CN115163248B

CN115163248B - Engine oil filter

Info

Publication number: CN115163248B
Application number: CN202210900447.9A
Authority: CN
Inventors: 商权波; 邓俊
Original assignee: Tongji University
Current assignee: Tongji University
Priority date: 2022-07-28
Filing date: 2022-07-28
Publication date: 2023-04-28
Anticipated expiration: 2042-07-28
Also published as: CN115163248A

Abstract

The invention relates to the technical field of automobile oil filters, in particular to an engine oil filter which comprises a filter paper layer, a super-hydrophobic filter membrane, a central inner tube, an upper end cover, a magnet, a lower end cover, a hydrophilic filter membrane, a water filtering device, a rubber tube, a water storage tank, a water level sensor, a drain valve, a controller, a filter bottom shell and a central outer tube. The engine oil filters out large particles through a filter paper layer, then contacts with a super-hydrophobic filter membrane through a central outer tube, moisture in the engine oil is blocked by the super-hydrophobic filter membrane and is agglomerated into water drops, the water drops sink to a lower end cover along with gravity, and the engine oil is left through a hydrophilic filter membrane and is discharged through a central inner tube; the water drops are collected into the water storage tank through a rubber pipe connected with the water filtering device; the water storage tank is internally provided with a water level sensor and a drain valve, when the water level in the water storage tank is too high, the controller controls the drain valve to be opened, water in the water storage tank is drained, and the drain valve is controlled to be closed after the water is emptied.

Description

Engine oil filter

Technical Field

The invention relates to the technical field of automobile oil filters, in particular to an engine oil filter.

Background

New engines with zero or low carbon emissions are becoming a current development hotspot, such as hydrogen engines, ammonia engines, water jet engines, etc. Compared with the traditional engines, the novel engines generate a large amount of water in operation, and the generation amount is several times larger than that of the traditional fuel engines. The generated water is easily mixed into the engine oil to cause emulsification and deterioration of the engine oil.

The engine oil filter in the current market is mainly used for filtering metal abrasive dust, carbon deposit, colloidal sediment and the like generated in the working process of the traditional engine so as to keep the lubricating oil clean. These filters do not remove moisture generated during engine operation. Therefore, the invention improves on the basis of the filter element of the traditional engine oil filter so as to adapt to the characteristic that the water generation amount in the novel engine is larger than that of the traditional engine, ensure the lubricating performance of the engine oil and prolong the service life of the engine oil.

Disclosure of Invention

In order to solve the problems, the invention aims to provide an engine oil filter, which comprises a central inner pipe, a super-hydrophobic filter membrane, a central outer pipe and a filter paper layer, wherein the super-hydrophobic filter membrane, the central outer pipe and the filter paper layer are sequentially sleeved on the periphery of the central inner pipe; the bottom surface of the upper end cover is provided with a magnet, the bottom surface of the lower end cover is additionally provided with a water filtering device by processing means such as welding, the water filtering device is in a circular groove shape, and a hydrophilic filtering membrane is arranged in the groove; the lower end cover is provided with an annular through hole between the filter paper layer and the super-hydrophobic filter membrane and communicated with the water filtering device. The engine oil filters out large particles through a filter paper layer, then contacts with a super-hydrophobic filter membrane through a central outer tube, moisture in the engine oil is blocked by the super-hydrophobic filter membrane and is agglomerated into water drops, the water drops sink to a lower end cover along with gravity, and the engine oil is left through a hydrophilic filter membrane and is discharged through a central inner tube; the water drops are collected into the water storage tank through a rubber pipe connected with the water filtering device; the water storage tank is internally provided with a water level sensor and a drain valve, when the water level in the water storage tank is too high, the controller controls the drain valve to be opened, water in the water storage tank is drained, and the drain valve is controlled to be closed after the water is emptied. In addition, the water storage tank assembly (comprising a water storage tank, a water level sensor and a drain valve) can be detached and reused.

