Multi-purpose air filter for automotive engines
The air filter design, which combines air pump backflushing, motor scraper, and heat pipe, solves the problem of filter clogging in textile factories, achieves automatic cleaning and sealing of the filter element, and improves the applicability and air intake of the air filter.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-28
- Publication Date
- 2026-03-13
AI Technical Summary
When existing automotive air filters are used in textile factories, the filter element surface is prone to being covered with a large amount of long fibers generated during textile production, leading to blockage. Furthermore, moisture and oil in the air combine to form a fiber layer, affecting its suitability for use.
A versatile air filter was designed, which uses components such as air pump backflushing, motor-driven scraper and heat pipe heating to achieve automatic cleaning of the filter element and removal of fibers, and maintains the sealing effect through sealing ring.
It effectively cleans the fibers on the filter element, improves the applicability of the air filter in different environments, reduces air viscosity, increases air intake, and ensures a good seal.
Smart Images

Figure CN121007078B_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of automotive parts technology, and more particularly to a versatile air filter for automotive engines. Background Technology
[0002] The air filter for automobiles is a key component of the engine intake system. Its core function is to filter impurities such as dust, pollen, and particulate matter from the air entering the engine, ensuring that the air entering the combustion chamber is clean, thereby protecting the engine, improving performance, and extending its service life. It mainly consists of a housing, an intake pipe, an exhaust pipe, and a filter element.
[0003] When using an air filter, air is typically delivered into the housing through the intake pipe. Then, the filter element inside the housing intercepts dust and impurities adhering to the air on its surface. Finally, the filtered air is delivered into the engine's combustion chamber through the exhaust pipe.
[0004] When air filters are used in special environments, the filter surface often accumulates a large amount of impurities. For example, when used in a car inside a textile factory, the filter surface will be covered with a large number of long fibers generated during the textile production process. The filter needs to be cleaned frequently. Furthermore, when combined with moisture or oil in the air, it will form a fiber layer that can clog the filter, affecting the limitations of the air filter in different environments. Summary of the Invention
[0005] To overcome the above shortcomings, the present invention provides a versatile air filter for automotive engines, which aims to improve the existing technology where, when used in automobiles in textile factories, the filter element surface is covered with a large number of long fibers generated during the textile production process, requiring frequent cleaning of the filter element, and when combined with moisture or oil in the air, it forms a fiber layer that clogs the filter element.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a multi-purpose air filter for automotive engines, comprising a base and a housing.
[0007] The base has a slot 2 at the top center, and a filter screen 2 is inserted into the slot 2.
[0008] Slot 1 is provided on the outer side of the top of the base, and a filter screen 1 is inserted into the slot 1.
[0009] A collection trough is fixedly connected to the outer edge of the top of the base. A plurality of evenly distributed baffles are hinged to one side of the top of the collection trough. A protrusion is fixedly connected to the bottom of the plurality of baffles. A plurality of evenly distributed fixing blocks are fixedly connected to the top of one side of the collection trough.
[0010] Multiple torsion springs are fixedly connected to one side of the fixed block, and one end of each torsion spring passes through the inside of the protrusion.
[0011] A motor is fixedly connected to one side of the bottom end of the base. A lead screw is fixedly connected to the conveying end of the motor. One end of the lead screw passes through the base and the collection trough in sequence and is threadedly connected to a scraper. The scraper is sleeved on the outer side of the filter screen.
[0012] An auxiliary part is installed on the top of the base.
[0013] As a further description of the above technical solution:
[0014] The auxiliary part includes an air outlet slot, which is fixedly connected to the top of the base. The air outlet slot is disposed between filter screen one and filter screen two. A pipe is connected to one side of the bottom of the air outlet slot. One end of the pipe passes through the base and is connected to an air pump. An interception net is fixedly connected to the end of the pipe away from the air outlet slot.
[0015] As a further description of the above technical solution:
[0016] The auxiliary part also includes a heat-conducting pipe, which is fixedly connected to one side of the bottom of the air outlet slot, and the other end of the heat-conducting pipe passes through the base.
[0017] As a further description of the above technical solution:
[0018] The base has an air outlet pipe connected to the middle of its bottom end, and one end of the air outlet pipe is connected to a valve.
[0019] As a further description of the above technical solution:
[0020] The outer shell is fitted onto the outside of the base, and a top plate is provided at the top of the outer shell.
