A kind of porous ceramic filter element air filter for automobile engine

Abstract

The utility model discloses a kind of porous ceramic filter element air cleaner for automobile engine, including filter main body, it has the cover body part of cylindrical filter cartridge part and top, interface structure is equipped in cover body part both sides, the porous ceramic filter element of radially uniform distribution is loaded in filter cartridge part, its outside side is adapted with filter cartridge part, inside side cooperates the elastic component in cover body part. Cover body part is equipped with the adjusting groove of penetration, there is first through-hole, second through-hole and the adjusting plate with convex ring in groove, adjusting plate is connected with elastic component. Through elastic component with the adjusting plate movement driven by air intake pressure, switching through-hole opening state, balance the filtering efficiency and air intake under different working conditions, improve engine air intake stability.

Description

Technical Field

[0001] This utility model provides an air filter, and particularly relates to a porous ceramic filter air filter for automobile engines. Background Technology

[0002] The air filter for a car engine is a key component that ensures clean and stable air intake for the engine. Its function is to filter impurities in the air to prevent engine wear, while also adapting to the intake requirements under different operating conditions.

[0003] Most existing air filters use a single filter element structure, basically consisting of a filter cartridge and an end cap. A conventional filter element is housed inside the cartridge, and the end cap connects to the intake pipe. However, this structure has significant shortcomings: Firstly, the fixed filtration area and layout of the conventional filter element make it difficult to balance high-efficiency filtration and flexible intake volume adjustment. Facing different engine operating conditions (such as idling and high load), it cannot dynamically adapt to intake demands, easily leading to poor filtration or high intake resistance. Secondly, it lacks a mechanism for automatically adjusting the intake path based on intake pressure. The end cap's internal channels and adjustment components are missing, preventing changes in connectivity with pressure variations. This makes it difficult to balance intake stability and filtration efficiency during operating condition switching, failing to meet the engine's demand for precise intake control and impacting engine performance and reliability. Utility Model Content

[0004] In order to solve the above problems, this application provides a porous ceramic filter air filter for automobile engines, which solves the problems that existing devices cannot dynamically adapt to operating conditions and cannot balance filtration and air intake.

[0005] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a porous ceramic filter for automobile engines, comprising a filter body, wherein the filter body has a columnar filter cartridge and a cover portion connected to the top of the filter cartridge, and the cover portion has interface structures for connection on both sides; a porous ceramic filter is correspondingly installed inside the filter cartridge.

[0006] Preferably, the filter cartridge is provided with a porous ceramic filter element, which is arranged radially and its top end is adapted to the internal structure of the cover body.

[0007] Preferably, the cover body is provided with an elastic component, which is located in the middle region inside the cover body and corresponds to the top of the porous ceramic filter element.

[0008] Preferably, the cover body has an adjustment groove that penetrates itself inside, and the side of the adjustment groove near the filter cylinder has a first through hole and a second through hole that communicate with the adjustment groove and the filter cylinder, respectively.

[0009] The interface structure is located inside the openings at both ends of the adjustment groove.

[0010] Preferably, an adjustment plate is adapted to be provided inside the adjustment groove, and the adjustment plate and the elastic component are fixedly connected; the adjustment plate is located above the center of the porous ceramic filter element, the first through hole is located below the adjustment plate, and the second through hole is located on the side of the adjustment plate away from the elastic component.

[0011] Preferably, the adjusting groove is provided with a protruding ring that engages with the adjusting plate, and the adjusting plate is located between the first through hole and the second through hole.

[0012] Preferably, the radial structure of the porous ceramic filter element is uniformly distributed, its outer wall is adapted to the inner wall of the filter cartridge, and its inner side is engaged with the elastic component in the cover body.

