Aviation lubricating oil supply device

By using a non-magnetic material outer tube in the aviation lubricating oil supply device to adsorb ferromagnetic particles, and then pulling the strong magnet out of the outer tube during cleaning, the problem of difficult-to-clean strong magnets is solved, thus improving the cleaning efficiency and effectiveness of the device.

CN224094239UActive Publication Date: 2026-04-07CIVIL AVIATION FLIGHT UNIV OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-13
Publication Date
2026-04-07

AI Technical Summary

Technical Problem

In existing aviation lubricating oil supply devices, strong magnets attract ferromagnetic particles, which are difficult to clean quickly, affecting the performance.

Method used

The outer tube is made of non-magnetic material, and a strong magnet is placed inside the outer tube. Ferromagnetic particles are attracted to the outer tube. During cleaning, the mounting plate is removed and the strong magnet is taken out. Water flow or wind power is used to clean the ferromagnetic particles on the outer tube.

Benefits of technology

This technology enables rapid cleaning of ferromagnetic particles from the outer tube, improving the effectiveness and efficiency of the device.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an aviation lubricating oil supply device, and belongs to the technical field of lubricating oil supply. An aviation lubricating oil supply device comprises a filter box and further comprises a mounting plate detachably arranged on the filter box, outer pipes distributed in an array mode are detachably arranged at the bottom of the mounting plate, a connecting plate is detachably arranged at the top of the mounting plate, a positioning column is arranged in the connecting plate, and a strong magnet of a rotary body columnar structure is fixedly arranged at the bottom of the positioning column. The outer wall of the strong magnet abuts against the inner wall of the outer pipe. The outer pipe made of the non-magnetic material is arranged on the mounting plate, the strong magnet is arranged in the outer pipe, ferromagnetic particles in lubricating oil can be adsorbed on the outer pipe, during cleaning, after the mounting plate is detached from the filter box, the strong magnet is pulled out of the outer pipe through the connecting plate, at the moment, the outer pipe loses magnetism, and the ferromagnetic particles in the lubricating oil can be cleaned. Under cleaning of water flow or wind power, ferromagnetic particles on the outer wall of the outer pipe can be quickly cleaned, and the using effect is improved.
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Description

Technical Field

[0001] This utility model relates to the field of lubricating oil supply technology, and in particular to an aviation lubricating oil supply device. Background Technology

[0002] The aviation lubricating oil supply system is the core component of the aircraft engine lubrication system. It is responsible for continuously and stably supplying lubricating oil to friction components such as engine bearings and gears during flight to reduce wear, dissipate heat, and prevent corrosion.

[0003] An aviation lubricating oil supply system consists of multiple components. These components include an oil tank, oil pump, filter, oil cooler, regulating valve, piping, and sensors. The oil tank stores the lubricating oil; the oil pump pumps the lubricating oil from the tank to various parts of the engine; the filter's main function is to remove impurities from the lubricating oil, ensuring its purity, and includes outlet and return filters for the oil tank; the oil cooler lowers the temperature of the lubricating oil to protect the engine; the regulating valve controls the flow rate of the lubricating oil; the piping connects the various components; and the sensors monitor parameters such as the flow rate and pressure of the lubricating oil. These components work together to ensure the lubrication and cooling of the engine and its smooth operation.

[0004] Currently, moving parts inside the engine, such as gears, shafts, and bearings, experience wear during use, resulting in ferromagnetic particles, such as metal shavings, being present in the lubricating oil. Therefore, strong magnets are often used in filters to magnetically attract these ferromagnetic particles from the lubricating oil, requiring only periodic cleaning of the metal shavings on the magnet's surface, eliminating the need for frequent filter replacements. However, when cleaning the ferromagnetic particles from the strong magnet, the constant magnetism makes it difficult to quickly and thoroughly remove the particles, affecting the filter's performance. Utility Model Content

[0005] The purpose of this invention is to solve the problem in the prior art of using strong magnets to attract ferromagnetic particles in lubricating oil, where the strong magnets always have magnetism, making it inconvenient to quickly clean the ferromagnetic particles afterward. Therefore, this invention proposes an aviation lubricating oil supply device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An aviation lubricating oil supply device includes a filter box with a filter element disposed thereon, and a mounting plate detachably disposed on the filter box. The filter element is mounted on the bottom of the mounting plate. An array of outer tubes is detachably disposed on the bottom of the mounting plate. The outer tubes are made of a non-magnetic material. A connecting plate is detachably disposed on the top of the mounting plate. A positioning post is disposed within the connecting plate. A strong magnet with a rotating columnar structure is fixedly disposed at the bottom of the positioning post. The strong magnet extends into the outer tubes, and its outer wall abuts against the inner wall of the outer tubes. The outer tubes are located in front of the filter element in the direction of liquid flow.

