Motorcycle engine supercharging air filter suitable for plateau environment
By installing a pressure sensor and a fan on the motorcycle engine air filter, combined with a controller and a rotating door, low-cost pressurized air intake is achieved, solving the problem of insufficient power in high-altitude environments, improving engine power, and saving energy and protecting the environment in non-high-altitude environments.
Patent Information
- Application Number
- CN202520991289.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-20
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-05-20
AI Technical Summary
Motorcycles lack power in high-altitude environments. Existing supercharging technology is costly and complex to modify, affecting engine durability and limiting its use in non-high-altitude environments.
A pressure sensor and a fan are installed on the air filter of the motorcycle engine. The start and stop of the fan and the switching of the rotating door are controlled by the controller to achieve pressurized air intake. A pressure relief valve is added to regulate the intake air pressure. The fan is driven by a brushless motor and has aluminum alloy blades.
Without altering the air filter structure, this method achieves low-cost turbocharging, increases engine power, meets the demands of high-altitude environments, and is energy-efficient and environmentally friendly in non-high-altitude environments.
Smart Images
Figure CN223781519U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of motorcycle parts technology, and in particular relates to a motorcycle engine turbocharger air filter suitable for high-altitude environments. Background Technology
[0002] Motorcycles often experience insufficient power in high-altitude areas because the thin air and low oxygen content at high altitudes reduce the air intake, leading to incomplete combustion in the engine and a decrease in power. Therefore, a larger air intake or a more efficient combustion method is needed in high-altitude environments.
[0003] The function of an air filter is to filter the air entering the engine and keep it clean. However, in high-altitude environments, it may be necessary to use supercharging technology, such as turbocharging or supercharging, to force more air into the engine, improve combustion efficiency, and thus increase power.
[0004] Currently, turbocharger installation is costly and can negatively impact engine durability. Other alternatives include modifying the ECU and fuel system to complement turbocharging and prevent knocking or other problems; adjusting the air-fuel ratio of the carburetor or electronic fuel injection system; using higher octane fuel; and changing ignition timing to adapt to high-altitude environments. While turbocharging is effective, modifications are complex and costly, making it less feasible considering cost-effectiveness. Furthermore, its use in non-high-altitude environments is limited after modification. Utility Model Content
[0005] The present invention aims to provide a motorcycle engine turbocharger air filter that is simple in structure, easy to install, low in cost, and has a good turbocharging effect.
[0006] Therefore, the technical solution adopted by this utility model is as follows: a motorcycle engine turbocharger air filter suitable for high-altitude environments, including an air filter body, and also including a pressure sensor, a fan and a controller installed on the air filter body. The pressure sensor is used to detect the air chamber pressure of the air filter body in real time; the fan is installed at the air inlet of the air filter body for pressurizing air intake; the pressure sensor and the fan are electrically connected to the controller.
[0007] As a preferred embodiment of the above solution, the air filter body is provided with a first air inlet and a second air inlet, both of which are connected to the air outlet and are separated by a rotating door. The fan is installed at the second air inlet. When the pressure sensor detects that the air chamber pressure is less than the set value M1, the fan starts running, the rotating door rotates to close the first air inlet, and the fan pressurizes the air intake from the second air inlet. When the pressure sensor detects that the air chamber pressure is greater than or equal to the set value M2, the fan stops running, the rotating door closes the second air inlet, and the first air inlet allows normal air intake.
[0008] As another preferred embodiment of the above solution, the air filter body is provided with a first air inlet and a second air inlet, both of which are connected to the air outlet and are separated by a rotating door. The fan is installed at the second air inlet, and the air chamber of the air filter body is equipped with a pressure relief valve. When the pressure sensor detects that the air chamber pressure is less than the set value M1, the fan starts running, the rotating door rotates to close the first air inlet, and the fan pressurizes the air intake from the second air inlet. When the pressure sensor detects that the air chamber pressure is greater than the set value M2, the air chamber of the air filter body is depressurized by the pressure relief valve.
[0009] More preferably, the revolving door is equipped with a return spring, which is a torsion spring.
[0010] More preferably, the first air inlet and the second air inlet are arranged side by side on the air inlet side of the air filter body.
[0011] A further preferred embodiment is that the first air inlet is larger than the second air inlet.