[0013] One or more technical solutions provided in the embodiments of this application have at least the following technical effects or advantages compared with the prior art:

[0014] This device primarily addresses the problem of existing automotive engine air filters struggling to balance filtration efficiency and intake volume adjustment, as well as their inability to automatically adapt to different filtration paths based on intake pressure. It achieves this by incorporating an elastic component, adjustment groove, first through-hole, second through-hole, convex ring, and adjustment plate within the cover body. Specifically, the porous ceramic filter element employs a radially uniformly distributed structure. Its outer wall adapts to the inner wall of the filter cartridge, and its inner wall engages with the elastic component, providing a high-efficiency filtration area. When the engine intake pressure changes, the elastic component expands and contracts, causing the fixedly connected adjustment plate to move within the adjustment groove. The convex ring engages with and limits the adjustment plate, allowing it to switch positions between the first and second through-holes, thereby opening or closing different through-holes. This achieves automatic adjustment of the intake path based on pressure, balancing filtration efficiency and intake volume requirements.

[0015] Other advantages, objectives and features of this invention will be set forth in part in the description which follows, and in part will be apparent to those skilled in the art from the following examination or study, or may be taught from the practice of this invention. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of a porous ceramic filter element air filter for automobile engines according to the present invention;

[0017] Figure 2 This is a cross-sectional view of a porous ceramic filter element air filter for automobile engines according to this utility model;

[0018] Figure 3 This is an exploded view of the adjusting plate portion of a porous ceramic filter air filter for automotive engines according to this utility model.

[0019] As shown in the figure:

[0020] 1. Filter body; 2. Filter cartridge; 3. Cover; 4. Interface structure; 5. Porous ceramic filter element; 6. Elastic component; 7. Adjustment groove; 8. First through hole; 9. Second through hole; 10. Protruding ring; 11. Adjustment plate. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that the terms "vertical," "horizontal," "up," "down," "left," "right," and similar expressions used in this article are for illustrative purposes only and do not represent the only possible implementation.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains; the terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention; the term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0024] like Figure 1 and Figure 2 As shown, an air filter with a porous ceramic filter element for an automotive engine includes a filter body 1. The filter body 1 has a columnar filter cartridge 2 and a cover 3 connected to the top of the filter cartridge 2. The cover 3 has interface structures 4 on both sides for connection. A porous ceramic filter element 5 is installed inside the filter cartridge 2. The porous ceramic filter element 5 is arranged radially and its top end is adapted to the internal structure of the cover 3. The radial structure of the porous ceramic filter element 5 is evenly distributed. Its outer side wall is adapted to the inner side wall of the filter cartridge 2, and its inner side is matched with the components inside the cover 3.

[0025] In this embodiment, the elastic component 6 inside the cover part 3 is located in the middle area and corresponds to the top of the porous ceramic filter element 5. An adjustment groove 7 is provided through the inside of the cover part 3. The side of the adjustment groove 7 near the filter cylinder part 2 is provided with a first through hole 8 and a second through hole 9 that communicate with the adjustment groove 7 and the filter cylinder part 2. The interface structure 4 is located in the openings at both ends of the adjustment groove 7. The adjustment plate 11 inside the adjustment groove 7 is fixedly connected to the elastic component 6 and is located above the center of the porous ceramic filter element 5. The first through hole 8 is below the adjustment plate 11, and the second through hole 9 is on the side of the adjustment plate 11 away from the elastic component 6. The protruding ring 10 inside the adjustment groove 7 is engaged with the adjustment plate 11. The adjustment plate 11 is located between the first through hole 8 and the second through hole 9. From the perspective of implementation, the radially evenly distributed porous ceramic filter element 5 is adapted to the inner wall of the filter cartridge 2, maximizing the use of the filtration area to improve filtration efficiency. The linkage between the elastic component 6 and the adjusting plate 11, combined with the limiting effect of the convex ring 10, can precisely switch the opening state of the first through hole 8 and the second through hole 9 according to the intake pressure, ensuring efficient filtration through the first through hole 8 under low load and increasing the intake volume through the second through hole 9 under high load. In terms of innovation, the coordinated structure solves the problem that existing devices cannot dynamically balance filtration efficiency and intake volume. The layout of the porous ceramic filter element 5 ensures the filtration effect, and the elastic adjustment structure enables adaptive operation under working conditions, improving the engine intake stability and overall performance.

