Air cleaner and three-wheeled motorcycle thereof
By setting a baffle to separate the air intake chamber and the filter chamber in the air filter, and using the air guide gap to separate dust and water mist, the problem of easy clogging and failure of the filter element is solved, and the safety of the filter element and the service life are extended.
Patent Information
- Application Number
- CN202521758203.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-15
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-08-15
AI Technical Summary
In the existing technology, after the air enters the air filter cavity, it comes into direct contact with the filter element, which makes the filter element easy to be quickly clogged by dust or fail after being attached by water mist carried in the air.
The air filter housing is divided into an air intake chamber and a filter chamber by a partition. The dust and water mist are initially separated by the air guide gap. The dust and water mist are collected in the air intake chamber, and the separated air enters the filter chamber through the air guide gap and is filtered by the filter element.
This improves the safety and lifespan of the filter element, ensuring relatively clean air enters the engine and extending its service life.
Smart Images

Figure CN224679600U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of three-wheeled motorcycle technology, specifically to an air filter and a three-wheeled motorcycle thereof. Background Technology
[0002] During operation, the engine of a three-wheeled motorcycle draws in a large amount of air. If the air is not filtered, the dust suspended in the air will be drawn into the cylinder, which will accelerate the wear of the piston assembly and cylinder. Larger particles entering between the piston and cylinder will cause serious "cylinder scoring".
[0003] Currently, an air filter is generally installed at the air intake of a three-wheeled motorcycle engine to filter dust and other suspended particles in the air. The air filter includes an air filter chamber and a filter element disposed within the air filter chamber. When air enters the air filter chamber, it comes into direct contact with the filter element, which makes the filter element easily clogged by dust in the air or rendered ineffective by water mist carried in the air. Utility Model Content
[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide an air filter and its three-wheeled motorcycle to solve the problem that in the existing technology, after the air enters the air filter cavity, it directly contacts the filter element, which causes the filter element to be easily blocked by dust in the air or to fail after being attached by water mist carried in the air.
[0005] To achieve the above objectives, the first aspect of this utility model adopts the following technical solution: an air filter, including a housing, wherein an air inlet chamber and a filter chamber are formed inside the housing by a partition, the air inlet chamber is provided with an air inlet, the filter chamber is provided with an air outlet, and a filter element is provided inside the filter chamber.
[0006] The partition has an air guide slit that connects the air intake chamber and the filter chamber.
[0007] The second aspect of this utility model adopts the following technical solution: a three-wheeled motorcycle, including an air filter as described in the first aspect of this utility model.
[0008] Compared with the prior art, the present invention has the following beneficial effects:
[0009] The air filter in this three-wheeled motorcycle uses a partition to divide the housing into an intake chamber and a filter chamber. Air enters the intake chamber through the air inlet, and the partition separates dust and water mist carried in the air to a certain extent. The dust and water mist are collected in the intake chamber, and the separated air passes through the air guide gaps into the filter chamber, passes through the filter element, and is then introduced into the engine of the three-wheeled motorcycle for use. This makes the air entering the filter element relatively clean, making the use of the filter element safer and extending its service life. Attached Figure Description
[0010] Figure 1 This is a schematic diagram of the structure of an air filter according to one embodiment of the present invention;
[0011] Figure 2 for Figure 1 partial cross-section Figure 1 ;
[0012] Figure 3 for Figure 1 partial cross-section Figure 2 ;
[0013] Figure 4 for Figure 3 A partial structural diagram;
[0014] Figure 5 for Figure 4 A magnified view of part A in the middle.
[0015] The reference numerals in the accompanying drawings include: housing 1, partition 2, partition section 21, air guide gap 22, reinforcing strip 23, air inlet chamber 3, filter chamber 4, filter element 5, air inlet head 6, hose 7, drain inspection one-way port 8, sealing plug 9, condensate rib 10. Detailed Implementation
[0016] The present invention will be further described in detail below through specific embodiments:
[0017] Because air enters the air filter cavity and comes into direct contact with filter element 5, filter element 5 is easily clogged by dust in the air or becomes ineffective due to the adhesion of water mist carried in the air. To solve this problem, such as... Figures 1-5 As shown in the figure, this utility model embodiment proposes an air filter, including a housing 1. The housing 1 is divided into an air inlet chamber 3 and a filter chamber 4 by a partition 2. The air inlet chamber 3 is provided with an air inlet, and the filter chamber 4 is provided with an air outlet. The filter chamber 4 is provided with a filter element 5. An air guide gap 22 is formed on the partition 2 to connect the air inlet chamber 3 and the filter chamber 4.
