A filter and an engine

Abstract

This application provides a filter and an engine. The filter includes a housing, a filter element, a first magnetic element, and a second magnetic element. The housing has a receiving cavity and an oil inlet and an oil outlet communicating with the receiving cavity. The filter element is disposed in the receiving cavity. The first magnetic element is located on the outer periphery of the filter element. The second magnetic element is located below the first magnetic element. The filter also includes a check valve capable of elastic deformation to block or open the oil inlet, and the check valve can prevent the backflow of engine oil in the receiving cavity. In this solution, large-volume metal impurities in the engine oil in the filter are pre-adsorbed by the first and second magnetic elements, reducing the problem of metal impurities clogging the filter element and reducing the impact of metal impurities on the filter element's filtration rate. At the same time, when the first magnetic element is de-energized, the metal impurities fall off and are re-adsorbed by the second magnetic element, allowing the filter to be reused, extending the filter replacement cycle, reducing the maintenance costs of the filter and engine, and reducing resource waste and environmental pollution.

Description

Technical Field

[0001] This utility model relates to the field of vehicle engineering technology, and in particular to a filter and an engine. Background Technology

[0002] Engine filters are crucial components for removing impurities such as dust, metal particles, carbon deposits, and soot particles from engine oil, playing a vital role in protecting the engine. However, existing engine filters suffer from problems such as short replacement intervals and high maintenance costs. Utility Model Content

[0003] This application provides a filter and an engine to improve the problems of existing filters having short replacement cycles and high maintenance costs.

[0004] One embodiment of this application provides a filter, which includes a housing, a filter element, a first magnetic element, and a second magnetic element.

[0005] The housing has a receiving cavity and an oil inlet and an oil outlet communicating with the receiving cavity. The filter element is disposed in the receiving cavity. The first magnetic element is located on the outer periphery of the filter element. The second magnetic element is located below the first magnetic element.

[0006] In this solution, a magnetic component is installed in the filter to perform preliminary filtration of the oil entering the filter element. This allows larger metal impurities to be pre-adsorbed by the first and second magnetic components, reducing the problem of metal impurities clogging the filter element, reducing the impact of metal impurities on the filter element's filtration rate, improving the overall filtration efficiency of the filter, extending the filter replacement cycle, reducing the maintenance costs of the filter and engine, and reducing resource waste and environmental pollution.

[0007] Furthermore, the second magnetic component located below the first magnetic component can adsorb metallic impurities in the oil when the filter is working, and can also adsorb metallic impurities that fall from the first magnetic component when the filter stops working. This allows the adsorbed metallic impurities to accumulate in the receiving cavity, which is beneficial for subsequent cleaning and maintenance. This enables the filter in this application to improve the filtration efficiency while also achieving filter reusability.

[0008] Optionally, the first magnetic element is strip-shaped.

[0009] At least two of the first magnetic elements are evenly spaced around the filter element in the circumferential direction.

[0010] Optionally, the filter further includes a top plate and a bottom plate, one end of the first magnetic element is mounted on the top plate, the other end of the first magnetic element is mounted on the bottom plate, and the top plate is annular.

[0011] Optionally, along the height direction of the filter, the second magnetic element is mounted on the side of the base plate opposite to the first magnetic element.

[0012] Optionally, the second magnetic element is arranged in a ring, and the first magnetic element has an inner edge facing the filter element, and the projection of the second magnetic element along the height direction of the filter at least covers the inner edge.

[0013] Optionally, the filter further includes a check valve, the housing includes a body and a cover forming the receiving cavity, the oil inlet and the oil outlet are disposed on the cover, the check valve is installed on the cover along the height direction of the filter, and the check valve is in communication with the oil outlet.

[0014] At least a portion of the structure of the check valve is deformable, allowing the check valve to either block or open the oil inlet.