The aim of the invention can be achieved by the following technical scheme:

the invention aims to provide an engine oil filter which comprises a filter shell, a filter element and a water storage tank; the filter element comprises a filter paper layer, a super-hydrophobic filter membrane, a central outer tube, a central inner tube, an upper end cover and a lower end cover; the central inner pipe and the central outer pipe are provided with holes;

the filter paper layer, the super-hydrophobic filter membrane, the central outer tube, the central inner tube, the upper end cover and the lower end cover are arranged in the filter shell, and a round hole is formed in the bottom of the filter shell and communicated with the water storage tank;

the filter paper layer and the super-hydrophobic filter membrane are annular, and the filter paper layer, the central outer tube and the super-hydrophobic filter membrane are sequentially arranged outside the central inner tube; the upper part is provided with an upper end cover, and the bottom is provided with a lower end cover;

the filter paper layer is used for filtering and removing large particles and gelatinous precipitates in the engine oil;

the super-hydrophobic filter membrane is used for removing water in the engine oil;

the upper end cover and the lower end cover are used for fixing the filter paper layer, the super-hydrophobic filter membrane, the central outer tube and the central inner tube;

the water storage tank is used for storing water obtained by filtering the super-hydrophobic filtering membrane.

In one embodiment of the invention, a plurality of magnets for adsorbing iron-containing abrasive dust in engine oil are arranged on one side of the upper end cover, which is close to the lower end cover.

In one embodiment of the invention, an annular through hole for water outflow is arranged on one side of the lower end cover, which is close to the upper end cover;

the annular through hole is arranged between the filter paper layer and the super-hydrophobic filter membrane.

In one embodiment of the invention, the side of the lower end cover away from the upper end cover is provided with a water filtering device which is communicated with the annular through hole.

In one embodiment of the present invention, the water filtering device is a circular annular groove, and a hydrophilic filtering membrane is arranged in the groove.

In one embodiment of the invention, the bottom of the water filtering device is connected with a rubber tube, and the rubber tube is connected with the water storage tank through a round hole.

In one embodiment of the invention, the connection between the hose and the filter housing and the connection between the hose and the water filter are sealed.

In one embodiment of the invention, the water storage tank is provided with a water level sensor and a drain valve at the bottom.

In one embodiment of the invention, the water storage tank is provided with a controller, the water level sensor and the drain valve are both connected with the controller, the water level sensor transmits the water level in the water storage tank to the controller, and when the water level in the water storage tank reaches a threshold value, the controller controls the drain valve to be opened, and then controls the drain valve to be closed after the water is emptied.

In one embodiment of the invention, the filter paper layer is provided with a plurality of folds which increase the filtering area and are uniformly spaced.

In one embodiment of the invention, the super-hydrophobic filter membrane is provided with a plurality of folds which increase the filter area and are uniformly spaced.

Compared with the prior art, the invention has the following beneficial effects:

compared with the existing filter element, the engine oil filter can attract scrap iron in lubricating oil through the magnet, can prevent the filter paper layer from being blocked by the scrap iron, the first layer of filter paper layer filters large particles and gelatinous sediments in engine oil, the second layer of super-hydrophobic filter membrane filters the water in the engine oil, and the water is collected into the water storage tank and discharged through the water filtering device arranged on the lower end cover, so that the engine oil can be effectively prevented from being excessively emulsified to lose the lubricating effect. The invention can maintain lubricating property of engine oil, prolong the service life of lubricating oil and ensure stable operation of engine.

Drawings

FIG. 1 is a schematic view of an engine oil filter according to the present invention;

FIG. 2 is a schematic illustration of a lower end cap in an engine oil filter according to the present invention;

FIG. 3 is a schematic illustration of an upper end cap in an engine oil filter according to the present invention;

FIG. 4 is a schematic illustration of a water filtering apparatus in an engine oil filter according to the present invention;

reference numerals illustrate:

1. a filter paper layer; 2. a superhydrophobic filtration membrane; 3. a central inner tube; 4. an upper end cap; 5. a magnet; 6. a lower end cap; 7. a hydrophilic filtration membrane; 8. a water filtering device; 9. a rubber tube; 10. a water storage tank; 11. a water level sensor; 12. a drain valve; 13. a controller; 14. a filter housing; 15. a central outer tube; 16. an annular through hole; 17. a spring; 18. a gasket; 19. a compression spring; 20. a bypass valve base.

