Off-road motorcycles with efficient air intake structure

Abstract

This invention discloses an off-road motorcycle with a high-efficiency air intake structure. It features two power sources and integrates the battery with the air intake system to form a combined heat dissipation and air intake structure. This achieves control over battery heat dissipation, internal combustion engine intake speed, and intake temperature, and provides unified control over driving speed and temperature based on the power supply method. This application utilizes an air intake box with intake structures and batteries located on the front and rear sides. The intake structure divides the front of the air intake box into an outer channel and a middle channel. During air intake, a blower motor drives a rotating cylinder. The inner fan blades within the rotating cylinder create airflow in the middle channel to supply air to the internal combustion engine. Simultaneously, the outer fan blades follow the rotating cylinder, drawing in external air into the air intake box and dissipating heat from the power source. Furthermore, the outer fan blades can rotate on their own axis while rotating with the cylinder to adaptively adjust and provide higher intake efficiency. They also automatically change the intake direction, creating multi-directional airflow within the air intake box for comprehensive battery cooling.

Description

Technical Field

[0001] This invention relates to new energy motorcycles, and more particularly to off-road motorcycles with a high-efficiency air intake structure. Background Technology

[0002] Motocross, also known as off-road two-wheeled motorcycles, is a type of motorcycle used in closed off-road tracks for motorsports or all-terrain vehicle racing.

[0003] Currently, most off-road motorcycles on the market use a bottom-mounted air intake design. This not only leads to low air intake efficiency, but also makes it easy for dirt to get in due to the low bottom position. This problem is even more serious when off-roading in mountainous terrain. In addition, most existing motorcycles use a naturally aspirated air intake system, which draws in air by creating negative pressure when the piston moves. This seriously affects air intake efficiency. To address this, some motorcycles use turbochargers to improve air intake efficiency. However, turbochargers suffer from turbo lag, which means that air intake efficiency cannot be improved at idle and low speeds, resulting in insufficient power output. Summary of the Invention

[0004] In view of the shortcomings of existing technologies, such as the low intake efficiency of naturally aspirated systems and the turbo lag problem of turbochargers, this invention provides an off-road motorcycle with a highly efficient intake structure.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is as follows: an off-road motorcycle with a high-efficiency air intake structure, including a motorcycle body with a hybrid power system, the hybrid power system including a new energy internal combustion engine, a generator driven by the new energy internal combustion engine and a drive motor driven by a new energy battery, the generator being electrically connected to the new energy battery, the motorcycle body including a frame, the engine being mounted on the frame, an air intake box being provided on the frame, an installation space being provided inside the air intake box, a new energy battery being placed inside the air intake box, an exhaust port being provided at one end of the air intake box, the exhaust port being connected to the air intake port of the engine through a pipe, and an air intake structure being provided inside the air intake box;

[0006] The intake structure includes:

[0007] Air vents, including multiple vents, are disposed on the side wall of the air intake box;

[0008] A circular mounting platform surrounds the exhaust port on its inner side;

[0009] A rotating cylinder is mounted on an annular mounting platform. It has an internal gear ring and an external gear ring. Its inner wall is provided with an internal fan blade that generates air suction. Several rotating shafts are provided through its side wall. The outer end of the rotating shaft is provided with an external fan blade, and the inner end of the rotating shaft is provided with a bevel gear.

[0010] The blower motor is located outside the air intake box, and its output shaft extends into the air intake box and is connected to a gear, which meshes with an external gear ring.

[0011] The planetary gear system includes a sun gear and planet gears. The planet gears mesh with both the internal gear ring and the sun gear. The sun gear has an axle, and the axle has bevel gears. Each bevel gear meshes with the bevel gear. This design incorporates an air intake box with intake structures and a battery on its front and rear sides. The intake structure divides the front of the air intake box into an outer channel and a middle channel. During intake, a blower motor drives a rotating cylinder. The inner fan blades inside the rotating cylinder create suction in the middle channel to supply air to the internal combustion engine. Simultaneously, the outer fan blades follow the rotating cylinder, drawing in external air into the air intake box and cooling the power supply. Furthermore, the outer fan blades can rotate on their own axis while rotating with the cylinder to adaptively adjust and provide higher intake efficiency. They also automatically change the intake direction, creating multi-directional airflow within the air intake box for comprehensive battery cooling.

[0012] Preferably, the vents include several forward vents on the outer periphery of the front side of the air intake box and several rear exhaust vents located on the rear side of the air intake box. The air intake structure and the new energy battery are located in the middle of the air intake box and are positioned opposite each other. In this design, the forward vents are used for air intake, and the rear exhaust vents are used for air exhaust. Part of the gas drawn in through the forward vents is used to cool the battery and is then discharged through the rear exhaust vents, while part is drawn into the internal combustion engine for oxygen supply.

