Gasoline engine air inlet channel with micron size control function

By introducing an activated carbon filter and an automatic cleaning mechanism into the intake manifold of a gasoline engine, the problem of easy filter clogging is solved, achieving automatic cleaning and continuous filtration, thereby improving the operating efficiency of the intake manifold and air quality.

CN224228761UActive Publication Date: 2026-05-12JIANGYIN XINDA DIE CASTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGYIN XINDA DIE CASTING CO LTD
Filing Date
2025-06-20
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing gasoline engine intake filters are prone to clogging, leading to increased intake resistance, which affects power output and combustion efficiency. In addition, manual cleaning is tedious and may damage the connection parts, affecting the sealing performance.

Method used

It adopts an activated carbon filter combined with an automatic cleaning mechanism. The drive motor drives the transmission shaft and cam block to achieve automatic vibration cleaning of the filter, avoiding the accumulation and blockage of impurities and keeping the air intake unobstructed.

Benefits of technology

It achieves automatic cleaning of the filter, reduces the frequency of manual maintenance, maintains the continuous filtration capacity of the intake duct and smooth air intake, and improves the operating efficiency of the gasoline engine and air quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of gasoline engine air intake, and discloses a micron size control gasoline engine air intake duct which comprises an air intake duct body, the surface of the air intake duct body is fixedly connected with a filter box, air is filtered through an activated carbon filter screen, impurities such as dust and harmful gas in the air can be adsorbed, the impurities are prevented from entering a gasoline engine, and the service life of the gasoline engine is prolonged. Meanwhile, a driving motor in the cleaning mechanism drives a transmission shaft to rotate so as to drive a cam block to rotate, when the protruding part of the cam block makes contact with the activated carbon filter screen, the activated carbon filter screen is jacked up, and when the protruding part is disengaged, the filter screen retracts under the action of a reset spring to generate vibration; impurities on the surface of the activated carbon filter screen can be automatically shaken off, the trouble that the filter screen is manually and frequently disassembled and cleaned is avoided, meanwhile, the continuous filtering capacity of the filter screen is guaranteed, the filter screen does not need to be frequently replaced, impurities are prevented from being accumulated for a long time to block the filter screen, smooth air inlet of the gasoline engine is guaranteed, and good air quality is maintained.
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Description

Technical Field

[0001] This utility model relates to the field of gasoline engine intake technology, and in particular to a gasoline engine intake manifold with micron-level size control. Background Technology

[0002] In the context of the development of modern gasoline engine technology, in order to achieve more efficient combustion, lower emissions and better power performance, higher requirements have been placed on the size control of the intake manifold. Micron-level size control can precisely adjust the internal structural dimensions of the intake manifold, thereby optimizing the airflow characteristics of the intake air, making the air-fuel mixture entering the combustion chamber more uniform and improving combustion efficiency.

[0003] With the development of modern industry and changes in the environment, the air contains various impurities, such as dust particles, tiny suspended solids, and harmful gases. To reduce the entry of impurities, some air intakes are equipped with filters. However, existing filters have many problems during use. On the one hand, after filtering impurities for a long time, a large amount of impurities easily accumulate on the surface of the filter. If these impurities are not cleaned in time, they will cause the filter to become clogged. Once the filter is clogged, the intake resistance will increase, affecting the intake volume of the gasoline engine, thereby reducing the power output of the gasoline engine, and leading to incomplete combustion, increasing fuel consumption and pollutant emissions. On the other hand, traditional filter cleaning methods often rely on manual disassembly and cleaning. This method is not only cumbersome to operate, but also requires the engine to be shut down, which seriously affects the normal use of the gasoline engine. At the same time, frequent disassembly and installation of the filter may also damage the connection between the filter and the intake manifold, affecting the sealing performance and thus affecting the intake effect. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a micron-level controlled gasoline engine intake manifold, including an intake manifold, a filter box fixedly connected to the surface of the intake manifold, a mounting block fixedly connected to the inner wall of the filter box, a limiting slide rod fixedly connected to the surface of the mounting block, a mounting ring sleeved on the surface of the limiting slide rod, a return spring fixedly connected to the surface of the mounting ring, an activated carbon filter screen fixedly connected inside the mounting ring, a collection groove opened on the inner wall of the filter box, and a cleaning mechanism provided inside the filter box;

[0005] The cleaning mechanism includes a drive motor, the output end of which is fixedly connected to a transmission shaft, and several cam blocks are fixedly connected to the surface of the transmission shaft. A protective shell is fitted onto the surface of the drive motor.