Detailed Description

The invention provides an engine oil filter, which comprises a filter shell, a filter element and a water storage tank; the filter element comprises a filter paper layer, a super-hydrophobic filter membrane, a central outer tube, a central inner tube, an upper end cover and a lower end cover; the central inner pipe and the central outer pipe are provided with holes;

The invention will now be described in detail with reference to the drawings and specific examples.

In the description of the present invention, unless explicitly stated and limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of two elements or the interaction relationship of the two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

In the present invention, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

In the description of the present embodiment, the terms "upper", "lower", "left", "right", etc., are orientation or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of operation, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the invention.

Example 1

The embodiment provides an engine oil filter, as shown in fig. 1-4, comprising a filter housing 14, a filter element and a water storage tank 10; the filter element comprises a filter paper layer 1, a super-hydrophobic filter membrane 2, a central outer tube 15, a central inner tube 3, an upper end cover 4 and a lower end cover 6; the central inner tube 3 and the central outer tube 15 are provided with holes; the filter paper layer 1, the super-hydrophobic filter membrane 2, the central outer tube 15, the central inner tube 3, the upper end cover 4 and the lower end cover 6 are arranged in the filter shell 14, and a round hole is formed in the bottom of the filter shell and communicated with the water storage tank 10; the filter paper layer 1 and the super-hydrophobic filter membrane 2 are annular, and the filter paper layer 1, the central outer tube 15 and the super-hydrophobic filter membrane 2 are sequentially arranged outside the central inner tube 3; the upper part is provided with an upper end cover 4, the bottom part is provided with a lower end cover 6, and a central inner pipe 3 and a central outer pipe 15 are fixed between the upper end cover 4 and the lower end cover 6 and are used for supporting the filter paper layer 1 and the super-hydrophobic filter membrane 2 so as to be difficult to deform; the filter paper layer 1 and the super-hydrophobic filter layer are provided with a plurality of folds which increase the filter area and are uniformly spaced;

a plurality of magnets 5 for absorbing iron-containing abrasive dust in engine oil are arranged below the upper end cover 4, an annular through hole 16 for water outflow is arranged on one side above the lower end cover 6, the annular through hole 16 is arranged between the filter paper layer 1 and the super-hydrophobic filter membrane 2, a plurality of water filtering devices 8 are arranged below the lower end cover 6 and communicated with the annular through hole 16, the water filtering devices 8 are circular annular grooves, hydrophilic filter membranes 7 are arranged in the grooves, the bottoms of the water filtering devices are connected with rubber tubes 9, the rubber tubes 9 are connected with a water storage tank 10 through round holes, and the joints of the rubber tubes 9, a filter shell 14 and the rubber tubes 9, and the water filtering devices 8 are glued to prevent oil leakage; the bottom of the water storage tank 10 is provided with a water level sensor 11, a drain valve 12 and a controller 13, the water level sensor 11 and the drain valve 12 are connected with the controller 13, the water level sensor 11 transmits the water level height in the water storage tank 10 to the controller 13, and when the water level in the water storage tank 10 reaches a threshold value, the controller 13 controls the drain valve 12 to be opened.

During operation, the engine oil passes through the filter paper layer 1 to filter out large particles, then contacts the super-hydrophobic filter film 2 through the central outer tube 15, moisture in the engine oil is blocked by the super-hydrophobic filter film 2 and is agglomerated into water drops, the water drops sink to the lower end cover 6 along with gravity and pass through the hydrophilic filter film 7, and the hydrophilic filter film 7 is characterized by hydrophilic oleophobic, so that the engine oil cannot pass through the hydrophilic filter film 7, the engine oil is prevented from leaking through the water filtering device 8, and the water drops are gathered into the water storage tank 10 through the rubber tube 9 connected with the water filtering device 8; a water level sensor 11 and a drain valve 12 are arranged in the water storage tank 10, when the water level in the water storage tank 10 is too high, a controller 13 controls the drain valve 12 to be opened, water in the water storage tank 10 is drained, and the drain valve 12 is controlled to be closed after the water is emptied;

the engine oil flowing through the central inner pipe 3 enters an automobile lubricating system, a fixed bypass valve sub-assembly (comprising a bypass valve base 20, a spring 17, a gasket 18 and a compression spring 19) is arranged in the central inner pipe 3, the spring 17 is arranged in the bypass valve base 20, the bottom of the bypass valve base 20 is connected with the gasket 18, the bottom of the gasket 18 is connected with the compression spring 19), when the automobile is cold started or a filter element is seriously blocked, the engine oil pushes up the spring 17, and the engine oil directly enters an engine through the bypass valve sub-assembly, so that the normal supply of the engine oil is ensured, and the dry friction of the engine is prevented; the lower part of the filter element is provided with a compression spring 19 for fixing the position of the filter element in the filter.

