Variable air inlet engine air filter
By designing a variable intake engine air filter and utilizing the coordination of the adjustment device and the telescopic part, the engine intake volume can be flexibly adjusted, thus solving the problem of the single intake mode in the existing technology and improving the engine's power performance and operating efficiency.
Patent Information
- Application Number
- CN202423000415.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-05
- Publication Date
- 2025-09-09
- Estimated Expiration
- 2034-12-05
AI Technical Summary
The existing engine air filter has a relatively simple intake mode and cannot flexibly adjust the intake volume to adapt to different working conditions, resulting in the engine's power performance not being fully utilized.
A variable intake engine air filter is designed. Through the cooperation of the adjustment device and the telescopic part, the motor and the adjustment part are used to realize the expansion and contraction of the connecting pipe, and the intake volume is adjusted according to the real-time operating status of the engine.
It enables the engine to obtain the optimal air intake volume under different working conditions, fully exerts the power performance, and improves the engine's operating efficiency and strength.
Smart Images

Figure CN223317943U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to vehicle technology, and in particular to a variable intake engine air filter. Background Art
[0002] The engine air filter, a crucial component of the engine's intake system, has a structural design that directly impacts overall engine performance, including power, fuel economy, and emissions. With the rapid advancement of technology, engine air filter technology is also constantly improving to better adapt to and meet growing market demands.
[0003] A well-designed engine air filter can fully utilize the resonance effect to effectively reduce airflow losses during passage. While maintaining the same cylinder volume, it provides the engine with more sufficient and pure fresh air and evenly distributes this air to each cylinder. This optimization allows for more complete fuel combustion, thereby increasing the engine's useful power output and promoting cleaner emissions.
[0004] However, existing engine air filters still have a relatively simple intake mode. When the engine is running at high speed and high load, the engine requires a high intake volume; when the engine is running at low speed and low load, the engine requires a low intake volume. The appropriate intake volume can maximize engine power performance, so the ability to flexibly adjust the intake volume is crucial.
[0005] Therefore, the applicant intends to propose a variable intake engine air filter to solve the above problems. Utility Model Content
[0006] The purpose of the utility model is to provide an air filter for an engine with variable air intake, which can flexibly adjust the air intake volume and give full play to the power performance of the engine.
[0007] To achieve the above objectives, the present invention provides a solution: a variable intake engine air filter, comprising an engine, a housing, and a connecting pipe, wherein an air filter cavity is provided in the housing, the connecting pipe extends into the housing and communicates with the air filter cavity, and the engine air filter further comprises an adjusting device;
[0008] A telescopic portion is provided at one end of the connecting pipe connected to the filter chamber of the air filter, and the telescopic portion extends or shortens along the length direction of the connecting pipe; the adjusting device is fixedly connected to the telescopic portion, the engine is connected to the adjusting device through a control signal, and the adjusting device is used to pull the telescopic portion to extend or shorten.
[0009] Furthermore, the adjusting device includes a motor and an adjusting part. The engine is connected to the motor through a control signal. The output end of the motor is fixedly connected to the adjusting part. The adjusting part is fixedly connected to the telescopic part. The output end of the motor drives the adjusting part to pull the telescopic part to extend or shorten.
[0010] Furthermore, the adjusting member is L-shaped, and the output end of the motor is fixedly connected to the telescopic part through the adjusting member.
[0011] Furthermore, the connecting tube includes a front tube, a telescopic part and a rear tube. The front tube extends into the shell and is fixedly connected to one end of the telescopic part. The other end of the telescopic part is fixedly connected to the rear tube. The rear tube is fixedly connected to the adjusting part of the adjusting device.
[0012] Furthermore, it also includes a fixing rod, the rear tube is provided with a connecting hole, and the connecting hole of the rear tube is sleeved on the fixing rod so that the rear tube slides along the fixing rod.
[0013] Furthermore, the engine establishes a control signal connection with the regulating device in a wired or wireless manner.
[0014] Furthermore, the telescopic portion is a bellows.
