Suction filter assembly and engine with same

Abstract

The utility model provides a suction filter assembly and an engine with the same. The suction filter assembly includes: an oil pipe; the end cover is arranged on a port of the oil pipe in a covering mode and comprises a first barrel, a first annular plate and a second barrel, the inner diameter of the first barrel is larger than that of the second barrel, the first end of the first barrel is connected with the first end of the second barrel through the first annular plate, and the first barrel is arranged outside the port in a sleeving mode; the filtering structure is located between the first annular plate and the port; the projection of the inner circumferential surface of the second cylinder on the filtering structure is in the filtering structure; a preset distance is reserved between the end face of the second end of the second barrel and the filtering structure and is larger than or equal to 6 mm. The suction filter effectively solves the problems that in the prior art, a whole vehicle inclines, and when the oil quantity of an oil pan is off line, the air suction phenomenon is prone to being generated at the filter screen of the suction filter.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and in particular to a filter assembly and an engine having the same. Background Art

[0002] At present, a larger filter suction cup is usually used at the tail end of a conventional oil filter. When the entire vehicle tilts and the oil level in the oil pan is below the line, the filter suction cup cannot be completely immersed in the oil, which can easily cause air suction.

[0003] In the prior art, in order to avoid the failure of the filter to absorb air, it is usually necessary to add more engine oil. However, the above method not only leads to increased costs, but also increases the weight of the entire machine. Utility Model Content

[0004] The main purpose of the utility model is to provide a filter assembly and an engine having the same, so as to solve the problem in the prior art that air is easily sucked into the filter screen of the filter when the whole vehicle is tilted and the oil level in the oil pan is below the limit.

[0005] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, a filter assembly is provided, comprising: an oil pipe; an end cover, which is arranged on the port of the oil pipe, the end cover comprising a first cylinder, a first annular plate and a second cylinder, the inner diameter of the first cylinder is larger than the inner diameter of the second cylinder, the first end of the first cylinder is connected to the first end of the second cylinder through the first annular plate, and the first cylinder is sleeved outside the port; a filtering structure, which is located between the first annular plate and the port; wherein the projection of the inner circumferential surface of the second cylinder on the filtering structure is inside the filtering structure; there is a preset distance between the end surface of the second end of the second cylinder and the filtering structure, and the preset distance is greater than or equal to 6 mm.

[0006] Furthermore, the end cover further includes: a cover plate, which is arranged on the second end of the second cylinder, and the cover plate has an opening, which is communicated with the inner cavity of the second cylinder.

[0007] Furthermore, the filter assembly further includes a sealing structure, which is arranged between the filtering structure and the first cylinder.

[0008] Furthermore, the first cylinder, the first annular plate, the second cylinder and the cover plate are an integrally formed structure.

[0009] Furthermore, the oil pipe includes: an oil pipe body; an oil inlet end, which is arranged on the end of the oil pipe body, and the oil inlet end includes a conical cylinder and a second annular plate connected to each other, and the two ends of the conical cylinder are respectively connected to the oil pipe body and the second annular plate; the second annular plate forms a port on the surface away from the conical cylinder; wherein, along the flow direction of the oil in the oil pipe, the inner diameter of the conical cylinder gradually decreases.

[0010] Furthermore, the end cover is clamped or threadedly connected to the oil pipe.

[0011] Furthermore, an extension portion is provided on the second end of the first cylinder, and the extension portion extends along the axial direction of the first cylinder; wherein, there is one extension portion; or, there are multiple extension portions, and the multiple extension portions are arranged at intervals along the circumference of the first cylinder.

[0012] Furthermore, the connection between the second cylinder and the cover plate has a chamfer.

[0013] Furthermore, the central axis of the first cylinder and the central axis of the second cylinder are coaxially arranged.

[0014] According to another aspect of the present invention, an engine is provided, comprising the above-mentioned filter assembly.