Wherein the water storage tank 10, the water level sensor 11 and the drain valve 12 are detachable from the filter housing 14 and reusable.

The previous description of the embodiments is provided to facilitate a person of ordinary skill in the art in order to make and use the present invention. It will be apparent to those skilled in the art that various modifications can be readily made to these embodiments and the generic principles described herein may be applied to other embodiments without the use of the inventive faculty. Therefore, the present invention is not limited to the above-described embodiments, and those skilled in the art, based on the present disclosure, should make improvements and modifications without departing from the scope of the present invention.

Claims

1. An engine oil filter is characterized by comprising a filter shell (14), a filter element and a water storage tank (10); the filter element comprises a filter paper layer (1), a super-hydrophobic filter membrane (2), a central outer tube (15), a central inner tube (3), an upper end cover (4) and a lower end cover (6); the central inner tube (3) and the central outer tube (15) are provided with holes;

the filter paper layer (1), the super-hydrophobic filter membrane (2), the central outer tube (15), the central inner tube (3), the upper end cover (4) and the lower end cover (6) are arranged in the filter shell (14), and a round hole is formed in the bottom of the filter shell (14) and communicated with the water storage tank (10);

the filter paper layer (1) and the super-hydrophobic filter membrane (2) are annular, and the filter paper layer (1), the central outer tube (15) and the super-hydrophobic filter membrane (2) are sequentially arranged outside the central inner tube (3); the upper part is provided with an upper end cover (4), and the bottom is provided with a lower end cover (6);

the filter paper layer (1) is used for filtering and removing large particles and gelatinous precipitates in the engine oil;

the super-hydrophobic filter membrane (2) is used for removing water in the engine oil;

the upper end cover (4) and the lower end cover (6) are used for fixing the filter paper layer (1), the super-hydrophobic filter membrane (2), the central outer tube (15) and the central inner tube (3);

the water storage tank (10) is used for storing water obtained by filtering through the super-hydrophobic filtering membrane (2).

2. The engine oil filter according to claim 1, wherein a plurality of magnets (5) for absorbing iron-containing abrasive dust in engine oil are arranged on one side of the upper end cover (4) close to the lower end cover (6).

3. An engine oil filter according to claim 1, characterized in that the lower end cap (6) is provided with an annular through hole (16) for water outflow on the side close to the upper end cap (4);

the annular through hole (16) is arranged between the filter paper layer (1) and the super-hydrophobic filter membrane (2).

4. An engine oil filter according to claim 1, characterized in that the side of the lower end cap (6) remote from the upper end cap (4) is provided with a water filtering device (8) communicating with the annular through hole (16).

5. An engine oil filter according to claim 4, characterized in that the water filtering device (8) is a circular annular groove, and a hydrophilic filtering membrane (7) is arranged in the groove.

6. An engine oil filter according to claim 5, characterized in that the bottom of the water filtering device (8) is connected with a hose (9), said hose (9) being connected with the water storage tank (10) through a circular hole.

7. An engine oil filter according to claim 1, characterized in that the bottom of the water storage tank (10) is provided with a water level sensor (11) and a drain valve (12).

8. The engine oil filter according to claim 7, wherein the water storage tank (10) is provided with a controller (13), the water level sensor (11) and the drain valve (12) are both connected with the controller (13), the water level sensor (11) transmits the water level in the water storage tank (10) to the controller (13), when the water level in the water storage tank (10) reaches a threshold value, the controller (13) controls the drain valve (12) to be opened, and the drain valve (12) is controlled to be closed after the water is emptied.

9. An engine oil filter according to claim 1, characterized in that the filter paper layer (1) is provided with a number of evenly spaced folds which increase the filtering area.

10. An engine oil filter according to claim 1, characterized in that the superhydrophobic filter membrane (2) is provided with a number of evenly spaced pleats increasing the filter area.