[0006] The above technical solution uses an activated carbon filter to filter air, adsorbing dust, harmful gases, and other impurities, preventing them from entering the gasoline engine and reducing wear on internal components. Simultaneously, a drive motor in the cleaning mechanism rotates the transmission shaft, which in turn rotates the cam block. When the protruding part of the cam block contacts the activated carbon filter, it lifts it up. When the protruding part disengages, the filter retracts under the action of a return spring, generating vibration that automatically shakes off impurities from the surface of the activated carbon filter. This avoids the hassle of frequent manual disassembly and cleaning of the filter, while also ensuring the filter's continuous filtering capacity. Frequent filter replacements are unnecessary, preventing impurities from accumulating and clogging the filter over time, ensuring smooth air intake for the gasoline engine and maintaining good air quality.

[0007] As a further improvement to the above solution, two mounting blocks are provided, which are fixedly connected to both ends of the limiting slide rod.

[0008] The above technical solutions enhance the stability of the entire filter installation structure, which is conducive to the activated carbon filter performing its filtration and cleaning functions properly.

[0009] As a further improvement to the above solution, one end of the return spring is fixedly connected to the surface of the mounting ring, and the other end of the return spring is fixedly connected to the surface of the mounting block.

[0010] The above technical solution provides elastic restoring force for the vibration of the activated carbon filter screen, ensuring that the filter screen can vibrate normally to shake off impurities and maintain the self-cleaning function of the filter screen.

[0011] As a further improvement to the above solution, the drive motor is fixedly connected to the upper surface of the filter box, and the bottom end of the transmission shaft is rotatably connected to the inner wall of the filter box.

[0012] The above technical solution enables the cam block to periodically lift and detach the activated carbon filter screen according to design requirements, thereby cleaning the filter screen.

[0013] As a further improvement to the above solution, the cam block comes into contact with the activated carbon filter.

[0014] As a further improvement to the above solution, the collection tank is located below the activated carbon filter.

[0015] The above technical solution prevents impurities from scattering throughout the filter box, which helps keep the inside of the filter box clean.

[0016] As a further improvement to the above solution, a bolt mounting plate is fixedly connected to the surface of the filter box.

[0017] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0018] This invention uses an activated carbon filter to filter air, adsorbing dust, harmful gases, and other impurities, preventing them from entering the gasoline engine and reducing wear on internal components. Simultaneously, a drive motor in the cleaning mechanism rotates the transmission shaft, which in turn rotates the cam block. When the protruding part of the cam block contacts the activated carbon filter, it lifts it up. When the protruding part disengages, the filter retracts under the action of a return spring, generating vibration that automatically shakes off impurities from the surface of the activated carbon filter. This avoids the hassle of frequent manual disassembly and cleaning of the filter, while also ensuring the filter's continuous filtering capacity. Frequent filter replacements are unnecessary, preventing impurities from accumulating and clogging the filter over time, ensuring smooth air intake for the gasoline engine and maintaining good air quality. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the structure of the mounting block of this utility model;

[0021] Figure 3 This is a schematic diagram of the structure of the filter screen of this utility model;

[0022] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A;

[0023] Figure 5 This is a schematic diagram of the cleaning mechanism of this utility model.