[0015] The technical solution of the present utility model comprises an oil pipe, an end cap, and a filter structure. The end cap is mounted on the port of the oil pipe and comprises a first barrel, a first annular plate, and a second barrel. The inner diameter of the first barrel is larger than that of the second barrel. The first end of the first barrel is connected to the first end of the second barrel via the first annular plate, and the first barrel is sleeved over the port. The filter structure is located between the first annular plate and the port; the projection of the inner circumference of the second barrel onto the filter structure is within the filter structure. This arrangement of the first and second barrels creates a constricted opening in the end cap, allowing the second barrel to preferentially contact the oil during operation. Because the inner diameter of the second barrel is smaller than that of the first barrel, oil preferentially fills the second barrel when the vehicle tilts and the oil level in the oil pan is below the limit, thereby preventing cavitation at the rear of the filter. This solves the problem of cavitation in the filter screen of the filter in the prior art when the vehicle tilts and the oil level in the oil pan is below the limit. Compared with the method of adding more engine oil in the prior art, the filter in the present application avoids the occurrence of air cavitation without adding more engine oil, thereby saving costs and reducing the weight of the entire machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The drawings constituting part of this application are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0017] Figure 1 A schematic diagram of the three-dimensional structure of an embodiment of a filter assembly according to the present utility model is shown;

[0018] Figure 2 Shown Figure 1 A three-dimensional cross-sectional view of the filter assembly in FIG.

[0019] The above drawings include the following reference numerals:

[0020] 10. Oil pipe; 11. Oil pipe body; 12. Oil inlet end; 121. Conical cylinder; 122. Second annular plate;

[0021] 20. End cover; 21. First cylinder; 22. First annular plate; 23. Second cylinder; 24. Cover plate; 241. Opening; 25. Extension;

[0022] 30. Filter structure;

[0023] 40. Chamfer. DETAILED DESCRIPTION

[0024] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0025] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0026] In the present invention, unless otherwise specified, directional words such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above directional words are not used to limit the present invention.

[0027] In order to solve the problem in the prior art that air is easily sucked into the filter screen of the filter when the entire vehicle tilts and the oil level in the oil pan is below the line, the present application provides a filter assembly and an engine having the same.

[0028] like Figure 1 and Figure 2 As shown, the filter assembly includes an oil pipe 10, an end cover 20 and a filter structure 30. The end cover 20 is installed on the port of the oil pipe 10. The end cover 20 includes a first cylinder 21, a first annular plate 22 and a second cylinder 23. The inner diameter of the first cylinder 21 is larger than the inner diameter of the second cylinder 23. The first end of the first cylinder 21 is connected to the first end of the second cylinder 23 through the first annular plate 22, and the first cylinder 21 is sleeved outside the port. The filter structure 30 is located between the first annular plate 22 and the port. The projection of the inner circumference of the second cylinder 23 on the filter structure 30 is inside the filter structure 30. There is a preset distance between the end face of the second end of the second cylinder 23 and the filter structure 30, and the preset distance is greater than or equal to 6 mm.

[0029] By applying the technical solution of this embodiment, the aforementioned arrangement of the first barrel 21 and the second barrel 23 creates a constricted structure on the end cap 20. During operation of the filter, the second barrel 23 preferentially contacts the oil. Because the inner diameter of the second barrel 23 is smaller than that of the first barrel 21, when the vehicle tilts and the oil level in the oil pan is below the limit, the oil preferentially fills and saturates the second barrel 23, thereby preventing cavitation from occurring at the rear of the filter. This solves the problem in the prior art of cavitation occurring at the filter screen when the vehicle tilts and the oil level in the oil pan is below the limit. Compared to the prior art method of adding more oil, the filter in this embodiment avoids cavitation without adding more oil, thereby saving costs and reducing the weight of the entire machine.