[0013] Preferably, the diameter of the front air intake is larger than that of the rear exhaust port, and an air filter and temperature sensor are installed at the front air intake. This design, by differentiating the diameters of the front and rear exhaust ports, allows for better distribution of intake air.

[0014] Preferably, a detachable sealing device is installed at the rear exhaust port. This solution uses a sealing device to block the rear exhaust port, allowing more gas to be forced into the internal combustion engine during medium-to-high-speed driving. At this time, since the power of the internal combustion engine is used for the motorcycle's propulsion, the battery is not charged, and the battery's heat dissipation requirements are relatively low.

[0015] Preferably, the inner wall of the rear part of the air intake box has four arc surfaces, and the junctions of the four arc surfaces are smoothly transitioned by the arc surfaces. The new energy battery is suspended relative to the rear inner wall of the air intake box. The rear exhaust port is located at the center of the rear part of the air intake box, and the sealing device is an opening adjustment valve located at the rear exhaust port to adjust the size of the air inlet. In this design, the arc surface can form an air guide surface. After the air intake from the outer channel flows backward along the arc-shaped inner wall, it is blown into the internal combustion engine from the middle channel. At the same time, the rear exhaust port is located in the middle position and the opening adjustment valve is set to control the size of its opening. When the battery heats up a lot, the opening is increased to increase the exhaust of air after heat dissipation. When the battery heats up a little, the rear exhaust port is reduced or closed, so that some airflow automatically flows from the outer channel to the middle channel to utilize the airflow generated during driving. In addition, the intake air temperature is detected by a temperature sensor installed at the pipeline and controlled between 10-50 degrees Celsius. When the temperature exceeds 50 degrees Celsius, the intake air temperature is controlled between 10-50 degrees Celsius. In high temperatures, the opening of the regulating valve is increased to expel the hot gas after heat dissipation, while the intake air speed is controlled by the speed of the blower motor. In low temperatures during winter, the opening of the regulating valve is reduced to allow the hot gas to be blown into the internal combustion engine. This process is uniformly controlled by the motorcycle's controller, in which the opening regulating valve and various sensors are connected to the motorcycle's controller. The indicators that need to be adjusted include the speed of the blower motor and the opening of the regulating valve. The adjustment is based on the intake air temperature, vehicle speed, whether the battery is charging, and the power supply mode of driving. It should be noted that when the pure electric power supply is used, the blower motor does not work, and the battery is cooled by the airflow generated by driving.

[0016] Preferably, the rotating shaft has several shafts arranged in a circular array on the rotating cylinder, and the angle between each outer fan blade and the horizontal plane is different when the outer fan blades rotate to the same position. This solution improves the uniformity of heat dissipation by setting the angle of the outer fan blades so that different outer fan blades generate airflow in different directions when they rotate to the same position.

[0017] Preferably, the air intake box also includes a locking structure, which comprises a planetary carrier mounted on the planetary gears, a locking cylinder mounted on the planetary carrier, a ring of circumferentially arranged locking external teeth on the side wall of the locking cylinder, and a telescopic motor located within the air intake box. The output end of the telescopic motor has an arc-shaped locking block with locking teeth. When the telescopic motor extends, the locking teeth engage with the locking external teeth to lock the planetary carrier. The telescopic motor is also connected to a controller. Only after the locking motor has locked and limited the planetary carrier will the outer fan blades be driven to rotate. This mode is used to generate cooling airflow in all directions of the air intake box during hot summer months, improving heat dissipation efficiency.

[0018] Preferably, the inner fan blade includes several blades and a collar, the axle passes through the collar and rotatably engages with the collar, and the end of the axle is provided with a detachable limiting head. This design can increase the stability of the planetary structure.

[0019] Preferably, the front of the air intake box has an exhaust channel with a gradually decreasing diameter. The exhaust channel is connected to the engine's air intake pipe, and an air flow sensor is installed at the pipe. In this design, the air flow sensor is used in conjunction with the motorcycle's gear position to adjust the speed of the blower motor, thereby controlling the intake air volume.

[0020] Preferably, the hybrid power system also includes a power shaft, a set of sprockets mounted on the rear wheel and the power shaft, a chain connecting the sprockets, a drive motor output shaft connected to the power shaft via a clutch, and an engine crankshaft connected to the gearbox and then connected to the output shaft and the generator input shaft via a clutch.