[0024] Explanation of key symbols:

[0025] 1. Air intake; 2. Filter box; 3. Mounting block; 4. Limiting slide bar; 5. Mounting ring; 6. Return spring; 7. Activated carbon filter; 8. Collection tank; 9. Cleaning mechanism; 901. Drive motor; 902. Transmission shaft; 903. Cam block; 904. Protective shell; 10. Bolt mounting plate. Detailed Implementation

[0026] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0027] Example:

[0028] Please combine Figure 1-5This embodiment of a micron-level controlled gasoline engine intake manifold includes an intake manifold 1, a filter box 2 fixedly connected to the surface of the intake manifold 1, an installation block 3 fixedly connected to the inner wall of the filter box 2, a limiting slide rod 4 fixedly connected to the surface of the installation block 3, an installation ring 5 sleeved on the surface of the limiting slide rod 4, a return spring 6 fixedly connected to the surface of the installation ring 5, an activated carbon filter screen 7 fixedly connected inside the installation ring 5, a collection groove 8 opened on the inner wall of the filter box 2, and a cleaning mechanism 9 provided inside the filter box 2.

[0029] The cleaning mechanism 9 includes a drive motor 901, the output end of which is fixedly connected to a transmission shaft 902. Several cam blocks 903 are fixedly connected to the surface of the transmission shaft 902. A protective shell 904 is fitted onto the surface of the drive motor 901. A filter box 2 on the surface of the air intake duct 1 is used to filter air. The activated carbon filter screen 7 inside the filter box 2 is fitted onto the limiting slide rod 4 via an mounting ring 5, and the mounting ring 5 is connected to a return spring 6. The drive motor 901 in the cleaning mechanism 9 drives the transmission shaft 902 to rotate, and the cam blocks 903 on the transmission shaft 902 rotate accordingly. When the protruding part of the cam block 903 contacts the activated carbon filter screen 7, it lifts the mounting ring 5 and the activated carbon filter screen 7, and the mounting ring 5 compresses the return spring 6. When the protruding part disengages from the activated carbon filter screen 7, the activated carbon filter screen 7 retracts and vibrates under the reset action of the return spring 6, causing surface impurities to fall into the collection tank 8. This avoids the trouble of frequently disassembling and cleaning the filter screen manually, and also ensures the continuous filtration capacity of the filter screen. It does not require frequent replacement of the filter screen, avoids the accumulation of impurities that clog the filter screen for a long time, ensures smooth air intake of the gasoline engine, and maintains good air quality.

[0030] There are two mounting blocks 3, which are fixedly connected to both ends of the limiting slide rod 4. The two mounting blocks 3 are fixed to both ends of the limiting slide rod 4 to provide a stable support structure for the limiting slide rod 4 and ensure that the activated carbon filter screen 7 moves stably on the limiting slide rod 4 through the mounting ring 5.

[0031] One end of the reset spring 6 is fixedly connected to the surface of the mounting ring 5, and the other end of the reset spring 6 is fixedly connected to the surface of the mounting block 3. When the activated carbon filter screen 7 is lifted by the cam block 903, the mounting ring 5 compresses the reset spring 6. When the pressure of the cam block 903 disappears, the reset spring 6 uses its own elasticity to reset the mounting ring 5 and the activated carbon filter screen 7.

[0032] The drive motor 901 is fixedly connected to the upper surface of the filter box 2, and the bottom end of the transmission shaft 902 is rotatably connected to the inner wall of the filter box 2. When the drive motor 901 is working, it can stably drive the transmission shaft 902 to rotate, thereby enabling the cam block 903 to operate normally and achieve vibration cleaning of the activated carbon filter screen 7.

[0033] The cam block 903 is in contact with the activated carbon filter screen 7, and the collection tank 8 is located below the activated carbon filter screen 7, so that the impurities shaken off by the vibration of the activated carbon filter screen 7 can fall directly into the collection tank 8 under the action of gravity.

[0034] The collection tank 8 is located below the activated carbon filter 7.

[0035] The surface of the filter box 2 is fixedly connected with a bolt mounting plate 10. The bolt mounting plate 10 on the surface of the filter box 2 is used to connect with the external pipeline. By fixing with bolts, the sealing and stability of the connection between the air intake duct 1 and the external pipeline are ensured, thereby ensuring the normal operation of the air intake.