[0012] More preferably, the fan is driven by a brushless motor and has aluminum alloy blades.
[0013] The beneficial effects of this utility model are: by adding a pressure sensor and a fan to the existing air filter body, it can meet the requirements of high-altitude environment for pressurized air intake; without changing the original structure of the air filter, it can achieve low-cost modification and improve engine power through the addition. Attached Figure Description
[0014] Figure 1 This is the pressurized air intake state of the fan of this utility model (without a pressure relief valve).
[0015] Figure 2 This is the normal air intake state of this utility model (equipped with a pressure relief valve). Detailed Implementation
[0016] The present invention will be further described below with reference to embodiments and accompanying drawings:
[0017] Combination Figure 1 , Figure 2 As shown, a motorcycle engine turbocharger air filter suitable for high-altitude environments mainly consists of an air filter body 1, a pressure sensor 2, a fan 3, and a controller 4 installed on the air filter body 1.
[0018] Pressure sensor 2 is used to detect the air chamber pressure of air filter body 1 in real time; fan 3 is installed at the air inlet of air filter body 1 for pressurizing air intake. Pressure sensor 2 and fan 3 are electrically connected to controller 4 respectively.
[0019] As the first specific implementation structure of the above scheme: the air filter body 1 is provided with a first air inlet 1a and a second air inlet 1b, both of which are connected to the air outlet 1c and are separated by a rotating door 5. The fan 3 is installed at the position of the second air inlet 1b. Both the first air inlet 1a and the second air inlet 1b adopt the structure of an air inlet grille.
[0020] When pressure sensor 2 detects that the air chamber pressure is less than the set value M1, fan 3 starts running, and rotating door 5 closes the first air inlet 1a, allowing fan 3 to pressurize and draw air in through the second air inlet 1b. When pressure sensor 2 detects that the air chamber pressure is greater than or equal to the set value M2, fan 3 stops running, rotating door 5 closes the second air inlet 1b, and air enters normally through the first air inlet 1a. Controller 4 controls the start and stop of fan 3 by receiving the detection signal from pressure sensor 2.
[0021] Assuming the setpoint M1 is 1 atmosphere and the setpoint M2 is 1.2 atmospheres; when pressure sensor 2 detects that the air chamber pressure is less than 1 atmosphere (e.g., the engine is in a high-altitude environment), it indicates that the intake pressure is insufficient, and the blower 3 needs to be started to boost the pressure. During the blower's boosting process, the air chamber pressure will continue to rise. When pressure sensor 2 detects that the air chamber pressure is greater than or equal to the setpoint M2, it indicates that the intake pressure is sufficient, and the blower 3 stops operating. In specific applications, the setpoints M1 and M2 can be set as needed.
[0022] As a second specific implementation of the above scheme: the air filter body 1 is provided with a first air inlet 1a and a second air inlet 1b, both of which are connected to the air outlet 1c and are separated by a rotating door 5. The fan 3 is installed at the position of the second air inlet 1b. Both the first air inlet 1a and the second air inlet 1b adopt an air inlet grille structure. The difference from the first specific implementation is that a pressure relief valve 6 is added to the air cavity of the air filter body 1, and the pressure relief valve 6 is electrically connected to the controller 4.
[0023] When pressure sensor 2 detects that the air chamber pressure is less than the set value M1, fan 3 starts running, and rotating door 5 closes the first air inlet 1a, allowing fan 3 to pressurize and draw air in through the second air inlet 1b. When pressure sensor 2 detects that the air chamber pressure is greater than the set value M2, the air chamber of air filter body 1 is depressurized through the pressure relief valve 6. At this time, fan 3 continues to run, and air is still drawn in through the second air inlet 1b. Compared to the first specific implementation structure, controller 4 needs to control the starting of fan 3, as well as the starting and stopping of pressure relief valve 6.
[0024] The rotating door 5 is equipped with a return spring, which is a torsion spring. During normal air intake, the return spring is in its initial state, closing the second air inlet 1b. When pressurized air intake is required, the fan 3 starts, and the rotating door 5 rotates under the action of air pressure, closing the first air inlet 1a. At this time, the return spring is in a compressed state. After the pressurized air intake is completed, the rotating door 5 returns to its initial position under the action of the return spring.