[0018] This air filter uses a baffle 2 to divide the housing 1 into an intake chamber 3 and a filter chamber 4. Air enters the intake chamber 3 through the air inlet. The baffle 2 separates the dust and water mist in the air to a certain extent, and the dust and water mist are collected in the intake chamber 3. The separated air passes through the air guide gap 22 into the filter chamber 4, passes through the filter element 5, and is then introduced into the engine of the three-wheeled motorcycle for use. This makes the air before entering the filter element 5 relatively clean, and the use of the filter element 5 is safer and has a longer service life.
[0019] like Figures 1-4As shown, according to another embodiment of the present invention, in an air filter, an air inlet head 6 is rotatably connected to the air inlet. This design allows the air inlet head 6 to be rotated as needed during use, thereby adjusting the air intake direction. Alternatively, the air inlet head 6 can be omitted, and an external pipe can be detachably connected to the air inlet to draw air in from the outside; the external pipe can be connected to the air inlet using existing snap-fit structures or the like. In this embodiment, it is preferable that the air inlet head 6 is rotatably connected to the air inlet.
[0020] The air outlet is connected to a hose 7 for connecting to the engine of the three-wheeled motorcycle, so as to introduce air filtered by the air filter into the engine.
[0021] like Figures 1-4 As shown, according to another embodiment of the present invention, the air filter has an air inlet and an air outlet located on the same side of the housing 1. Specifically, in this embodiment, the air inlet head 6 and the hose 7 are located on the same side of the housing 1. After the air filter is connected to the engine, the air inlet head 6 is located between the housing 1 and the engine. When the tricycle is running, the engine can block some dust and water sprayed from the tires from entering the air intake chamber 3 through the air inlet head 6, making the air entering the air filter relatively clean.
[0022] like Figure 2 , Figure 4 as well as Figure 5 As shown, according to another embodiment of the present invention, the air filter wherein the baffle 2 is formed by the cooperation of at least two baffle 2 segments arranged in a plane, and a certain distance is left between adjacent baffle 2 segments to form the air guide gap 22.
[0023] The number of partition 2 segments can be adjusted according to actual needs. In this embodiment, the partition 2 is formed by two partition 2 segments working together, with a certain distance reserved between the two partition 2 segments to form the air guide gap 22, thus simplifying the structure of the partition 2. The air guide gap 22 is arranged vertically, and the distance between the two partition 2 segments can be 1mm, 2mm, 3mm, 4mm, or 5mm, etc., and can be adjusted according to actual needs.
[0024] The air guide slit 22 is arranged facing the air intake side. In this embodiment, the air guide slit 22 is arranged facing the air intake side by designing the length of the baffle 2 segment facing the air intake side to be shorter than the length of the other baffle 2 segment. Specifically, the length of the baffle 2 segment facing the air intake side is 1 / 3, 1 / 4, or 1 / 5 of the length of the other baffle 2 segment, etc., which can be reasonably adjusted according to the actual situation. The purpose of this design is to make the path of air entering the filter chamber 4, passing through the filter element 5, and exiting from the air outlet relatively short, so as to introduce air into the engine at a faster speed.
[0025] To further increase the air extraction speed from this air filter, the air outlet is located on the side of the central axis of the filter chamber 4 facing the air inlet, so as to increase the air extraction speed from this air filter by shortening the air flow path within this air filter.
[0026] Because the length of the baffle 2 section facing the air inlet is relatively short, the connection distance between this baffle 2 section and the housing 1 is relatively low, and the connection stability of this baffle 2 section is relatively weak. In order to improve the structural strength after connection, several spaced reinforcing strips 23 are arranged on both sides of the baffle 2 section facing the air inlet. In this embodiment, the several reinforcing strips 23 on the same side of the baffle 2 section are arranged sequentially from bottom to top at intervals to enhance its structural strength.
