An air filter for an engine and an intake system

Abstract

The utility model discloses an air filter for engine, including upper casing, filter unit and lower casing, filter unit sets up in the containing cavity that upper and lower casing enclose, the opening face of lower casing or the extension of opening face and the central axis of filter unit or the extension of central axis intersect, and the included angle that forms is <90 DEG, be provided with the air outlet on the lower casing, and the air outlet communicates with filter unit. The utility model still provides a kind of power system on the other hand, including engine, and the air filter for engine described above, and bracket is provided on the air filter for engine. The beneficial effect of this basic scheme is that: when maintaining, operation space is directly widened, and maintenance efficiency can be greatly improved, the operation field of view is good, and the internal structure can be directly observed, so that blind troubleshooting time is reduced, in addition, maintenance is clean and convenient, and the accumulation of dust and oil stains does not affect the service life of the air filter.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, specifically to an air filter and intake system for an engine. Background Technology

[0002] During engine operation, a large amount of air needs to be drawn in. The air filter is usually installed in front of the air-fuel mixing device or intake manifold to filter out dust and sand particles in the air, ensuring that sufficient clean air enters the cylinder, so that the engine can operate normally.

[0003] For example, CN222184963U discloses a novel air filter lower housing structure, including an air filter upper housing, an air inlet pipe on the upper housing, a lower housing on the lower surface of the upper housing, and an air outlet on the right surface of the lower housing; a disassembly and assembly mechanism, disposed on the upper housing, for disassembling and assembling the air filter housing, comprising two hollow columns fitted onto the inner surface of the upper housing; and a water-draining mechanism, disposed on the lower housing, for filtering moisture generated during air filtration, comprising water-draining holes on the lower surface of the lower housing base plate. Preferably, the outer surface of the hollow columns has two circular holes, each containing a bead. Preferably, the disassembly and assembly mechanism further includes a spring and a ring, the spring being fixedly installed in the inner wall of the hollow column, and the ring being fixedly installed at the lower end of the spring. Preferably, the disassembly and assembly mechanism further includes a fixing rod, which is fixedly sleeved on the inner surface of the ring and slidably sleeved on the inner surface of the hollow column. Preferably, a pull ring is fixedly installed at the upper end of the fixing rod, and two circular grooves are formed on the outer surface of the fixing rod. Preferably, the drainage mechanism further includes a dustproof net, which is fixedly installed on the upper surface of the bottom plate of the lower housing of the air filter.

[0004] The above solution achieves internal drying and cleaning through the installation of drainage holes and dust filters; however, during maintenance, the air filter needs to be removed, which is inefficient, especially for machines that require frequent maintenance, and frequent disassembly and assembly affects the service life of the components. Utility Model Content

[0005] The purpose of this invention is to provide an engine air filter and intake system with high maintenance efficiency and long service life, which is especially suitable for frequent maintenance or complex operating conditions and environments.

[0006] To achieve the above objectives, the basic solution of this utility model provides an air filter for an engine, including an upper housing, a filter unit, and a lower housing. The filter unit is disposed in a receiving cavity enclosed by the upper and lower housings. The opening surface or the extended surface of the opening surface of the lower housing intersects the central axis or the extension line of the central axis of the filter unit, forming an angle of <90°.

[0007] The advantages of this basic solution are: during maintenance, the operating space is directly expanded, which can significantly improve maintenance efficiency; the operating field of vision is good, making it easy to see the internal structure directly and reducing the time spent on blind troubleshooting; in addition, maintenance and cleaning are thorough and convenient, avoiding the accumulation of dust and oil that affects the service life of the air filter.

[0008] Preferably, the lower housing is provided with an air outlet, which is connected to the filter unit.

[0009] Preferably, the lower housing is further provided with an air inlet, which is connected to the filter unit.

[0010] Preferably, the air inlet is located at the far end of the air outlet. This more rational spatial arrangement improves fluid utilization efficiency and system stability, thereby extending the service life of the components.

[0011] Preferably, the air inlet is located at the bottom of the lower housing. This effectively reduces the risk of impurities being drawn in, making it less likely for large particles of dust and debris near the ground to be directly sucked in, reducing wear and tear on internal components, optimizing air intake efficiency, improving equipment stability, and extending service life.

[0012] Preferably, both the upper and lower housings are provided with mounting portions, which are detachably fastened together to form a receiving cavity. In this design, the upper and lower housings can be detachably fastened and fixed using fasteners, or by using snap-fit ​​or latching mechanisms in the mounting portions. Overall, this simplifies the assembly and disassembly process, eliminates the need to damage the fixed structure, and improves maintenance efficiency. Furthermore, it reduces component wear, prevents damage to fasteners or the equipment body during disassembly, and extends service life.

[0013] Preferably, the lower housing is provided with a retaining part, which can precisely confine the filter unit within the lower housing. This facilitates maintenance while also fixing and protecting the filter unit, extending its service life.

