Dust discharging structure for vehicle air cleaner and vehicle

Abstract

The utility model relates to the field of air filter dust removal, in particular to a kind of dust removal structure and vehicle for vehicle air filter, comprising: inlet pipe, for connecting the dust removal port of air filter;Dust removal bowl is communicated with the inlet pipe, for receiving and discharging dust;Connecting pipe is used to communicate the inlet pipe with the dust removal bowl;Wherein, the end face of the dust removal bowl is the surface of adhesion, the surface of adhesion and the outer edge of the fan blade of engine fan are symbol type design, and the port of the dust removal bowl is in the air suction side of engine fan, so that when engine fan operates, negative pressure zone is formed between the dust removal bowl and the inlet pipe.It can improve the dust removal ejection ability of air filter dust removal port, reduce the cleaning and replacement frequency of air filter filter element, reduce the use cost of air filter, and improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of air filter dust removal, specifically to a dust removal structure for vehicle air filters and a vehicle. Background Technology

[0002] With the continuous improvement of agricultural mechanization, high-horsepower tractors are increasingly widely used in agricultural production, especially in Northwest China, where the vast land area, sparse population, and large arable land area make high-horsepower tractors primarily used for heavy-duty operations such as plowing and land preparation. This region has a dry climate, frequent sandstorms, and high concentrations of dust and sand particles in the air, causing tractors to inhale large amounts of dusty air during operation. To ensure normal engine operation, tractors are generally equipped with air filters to filter the air entering the engine and prevent dust particles from entering the combustion system and causing damage.

[0003] Most existing air filters use inertial or paper filter structures, some of which have relatively simple dust removal designs, making the dust removal channels prone to clogging and resulting in incomplete dust removal and reduced filtration efficiency. In prolonged high-dust environments, the filter element easily accumulates dust, requiring frequent manual cleaning or replacement, increasing maintenance costs and operational burden for users. Especially in windy and dusty work sites, when users perform air filter maintenance, external dust can easily enter the intake system, causing the engine to ingest dust and leading to premature wear, cylinder scoring, and reduced power performance—serious malfunctions that not only affect the reliability and continuity of the vehicle but also significantly reduce the user experience and equipment lifespan. Utility Model Content

[0004] The purpose of this utility model is to provide a dust removal structure for vehicle air filters, which can improve the dust removal and ejection capacity of the air filter dust outlet, reduce the frequency of cleaning and replacing the air filter element, reduce the operating cost of the air filter, and improve the user experience.

[0005] Another objective of this invention is to provide a vehicle that can improve the dust ejection capacity of the air filter exhaust port, reduce the frequency of cleaning and replacing the air filter element, reduce the cost of using the air filter, and enhance the user experience.

[0006] The technical solution of this utility model is implemented as follows: A dust removal structure for a vehicle air filter, for mounting on a shroud between an engine fan and a radiator, comprising: The inlet pipe is used to connect to the dust outlet of the air filter. A dust collection bowl, connected to the inlet pipe, is used to receive and discharge dust; A connecting pipe, used to connect the inlet pipe and the dust collection bowl; The dust extraction bowl has a mating surface at its end, which is designed to match the outer edge of the engine fan blades. The port of the dust extraction bowl is located on the intake side of the engine fan, so that when the engine fan is running, a negative pressure zone is formed between the dust extraction bowl and the inlet pipe.

[0007] Furthermore, the outer edge of the engine fan blades has an arc-shaped structure, and the contact surface of the dust extraction bowl is an arc-shaped surface extending along the rotation direction of the engine fan. The arc-shaped surface matches the arc-shaped structure of the outer edge of the fan blades, so that it is in a high negative pressure area when the fan is running.

[0008] Furthermore, the dust discharge port of the dust discharge bowl is provided with an angled dust discharge structure that is inclined in a counterclockwise direction, and the angled dust discharge structure is consistent with the rotation direction of the engine fan, so that the dust can be smoothly discharged under the action of gravity and negative pressure airflow.

[0009] Furthermore, the axial direction of the inlet pipe is consistent with the extension direction of the main body of the dust discharge bowl, so as to match the dust discharge port of the air filter.

[0010] Furthermore, a connecting pipe is provided at the port of the inlet pipe for connecting to the dust outlet of the air filter.

[0011] Furthermore, the connecting tube is a flexible connecting tubing.

