filter element assembly is mostly as shown in the Chinese utility model patent with the authorized announcement number CN204344323U , the Chinese utility model patent discloses a filter element assembly, the filter element assembly includes a cylindrical filter element and a first end cap and a second end cap that c...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D29/33B01D35/31
CPCB01D29/33B01D35/31
Inventor 胡飞强莫延亮李磊陈正立王珊珊国宁苑高辉刘来运陈凯苏征
Owner HENAN AEROSPACE HYDRAULIC & PNEUMATIC TECH
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