[0030] like Figure 1 and Figure 2 As shown, the end cap 20 further includes a cover plate 24. The cover plate 24 is disposed on the second end of the second barrel 23 and has an opening 241 that communicates with the inner cavity of the second barrel 23. Thus, during operation of the filter, oil can sequentially enter the engine through the opening 241, the inner cavity of the second barrel 23, and the inner cavity of the first barrel 21, thereby improving the fluidity of oil flow within the filter.

[0031] In this embodiment, the cover plate 24 and the first annular plate 22 are arranged parallel to each other.

[0032] Optionally, the filter assembly further includes a sealing structure disposed between the filter structure 30 and the first cylinder 21. This sealing structure prevents oil from entering the filter assembly from the connection between the filter structure 30 and the first cylinder 21, thereby preventing the engine from operating normally.

[0033] Optionally, the sealing structure is a sealing ring, which is arranged around the outer periphery of the filtering structure 30 .

[0034] In this embodiment, the first barrel 21, first annular plate 22, second barrel 23, and cover plate 24 are integrally formed. This arrangement not only enhances the structural strength of the end cap 20 and extends the service life of the filter assembly, but also makes the processing of the end cap 20 easier and simpler, reducing processing costs and difficulty.

[0035] like Figure 1 and Figure 2As shown, the oil pipe 10 includes an oil pipe body 11 and an oil inlet end 12. The oil inlet end 12 is arranged at the end of the oil pipe body 11. The oil inlet end 12 includes a conical cylinder 121 and a second annular plate 122 that are connected to each other. The two ends of the conical cylinder 121 are respectively connected to the oil pipe body 11 and the second annular plate 122. The surface of the second annular plate 122 away from the conical cylinder 121 forms a port. The inner diameter of the conical cylinder 121 gradually decreases along the flow direction of the oil in the oil pipe 10. In this way, the above-mentioned arrangement of the conical cylinder 121 improves the oil absorption capacity of the oil inlet end 12, thereby improving the operating efficiency of the filter. At the same time, the above-mentioned arrangement makes the structure of the oil pipe 10 simpler, easier to process and implement, and reduces the processing cost and difficulty of the oil pipe 10.

[0036] Optionally, the end cap 20 is snap-fitted or threadedly connected to the oil pipe 10. This arrangement not only allows for a detachable connection between the end cap 20 and the oil pipe 10, making it easier for workers to disassemble and assemble the two, but also allows for more diverse connection methods between the end cap 20 and the oil pipe 10 to meet different usage requirements and operating conditions.

[0037] In this embodiment, the end cover 20 is snap-connected to the oil pipe 10 .

[0038] like Figure 1 As shown, an extension portion 25 is provided on the second end of the first cylinder 21, and the extension portion 25 extends along the axial direction of the first cylinder 21. In this way, when the staff disassembles and assembles the end cover 20, they can hold the extension portion 25 to operate the end cover 20, thereby reducing the difficulty of operation for the staff.

[0039] Alternatively, there is one extension portion 25; or, there are multiple extension portions 25, which are spaced apart along the circumference of the first cylinder 21. In this way, the above arrangement makes the number of extension portions 25 more flexible to meet different usage requirements and working conditions, and also improves the processing flexibility of the staff.

[0040] In this embodiment, there are four extending portions 25 , which are spaced apart along the circumference of the first cylinder 21 .

[0041] It should be noted that the number of extensions 25 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, there are two, three, five, six, or more extensions 25.

[0042] like Figure 1 and Figure 2 As shown, the connection between the second cylinder 23 and the cover plate 24 has a chamfer 40. This arrangement prevents sharp edges or corners from forming at the connection between the second cylinder 23 and the cover plate 24, which could cut or scratch workers; and also prevents stress concentration at the connection between the two, which could affect the structural strength of the end cap 20.

[0043] In this embodiment, the central axis of the first cylinder 21 and the central axis of the second cylinder 23 are coaxially arranged. In this way, the above arrangement makes the appearance of the end cover 20 more neat and beautiful.

[0044] The present application also provides an engine (not shown) comprising the above-mentioned filter assembly.