[0012] Furthermore, the tilt angle of the angled ash discharge structure is 30° to 60° to balance the gravity settling efficiency and airflow guiding performance, and to prevent dust accumulation and blockage.

[0013] Furthermore, the length and curvature of the arc-shaped surface are configured to cover at least 60% of the swept circumference area of ​​the outer edge of the fan, so as to ensure the formation of a stable negative pressure channel in the fan suction state and improve the pressure difference between the inlet and outlet of the dust removal structure.

[0014] A vehicle, the vehicle being a tractor, the tractor including an engine, an air filter, a radiator and a shroud, including a dust removal structure for the vehicle air filter, the dust removal structure being mounted on the shroud between the engine fan and the radiator, for improving the dust removal ejection capability of the air filter dust outlet.

[0015] Compared with the prior art, the beneficial effects of this utility model are: The dust removal structure (or dust collector) of this application is an important component for air filter dust removal. It is installed between the engine fan and the radiator, and the dust outlet of the air filter is connected to the inlet pipe of the dust removal structure. When the engine fan is running (suction), the negative pressure formed between the inlet and outlet of the dust removal structure draws away the dust from the air filter's dust outlet, thereby improving the dust removal and ejection capacity of the air filter's dust outlet, reducing the frequency of cleaning and replacing the air filter element, reducing the operating cost of the air filter, improving the user experience, and thus reducing the risk of air filter clogging and the frequency of cleaning and replacing the air filter element. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the dust removal structure of this utility model installed on a tractor and connected to the engine and air filter; Figure 2 This is a schematic diagram of the dust removal structure of this utility model from a first perspective; Figure 3 This is a second perspective schematic diagram of the dust removal structure of this utility model; Figure 4 This is a schematic diagram of the dust removal structure of this utility model from a third perspective; Figure 5 This is a fourth perspective schematic diagram of the dust removal structure of this utility model.

[0018] In the picture: 1-Engine; 2-Air filter; 3-Radiator; 4-Air guide shroud; 5-Dust removal structure; 6-Connecting hose; 7-Inlet pipe; 8-Dust removal bowl; 9-Connecting pipe; 10-Arc-shaped surface structure; 11-Angled dust removal structure. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0020] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. 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. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0023] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0024] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] Example 1 like Figures 1 to 5As shown, this application provides a dust removal structure (or dust collector) for a vehicle air filter, which is installed on the air guide shroud 4 between the engine fan 1 and the radiator 3. It enhances the dust ejection capability of the air filter 2's dust outlet, enabling the air filter 2 to automatically remove dust. This dust removal structure 5 utilizes the negative pressure field created in a localized area by the engine fan 1 during operation to efficiently eject the dust accumulated inside the air filter 2, thereby reducing the frequency of cleaning and replacing the air filter element and improving the vehicle's adaptability and reliability under harsh operating conditions.

[0027] The dust removal structure 5 includes an inlet pipe 7, a dust removal bowl 8, and a connecting pipe 9. The three are integrally molded to form an overall shell structure. The material can be engineering plastic or lightweight metal, which has good weather resistance and structural strength to meet the long-term operating requirements of tractors in high dust and large temperature difference environments.

[0028] The inlet pipe 7 is located on one side of the dust collector and is used to connect to the dust discharge port at the bottom of the air filter 2 via a flexible connecting hose 6. The axis of the inlet pipe 7 faces the side where the air filter 2 is located, that is, it is consistent with the dust discharge direction of the air filter 2. This allows the connecting hose 6 to be laid out along a shorter path, with a smooth direction and no obvious bends, effectively reducing airflow resistance and improving the flow efficiency of the dust-discharging gas.

[0029] The dust collection bowl 8 serves as the main dust collection and ejection chamber. Its port is a mating surface used to match the outer edge of the fan blades of engine 1. The mating surface has an arc-shaped structure 10, which matches the rotation trajectory of the outer edge of the fan blades of engine 1, achieving a spatial conformal fit design. That is, when engine 1 fan rotates at high speed, a significant low-pressure (negative pressure) area is formed around the end of the fan blades. This solution extends the length of the arc-shaped structure of the dust collection bowl 8, giving it a larger projected area within the high negative pressure area generated by the fan rotation. This significantly enhances the negative pressure intensity inside the dust collector, increases the pressure difference between the inlet pipe 7 and the dust collection bowl 8, and facilitates more efficient intake and guidance of dust-laden gas from the air filter 2 to the external environment.