[0015] Optionally, the check valve includes a sleeve portion and a deformable portion. The sleeve portion is fitted onto the flange of the housing, and the deformable portion is bent relative to the sleeve portion and can be elastically deformed. The projection of the deformable portion toward the cover covers the oil inlet.

[0016] Optionally, the first magnetic component is an electromagnet, and the second magnetic component is a permanent magnet.

[0017] Optionally, the filter element includes a first filter layer and a second filter layer, wherein the first filter layer surrounds the second filter layer.

[0018] Another embodiment of this application provides an engine, which includes an oil pump and a filter.

[0019] The oil pump provides power to the engine, and the filter filters impurities from the oil.

[0020] The filter is the filter described above.

[0021] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit this application. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the filter structure in an embodiment of this application;

[0023] Figure 2 This is a front cross-sectional view of the filter in an embodiment of this application;

[0024] Figure 3 This is a top cross-sectional view of the filter in an embodiment of this application.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1- Shell;

[0027] 11-Ontology;

[0028] 110 - Receiving cavity;

[0029] 12-Cap;

[0030] 121 - Oil inlet;

[0031] 122 - Oil outlet;

[0032] 122a - Flanged edge;

[0033] 2- Filter element;

[0034] 21 - First filter layer;

[0035] 22 - Second filter layer;

[0036] 3- First magnetic component;

[0037] 4- Second magnetic component;

[0038] 5- Top plate;

[0039] 6- Base plate;

[0040] 7- Check valve;

[0041] 71-Socket part;

[0042] 72-Deformation section;

[0043] 8- Coil.

[0044] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. Detailed Implementation

[0045] To better understand the technical solution of this application, the embodiments of this application will be described in detail below with reference to the accompanying drawings.

[0046] It should be understood that the described embodiments are merely some, not all, of the embodiments in this application. All other embodiments obtained by those skilled in the art based on the embodiments in this application without inventive effort are within the scope of protection of this application.

[0047] The terminology used in the embodiments of this application is for the purpose of describing particular embodiments only and is not intended to be limiting of this application. The singular forms “a,” “the,” and “the” used in the embodiments of this application and the appended claims are also intended to include the plural forms unless the context clearly indicates otherwise.

[0048] It should be understood that the term "and / or" used in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0049] In one specific embodiment, this application provides an engine including an oil pump and a filter. The oil pump provides power to the engine, and the filter filters impurities in the oil.

[0050] Specifically, the engine can be used in the vehicle field. This application does not limit the specific application scenarios of the engine.

[0051] In one specific embodiment, such as Figures 1-3 As shown, in order to improve the problem of insufficient filtration effect of existing filters, this application provides a filter. The filter in the embodiment of this application includes a housing 1, a filter element 2, a first magnetic element 3, and a second magnetic element 4.

[0052] The housing 1 has a receiving cavity 110 and an oil inlet 121 and an oil outlet 122 communicating with the receiving cavity 110. The filter element 2 is disposed in the receiving cavity 110. A first magnetic element 3 is located on the outer periphery of the filter element 2. A second magnetic element 4 is located below the first magnetic element 3.

[0053] Specifically, when the engine starts, the oil pump starts working, delivering pressurized oil from the inlet 121 into the filter's receiving chamber 110. The oil first flows through the first magnetic element 3 and the second magnetic element 4, which adsorb metallic impurities in the oil. The oil then flows into the filter element 2 for further filtration, and finally flows out of the filter from the outlet 122, completing the filtration process.

[0054] In this embodiment, a magnetic component is provided in the filter to perform preliminary filtration of the engine oil entering the filter element 2. This allows larger metal impurities to be adsorbed in advance by the first magnetic component 3 and the second magnetic component 4, reducing the problem of metal impurities clogging the filter element 2, reducing the impact of metal impurities on the filtration rate of the filter element 2, improving the overall filtration efficiency of the filter, extending the filter replacement cycle, reducing the maintenance costs of the filter and engine, and reducing resource waste and environmental pollution.

