Oil filter capable of controlling pressure fluctuation

A technology of pressure pulsation and oil filtration, applied in fluid pressure actuation devices, fluid pressure actuation system components, mechanical equipment, etc., can solve problems such as reduction of natural frequency of pipelines, fretting wear on the surface of supporting structures, fluid-solid coupling vibration, etc. , to suppress pressure pulsation, maintain cleanliness, and improve reliability

Active Publication Date: 2015-05-27
COMAC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The flow pulsation is transformed into pressure pulsation through the impedance of the fluid pipeline, and the pressure pulsation directly acts on the pipe wall of the solid pipe in the form of pulsating stress, which makes the pulsating stress not only directly cause the rupture of the pipe wall, but also directly cause the pipe support structure The destruction of the structure, especially the fretting wear on the surface of the supporting structure, causes the stiffness of the support to decrease, resulting in a decrease in the natural frequency of the pipeline, fluid-solid coupling vibration, and finally leads to the failure of the pipeline system

Method used

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  • Oil filter capable of controlling pressure fluctuation
  • Oil filter capable of controlling pressure fluctuation
  • Oil filter capable of controlling pressure fluctuation

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Embodiment Construction

[0020] Such as figure 1 As shown, the oil filter for suppressing pressure pulsation is formed by fitting the filter cartridge 8 on the base 2 .

[0021] Such as Figure 2-4 As shown, the lower part of the base 2 is a square plate 21 with a ring-shaped boss and an internal thread on the upper side of the boss. Such as image 3 As shown, a through hole 22 is respectively opened at the four corners of the square support plate 21, and there are threads on the top of the through hole 22, so that the oil filter of the present invention can be installed on other components to facilitate the use of the oil filter of the present invention.

[0022] Such as image 3 As shown, an oil filter inlet 23 is opened outside the center gradient of the square support plate 21 , and an oil filter outlet 24 is opened at the center of the square support plate 21 . Such as Figure 4 As shown, a first sealing ring 3 is installed on the lower inner side of the outlet 24, and the upper side of the ...

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Abstract

The invention discloses an oil filter capable of controlling pressure fluctuation. The oil filter comprises a base, a filter core mounting sleeve, a filter core and a filter cartridge, wherein the filter core mounting sleeve and the filter cartridge are arranged on the base; the filter core is sleeved on the filter core mounting sleeve; and the filter cartridge is sleeved on the filter core and is used for tightly compressing the filter core. The oil filter is characterized in that: a certain gap is formed between the filter core and the filter cartridge; a copper wire is filled in the gap; and oil which flows into the oil filter flows through the copper wire and the filter core and then flows out of the oil filter. The oil filter capable of controlling the pressure fluctuation can eliminate pollutants in the oil, keep the cleanness of the oil and effectively control the pressure fluctuation, so that the reliability of the whole hydraulic system is improved; in addition, the oil filter has a simple structure, is convenient to machine and is easy to realize.

Description

technical field [0001] The invention relates to an oil filter device in an airborne hydraulic system, in particular to an oil filter capable of suppressing pressure pulsation. Background technique [0002] The onboard hydraulic system is a key subsystem of the aircraft. The system converts mechanical energy into fluid pressure energy through the hydraulic pump, and transmits it to each functional subsystem through the working fluid to complete the predetermined task. Onboard hydraulic systems have a major impact on aircraft safety. According to relevant information, about 50% of aircraft accidents are caused by hydraulic system failures, so how to improve the reliability of hydraulic systems is an urgent problem to be solved. [0003] Oil filter is an important component in the hydraulic system, it can remove the pollutants in the hydraulic oil, maintain the cleanliness of the oil, and ensure the reliability of the system components. By installing the oil filter in the app...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B21/04
Inventor 陆清曹丹青张建波付永领朴学奎齐海涛
Owner COMAC
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