[0027] To facilitate the removal of dust and water collected in the intake chamber 3, such as Figures 1-4 As shown, according to another embodiment of the present invention, in an air filter, a drain inspection one-way port 8 is provided in the area where the lowest position is located in the air intake chamber 3, and the drain inspection one-way port 8 is detachably connected to a sealing plug 9 for sealing.
[0028] In this embodiment, after the air filter is installed, the drain inspection port 8 is opened on the bottom side of the inner wall of the air intake chamber 3, facing the air intake. The sealing plug 9 is tightened in the drain inspection port 8 to seal. After the sealing plug 9 is removed from the drain inspection port 8, the dust and water collected in the air intake chamber 3 mix together and can be discharged relatively quickly from the drain inspection port 8. After the discharge is complete, the sealing plug 9 is tightened again in the drain inspection port 8 to seal.
[0029] To facilitate the collection of water mist entering the intake chamber 3 at its bottom, condensation ribs 10 extending from the top to the bottom are formed on the inner wall of the intake chamber 3 facing the air inlet. In this embodiment, multiple condensation ribs 10 are arranged at intervals. When air is introduced into the intake chamber 3 through the air inlet head 6, the air impacts the inner wall of the intake chamber 3 facing the air inlet, and the multiple condensation ribs 10 condense the water mist in the air and guide it to the bottom of the intake chamber 3 for collection.
[0030] Applying the air filter from any of the above embodiments to a three-wheeled motorcycle, according to another embodiment of the present invention, the three-wheeled motorcycle includes an air filter as described in any of the above embodiments; the hose 7 is connected to the engine in the three-wheeled motorcycle.
[0031] When using it:
[0032] Air enters the intake chamber 3 from the intake head 6. As the three-wheeled motorcycle is in motion, the air entering the intake chamber 3 has a certain flow speed. The air hits the inner wall of the intake chamber 3 that is arranged opposite to the air inlet. The water mist carried in the air is condensed by the water condensation rib 10 and guided to the bottom side of the intake chamber 3 for collection. Some of the dust carried in the air will adhere to the inner wall that is arranged opposite to the air inlet and flow with the collected water.
[0033] The air then flows in the reverse direction in the intake chamber 3 and enters the filter chamber 4 through the air guide gap 22. The air guide gap 22 filters the dust entrained in the air. After being filtered by the filter element 5 in the filter chamber 4, the air is discharged into the hose 7 from the air outlet. The air is then introduced into the engine through the hose 7 to provide the air required for the engine to run.
[0034] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. An air filter, comprising a housing, characterized in that, The housing is divided into an air intake chamber and a filter chamber by a partition. The air intake chamber is provided with an air inlet, the filter chamber is provided with an air outlet, and a filter element is provided in the filter chamber. The partition has an air guide slit that connects the air intake chamber and the filter chamber.
2. An air filter according to claim 1, characterized in that, The air inlet and air outlet are located on the same side of the housing.
3. An air filter according to claim 1 or 2, characterized in that, The partition is formed by the cooperation of at least two partition segments arranged in a plane, and a certain distance is left between adjacent partition segments to form the air guide gap.
4. An air filter according to claim 3, characterized in that, The number of partition sections is two, and the air guide gaps are arranged facing the air inlet side.
5. An air filter according to claim 4, characterized in that, Several spaced reinforcing strips are arranged on both sides of the partition section facing the air inlet.
6. An air filter according to claim 1 or 2, characterized in that, A one-way drain inspection port is provided in the area at the lowest position of the air intake chamber, and a sealing plug is detachably connected to the one-way drain inspection port to seal it.
7. An air filter according to claim 6, characterized in that, The inner wall of the air intake chamber, which faces the air intake, has condensation ribs extending from its top side to its bottom side.
8. An air filter according to claim 1 or 2, characterized in that, The air outlet is located on the side of the central axis of the filter chamber facing the air inlet.
9. An air filter according to claim 1 or 2, characterized in that, The air inlet is rotatably connected to an air inlet head or detachably connected to an external pipe.
10. A three-wheeled motorcycle, characterized in that, Includes an air filter as described in any one of claims 1-9.