[0036] The implementation principle of a micron-level controlled gasoline engine intake manifold in this embodiment is as follows: First, the filter box 2 on the surface of the intake manifold 1 is used to filter air. The activated carbon filter 7 inside the filter box 2 is sleeved on the limiting slide rod 4 through the mounting ring 5, and the mounting ring 5 is connected to the return spring 6. The mounting blocks 3 are respectively fixed at both ends of the limiting slide rod 4 to provide stable support for the limiting slide rod 4 and ensure the stable movement of the activated carbon filter 7. Next, when the drive motor 901 in the cleaning mechanism 9 starts to work, the drive motor 901 drives the transmission shaft 902 to rotate. Since the bottom end of the transmission shaft 902 is rotatably connected to the inner wall of the filter box 2, the transmission shaft 902 can rotate stably. Then, the cam block 903 on the transmission shaft 902 rotates with the rotation of the transmission shaft 902. Because the cam block 903 is in contact with the activated carbon filter 7, when the protruding part of the cam block 903... When the activated carbon filter 7 comes into contact with the filter, the mounting ring 5 and the activated carbon filter 7 are lifted up. At this time, the mounting ring 5 compresses the return spring 6. Then, when the protruding part of the cam block 903 disengages from the activated carbon filter 7, the activated carbon filter 7 retracts and vibrates under the reset action of the return spring 6. Since the collection groove 8 is located below the activated carbon filter 7, the impurities shaken off by the vibration of the activated carbon filter 7 fall directly into the collection groove 8 under the action of gravity, avoiding the trouble of frequent manual disassembly and cleaning of the filter. At the same time, it also ensures the continuous filtration capacity of the filter, eliminating the need for frequent filter replacement and preventing impurities from accumulating and clogging the filter for a long time. This ensures smooth air intake of the gasoline engine and maintains good air quality. Finally, the bolt mounting plate 10 on the surface of the filter box 2 is used to connect with the external pipeline. By fixing with bolts, the sealing and stability of the connection between the intake duct 1 and the external pipeline are ensured, thereby ensuring the normal operation of the intake.

[0037] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A micrometer-scale controlled intake manifold for a gasoline engine, characterized in that, The filter box (2) is fixedly connected to the surface of the air intake (1). The inner wall of the filter box (2) is fixedly connected to the mounting block (3). The surface of the mounting block (3) is fixedly connected to the limiting slide rod (4). The surface of the limiting slide rod (4) is sleeved with the mounting ring (5). The surface of the mounting ring (5) is fixedly connected to the return spring (6). The interior of the mounting ring (5) is fixedly connected to the activated carbon filter screen (7). The inner wall of the filter box (2) is provided with a collection groove (8). The interior of the filter box (2) is provided with a cleaning mechanism (9). The cleaning mechanism (9) includes a drive motor (901), the output end of which is fixedly connected to a transmission shaft (902), and a number of cam blocks (903) are fixedly connected to the surface of the transmission shaft (902). A protective shell (904) is fitted onto the surface of the drive motor (901).

2. The micron-level size control gasoline engine intake manifold as described in claim 1, characterized in that: The number of the mounting blocks (3) is set to two, which are fixedly connected to the two ends of the limiting slide rod (4).

3. The micron-level size control gasoline engine intake manifold as described in claim 1, characterized in that: One end of the reset spring (6) is fixedly connected to the surface of the mounting ring (5), and the other end of the reset spring (6) is fixedly connected to the surface of the mounting block (3).

4. The micron-level size control gasoline engine intake manifold as described in claim 1, characterized in that: The drive motor (901) is fixedly connected to the upper surface of the filter box (2), and the bottom end of the transmission shaft (902) is rotatably connected to the inner wall of the filter box (2).

5. The micron-level size control gasoline engine intake manifold as described in claim 1, characterized in that: The cam block (903) is in contact with the activated carbon filter (7).

6. The micron-level size control gasoline engine intake manifold as described in claim 1, characterized in that: The collection tank (8) is located below the activated carbon filter (7).

7. The micron-level size control gasoline engine intake manifold as described in claim 1, characterized in that: The surface of the filter box (2) is fixedly connected with a bolt mounting plate (10).