[0021] As a further description of the above technical solution:
[0022] A second sealing ring is provided at the top of one end of the filter screen. One end of the second sealing ring is fixedly connected to the bottom end of the top plate. A first sealing ring is provided at the top of the second filter screen. The top end of the first sealing ring is fixedly connected to the outer side of the bottom end of the top plate.
[0023] As a further description of the above technical solution:
[0024] A conveying pipe is connected to the top of one side of the outer shell. One end of the conveying pipe is respectively sealed with a first sealing ring and a second sealing ring. A valve is connected to the outer side of the middle part of the conveying pipe.
[0025] As a further description of the above technical solution:
[0026] The bottom of the outer casing has fixing holes on both sides, and screws are threaded into the two fixing holes. The other ends of the two screws are threaded into the two sides of the base, respectively.
[0027] As a further description of the above technical solution:
[0028] Both sides of the top plate are fixedly connected to extension plates, and bolts are threaded inside the two extension plates. One end of each bolt is threaded to the front and rear sides of the top of the outer shell, respectively.
[0029] As a further description of the above technical solution:
[0030] An air intake pipe is connected to one side of the outer casing.
[0031] The present invention has the following beneficial effects:
[0032] In this invention, 1. Air is blown out from the air outlet through the cooperation of an air pump and a pipeline, which blows the fibers on the filter screen outward. Then, the scraper moves downward through the cooperation of a motor and a lead screw to scrape off the fibers attached to the filter screen. The scraper pushes open the baffle on the collection tank, allowing the fibers on the scraper to enter the collection tank. This achieves the cleaning and storage of the fibers on the surface of the filter screen, making the air filter suitable for different environments and improving the applicability of the air filter.
[0033] 2. The heat generated by the engine is transferred to the air outlet through the heat pipe to heat the air in the air outlet, so that the air can dry the fibers, shrink the fibers and make it easier for the fibers to fall off the outside of the filter screen one. The air can also heat the filter screen one and the filter screen two, which can reduce the viscosity of the air entering the shell, reduce the pressure drop of the airflow through the filter screen one and the filter screen two, and increase the intake volume.
[0034] 3. After the air inside the air outlet duct has cleaned the filter screen one, some air will enter the interior of sealing ring one and sealing ring two through the delivery pipe, causing sealing ring one and sealing ring two to expand, ensuring the sealing effect of sealing ring one and sealing ring two on filter screen two and between filter screen one and the top plate. Attached Figure Description
[0035] Figure 1 This is a perspective view of the multi-applicable air filter for automotive engines proposed in this invention;
[0036] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0037] Figure 3 This is a schematic diagram of the housing of the multi-purpose air filter for automobile engines proposed in this invention;
[0038] Figure 4 This is a cross-sectional view of the collection tank of the multi-applicable air filter for automobile engines proposed in this invention;
[0039] Figure 5 for Figure 4 Enlarged view of point B in the middle;
[0040] Figure 6 This is a cross-sectional view of the filter screen of the multi-purpose air filter for automobile engines proposed in this invention.
[0041] Figure 7 This is a cross-sectional view of the housing of the multi-purpose air filter for automotive engines proposed in this invention;
[0042] Figure 8 This is a schematic diagram of the delivery pipe of the multi-applicable air filter for automobile engines proposed in this invention;
[0043] Figure 9 This is a cross-sectional view of the base of the multi-purpose air filter for automobile engines proposed in this invention.
[0044] Legend:
[0045] 1. Outer shell; 2. Bolt; 3. Extension plate; 4. Top plate; 5. Inlet pipe; 6. Screw; 7. Pipe; 8. Air pump; 9. Interception net; 10. Outlet pipe; 11. Motor; 12. Heat conduction pipe; 13. Valve 1; 14. Delivery pipe; 15. Collection tank; 16. Baffle; 17. Fixing hole; 18. Filter 1; 19. Sealing ring 1; 20. Sealing ring 2; 21. Scraper; 22. Lead screw; 23. Fixing block; 24. Torsion spring; 25. Protrusion; 26. Air outlet slot; 27. Filter 2; 28. Slot 1; 29. Slot 2; 30. Base; 31. Valve 2. Detailed Implementation
[0046] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0047] Example 1:
[0048] Reference Figure 1 , Figure 6 , Figure 7 and Figure 9An embodiment of the present invention provides a multi-purpose air filter for automobile engines, comprising a base 30 and a housing 1. The housing 1 is sleeved on the outside of the base 30. A top plate 4 is provided at the top of the housing 1. A slot 29 is provided in the middle of the top of the base 30. A filter screen 27 is inserted into the slot 29. A slot 28 is provided on the outside of the top of the base 30. A filter screen 18 is inserted into the slot 18. An air outlet slot 26 is fixedly connected to the top of the base 30. The air outlet slot 26 is located between the filter screen 18 and the filter screen 27. A pipe 7 is connected to one side of the bottom of the air outlet slot 26. One end of the pipe 7 passes through the base 30 and is connected to an air pump 8. An intercepting net 9 is fixedly connected to the end of the pipe 7 away from the air outlet slot 26.