[0030] Preferably, the length and curvature of the arc-shaped surface structure 10 are configured to cover at least 60% of the sweeping circumferential area of ​​the outer edge of the fan, so as to ensure that a stable negative pressure channel is formed when the fan is in the suction state, thereby increasing the pressure difference between the inlet and outlet of the dust exhaust structure 5. After the negative pressure channel is formed when the fan is running, the accumulated dust is automatically ejected to the dust exhaust structure 5 and discharged outside the vehicle.

[0031] Furthermore, the bottom of the dust collection bowl 8 is provided with a dust discharge port, at which an angled dust discharge structure 11 is installed, tilted in the opposite direction of the fan's rotation. This angled dust discharge structure 11 utilizes gravity to cause dust to fall and be discharged naturally, avoiding accumulation and blockage. On the other hand, its tilt direction is consistent with the airflow direction generated by the fan's rotation, which can utilize the guiding effect of the fan's wake to form a synergistic dust discharge airflow, allowing dust to be discharged quickly and smoothly under the combined action of centrifugal force and airflow traction, preventing secondary dust generation or backflow.

[0032] Preferably, the tilt angle of the angled ash discharge structure 11 is 30° to 60°, and more preferably the tilt angle is designed to be 49° to 51°, such as 49°, 50° or 51°, in order to balance the gravity settling efficiency and airflow guiding performance and prevent dust accumulation and blockage.

[0033] The connecting pipe 9 is located at the other end of the dust bowl 8. As the dust exhaust channel outlet, it faces directly to the outside of the vehicle body or guides the dust to non-sensitive areas, ensuring that the discharged dust will not re-enter the intake system or adhere to the surface of the radiator 3, thus ensuring the safety of the vehicle's thermal management and intake air cleaning.

[0034] In actual operation, when the tractor engine 1 starts and the fan begins to run, the fan's suction creates a continuous negative pressure in the area where the dust collection bowl 8 is located. Since the inlet pipe 7 is connected to the dust outlet of the air filter 2 via the connecting hose 6, the air pressure inside the air filter 2 is relatively high. Therefore, driven by the pressure difference, the dust particles accumulated at the bottom of the air filter 2 are carried by the airflow through the dust outlet, connecting hose 6, and inlet pipe 7 into the dust collection bowl 8 cavity, and finally thrown out of the machine body through the ash discharge port along the angled ash discharge structure 11, completing the automatic dust removal process.

[0035] The dust removal structure 5 of this solution is particularly suitable for high-horsepower, high-power CVT series tractors (such as the P7000CVT tractor). Especially when operating in areas with severe sandstorms such as Northwest China, it can significantly extend the maintenance cycle of the air filter 2, reduce the frequency of manual maintenance, and avoid the risk of dust entering the engine 1 due to frequent disassembly of the air filter. This effectively prevents early wear, cylinder scoring, power loss and other faults of the engine 1, and improves the overall operating efficiency and user experience.

[0036] The dust removal structure 5 of this scheme utilizes the non-uniform flow field negative pressure distribution formed in the air guide shroud 4 area when the fan of engine 1 is running. By optimizing the spatial layout and geometry of the dust collector, its key components are placed in a high negative pressure area, thereby enhancing the ejection capability of the dust outlet of air filter 2.

[0037] When using the dust removal structure 5, the following steps are included: Utilizing the natural negative pressure field formed inside the air guide shroud 4 when the fan of engine 1 is running, no additional power source is required; The dust accumulated in the air filter 2 is led to the inlet pipe 7 of the dust collector through the connecting hose 6; The negative pressure area is expanded by utilizing the arc-shaped surface design of the dust extraction bowl 8 (i.e., arc-shaped surface structure 10) to enhance the ejection effect; After dust enters the dust collection bowl 8, it is discharged out of the machine body in a directional manner along the angled dust collection structure 11 under the combined action of gravity and the local eddy current caused by the fan rotation.

[0038] The dust removal structure 5 does not rely on electric or mechanical suction devices, but relies entirely on the inherent aerodynamic characteristics of the engine 1 fan to achieve continuous passive dust removal, making it suitable for long-term operation of high-horsepower CVT tractors in high-dust environments.