[0055] Furthermore, the second magnetic element 4, located below the first magnetic element 3, can adsorb metal impurities in the engine oil when the filter is working, and can also adsorb metal impurities that fall from the first magnetic element 3 when the filter stops working. This allows the adsorbed metal impurities to collect in the receiving cavity 110, which is beneficial for subsequent cleaning and maintenance. This enables the filter in this application to improve the filtration efficiency while also achieving filter reusability.

[0056] In some embodiments, such as Figure 2 and Figure 3 As shown, the first magnetic component 3 is an electromagnet, and the second magnetic component 4 is a permanent magnet.

[0057] In addition, the filter also includes a coil 8 for turning the electromagnet on or off. The coil 8 is connected to an external power source and can be energized or de-energized.

[0058] Specifically, the electromagnet generates a magnetic field by passing an external current through the coil 8. At this time, the first magnetic component 3 can attract metal impurities in the oil. When the coil 8 is de-energized, the magnetism of the electromagnet disappears. At this time, the first magnetic component 3 stops attracting metal impurities in the oil, and the metal impurities fall off the first magnetic component 3 under the action of gravity.

[0059] In this embodiment, the first magnetic element 3 can be made of soft iron or silicon steel, enabling rapid demagnetization of the coil 8 after power is cut off. In other embodiments, the first magnetic element 3 can also be made of other materials; this application does not limit the specific material of the first magnetic element 3.

[0060] The permanent magnet can maintain its magnetism continuously without external energy and has high stability. That is, the second magnetic component 4 maintains its adsorption effect on metallic impurities throughout the operation of the filter. In this embodiment, the specific material of the second magnetic component 4 can be iron. In other embodiments, the second magnetic component 4 can also be other magnetic materials such as cobalt, nickel, and neodymium. This application does not limit the specific material of the second magnetic component 4.

[0061] In this embodiment, the first magnetic component 3 is an electromagnet, and the second magnetic component 4 is a permanent magnet. When the coil 8 is energized, both the first magnetic component 3 and the second magnetic component 4 adsorb metallic impurities in the oil, improving the filter's adsorption efficiency for metallic impurities. When the coil 8 is de-energized, the magnetism of the first magnetic component 3 disappears, and the metallic impurities adsorbed on the first magnetic component 3 fall downwards under the action of gravity and are adsorbed again by the second magnetic component 4. This ensures that the metallic impurities when the coil 8 is de-energized are effectively collected and do not scatter, which is beneficial for subsequent cleaning of the filter. In addition, the filter can work repeatedly and can filter the oil multiple times, extending the filter replacement period and reducing resource waste and environmental pollution.

[0062] In some embodiments, such as Figure 2 and Figure 3 As shown, the first magnetic element 3 is strip-shaped. At least two first magnetic elements 3 are evenly spaced around the circumference of the filter element 2.

[0063] Specifically, the oil in the receiving cavity 110 can flow into the filter element 2 through the gap between the adjacent first magnetic element 3.

[0064] In this embodiment, on the one hand, the manufacturing process of the strip-shaped first magnetic element 3 is simple, reducing manufacturing costs. It has a large adsorption area for adsorbing metal impurities and strong spatial adaptability. Users can adjust the setting density of the first magnetic element 3 according to different needs, thereby improving the adsorption effect of the first magnetic element 3. On the other hand, at least two first magnetic elements 3 are evenly distributed around the filter element 2 in a circumferential manner, so that when the oil flows through the first magnetic element 3, the first magnetic element 3 can uniformly adsorb metal impurities in the oil, thereby improving the adsorption effect of the first magnetic element 3.

[0065] In this embodiment, the specific number of the first magnetic element 3 can be 6. In other embodiments, the number of the first magnetic element 3 can also be 4, 8, etc. This application does not limit the specific number of the first magnetic element 3.