[0026] like Figure 2 and Figure 3 As shown, the cover portion 3 is provided with an elastic component 6, which is located in the middle area inside the cover portion 3 and corresponds to the top of the porous ceramic filter element 5. The cover portion 3 is provided with an adjustment groove 7 that penetrates itself. The adjustment groove 7 is provided with a first through hole 8 and a second through hole 9 that communicate with the adjustment groove 7 and the filter element 2 on the side near the filter element 2. The interface structure 4 is located in the openings at both ends of the adjustment groove 7. An adjustment plate 11 is adapted to be provided inside the adjustment groove 7. The adjustment plate 11 is fixedly connected to the elastic component 6 and is located above the center of the porous ceramic filter element 5. The first through hole 8 is located below the adjustment plate 11, and the second through hole 9 is located on the side of the adjustment plate 11 away from the elastic component 6. The adjustment groove 7 is provided with a protruding ring 10 that engages with the adjustment plate 11. The adjustment plate 11 is located between the first through hole 8 and the second through hole 9.

[0027] In this embodiment, one end of the elastic member 6 corresponds to the top of the porous ceramic filter element 5, and the other end is fixedly connected to the adjusting plate 11, so that the adjusting plate 11 can move in the adjusting groove 7 as the elastic member 6 deforms; the adjusting groove 7 penetrates the cover part 3, and the interface structure 4 at both ends of its opening can be connected to the external pipeline; the first through hole 8 and the second through hole 9 are respectively located below the adjusting plate 11 and on the side away from the elastic member 6, and both connect the adjusting groove 7 and the filter cylinder part 2; the convex ring 10 restricts the movement range of the adjusting plate 11 in the adjusting groove 7. From the perspective of implementation, this structural design allows the elastic component 6 to respond sensitively to changes in intake pressure. By switching the position of the adjusting plate 11, different through holes can be opened and closed, ensuring smooth air path switching when changing operating conditions. In terms of innovation, the cooperation of each component solves the problem of fixed intake path in existing devices. The elasticity of the elastic component 6 combined with the position control of the adjusting plate 11 ensures the filtration accuracy of the first through hole 8 under low load and increases the intake volume of the second through hole 9 under high load, thereby improving the adaptability of the device to different operating conditions and enhancing the stability of engine operation.

[0028] It should be noted that when the engine is under low load and the intake pressure is low, the elastic component 6 does not deform significantly, causing the adjusting plate 11 to be positioned close to the first through hole 8. At this time, the first through hole 8 is open, and the air is fully filtered by the radially evenly distributed porous ceramic filter element 5 in the filter cartridge 2, and then enters the adjusting groove 7 through the first through hole 8 and enters the engine through the interface structure 4, ensuring high cleanliness of the intake air. When the engine is under high load and the intake pressure increases, the elastic component 6 deforms under pressure, causing the adjusting plate 11 to move away from the first through hole 8 and engage with the convex ring 10 for limitation. At this time, the second through hole 9 is open, and in addition to being filtered by the porous ceramic filter element 5, the air can also form an auxiliary intake channel through the second through hole 9, increasing the intake volume to meet the high load requirements of the engine, and achieving a dynamic balance between filtration efficiency and intake volume under different operating conditions.

[0029] In actual use, this device needs to be used in conjunction with existing technologies such as the intake manifold and air flow sensor of the automobile engine. The intake manifold is connected to the cover part 3 through the interface structure 4 to deliver filtered air, and the air flow sensor is used to monitor the intake air volume and provide feedback to the engine control system. The porous ceramic filter element 5 can be made of cordierite porous ceramic material, which has good high temperature resistance and filtration performance. The elastic component 6 can be a compression spring made of spring steel. The cover part 3 and the filter cartridge part 2 can be made of PA66+GF30 reinforced nylon material to ensure structural strength and aging resistance. At the same time, a sealing ring is also needed to be installed at the connection between the interface structure 4 and the intake manifold to achieve a seal and prevent unfiltered air from entering the engine. In addition, the device is fixed by bolts, clips and other connecting parts in the existing technology to fix the filter body 1 to the bracket in the engine compartment to ensure its stability during vehicle operation.