[0025] Ideally, the first air inlet 1a and the second air inlet 1b are arranged side by side on the air intake side of the air filter body 1. In this design, the first air inlet 1a and the second air inlet 1b are arranged side by side, with the first air inlet 1a being larger than the second air inlet 1b. The first air inlet 1a or the second air inlet 1b is selected for air intake by rotating the door 5. The reasons are: (a) The fan has a separate air inlet, which is smaller than the normal air inlet, which is more conducive to pressurized air intake; the air inlet is usually matched with the cross-sectional size of the fan; (b) the two air inlets are opened separately to avoid air leakage from the other air inlet when one air inlet is intake, especially when pressurized air intake is required; (3) when in a non-altitude environment, the fan does not need to be started and the first air inlet 1a is used for air intake; when in an alpine environment, the second air inlet 1b is used for air intake. Compared with the traditional pressurized air filter, it can meet the needs of both non-alpine and alpine environments at the same time, and is more energy-efficient and environmentally friendly.
[0026] Ideally, fan 3 should be driven by a brushless motor, the fan speed should be adjustable, and the fan blades should be made of aluminum alloy.
Claims
1. A turbocharged air filter for motorcycle engines suitable for high-altitude environments, comprising an air filter body (1), characterized in that: It also includes a pressure sensor (2), a fan (3) and a controller (4) installed on the air filter body (1). The pressure sensor (2) is used to detect the air chamber pressure of the air filter body (1) in real time. The fan (3) is installed at the air inlet of the air filter body (1) for pressurizing the air intake. The pressure sensor (2) and the fan (3) are electrically connected to the controller (4) respectively. The air filter body (1) is provided with a first air inlet (1a) and a second air inlet (1b). Both the first air inlet (1a) and the second air inlet (1b) are connected to the air outlet (1c) and a rotating door (5) is provided between them. The fan (3) is installed at the second air inlet (1b). When the pressure sensor (2) detects that the air cavity pressure is less than the set value M1, the fan (3) starts running, the rotating door (5) rotates to close the first air inlet (1a), and the fan (3) pressurizes the air inlet from the second air inlet (1b); when the pressure sensor (2) detects that the air cavity pressure is greater than or equal to the set value M2, the fan (3) stops running, the rotating door (5) closes the second air inlet (1b), and the first air inlet (1a) is used for normal air intake.
2. A turbocharged air filter for motorcycle engines suitable for high-altitude environments, comprising an air filter body (1), characterized in that: It also includes a pressure sensor (2), a fan (3) and a controller (4) installed on the air filter body (1). The pressure sensor (2) is used to detect the air chamber pressure of the air filter body (1) in real time. The fan (3) is installed at the air inlet of the air filter body (1) for pressurizing the air intake. The pressure sensor (2) and the fan (3) are electrically connected to the controller (4) respectively. The air filter body (1) is provided with a first air inlet (1a) and a second air inlet (1b). Both the first air inlet (1a) and the second air inlet (1b) are connected to the air outlet (1c) and a rotating door (5) is provided between them. The fan (3) is installed at the second air inlet (1b). The air chamber of the air filter body (1) is equipped with a pressure relief valve (6); when the pressure sensor (2) detects that the air chamber pressure is less than the set value M1, the fan (3) starts to run, the rotating door (5) rotates to close the first air inlet (1a), and the fan (3) pressurizes the air inlet from the second air inlet (1b); when the pressure sensor (2) detects that the air chamber pressure is greater than the set value M2, the air chamber of the air filter body (1) is depressurized through the equipped pressure relief valve (6).
3. The motorcycle engine turbocharger air filter suitable for high-altitude environments according to claim 2, characterized in that: The rotating door (5) is equipped with a return spring, which is a torsion spring.
4. The motorcycle engine turbocharger air filter suitable for high-altitude environments according to claim 2, characterized in that: The first air inlet (1a) and the second air inlet (1b) are arranged side by side on the air inlet side of the air filter body (1).
5. The motorcycle engine turbocharger air filter suitable for high-altitude environments according to claim 2, characterized in that: The first air inlet (1a) is larger than the second air inlet (1b).
6. The motorcycle engine turbocharger air filter suitable for high-altitude environments according to claim 2, characterized in that: The fan (3) is driven by a brushless motor and has aluminum alloy blades.