[0066] In some embodiments, such as Figure 2 As shown, the filter also includes a top plate 5 and a bottom plate 6. One end of the first magnetic element 3 is installed on the top plate 5, and the other end of the first magnetic element 3 is installed on the bottom plate 6. The top plate 5 is annular.

[0067] In this embodiment, the first magnetic component 3 is fixedly connected to the top plate 5 and the bottom plate 6 at both ends along the height direction of the filter, which improves the installation stability of the first magnetic component 3 in the filter. The top plate 5 is annular to avoid the communication space between the filter element 2 and the oil outlet 122, and the top of the first magnetic component 3 is covered and connected by the annular top plate 5, and the bottom is covered and connected by the bottom plate 6, thereby improving the positional reliability of each first magnetic component 3.

[0068] In this embodiment, the top plate 5 and the bottom plate 6 can be made of cold-rolled steel plates, and the first magnetic element 3 can be connected to the top plate 5 and the bottom plate 6 by welding. In other embodiments, the top plate 5 and the bottom plate 6 can be made of other materials, and the first magnetic element 3 can be connected to the top plate 5 and the bottom plate 6 by snap-fit ​​or other methods. This application does not limit the specific materials of the top plate 5 and the bottom plate 6, nor the specific connection method between the first magnetic element 3 and the top plate 5 and the bottom plate 6.

[0069] In some embodiments, such as Figure 2 As shown, along the height direction of the filter, the second magnetic component 4 is installed on the side of the base plate 6 opposite to the first magnetic component 3.

[0070] Specifically, one side of the base plate 6 is welded to the first magnetic component 3, and the other side is connected to the second magnetic component 4. The second magnetic component 4 can be stably adsorbed onto the base plate 6 by magnetic force.

[0071] In this embodiment, the second magnetic component 4 is installed on the side of the base plate 6 away from the first magnetic component 3. When the magnetism of the first magnetic component 3 disappears, the metal impurities adsorbed on the first magnetic component 3 fall downward under the action of gravity and can be adsorbed again by the second magnetic component 4, so that the fallen metal impurities are effectively collected and do not scatter, which is beneficial for subsequent cleaning of the filter.

[0072] In some embodiments, such as Figure 2 and Figure 3 As shown, the second magnetic element 4 is arranged in a ring, and the first magnetic element 3 has an inner edge facing the filter element 2. The projection of the second magnetic element 4 along the height direction of the filter at least covers the inner edge.

[0073] In this embodiment, the second magnetic element 4 is arranged in a ring and the projection of the second magnetic element 4 along the height direction of the filter at least covers the inner edge, so that the second magnetic element 4 can fully adsorb the metal impurities that fall off from the first magnetic element 3, so that they are effectively collected and do not scatter, thereby improving the adsorption efficiency of the second magnetic element 4 and facilitating the subsequent cleaning of the filter.

[0074] In the above embodiments, such as Figure 1 and Figure 2 As shown, the filter also includes a check valve 7. The housing 1 includes a body 11 and a cover 12 forming a receiving cavity 110. An oil inlet 121 and an oil outlet 122 are disposed on the cover 12. Along the height direction of the filter, the check valve 7 is installed on the cover 12 and communicates with the oil outlet 122. At least a portion of the structure of the check valve 7 is deformable so that the check valve 7 can block or open the oil inlet 121.

[0075] Specifically, when the oil pump is working, it delivers pressurized oil to the filter. The check valve 7 undergoes elastic deformation and is pushed open by the pressurized oil, opening the oil inlet 121 and allowing the oil to enter the receiving chamber 110 for filtration. When the oil pump stops working, the check valve 7 automatically resets and seals the oil inlet 121 under the action of the rebound force, preventing the oil in the receiving chamber 110 from flowing back.

[0076] In addition, check valve 7 ensures that the filter is always filled with engine oil, preventing dry friction during cold starts. If the oil in the filter is drained, restarting requires waiting for the oil to refill the system, resulting in a temporary lack of lubrication for engine components. Check valve 7, by retaining oil, allows for instantaneous oil pressure build-up, reducing wear during cold starts.