[0015] The above solution provides a significant benefit for the present invention: the adjustment device flexibly adjusts the intake volume by pulling the telescopic portion of the connecting pipe to extend or contract. This ensures the engine receives the optimal intake volume under various operating conditions, thereby fully unleashing its power and achieving more efficient and powerful operation. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 This is a schematic structural diagram of an embodiment of the present utility model;
[0017] Figure 2 This is a schematic structural diagram of a connecting pipe and an adjusting device according to an embodiment of the present invention;
[0018] Figure 3 This is a schematic structural diagram of a rear pipe and a connecting piece according to an embodiment of the present invention;
[0019] Figure 4 This is a structural schematic diagram of the rear tube and the connecting piece from another angle according to one embodiment of the present invention.
[0020] Description of labels:
[0021] 1. Connecting tube; 11. Front tube; 12. Telescopic portion; 13. Rear tube; 131. Connecting hole;
[0022] 2. Adjustment device; 21. Motor; 22. Adjustment member; 23. Fixing rod;
[0023] 3. Shell; 31. Air filter chamber. DETAILED DESCRIPTION
[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.
[0025] In the description of the present invention, it should be understood that when a component is considered to be “connected” to another component, it may be directly connected to the other component or there may be a centrally located component at the same time.
[0026] A variable intake engine air filter includes an engine, a housing 3 and a connecting pipe 1. The housing 3 is provided with an air filter chamber 31. The connecting pipe 1 extends into the housing 3 and communicates with the air filter chamber 31. The engine air filter also includes an adjusting device 2; one end of the connecting pipe 1 communicating with the air filter chamber 31 is provided with a telescopic portion 12, and the telescopic portion 12 extends or shortens along the length of the connecting pipe 1; the adjusting device 2 is fixedly connected to the telescopic portion 12, and the engine and the adjusting device 2 are connected via a control signal. The adjusting device 2 is used to pull the telescopic portion 12 to extend or shorten.
[0027] The engine and the regulating device 2 are connected via control signals. The engine is provided with a chip for emitting signals reflecting its real-time operating status. The regulating device 2 is provided with a chip for receiving engine signals, which is used to receive signals indicating the real-time operating status of the engine. At the same time, the regulating device 2 extends or shortens the telescopic portion 12 according to the received signals. When the engine is running at high speed and high load, the engine requires a high air intake. The engine chip emits a signal requiring a high air intake. The regulating device 2 chip receives the signal requiring a high air intake and controls the regulating device 2 to extend the telescopic portion 12. When the engine is running at low speed and low load, the engine requires a low air intake. The engine chip emits a signal requiring a low air intake. The regulating device 2 chip receives the signal requiring a low air intake and controls the regulating device 2 to shorten the telescopic portion 12. The regulating device 2 flexibly adjusts the state of the telescopic portion 12 according to the engine's different speeds and loads, thereby adjusting the parameters of the air intake to maximize the engine's power performance.
[0028] Main references Figure 2 The adjusting device 2 includes a motor 21 and an adjusting member 22. The motor 21 is connected to the motor 21 via a control signal. The output end of the motor 21 is fixedly connected to the adjusting member 22, which is fixedly connected to the telescopic portion 12. The output end of the motor 21 drives the adjusting member 22 to extend or contract the telescopic portion 12. The adjusting member 22, as a connecting member between the motor and the telescopic portion 12, can buffer the output of the motor 21, so that the motor 21 drives the telescopic portion 12 to extend or contract more smoothly.
[0029] Main references Figure 2 、 Figure 3 and Figure 4 , the adjusting member 22 is L-shaped, and the output end of the motor 21 is fixedly connected to the telescopic part 12 through the adjusting member 22. The L-shaped adjusting member 22 makes the output end of the motor 21 and the telescopic part 12 not on the same axis, the structural layout is compact, and the installation space is saved. In addition, the adjusting member 22 also simplifies the maintenance and replacement of the device. When the motor 21 or the telescopic part 12 fails, it is only necessary to remove the adjusting member 22 to separate the motor 21 from the telescopic part 12 for separate maintenance or replacement. It is worth noting that in this embodiment, the adjusting member 22 is preferably L-shaped, but its core function is to achieve the fixed connection between the output end of the motor 21 and the telescopic part 12, and to ensure that the output end of the motor 21 and the telescopic part 12 are not on the same axis to adapt to specific spatial layout requirements. Therefore, the shape of the adjusting member 22 is not limited to L-shaped, and can also be other shapes such as Z-shaped. As long as it can meet the above functional requirements, this case is not limited.