[0049] The air pump 8 is started to deliver outside air through the pipe 7 into the air outlet slot 26. The air is then sprayed out from the inside of the filter screen 18 to the outside of the filter screen 18 to back-blow the filter screen 18 and perform preliminary cleaning of the fibers attached to the outside of the filter screen 18.
[0050] Meanwhile, the interception net 9 fixed at one end of the pipe 7 can intercept and filter the dust and impurities attached to the air entering the air outlet slot 26, thereby preventing dust and impurities from entering the air outlet slot 26 together.
[0051] A heat-conducting pipe 12 is fixedly connected to one side of the bottom of the air outlet slot 26, and the other end of the heat-conducting pipe 12 passes through the base 30.
[0052] The heat pipe 12 is connected to the outside of the engine away from the air outlet slot 26. The heat generated by the engine is transferred to the air outlet slot 26 through the heat pipe 12 to heat the air in the air outlet slot 26. This allows the air to evaporate the water vapor absorbed inside the fiber when it blows the fiber, causing the fiber to shrink and making it easier for the fiber to fall off the outside of the filter screen 18.
[0053] In cold regions, the hot air blown out by the air outlet 26 can also heat the outer casing 1, filter screen 18, and filter screen 27, thereby heating the air entering the outer casing 1, reducing air viscosity, reducing the pressure drop of airflow through filter screen 18 and filter screen 27, and increasing the intake volume.
[0054] Reference Figure 3 , Figure 4 and Figure 5A collection trough 15 is fixedly connected to the outer edge of the top of the base 30. Multiple evenly distributed baffles 16 are hinged to one side of the top of the collection trough 15. Protrusions 25 are fixedly connected to the bottom of the multiple baffles 16. Multiple evenly distributed fixing blocks 23 are fixedly connected to the top of one side of the collection trough 15. Torsion springs 24 are fixedly connected to one side of each of the multiple fixing blocks 23. One end of each of the multiple torsion springs 24 passes through the inside of the protrusions 25. A motor 11 is fixedly connected to one side of the bottom of the base 30. A lead screw 22 is fixedly connected to the drive end of the motor 11. One end of the lead screw 22 passes through the base 30 and the collection trough 15 in sequence and is threadedly connected to a scraper 21. The scraper 21 is sleeved on the outside of the filter screen 18.
[0055] When the motor 11 starts, it drives the lead screw 22 to rotate. As the lead screw 22 rotates, it pushes the scraper 21 downward, allowing the scraper 21 to scrape and clean the fibers attached to the outside of the filter screen 18. When the scraper 21 has finished cleaning the filter screen 18 and moved to the bottom of the filter screen 18, the motor 11 continues to drive the lead screw 22 to rotate, which in turn causes the scraper 21 to continue to move downward and push the baffle 16 to flip downward, thereby opening the collection tank 15. This allows the fibers below the scraper 21 to be pressed into the collection tank 15 for storage. Then, the motor 11 rotates in the opposite direction, causing the lead screw 22 to rotate in the opposite direction, which causes the scraper 21 to move upward and reset. When the scraper 21 leaves the collection tank 15, the torsion spring 24 pushes the baffle 16 to rotate upward and reset, thereby sealing and collecting the fibers in the collection tank 15. Because the scraper 21 compresses the fibers when it pushes them into the collection tank 15, the fibers adhere tightly to the bottom of the collection tank 15. At this time, when the baffle 16 rotates upward, it will not touch the fibers and carry them out.