[0077] refer to Figure 1As shown, the specific distribution of the oil inlet 121 and oil outlet 122 can be such that the oil outlet 122 is located at the center of the cover 12, and multiple oil inlets 121 are evenly spaced around the oil outlet 122. The maximum radial dimension of the oil outlet 122 is greater than the maximum radial dimension of the oil inlet 121, providing sufficient space for the inlet and outlet of engine oil. In other embodiments, the oil inlet 121 and oil outlet 122 can also be arranged in other ways. This application does not limit the specific distribution of the oil inlet 121 and oil outlet 122.

[0078] In some embodiments, such as Figure 2 As shown, the check valve 7 includes a sleeve portion 71 and a deformable portion 72. The sleeve portion 71 is sleeved on the flange 122a of the housing 1. The deformable portion 72 is bent relative to the sleeve portion 71 and can be elastically deformed. The projection of the deformable portion 72 toward the cover 12 covers the oil inlet 121.

[0079] In this embodiment, the sleeve portion 71 is fitted onto the flange 122a of the housing 1, improving the connection reliability between the check valve 7 and the cover 12. The deformable portion 72 bends relative to the sleeve portion 71 and can elastically deform, allowing the check valve 7 to stably block or open the oil inlet 121. When engine oil enters from the oil inlet 121, under the action of oil pressure, the deformable portion 72 deforms downward along the height direction. At this time, the engine oil entering from the oil inlet 121 can flow along the receiving cavity 110 to the space between the first magnetic element 3 and the inner wall of the housing 1, and flow into the filter element 2 through the gap between the first magnetic elements 3. When the oil pump stops working, that is, when the oil inlet 121 stops supplying oil, under the action of the rebound force of the deformable portion 72, the deformable portion 72 returns to its initial state, thereby the check valve blocks the oil inlet 121.

[0080] In this case, the check valve 7 is in the initial state of blocking the oil inlet 121.

[0081] In this embodiment, the check valve 7 can be made of nitrile rubber (NBR). In other embodiments, the check valve 7 can also be made of silicone rubber (VMQ), fluororubber (FKM), or other materials. This application does not limit the specific material of the check valve 7.

[0082] In the above embodiments, such as Figure 2 As shown, the filter element 2 includes a first filter layer 21 and a second filter layer 22, with the first filter layer 21 surrounding the second filter layer 22.

[0083] Specifically, both the first filter layer 21 and the second filter layer 22 are metal mesh structures, with different mesh counts to filter impurities of different sizes in the engine oil. Under the influence of the magnetic field of the first magnetic component 3 and the second magnetic component 4, the metal mesh can better adsorb and remove metallic impurities from the engine oil.

[0084] In this embodiment, the first filter layer 21 and the second filter layer 22 have different mesh counts, which can filter impurities of different sizes in the oil, thereby improving the adsorption capacity and filtration rate of the filter element 2.

[0085] In this embodiment, the specific mesh count of the first filter layer 21 and the second filter layer 22 can be 150 mesh for the first filter layer 21 and 300 mesh for the second filter layer 22. In other embodiments, the mesh count of the first filter layer 21 and the second filter layer 22 can also be other mesh counts. This application does not limit the specific mesh count of the first filter layer 21 and the second filter layer 22.

