Air filter

By employing a combination of filter box and filter sponge in the air filter, the problem of insufficient filtration capacity is solved, achieving greater capacity and lower resistance airflow, thereby improving engine efficiency and fuel economy.

CN223894286UActive Publication Date: 2026-02-10GUANGDONG XINMATO LOCOMOTIVE PARTS IND CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520570694.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-02-10
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

Existing air filters have limited filtration capacity, resulting in decreased engine efficiency and greater airflow resistance.

Method used

Design an air filter that uses a combination structure of a filter box and a filter sponge. The filter sponge is filled inside the filter box to increase the filtration capacity, and the air flow resistance is optimized by using an appropriate pore size. The engine intake pipe is connected to the exhaust slot to improve the air flow rate.

Benefits of technology

It increases filter capacity, reduces airflow resistance, improves engine power, and optimizes fuel economy.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223894286U_ABST
    Figure CN223894286U_ABST
Patent Text Reader

Abstract

The utility model provides an air filter which comprises a filter box and a filter sponge, the filter box is provided with an air inlet and an air outlet, a filter cavity is arranged in the filter box, and the filter sponge is arranged in the filter cavity. According to the air filter disclosed by the utility model, the filter cavity is formed in the filter box, and the filter sponge is filled in the filter cavity, namely, the filter sponge is comprehensively mounted in the filter box, so that compared with the existing filter, the filter sponge is larger in volume, can be filled in the filter cavity, is larger in filter capacity, and is more convenient to use according to actual requirements. And the filter sponges with different apertures can be adopted, so that the air circulation resistance is reduced, the defects of the existing product are overcome, and the improvement of the engine power and the optimization of the fuel economy are realized.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

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

[0002] Motorcycles and other motor vehicles have internal combustion engines, which need to be connected to an intake system to supply air to the engine in order to operate. The intake system includes an air filter. Air enters the air filter through the intake port, is filtered by the filter element inside the air filter, and then exits through the air filter outlet before entering the engine.

[0003] Current air filters are generally made of fine sponges bonded together or welded into a three-dimensional shape. The sponge is small, consisting of only a small piece installed at the air outlet, resulting in high filtration resistance and limited filtration capacity. Furthermore, because filtration must be performed within a limited volume, fine sponge pores lead to higher airflow resistance, thus affecting engine output power. Summary of the Invention

[0004] The purpose of this invention is to provide an air filter that addresses the problem of limited filtration capacity in existing air filters, which affects engine efficiency.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An air filter is provided, characterized in that it includes a filter box, a filter sponge, and an engine intake pipe. The filter box has an air inlet and an air outlet. The engine intake pipe is connected to the air outlet. The engine intake pipe has a snap-fit ​​groove that snaps into the air outlet. The filter box has a filter cavity inside. The filter sponge is disposed in the filter cavity. The shape of the filter sponge is adapted to the shape of the filter cavity.

[0007] Optionally, the filter sponge has an air outlet groove on the side near the air outlet, and the engine intake pipe is connected to the air outlet groove.

[0008] Optionally, the filter box includes a box body and a box cover, with the box cover covering the box body to form the filter chamber.

[0009] Optionally, the air intake direction of the air inlet is orthogonal to the air outlet direction of the air outlet.

[0010] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0011] In the air filter provided by this utility model, the filter box is provided with a filter chamber inside, and the filter sponge is filled in the filter chamber. That is, the filter sponge is fully installed inside the filter box. Compared with the existing filters, the filter sponge has a larger volume and can fill the filter chamber, resulting in a larger filtration capacity. According to actual needs, filter sponges with different pore sizes can be used to reduce airflow resistance, make up for the shortcomings of the current products, and achieve the improvement of engine power and the optimization of fuel economy. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of the structure of the air filter of this utility model;

[0014] Figure 2 This is an exploded view of the air filter of this utility model.

[0015] In the diagram: 1. Filter box; 11. Box body; 12. Box cover; 13. Air inlet; 14. Air outlet; 15. Filter chamber; 2. Filter sponge; 21. Air outlet groove; 3. Engine air intake pipe; 31. Snap-fit ​​groove. Detailed Implementation

[0016] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0017] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0018] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature.

[0019] The following is combined with Figure 1 and Figure 2 This invention describes the air filter of the present invention.

[0020] like Figure 1 and Figure 2 As shown, this utility model provides an air filter, including a filter box 1 and a filter sponge 2. The filter box 1 is provided with an air inlet 13 and an air outlet 14. The filter box 1 is provided with a filter chamber 15 inside, and the filter sponge 2 is disposed in the filter chamber 15.

[0021] In the air filter provided in this embodiment, the filter box 1 has a filter chamber 15 inside, and the filter sponge 2 is filled in the filter chamber 15. That is, the filter sponge 2 is fully installed inside the filter box 1. Compared with the existing filter, the filter sponge 2 has a larger volume and can fill the filter chamber 15, resulting in a larger filtration capacity. According to actual needs, filter sponges 2 with different pore sizes can be used to reduce airflow resistance, make up for the shortcomings of the current products, and achieve the improvement of engine power and the optimization of fuel economy.

[0022] In some embodiments, the shape of the filter sponge 2 is adapted to the shape of the filter cavity 15, which can better fill the filter cavity 15 and increase the filtration capacity.

[0023] In some embodiments, the air filter further includes an engine intake pipe 3 connected to an air outlet 14, thereby enabling filtered air to be delivered to the engine.

[0024] In some embodiments, the engine intake pipe 3 is provided with a snap-fit ​​groove 31, which snaps into the air outlet 14, so that the engine intake pipe 3 can be securely connected to the filter box 1.

[0025] In some embodiments, the filter sponge 2 is provided with an air outlet groove 21 on the side near the air outlet 14, and the engine intake pipe 3 is connected to the air outlet groove 21. By providing the air outlet groove 21, the space for air outlet can be better formed. After the air is filtered by the filter sponge 2, it can enter the engine intake pipe 3 more quickly, thereby improving the output power of the engine.

[0026] In some embodiments, the filter box 1 includes a box body 11 and a box cover 12. The box cover 12 covers the box body 11 to form a filter chamber 15, which facilitates the removal of the box cover 12 and the replacement of the filter sponge 2.

[0027] In some embodiments, the air intake direction of the air inlet 13 is orthogonal to the air outlet direction of the air outlet 14, ensuring that the air can completely pass through the filter sponge 2 before entering the engine intake pipe 3, resulting in better filtration.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made using the content of this utility model specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An air filter, characterized in that, The filter includes a filter box (1), a filter sponge (2), and an engine intake pipe (3). The filter box (1) is provided with an air inlet (13) and an air outlet (14). The engine intake pipe (3) is connected to the air outlet (14). The engine intake pipe (3) is provided with a snap-fit ​​groove (31). The snap-fit ​​groove (31) is snapped into the air outlet (14). The filter box (1) is provided with a filter chamber (15). The filter sponge (2) is located in the filter chamber (15). The shape of the filter sponge (2) is adapted to the shape of the filter chamber (15).

2. The air filter according to claim 1, characterized in that, The filter sponge (2) has an air outlet groove (21) on the side near the air outlet (14), and the engine intake pipe (3) is connected to the air outlet groove (21).

3. The air filter according to claim 1, characterized in that, The filter box (1) includes a box body (11) and a box cover (12), the box cover (12) covering the box body (11) to form the filter chamber (15).

4. The air filter according to claim 1, characterized in that, The air intake direction of the air inlet (13) is orthogonal to the air outlet direction of the air outlet (14).