[0056] Example 2:
[0057] Reference Figure 1 , Figure 3 and Figure 7 Fixing holes 17 are provided on both sides of the bottom end of the outer shell 1. Screws 6 are threaded inside the two fixing holes 17. The other ends of the two screws 6 are threaded to the two sides of the base 30 respectively. Extension plates 3 are fixedly connected to both sides of the top plate 4. Bolts 2 are threaded inside the two extension plates 3. One end of the two bolts 2 is threaded to the front and rear sides of the top of the outer shell 1 respectively.
[0058] The outer shell 1 is attached to the outside of the base 30 and the screw 6 is inserted into the fixing hole 17. One end of the screw 6 is inserted into the base 30 and then the screw 6 is tightened to connect the outer shell 1 and the base 30. Then the top plate 4 is placed on the top of the outer shell 1 and the bolt 2 is passed through the extension plate 3 and inserted into the outer shell 1. Then the bolt 2 is tightened to fix the top plate 4 to the top of the outer shell 1.
[0059] Reference Figure 1 and Figure 3The bottom center of the base 30 is connected to an air outlet pipe 10, one end of which is connected to a valve 2 31, and one side of the outer shell 1 is connected to an air inlet pipe 5.
[0060] Air is delivered into the housing 1 through the intake pipe 5, and then the dust and fibers attached to the air are intercepted and filtered by the filter screen 18 and the filter screen 27 in sequence. After the air is filtered, the air can be discharged from the housing 1 through the exhaust pipe 10 and delivered into the engine.
[0061] When the air in the air outlet slot 26 cleans the filter screen 18, the air outlet pipe 10 can be sealed by the valve 2 31, so that the air inside the air outlet slot 26 can only flow to the outside of the filter screen 18.
[0062] Example 3:
[0063] Reference Figure 3 and Figure 7 A sealing ring 20 is provided at the top end of filter screen 18. One end of sealing ring 20 is fixedly connected to the bottom end of top plate 4. A sealing ring 19 is provided at the top end of filter screen 27. The top end of sealing ring 19 is fixedly connected to the outer side of the bottom end of top plate 4.
[0064] When the top plate 4 is fixed to the top of the outer casing 1, the sealing ring 19 and the sealing ring 20 can seal the gap between the top of the filter screen 27 and the filter screen 18 and the top plate 4, thereby preventing air in the outer casing 1 that has not been filtered by the filter screen 18 and the filter screen 27 from passing through the gap between the top of the filter screen 18 and the filter screen 27 and the top plate 4.
[0065] Reference Figure 1 , Figure 2 , Figure 3 and Figure 8 The top of one side of the outer casing 1 is connected to a conveying pipe 14. One end of the conveying pipe 14 is respectively sealed with a first sealing ring 19 and a second sealing ring 20. The outer side of the middle part of the conveying pipe 14 is connected to a valve 13.
[0066] When sealing ring 19 and sealing ring 20 wear down due to prolonged use, resulting in a decrease in sealing effect, some air inside the air outlet slot 26 will enter the interior of sealing ring 19 and sealing ring 20 through the delivery pipe 14 after cleaning filter screen 18. This causes sealing ring 19 and sealing ring 20 to expand, allowing them to fill the gaps between filter screen 27 and filter screen 18 and the top plate 4, thus ensuring the sealing effect of sealing ring 19 and sealing ring 20. The delivery pipe 14 can be sealed by valve 13 to prevent air leakage inside sealing ring 19 and sealing ring 20.
[0067] Working principle: Air is delivered into the housing 1 through the intake pipe 5, and then filtered by filter screen 18 and filter screen 27 to intercept and filter dust and fibers adhering to the air. After filtration, the air is discharged from the housing 1 through the exhaust pipe 10 and delivered to the engine. The air pump 8 and the pipe 7 work together to deliver the air into the air outlet slot 26 and spray it to back-blow the filter screen 18, thus initially cleaning the fibers adhering to the outside of the filter screen 18. Then, the motor 11 and the lead screw 22 work together to move the scraper 21 downward, scraping off the fibers adhering to the outside of the filter screen 18. The scraper 21 also pushes the baffle 16 downward, opening the collection tank 15 and pressing the cleaned fibers into the collection tank 15. The storage is achieved by rotating the baffle 16 downwards, which can push the fibers stored inside the collection tank 15 to one side of the collection tank 15. When it is necessary to clean the collection tank 15, the screw 6 can be rotated to remove the screw 6 from the fixing hole 17. Then, the base 30 can be removed from the outer shell 1 so that the staff can clean the fibers in the collection tank 15. After the air inside the air outlet duct 26 cleans the filter screen 18, some air will enter the sealing ring 19 and sealing ring 20 through the delivery pipe 14, which will cause the sealing ring 19 and sealing ring 20 to expand. This will allow the sealing ring 19 and sealing ring 20 to fill the gap between the filter screen 27 and the filter screen 18 and the top plate 4, thus ensuring the sealing effect of the sealing ring 19 and sealing ring 20.