[0030] Main references Figure 2 The connecting pipe 1 includes a front pipe 11, a telescopic portion 12, and a rear pipe 13. The front pipe 11 extends into the housing 3 and is fixedly connected to one end of the telescopic portion 12. The other end of the telescopic portion 12 is fixedly connected to the rear pipe 13. The rear pipe 13 is fixedly connected to the adjustment member 22 of the adjustment device 2. The front pipe 11 is used to introduce air, the telescopic portion 12 is used to adjust the intake volume, and the rear pipe 13 is used to connect to the adjustment device 2 to drive the telescopic portion 12. The front pipe 11, the telescopic pipe, and the rear pipe 13 are screwed together in sequence to form the connecting pipe 1. This splicing connection method not only allows the components of the connecting pipe 1 to flexibly adapt to the layout of the engine air filter, but also greatly reduces subsequent maintenance costs. If a part fails or needs to be replaced, the user only needs to disassemble and replace the corresponding pipe section separately, without having to disassemble and replace the entire connecting pipe 1 assembly.
[0031] Main references Figure 2 , further comprising a fixing rod 23. The rear tube 13 is provided with a connecting hole 131. The connecting hole 131 of the rear tube 13 is sleeved on the fixing rod 23, so that the rear tube 13 slides along the fixing rod 23. The fixing rod 23 guides the adjusting device 2 to pull the telescopic part 12. That is, the fixing rod 23 is a slide rail for the adjusting device 2 to pull the telescopic part 12. The fixing rod 23 acts like a stable bracket, allowing the telescopic part 12 to extend or shorten more smoothly.
[0032] The engine is connected to the regulating device 2 via a control signal. Specifically, the engine establishes a control signal connection with the regulating device 2 via a wired or wireless manner.
[0033] The preferred design for the expansion section 12 is a bellows. This is a tubular structure composed of foldable corrugated sheets connected continuously along a specific expansion and contraction direction. Thanks to its unique structural characteristics, the bellows exhibits excellent expansion and contraction properties and high sensitivity. Once a pulling force is applied, it responds quickly and sensitively, making it suitable for applications requiring sensitive regulation of air intake, as in this case.
[0034] Obviously, the described embodiments are preferred embodiments of the present invention and should not be considered as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.
Claims
1. An air filter for a variable intake engine, comprising an engine, a housing, and a connecting pipe, wherein an air filter cavity is provided in the housing, and the connecting pipe extends into the housing and communicates with the air filter cavity, characterized in that: The engine air filter also includes a regulating device; A telescopic portion is provided at one end of the connecting pipe connected to the filter chamber of the air filter, and the telescopic portion extends or shortens along the length direction of the connecting pipe; the adjusting device is fixedly connected to the telescopic portion, the engine is connected to the adjusting device through a control signal, and the adjusting device is used to pull the telescopic portion to extend or shorten.
2. The variable intake engine air filter according to claim 1, characterized in that: The adjusting device includes a motor and an adjusting member. The engine is connected to the motor through a control signal. The output end of the motor is fixedly connected to the adjusting member. The adjusting member is fixedly connected to the telescopic part. The output end of the motor drives the adjusting member to pull the telescopic part to extend or shorten.
3. The variable intake engine air filter according to claim 2, characterized in that: The adjusting member is L-shaped, and the output end of the motor is fixedly connected to the telescopic part through the adjusting member.
4. The variable intake engine air filter according to claim 2, characterized in that: The connecting pipe includes a front pipe, a telescopic part and a rear pipe. The front pipe extends into the shell and is fixedly connected to one end of the telescopic part. The other end of the telescopic part is fixedly connected to the rear pipe. The rear pipe is fixedly connected to the adjusting member of the adjusting device.
5. The variable intake engine air filter according to claim 4, characterized in that: It also includes a fixing rod, the rear tube is provided with a connecting hole, and the connecting hole of the rear tube is sleeved on the fixing rod so that the rear tube slides along the fixing rod.
6. The variable intake engine air filter according to claim 1, characterized in that: The engine establishes a control signal connection with the regulating device in a wired or wireless manner.
7. The variable intake engine air filter according to claim 1, characterized in that: The telescopic portion is a bellows.