[0039] The technical advantages of this solution: 1. Compact structure and space fit: The space inside the tractor hood is very tight. This dust collector is made small and fits perfectly between the fan and radiator 3, taking up little space and saving space. 2. The dust discharge bowls 8 at the inlet and outlet of the dust discharge structure 5 are aligned: its dust inlet (inlet pipe 7) and the dust discharge part (dust discharge bowl 8) face the same direction, so that the air filter 2 can be connected through a connecting hose 6, which is convenient to install and has good sealing performance; 3. The dust extraction bowl 8 has an arc-shaped end face to match the fan airflow: its dust extraction bowl 8 is made into a long arc shape, which fits perfectly against the outer ring shape of the fan blades. In this way, the strongest "suction zone" generated when the fan rotates covers this arc-shaped area, resulting in stronger suction and more powerful dust removal; 4. The angled dust removal structure 11 of the dust collection bowl 8 helps dust to be discharged smoothly: The outlet of the dust collection bowl 8 has an inward tilt angle, and the direction is consistent with the rotation direction of the fan. In this way, dust can not only fall naturally by gravity, but also be centrifugally thrown out by the rotating airflow, making it less prone to clogging and more clean.

[0040] In summary, this dust extraction structure 5 is highly suitable for dust extraction from the tractor air filter 2. It cleverly enhances dust collection by utilizing the airflow from the engine 1 fan, allowing the air filter 2 to automatically remove dust over extended periods. This significantly reduces the frequency of manual cleaning, extends filter life, protects the engine 1, reduces the operating costs of the air filter 2, and improves overall machine efficiency and user experience. It is particularly suitable for harsh operating environments with high horsepower, high loads, and frequent sandstorms, making it a highly practical and cost-effective innovative structure.

[0041] Example 2 A vehicle, which is a tractor, includes an engine 1, an air filter 2, a radiator 3, and a wind deflector 4, and is also equipped with an air filtration system, which includes the aforementioned dust removal structure 5. It is particularly suitable for high-end models such as the P7000 CVT tractor, and significantly extends the maintenance cycle of the air filter 2 under heavy-load working conditions such as plowing and land preparation in the windy and sandy areas of Northwest China.

[0042] In practice, the dust extraction structure 5 is installed on the air guide shroud 4 between the engine fan and radiator 3 to enhance the pressure difference between the inlet of the dust extraction structure 5 and the dust extraction bowl 8, thereby improving the dust extraction and ejection capability of the air filter 2's dust outlet. The introduction of this dust extraction structure 5 reduces the cleaning frequency of the air filter 2's filter element by more than 40% and extends the filter element's service life by more than 30%. At the same time, it effectively avoids the risk of dust entering the engine 1 due to on-site disassembly and cleaning, and its overall structure is compact, making it suitable for the limited space inside the tractor's engine hood.

[0043] Example 3 A method for designing a dust removal structure 5 for a tractor, comprising the following steps: Obtain three-dimensional spatial constraints and fan airflow distribution data for engine compartment 1 of the target aircraft model; The stable high negative pressure region formed during the fan rotation process was determined based on CFD simulation. The arc-shaped structure of the dust extraction bowl 8 is designed to match the spatial distribution of the high negative pressure area. Optimize the angle and direction of the ash discharge outlet to coordinate with the fan rotation direction and improve the smoothness of dust discharge; This results in a highly efficient passive dust removal device based on the design concept of "flow field coupling + structural conformity".

[0044] The beneficial effects of the technical solution of this utility model are: 1. Compact structure and strong space adaptability: The overall size of the dust collector has been optimized and can be flexibly installed in the narrow space between the fan and the heat sink 3. The inlet pipe 7 and the dust bowl 8 face the same direction, which makes it easy to connect to the dust outlet of the air filter 2 through a simple hose. The pipe laying is convenient and the system integration is high.

[0045] 2. Strong negative pressure ejection capability and high dust removal efficiency: By designing the dust removal bowl 8 as a long arc structure that conforms to the outer edge of the fan impeller, a large area of ​​it is located in the high negative pressure zone after the fan rotates, which significantly increases the pressure difference between the inlet and the dust removal chamber, improves the suction capability of dust in the air filter 2, and achieves efficient active dust removal.