[0008] To facilitate the installation of the positioning post, preferably, the mounting plate has a first positioning hole, the bottom of the connecting plate has a second positioning hole corresponding to the first positioning hole, the two ends of the positioning post are slidably disposed in the first positioning hole and the second positioning hole respectively, and the connecting plate has a through hole communicating with the second positioning hole, a bolt is disposed in the through hole, and the bolt extends to one end of the second positioning hole and is threadedly connected to the positioning post.

[0009] To improve the performance of the outer tube, it is preferable that the outer tube is made of plastic.

[0010] To facilitate the installation of the connecting plate, preferably, the top of the mounting plate is provided with a mounting groove, the connecting plate is slidably disposed in the mounting groove, and a second handle is fixedly provided at the top of both ends of the connecting plate.

[0011] Furthermore, a groove is formed in the inner wall of the mounting slot, and an elastic retaining plate is fixedly provided on one side of the outer wall of the connecting plate, with the end of the elastic retaining plate away from the connecting plate engaging with the groove.

[0012] Preferably, an oil inlet pipe and an oil outlet pipe are fixedly installed at both ends of the filter box, and a first baffle and a second baffle are fixedly installed inside the filter box. The first baffle and the second baffle are located near the outlet of the oil inlet pipe, and two sets of the second baffle are symmetrically arranged. The two sets of second baffles are located at the top and bottom of the first baffle, respectively, and the second baffle is provided with mesh holes.

[0013] Compared with the prior art, the present invention provides an aviation lubricating oil supply device, which has the following beneficial effects:

[0014] 1. This aviation lubricating oil supply device, by setting a non-magnetic outer tube on the mounting plate and placing a strong magnet inside the outer tube, can attract ferromagnetic particles in the lubricating oil onto the outer tube. During cleaning, after removing the mounting plate from the filter box, the strong magnet is pulled out from the outer tube through the connecting plate. At this time, the outer tube loses its magnetism, and under the cleaning of water flow or wind, the ferromagnetic particles on the outer wall of the outer tube can be quickly cleaned, improving the performance.

[0015] 2. This aviation lubricating oil supply device has a first baffle and a second baffle fixedly installed on the filter box. When the lubricating oil enters the filter box from the oil inlet pipe, it will first hit the first baffle, and then flow from the gap between the two sets of second baffles and the mesh to the outer tube and filter element. This can disperse the lubricating oil and avoid constantly impacting one place of the outer tube and filter element, thus improving the performance.

[0016] The parts of this device not described herein are the same as or can be implemented using existing technologies. This utility model sets a non-magnetic outer tube on the mounting plate and places a strong magnet inside the outer tube. This allows ferromagnetic particles in the lubricating oil to be adsorbed onto the outer tube. During cleaning, the mounting plate is removed from the filter box, and then the strong magnet is pulled out from the outer tube via the connecting plate. At this time, the outer tube loses its magnetism, and the ferromagnetic particles on the outer wall of the outer tube can be quickly cleaned by water flow or wind, thus improving the performance. Attached Figure Description

[0017] Figure 1 This utility model provides a schematic diagram of the structure of an aviation lubricating oil supply device. Figure 1 ;

[0018] Figure 2 This is a cross-sectional view of an aviation lubricating oil supply device proposed in this utility model;

[0019] Figure 3 This utility model proposes an aviation lubricating oil supply device. Figure 2 Enlarged view of section A;

[0020] Figure 4 This is a schematic diagram of the structure of the outer tube array of an aviation lubricating oil supply device proposed in this utility model.

[0021] In the diagram: 1. Filter box; 101. Oil inlet pipe; 102. Oil outlet pipe; 103. First baffle; 104. Second baffle; 2. Mounting plate; 201. Mounting groove; 202. First positioning hole; 3. Filter element; 4. Outer pipe; 5. Strong magnet; 501. Positioning post; 6. Connecting plate; 601. Second positioning hole; 602. Elastic retaining plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0024] Example:

[0025] Reference Figures 1-4An aviation lubricating oil supply device includes a filter box 1. An oil inlet pipe 101 and an oil outlet pipe 102 are fixedly installed at both ends of the filter box 1. Preferably, the filter box 1 is located at the return oil pipe of the lubricating oil tank, meaning the oil outlet pipe 102 is connected to the return oil port of the lubricating oil tank. Used lubricating oil enters the filter box 1 through the oil inlet pipe 101 for filtration, and then flows back to the lubricating oil tank through the oil outlet pipe 102, achieving lubricating oil circulation and improving performance. A filter element 3 is installed on the filter box 1. The filter element 3 can be a paper filter element 3, a glass fiber filter element 3, or a stainless steel mesh. Preferably, a glass fiber filter element 3 is preferred due to its high filtration efficiency and long service life. The device also includes a disassembly and installation mechanism installed on the filter box 1. Plate 2: Here, a stepped window is provided on the top of the filter box 1. The mounting plate 2 is bolted to the window. A first handle is fixed on the top of the mounting plate 2 for easy installation and removal. A first sealing gasket is provided at the step to improve the sealing effect between the mounting plate 2 and the window, reducing lubricating oil leakage. The filter element 3 is installed at the bottom of the mounting plate 2. Here, we prefer to bolt the outer shell of the filter element 3 to the end of the mounting plate 2 that extends into the window. This makes installation and removal convenient, secure, and facilitates replacement or cleaning of the filter element 3, improving its performance. At the bottom of the mounting plate 2, an array of outer tubes 4 are disassembled. The outer tubes 4 are made of non-magnetic material, such as aluminum alloy, copper, plastic, or glass. The outer tube 4 is preferably made of polyimide plastic, which not only has extremely high heat resistance and oxidation resistance, but also excellent mechanical properties. The wall thickness of the outer tube 4 is 2mm-10mm, preferably 3mm, which ensures its own strength while reducing the weakening of the magnetism. The outer tube 4 has a rotating tubular structure, open at one end and closed at the other. A flange plate is fixedly installed at the open end and bolted to the top of the mounting plate 2. A sealing ring is provided at the connection between the flange plate and the mounting plate 2 to improve the sealing effect. The outer tube 4 can be arranged in a rectangular or circular array; here, we prefer a rectangular array. The outer tube 4 is arranged in three rows along the liquid flow direction, with adjacent rows alternating, which helps to improve the resistance to the ferromagnetism of the lubricating oil. Despite the adsorption effect of particles, the magnet can still effectively attract ferromagnetic materials through these materials. A connecting plate 6 is detachably installed on the top of the mounting plate 2. A positioning post 501 is installed inside the connecting plate 6. A strong magnet 5 with a rotating columnar structure is fixed at the bottom of the positioning post 501. The strong magnet 5 extends into the outer tube 4, and the outer wall of the strong magnet 5 abuts against the inner wall of the outer tube 4. Multiple positioning posts 501 can be raised and lowered simultaneously through the connecting plate 6, which makes it convenient to install the strong magnet 5 in the outer tube 4 or pull it out of the outer tube 4. The outer tube 4 is located in front of the filter element 3 in the direction of liquid flow. That is to say, before the filter element 3 filters, the strong magnet 5 can magnetically adsorb ferromagnetic particles in the lubricating oil, reduce the accumulation of ferromagnetic particles on the filter element 3, and improve the performance.

[0026] In use, by setting a non-magnetic outer tube 4 on the mounting plate 2 and placing a strong magnet 5 inside the outer tube 4, the ferromagnetic particles in the lubricating oil can be attracted to the outer tube 4. During cleaning, after removing the mounting plate 2 from the filter box 1, the strong magnet 5 is pulled out from the outer tube 4 through the connecting plate 6. At this time, the outer tube 4 loses its magnetism, and the ferromagnetic particles on the outer wall of the outer tube 4 can be quickly cleaned by water flow or wind, thus improving the performance.

[0027] Reference Figure 3 A first positioning hole 202 is provided on the mounting plate 2, and a second positioning hole 601 corresponding to the first positioning hole 202 is provided on the bottom of the connecting plate 6. The two ends of the positioning post 501 are slidably set in the first positioning hole 202 and the second positioning hole 601 respectively. A through hole connected to the second positioning hole 601 is provided on the connecting plate 6. A bolt is provided in the through hole, and the bolt extends to one end of the second positioning hole 601 and is threadedly connected to the positioning post 501. In use, by fixing the positioning post 501 to the connecting plate 6 with bolts, it is not only convenient to install and remove the positioning post 501, but also allows the strong magnet 5 to be pulled out from the outer tube 4 through the positioning post 501 when the connecting plate 6 is pulled upward. The first positioning hole 202 and the second positioning hole 601 can ensure the accurate positioning of the positioning post 501 and the strong magnet 5, thereby improving the use effect.