[0068] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A multi-purpose air cleaner for automotive engines, characterized by: It includes base (30) and shell (1), The middle of the top of the base (30) is provided with a slot two (29), and the inside of the slot two (29) is inserted with a filter screen two (27); The top of the outside of the base (30) is provided with a slot one (28), and the inside of the slot one (28) is inserted with a filter screen one (18); The top of the outside edge of the base (30) is fixedly connected with a collecting groove (15), and the top of one side of the collecting groove (15) is hingedly connected with a plurality of evenly distributed baffles (16), and the bottom of the plurality of baffles (16) is fixedly connected with a protrusion (25), and the top of one side of the collecting groove (15) is fixedly connected with a plurality of evenly distributed fixed blocks (23); A plurality of torsion springs (24) are fixedly connected on one side of the fixed block (23), and one end of the plurality of torsion springs (24) penetrates into the inside of the protrusion (25). A motor (11) is fixedly connected on one side of the bottom of the base (30), and the conveying end of the motor (11) is fixedly connected with a lead screw (22), one end of the lead screw (22) penetrates through the base (30) and the collecting groove (15) in sequence and is threadedly connected with a scraper (21), and the scraper (21) is sleeved on the outside of the filter screen one (18); An auxiliary part is installed on the top of the base (30); The auxiliary part includes an air outlet groove (26) fixedly connected on the top of the base (30), the air outlet groove (26) is arranged between the filter screen one (18) and the filter screen two (27), one side of the bottom of the air outlet groove (26) is communicated with a pipeline (7), one end of the pipeline (7) penetrates through the base (30) and is communicated with an air pump (8), and one end of the pipeline (7) away from the air outlet groove (26) is fixedly connected with a blocking net (9). The auxiliary part further includes a heat conducting pipe (12) fixedly connected on one side of the bottom of the air outlet groove (26), and the other end of the heat conducting pipe (12) penetrates through the base (30).
2. The multi-purpose air cleaner for an automobile engine according to claim 1, characterized by: The bottom of the base (30) is communicated with an air outlet pipe (10), and one end of the air outlet pipe (10) is communicated with a valve two (31).
3. The multi-purpose air cleaner for automotive engine according to claim 1, characterized by: The shell (1) is sleeved on the outside of the base (30), and the top of the shell (1) is provided with a top plate (4).
4. The multi-purpose air cleaner for automotive engine according to claim 3, characterized in that: The top of the filter screen one (18) is provided with a sealing ring two (20), one end of the sealing ring two (20) is fixedly connected on the bottom of the top plate (4), the top of the filter screen two (27) is provided with a sealing ring one (19), and the top of the sealing ring one (19) is fixedly connected on the outside of the bottom of the top plate (4).
5. The multi-purpose air cleaner for automotive engine according to claim 1, characterized in that: One side of the top of the shell (1) is communicated with a conveying pipe (14), one end of the conveying pipe (14) is respectively sealed with the sealing ring one (19) and the sealing ring two (20), and the middle of the outside of the conveying pipe (14) is communicated with a valve one (13).
6. The multi-purpose air cleaner for automotive engine according to claim 1, characterized in that: The bottom of the shell (1) is provided with a fixed hole (17) on both sides, and the inside of the two fixed holes (17) is threadedly connected with a screw (6), and the other end of the two screws (6) is respectively threadedly connected on both sides of the base (30).
7. The multi-purpose air cleaner for automotive engine according to claim 3, characterized in that: Both sides of the top plate (4) are fixedly connected with extension plates (3), both of the extension plates (3) are internally threadedly connected with bolts (2), and one end of the two bolts (2) is respectively threadedly connected to the top front and rear sides of the shell (1).
8. The multi-purpose air cleaner for automotive engine according to claim 1, characterized in that: One side of the shell (1) is communicated with an air inlet pipe (5).
Citation Information
Patent Citations
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