[0014] Secondly, this utility model provides a power system, including the engine air filter described in the above-mentioned scheme; a bracket is provided on the engine air filter.

[0015] Preferably, the bracket is flexibly mounted on the lower housing. In complex working conditions or environments, this allows the air filter to adapt to deformation to the greatest extent, buffer the impact of vibration or noise, and significantly improve the stability and service life of the power system.

[0016] Preferably, a buffer is provided between the bracket and the lower housing.

[0017] Preferably, the engine air filter is inclined relative to the horizontal plane by a bracket. The bracket can be an irregularly shaped bracket with at least two mounting parts. One mounting part is flexibly mounted on the lower housing, and the other mounting part can be mounted on the frame of the working unit, the engine, or other locations. In this case, the engine air filter is inclined relative to the horizontal plane, which facilitates maintenance.

[0018] This utility model has the following beneficial effects: 1. The ingenious structure and layout design allows for maximum exposure of the filter unit during maintenance, directly expanding the operating space and making it more convenient to disassemble and install internal parts and replace consumables, significantly improving efficiency; the good operating visibility makes it easy to see the internal structure directly and quickly locate the fault point (such as loose wiring, worn parts, dust accumulation and blockage), reducing the time spent on blind troubleshooting; in addition, maintenance and cleaning are more thorough, avoiding the accumulation of dust and oil that affects the service life of the air filter.

[0019] 2. Efficient and convenient disassembly and assembly without damaging the fixed structure, improving maintenance efficiency, especially suitable for frequent maintenance or complex working conditions and environments; on the other hand, it can reduce component wear, and will not damage the fixed parts or the equipment body during disassembly, thus extending the service life.

[0020] 3. The ingenious and reliable installation layout enables the air filter to adapt to deformation and buffer the impact of vibration or noise to the greatest extent in complex working conditions or environments, which can greatly improve the stability and service life of the power system. Attached Figure Description

[0021] Figure 1 This is an isometric view of Embodiment 1 of this utility model.

[0022] Figure 2 for Figure 1 A second-person perspective view.

[0023] Figure 3 for Figure 1 A third-person perspective view.

[0024] Figure 4 This is a cross-sectional view of Embodiment 1 of the present invention. Detailed Implementation

[0025] The "open surface" involved in this utility model refers to the open surface formed by the circumferential edge of the lower shell.

[0026] When an engine operates in harsh environments (such as areas with heavy sandstorms), the air filter often needs maintenance. When the size and installation location of the engine are limited, the maintenance space for the air filter will also be limited. This requires that existing air filters not only meet the function of dust filtration, but also meet the requirement of easy maintenance.

[0027] Therefore, this utility model provides a specific implementation method for an engine air filter and power system that is easy to maintain and has a long service life.

[0028] The following detailed description illustrates the specific implementation method: The reference numerals in the accompanying drawings include: 1-lower housing, 11-air outlet, 12-air inlet, 13-holding part, 2-filter unit, 3-upper housing, 4-mounting part, 5-bracket, and 6-buffer gasket.

[0029] The air filter for engines provided in this embodiment includes an upper housing 3, a filter unit 2, and a lower housing 1. The filter unit 2 is disposed in the receiving cavity formed by the upper housing 3 and the lower housing 1. The opening surface or the extended surface of the opening surface of the lower housing intersects the central axis or the extension line of the central axis of the filter unit, and the included angle is <90°.

[0030] Even better, the opening surface or the extended surface of the lower housing intersects the central axis or the extension of the central axis of the filter unit, forming an angle greater than 0° and less than 90°.

[0031] Even better, filter unit 2 has a cylindrical structure.

[0032] Even better, the lower housing 1 is provided with an air outlet 11, which is connected to the filter unit 2.

[0033] Even better, the lower housing 1 is also provided with an air inlet 12, which is connected to the filter unit 2.

[0034] Better yet, the air inlet 12 is located at the far end of the air outlet 11.

[0035] Even better, the air inlet 12 is located at the bottom of the lower housing 1.

[0036] Even better, both the upper housing 3 and the lower housing 1 are provided with mounting parts 4, which can be detachably fastened together to form a receiving cavity. The mounting parts 4 may be provided with bolt holes or snap-fit ​​structures.

[0037] Even better, the lower housing 1 is provided with a retaining part 13, which can just confine the filter unit 2 inside the lower housing 1.

[0038] This embodiment also provides a specific implementation of the intake system, including the engine air filter provided in the above embodiment; a bracket 5 is provided on the engine air filter.

[0039] Even better, the bracket 5 is flexibly mounted on the lower housing 1.

[0040] Even better, a buffer element is provided between the bracket 5 and the lower housing 1, wherein the buffer element can be a buffer washer 6.

[0041] Even better, the engine air filter is inclined relative to the horizontal plane via a bracket 5. Specifically, the bracket 5 can be an irregularly shaped bracket with at least two mounting parts. One mounting part is flexibly mounted on the lower housing 1, and the other mounting part can be mounted on the frame, engine, or other positions of the working unit. In this case, the engine air filter is inclined relative to the horizontal plane, which facilitates maintenance.