[0028] Reference Figures 1-3 A mounting groove 201 is provided on the top of the mounting plate 2. The connecting plate 6 is slidably placed in the mounting groove 201. Second handles are fixedly provided on the top of both ends of the connecting plate 6. A groove is provided on the inner wall of the mounting groove 201. An elastic retaining plate 602 is fixedly provided on the outer wall of one side of the connecting plate 6. The end of the elastic retaining plate 602 away from the connecting plate 6 is engaged with the groove. When disassembling, the elastic retaining plate 602 is pressed towards the connecting plate 6 to disengage it from the groove. At this time, the connecting plate 6 can be removed from the mounting groove 201. In use, the connecting plate 6 is disassembled and connected to the mounting groove 201 by using the elastic retaining plate 602. The assembly and disassembly are convenient and the fixation is reliable. It is easy to remove the connecting plate 6 from the mounting plate 2, which improves the use effect.

[0029] Reference Figure 2A first baffle 103 and a second baffle 104 are fixedly installed inside the filter box 1. The first baffle 103 and the second baffle 104 are located near the outlet of the oil inlet pipe 101. The first baffle 103 is positioned between the second baffle 104 and the outlet of the oil inlet pipe 101. Two sets of second baffles 104 are symmetrically arranged, with the two sets of second baffles 104 located at the top and bottom of the first baffle 103, respectively. The second baffles 104 are provided with mesh holes. In use, by fixing the first baffle 103 and the second baffle 104 on the filter box 1, when the lubricating oil enters the filter box 1 from the oil inlet pipe 101, it will first hit the first baffle 103, and then flow from the gap between the two sets of second baffles 104 and the mesh holes towards the outer pipe 4 and the filter element 3. This can disperse the lubricating oil and prevent it from constantly impacting one place on the outer pipe 4 and the filter element 3, thereby improving the performance.

[0030] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An aviation lubricating oil supply device, comprising a filter box (1), wherein a filter element (3) is disposed on the filter box (1), characterized in that, It also includes the ability to disassemble the mounting plate (2) disposed on the filter box (1), wherein the filter element (3) is installed at the bottom of the mounting plate (2). The mounting plate (2) has an outer tube (4) arranged in an array at its bottom. The outer tube (4) is made of non-magnetic material. The mounting plate (2) has a connecting plate (6) arranged at its top. The connecting plate (6) has a positioning column (501) inside. The bottom of the positioning column (501) is fixedly provided with a strong magnet (5) with a rotating columnar structure. The strong magnet (5) extends into the outer tube (4), and the outer wall of the strong magnet (5) abuts against the inner wall of the outer tube (4). The outer tube (4) is located in front of the filter element (3) in the direction of liquid flow.

2. The aviation lubricating oil supply device according to claim 1, characterized in that, The mounting plate (2) has a first positioning hole (202), and the bottom of the connecting plate (6) has a second positioning hole (601) corresponding to the first positioning hole (202). The two ends of the positioning post (501) are slidably disposed in the first positioning hole (202) and the second positioning hole (601) respectively. The connecting plate (6) has a through hole that communicates with the second positioning hole (601). A bolt is disposed in the through hole, and the bolt extends to one end of the second positioning hole (601) and is threadedly connected to the positioning post (501).

3. The aviation lubricating oil supply device according to claim 1, characterized in that, The outer tube (4) is made of plastic.

4. The aviation lubricating oil supply device according to claim 1, characterized in that, The mounting plate (2) has a mounting groove (201) on its top, the connecting plate (6) is slidably disposed in the mounting groove (201), and the top of both ends of the connecting plate (6) are fixedly provided with second handles.

5. The aviation lubricating oil supply device according to claim 4, characterized in that, The mounting groove (201) has a groove on its inner wall, and an elastic clamping plate (602) is fixedly provided on one side of the outer wall of the connecting plate (6), and the end of the elastic clamping plate (602) away from the connecting plate (6) is engaged with the groove.

6. The aviation lubricating oil supply device according to claim 1, characterized in that, The filter box (1) is fixedly provided with an oil inlet pipe (101) and an oil outlet pipe (102) at both ends. The filter box (1) is fixedly provided with a first baffle (103) and a second baffle (104). The first baffle (103) and the second baffle (104) are located near the outlet of the oil inlet pipe (101). Two sets of the second baffle (104) are symmetrically arranged. The two sets of second baffle (104) are located at the top and bottom of the first baffle (103) respectively. The second baffle (104) is provided with mesh holes.