[0030] Specifically, in the actual implementation of this solution, during installation, the pre-set mounting ears at the bottom of the filter cartridge 2 of the filter body 1 must first be fixed to the metal bracket in the engine compartment using hexagonal bolts, ensuring that the axis of the filter cartridge 2 is tilted at 15° to the horizontal direction to reduce airflow impact; the connection between the interface structure 4 and the intake manifold must be sealed with existing fluororubber O-rings, and the outside of the interface must be tightened with hose clamps to prevent loosening; during operation, air is first introduced into the filter cartridge 2 through the air filter intake pipe in the existing technology, wherein the cordierite material used in the porous ceramic filter element 5 can be made by existing sintering processes, and its surface can be coated with a nano-TiO2 coating to enhance the filtration effect. When the engine starts, In existing technologies, the ECU (Electronic Control Unit) determines the operating conditions based on signals from the throttle position sensor and the intake pressure sensor. In this device, the spring steel compression spring used in the elastic component 6 automatically adjusts the position of the adjusting plate 11 according to the actual intake pressure. When the vehicle is idling, the intake pressure is low, and the adjusting plate 11 closes the second through hole 9. Air enters the adjusting groove 7 through the first through hole 8 and then enters the intake manifold through the interface structure 4. When the vehicle accelerates rapidly, the intake pressure increases sharply, and the elastic component 6 compresses, causing the adjusting plate 11 to open the second through hole 9, increasing the intake volume. At this time, the air flow meter in existing technologies monitors the intake volume in real time and feeds it back to the ECU to achieve precise control of the fuel injection quantity and ensure efficient engine operation.

[0031] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make various modifications and alterations without departing from the spirit and scope of the present invention. Therefore, the scope of protection of the present invention should be determined by the claims.

Claims

1. A porous ceramic filter element air filter for automotive engines, characterized in that, The filter body (1) includes a columnar filter cartridge (2) and a cover (3) connected to the top of the filter cartridge (2). The cover (3) has interface structures (4) for connection on both sides. A porous ceramic filter element (5) is installed inside the filter cartridge (2). The cover (3) is provided with an elastic component (6), which is located in the middle area inside the cover (3) and corresponds to the top of the porous ceramic filter element (5); The cover part (3) is provided with an adjustment groove (7) that penetrates itself. The adjustment groove (7) is provided with a first through hole (8) and a second through hole (9) that communicate with the adjustment groove (7) and the filter part (2) respectively on the side near the filter part (2). The interface structure (4) is located inside the openings at both ends of the adjustment groove (7).

2. The porous ceramic filter element air filter for automotive engines according to claim 1, characterized in that, The filter cartridge (2) is provided with a porous ceramic filter element (5), which is arranged radially and its top end is adapted to the internal structure of the cover (3).

3. The porous ceramic filter element air filter for automotive engines according to claim 1, characterized in that, An adjustment plate (71) is adapted to be provided inside the adjustment groove (7), and the adjustment plate (71) and the elastic component (6) are fixedly connected; the adjustment plate (71) is located above the center of the porous ceramic filter element (5), the first through hole (8) is located below the adjustment plate (71), and the second through hole (9) is located on the side of the adjustment plate (71) away from the elastic component (6).

4. The porous ceramic filter element air filter for automotive engines according to claim 3, characterized in that, The adjustment groove (7) is provided with a protruding ring (10) that engages with the adjustment plate (71), and the adjustment plate (71) is located between the first through hole (8) and the second through hole (9).

5. The porous ceramic filter element air filter for automotive engines according to claim 1, characterized in that, The radial structure of the porous ceramic filter element (5) is evenly distributed, and its outer side wall is adapted to the inner side wall of the filter cylinder (2), and its inner side is matched with the elastic component (6) in the cover body (3).

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