[0046] 3. Smooth dust removal and good backflow prevention performance: The bottom of the dust removal bowl 8 is equipped with an angled structure that is opposite to the rotation direction of the fan. Under the combined action of gravity and centrifugal force, the dust is guided to be discharged quickly. At the same time, the fan tail flow forms an auxiliary airflow to prevent dust accumulation or backflow and avoid secondary pollution.

[0047] 4. Extend air filter life and reduce maintenance costs: Effectively reduce the amount of dust accumulation and cleaning frequency of the air filter element, extend its service life, and reduce the user's maintenance time and economic costs.

[0048] 5. Improve overall machine reliability and user experience: Especially suitable for high-horsepower, high-end CVT tractors (such as the P7000CVT tractor) to operate for a long time in harsh working conditions with strong winds and heavy dust. It significantly improves the cleanliness and protection capability of the intake system, prevents premature damage to the engine caused by dust inhalation, ensures stable power output, and improves work efficiency and user satisfaction.

[0049] In summary, this application provides a tractor dust collector structure that is rationally designed, has superior performance, and is highly practical, with good prospects for industrial application and is especially suitable for the technological upgrading needs of high-end agricultural equipment.

[0050] 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 the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A dust removal structure for a vehicle air filter, characterized in that, The dust extraction structure (5) is mounted on the air shroud (4) between the engine (1) fan and the radiator (3), and includes: Inlet pipe (7) is connected to the dust outlet of air filter (2); The dust collection bowl (8) is connected to the inlet pipe (7) and is used to receive and discharge dust; Connecting pipe (9) is used to connect the inlet pipe (7) and the dust discharge bowl (8); The end face of the dust extraction bowl (8) is a mating surface, and the mating surface is designed to match the outer edge of the fan blade of the engine (1) fan. The port of the dust extraction bowl (8) is located on the suction side of the engine (1) fan, so that when the engine (1) fan is running, a negative pressure zone is formed between the dust extraction bowl (8) and the inlet pipe (7).

2. The dust removal structure for a vehicle air filter according to claim 1, characterized in that, The outer edge of the fan blades of the engine (1) is an arc-shaped structure, and the contact surface of the dust bowl (8) is an arc-shaped surface structure (10) extending along the rotation direction of the engine (1) fan. The arc-shaped surface structure (10) matches the arc-shaped structure of the outer edge of the fan blades, so that it is in a high negative pressure area when the fan is running.

3. The dust removal structure for a vehicle air filter according to claim 1, characterized in that, The dust discharge bowl (8) has a ash discharge port with an angled ash discharge structure (11) that is inclined in the counterclockwise direction, and the angled ash discharge structure (11) is in the same direction as the fan rotation of the engine (1) so that the dust can be discharged smoothly under the action of gravity and negative pressure airflow.

4. The dust removal structure for a vehicle air filter according to claim 1, characterized in that, The axial direction of the inlet pipe (7) is consistent with the extension direction of the main body of the dust discharge bowl (8) so as to match the dust discharge port of the air filter (2).

5. The dust removal structure for a vehicle air filter according to claim 1, characterized in that, A connecting pipe (9) is provided at the port of the inlet pipe (7) for connecting with the dust outlet of the air filter (2).

6. The dust removal structure for a vehicle air filter according to claim 5, characterized in that, The connecting pipe (9) adopts a flexible connecting hose (6).

7. The dust removal structure for a vehicle air filter according to claim 2, characterized in that, The length and curvature of the arc-shaped surface structure (10) are configured to cover at least 60% of the swept circumferential area of ​​the outer edge of the fan to ensure that a stable negative pressure channel is formed during the fan's suction state, thereby increasing the pressure difference between the inlet and outlet of the dust removal structure (5).

8. The dust removal structure for a vehicle air filter according to claim 3, characterized in that, The inclined angle of the ash discharge structure (11) is 30° to 60° to balance the gravity settling efficiency and airflow guiding performance, and to prevent dust accumulation and blockage.

9. A vehicle, said vehicle being a tractor, said tractor comprising an engine (1), an air filter (2), a radiator (3), and a shroud (4), characterized in that, The dust removal structure (5) for a vehicle air filter is included in any one of claims 1-8. The dust removal structure (5) is installed on the air guide shroud (4) between the engine (1) fan and the radiator (3) to improve the dust removal ejection capability of the air filter (2) dust outlet.

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