[0042] Example 1 is basically as shown in the appendix. Figure 1-4 As shown: The engine air filter provided in this embodiment mainly consists of an upper housing 3, a filter unit 2, and a lower housing 1. The filter unit 2 is disposed in the receiving cavity formed by the upper housing 3 and the lower housing 1. The filter unit 2 has a cylindrical structure.

[0043] In this design, the opening of the lower housing 1 intersects the central axis of the filter unit 2, or the extended surface of the opening intersects the extended line of the central axis of the filter unit 2, forming an angle greater than 0° and less than 90°. Preferably, the opening of the upper housing 3 also intersects the central axis of the filter unit 2, or the extended surface of the opening intersects the extended line of the central axis of the filter unit 2, forming an angle greater than 0° and less than 90°. The direction of the extension of the opening of the upper housing 3 is exactly opposite to that of the lower housing 1. When the upper housing 3 and the lower housing 1 are fastened together, they can form a relatively regular-shaped receiving cavity that can accommodate the filter unit 2, resulting in a compact design and high utilization rate. When the upper housing 3 is removed, the filter unit 2 can be exposed to the maximum extent, directly expanding the operating space, improving the operating field of vision, and making it more convenient to disassemble and assemble internal parts, replace consumables, and clean dust and oil stains.

[0044] An air outlet 11 and an air inlet 12 are also provided on the lower housing 1. Both the air outlet 11 and the air inlet 12 are connected to the filter unit 2. The airflow passes through the air inlet 12 to reach the filter unit 2 for filtration, and then exits through the air outlet 11. Preferably, the air inlet 12 can be arranged at the bottom of the lower housing 1, and the air outlet 11 can be arranged at the far end of the air inlet 12, so that they do not interfere with each other and can improve fluid utilization efficiency and system stability.

[0045] In addition, a retaining part 13 is arranged on the lower housing 1 to just contain the filter unit 2 inside the lower housing 1. In this embodiment, the retaining part 13 is a baffle structure, which is set at the lowest point of the horizontal position at the opening of the lower housing 1, so that the filter unit 2 is just stuck inside the lower housing 1.

[0046] In addition, both the lower housing 1 and the upper housing 3 are provided with mounting parts 4. In this embodiment, there are two mounting parts 4 on the lower housing 1 and the upper housing 3, which are arranged symmetrically in front and back or left and right. The mounting parts 4 are provided with mounting holes. When the lower housing 1 and the upper housing 3 are fastened together, the mounting parts 4 are exactly paired. The lower housing 1 and the upper housing 3 are installed and connected into a whole by bolts or screws passing through the mounting holes, and the interior forms a receiving cavity to accommodate the filter unit 2.

[0047] Example 2 is basically as follows Figure 1-4 As shown This embodiment provides a specific implementation of an intake system, which includes the engine air filter provided in the above embodiment, and the engine air filter is provided with a bracket 5.

[0048] Specifically, one end or one side of the bracket 5 is flexibly mounted on the lower housing 1 via a mounting component, and the other end or one side is mounted on the frame of the engine or work machine. Preferably, the mounting component includes a buffer washer 6.

[0049] At this point, the engine air filter is arranged at an angle relative to the horizontal plane, which facilitates maintenance.

[0050] The above description is merely an embodiment of this utility model, and common knowledge such as specific structures and characteristics of the solution is not described in detail here. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model, and these should also be considered within the protection scope of this utility model. These modifications and improvements will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. An air filter for an engine, comprising an upper housing, a filter unit, and a lower housing, wherein the filter unit is disposed within a receiving cavity formed by the upper and lower housings, characterized in that: The opening surface or the extended surface of the lower housing intersects the central axis or the extension of the central axis of the filter unit, forming an angle of <90°.

2. The engine air filter according to claim 1, characterized in that: The lower housing is provided with an air outlet, which is connected to the filter unit.

3. The engine air filter according to claim 2, characterized in that: The lower housing is also provided with an air inlet, which is connected to the filter unit.

4. The engine air filter according to claim 3, characterized in that: The air inlet is located at the far end of the air outlet.

5. The engine air filter according to claim 4, characterized in that: Both the upper and lower shells are provided with mounting parts, which are detachably fastened together to form a receiving cavity.

6. The engine air filter according to any one of claims 1-5, characterized in that: The lower housing is provided with a retaining part, which can just confine the filter unit inside the lower housing.

7. An intake system, characterized in that: Includes an engine air filter as described in any one of claims 1-6; a bracket is provided on the engine air filter.

8. The intake system according to claim 7, characterized in that: The bracket is flexibly mounted on the lower housing.

9. The intake system according to claim 8, characterized in that: A buffer is provided between the bracket and the lower housing.

10. The intake system according to any one of claims 7-9, characterized in that: The engine air filter is tilted relative to the horizontal plane by means of a bracket.

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