[0045] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0046] The filter assembly includes an oil pipe, an end cap, and a filtering structure. The end cap is mounted on the port of the oil pipe and comprises a first barrel, a first annular plate, and a second barrel. The inner diameter of the first barrel is larger than that of the second barrel. The first end of the first barrel is connected to the first end of the second barrel via the first annular plate, and the first barrel is sleeved over the port. The filtering structure is located between the first annular plate and the port; the projection of the inner circumference of the second barrel onto the filtering structure is within the filtering structure. This arrangement of the first and second barrels creates a constricted structure on the end cap, allowing the second barrel to preferentially contact the oil during operation. Because the inner diameter of the second barrel is smaller than that of the first barrel, oil preferentially fills the second barrel when the vehicle tilts and the oil level in the oil pan is below the limit, preventing cavitation at the rear of the filter. This addresses the prior art issue of cavitation in the filter screen when the vehicle tilts and the oil level in the oil pan is below the limit. Compared with the method of adding more engine oil in the prior art, the filter in the present application avoids the occurrence of air cavitation without adding more engine oil, thereby saving costs and reducing the weight of the entire machine.

[0047] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0048] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0049] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0050] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A filter assembly, characterized in that: include: Oil pipe (10); an end cover (20) disposed on the port of the oil pipe (10), the end cover (20) comprising a first cylinder (21), a first annular plate (22) and a second cylinder (23), the inner diameter of the first cylinder (21) being larger than the inner diameter of the second cylinder (23), the first end of the first cylinder (21) being connected to the first end of the second cylinder (23) via the first annular plate (22), and the first cylinder (21) being sleeved outside the port; a filtering structure (30) located between the first annular plate (22) and the port; The projection of the inner circumferential surface of the second cylinder (23) on the filtering structure (30) is within the filtering structure (30); and there is a preset distance between the end surface of the second end of the second cylinder (23) and the filtering structure (30), and the preset distance is greater than or equal to 6 mm.

2. The filter assembly according to claim 1, characterized in that: The end cap (20) further comprises: A cover plate (24) is provided on the second end of the second cylinder (23), and the cover plate (24) has an opening (241), and the opening (241) is communicated with the inner cavity of the second cylinder (23).

3. The filter assembly according to claim 2, characterized in that: The filter assembly further comprises a sealing structure, which is arranged between the filtering structure (30) and the first cylinder (21).

4. The filter assembly according to claim 2, characterized in that: The first cylinder (21), the first annular plate (22), the second cylinder (23) and the cover plate (24) are an integrally formed structure.

5. The filter assembly according to claim 1, characterized in that: The oil pipe (10) comprises: Oil pipe body (11); An oil inlet end (12) is provided at the end of the oil pipe body (11), the oil inlet end (12) comprising a conical cylinder (121) and a second annular plate (122) connected to each other, the two ends of the conical cylinder (121) being connected to the oil pipe body (11) and the second annular plate (122) respectively; the surface of the second annular plate (122) away from the conical cylinder (121) forms the port; Wherein, along the flow direction of the oil in the oil pipe (10), the inner diameter of the tapered cylinder (121) gradually decreases.

6. The filter assembly according to claim 1, characterized in that: The end cover (20) is snap-fitted or threadedly connected to the oil pipe (10).

7. The filter assembly according to claim 1, characterized in that: An extension portion (25) is provided on the second end of the first cylinder (21), and the extension portion (25) extends along the axial direction of the first cylinder (21); wherein the extension portion (25) is one; or, the extension portion (25) is multiple, and the multiple extension portions (25) are arranged at intervals along the circumference of the first cylinder (21).

8. The filter assembly according to claim 2, characterized in that: The connection between the second cylinder (23) and the cover plate (24) has a chamfer (40).

9. The filter assembly according to claim 1, characterized in that: The central axis of the first cylinder (21) and the central axis of the second cylinder (23) are coaxially arranged.

10. An engine, characterized in that: A filter assembly comprising any one of claims 1 to 9.

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