[0086] The specific working process of the filter in this embodiment is as follows:

[0087] When coil 8 is connected to an external power source and energized, the first magnetic component 3 generates a magnetic field, activating the engine's oil pump. The oil pump then delivers pressurized oil to the inlet 121, opening the check valve 7 that was blocking the inlet 121. The deformable part 72 undergoes elastic deformation, opening the inlet 121 and allowing oil to enter the receiving chamber 110. The oil flows through the first magnetic component 3 and the second magnetic component 4. Most of the metallic impurities in the oil are adsorbed by the first magnetic component 3, while a small portion is adsorbed by the second magnetic component 4 at the bottom. Subsequently, the oil with the metallic impurities removed passes through the gaps between the first magnetic components 3 and enters the filter element 2. The oil entering the filter element 2 undergoes deep filtration by passing through the first filter layer 21 and the second filter layer 22. Finally, the filtered oil is discharged from the filter through the outlet 122 connected to the filter element 2, completing the filtration process.

[0088] After the filter finishes its work, the oil pump is turned off and the coil 8 is de-energized. The deformed part 72 of the check valve 7 automatically resets under the action of the rebound force and seals the oil inlet 121 again. The magnetism of the first magnetic component 3 disappears, and the metal impurities adsorbed on the first magnetic component 3 fall downward under the action of gravity. They are then adsorbed by the second magnetic component 4 below the first magnetic component 3. At this time, the metal impurities are concentrated and adsorbed to the bottom plate 6. The first magnetic component 3 has sufficient contact surface to adsorb the oil to be filtered in the next cycle.

[0089] The above descriptions are merely specific implementations of the embodiments of this application, but the protection scope of the embodiments of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in the embodiments of this application should be covered within the protection scope of the embodiments of this application. Therefore, the protection scope of the embodiments of this application should be determined by the protection scope of the claims.

Claims

1. A filter characterized by, The filter includes: The housing (1) has a receiving cavity (110) and an oil inlet (121) and an oil outlet (122) communicating with the receiving cavity (110). Filter element (2), the filter element (2) is disposed in the receiving cavity (110); The first magnetic element (3) is located on the outer periphery of the filter element (2); The second magnetic element (4) is located below the first magnetic element (3).

2. The filter of claim 1, wherein The first magnetic element (3) is strip-shaped; At least two of the first magnetic elements (3) are evenly spaced around the filter element (2) in the circumferential direction.

3. The filter of claim 2, wherein The filter also includes a top plate (5) and a bottom plate (6). One end of the first magnetic element (3) is installed on the top plate (5), and the other end of the first magnetic element (3) is installed on the bottom plate (6). The top plate (5) is annular.

4. The filter of claim 3, wherein Along the height direction of the filter, the second magnetic element (4) is mounted on the side of the base plate (6) opposite to the first magnetic element (3).

5. The filter of claim 1, wherein The second magnetic element (4) is arranged in a ring, and the first magnetic element (3) has an inner edge facing the filter element (2), and the projection of the second magnetic element (4) along the height direction of the filter at least covers the inner edge.

6. The filter of claim 1, wherein The filter also includes a check valve (7). The housing (1) includes a body (11) and a cover (12) that form the receiving cavity (110). The oil inlet (121) and the oil outlet (122) are disposed on the cover (12). Along the height direction of the filter, the check valve (7) is installed on the cover (12) and the check valve (7) is connected to the oil outlet (122). At least a portion of the structure of the check valve (7) is deformable so that the check valve (7) can block or open the oil inlet (121).

7. The filter of claim 6, wherein The check valve (7) includes a sleeve (71) and a deformable part (72). The sleeve (71) is sleeved on the flange (122a) of the housing (1). The deformable part (72) bends relative to the sleeve (71) and can be elastically deformed. The projection of the deformable part (72) toward the cover (12) covers the oil inlet (121).

8. The filter according to any one of claims 1 to 7, characterized in that The first magnetic component (3) is an electromagnet, and the second magnetic component (4) is a permanent magnet.

9. The filter according to any one of claims 1 to 7, characterized in that The filter element (2) includes a first filter layer (21) and a second filter layer (22), wherein the first filter layer (21) surrounds the second filter layer (22).

10. An engine characterized by, The engine includes: An oil pump that provides power to the engine; A filter capable of filtering impurities from engine oil; The filter is the filter according to any one of claims 1-9.

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