[0021] Compared with the prior art, the advantages of the present invention are as follows: This application sets up an air intake box and sets up an air intake structure and a battery on the front and rear sides of the air intake box respectively. The air intake structure divides the front side of the air intake box into an outer channel and a middle channel. During air intake, the blower motor drives the rotating cylinder to rotate. The inner fan blades in the rotating cylinder form a suction in the middle channel to supply air to the internal combustion engine. At the same time, the outer fan blades follow the rotating cylinder to draw in external air into the air intake box and dissipate heat from the power supply. In addition, the outer fan blades can rotate on their own when they follow the rotating cylinder to adaptively adjust and thus provide higher air intake efficiency. At the same time, they automatically change the air intake direction to form a multi-directional airflow in the air intake box to dissipate heat from the battery in all directions. Attached Figure Description

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the invention. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0023] Figure 1 This is a side view of this application;

[0024] Figure 2 This is a perspective view of the present application;

[0025] Figure 3 This is a partial structural diagram of this application;

[0026] Figure 4 This is an exploded view of the air intake structure;

[0027] Figure 5 This is a three-dimensional diagram of the air intake structure;

[0028] Figure 6 This is a cross-sectional view of the air intake structure;

[0029] Figure 7 and Figure 8 This is a three-dimensional view of the internal parts of the air intake structure.

[0030] Figure 9 This is an exploded view of the internal parts of the air intake structure.

[0031] In the diagram: 10. Motorcycle body; 101. Internal combustion engine; 20. Intake structure; 200. Locking structure; 2001. Telescopic motor; 2002. Locking block; 201. Intake box; 2011. Front air port; 2012. Exhaust port; 2013. Rear exhaust port; 202. Pipeline; 203. Blower motor; 2031. Gear; 204. Rotating cylinder; 2041. Internal gear ring; 2042. External gear ring; 205. Internal fan blade; 2051. Collar; 2061. Bevel gear; 2062. Shaft; 2063. External fan blade; 207. Bevel gear; 2081. Axle; 2082. Sun gear; 2083. Limit head; 2091. Locking cylinder; 2092. Locking external gear; 2093. Planetary carrier; 2094. Planetary gear. Detailed Implementation

[0032] Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely descriptive and exemplary and should not be construed as limiting the scope of protection of the present invention.

[0033] It should be noted that similar labels in the following figures indicate similar items; therefore, once an item is defined in one figure, it may not be further defined and explained in subsequent figures. Example

[0034] This embodiment mainly describes the title of an off-road motorcycle with a high-efficiency air intake structure. The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an off-road motorcycle with a high-efficiency air intake structure, such as... Figure 1-9 As shown, a motorcycle body 10 with a hybrid power system is included. The hybrid power system includes a new energy internal combustion engine 101, a generator driven by the new energy internal combustion engine 101, and a drive motor driven by a new energy battery. The generator is electrically connected to the new energy battery. The motorcycle body 10 includes a frame, an engine mounted on the frame, an air intake box 201 on the frame, an installation space inside the air intake box 201, a new energy battery mounted inside the air intake box 201, an exhaust port 2012 at one end of the air intake box 201, and the exhaust port 2012 is connected to the engine's air intake port through a pipe 202. An air intake structure 20 is provided inside the air intake box 201.

[0035] The intake structure 20 includes:

[0036] Air vents, including multiple vents, are disposed on the side wall of the air intake box 201;

[0037] A circular mounting platform surrounds the exhaust port 2012 on its inner side;

[0038] A rotating cylinder 204 is rotatably mounted on an annular mounting platform. It has an internal gear ring 2041 and an external gear ring 2042. An internal fan blade 205 that generates air suction is provided on its inner wall. Several rotating shafts 2062 are provided through its side wall. An external fan blade 2063 is provided at the outer end of the rotating shaft 2062. A bevel gear 2061 is provided at the inner end of the rotating shaft 2062.

[0039] The blower motor 203 is located outside the air intake box 201 and its output shaft extends into the air intake box 201 and is connected to a gear 2031, which meshes with the external gear ring 2042.

[0040] The planetary gear 2031 includes a sun gear 2082 and a planet gear 2094. The planet gear 2094 meshes with both the internal gear ring 2041 and the sun gear 2082. The sun gear 2082 is provided with a shaft 2081, and the shaft 2081 is provided with a bevel gear 207. Each bevel gear 2061 meshes with the bevel gear 207. This solution involves setting up an air intake box 201, with an air intake structure 20 and a battery respectively installed on the front and rear sides of the air intake box 201. The air intake structure 20 divides the front of the air intake box 201 into an outer channel and a middle channel. During air intake, a blower motor 203 drives a rotating cylinder 204 to rotate. The inner fan blades 205 inside the rotating cylinder 204 form a suction in the middle channel to supply air to the internal combustion engine 101. At the same time, the outer fan blades 2063 follow the rotating cylinder 204 to draw in external air into the air intake box 201 and dissipate heat from the power supply. In addition, the outer fan blades 2063 can rotate on their own while following the rotating cylinder 204 to adaptively adjust and provide higher air intake efficiency. At the same time, they automatically change the air intake direction to form a multi-directional airflow within the air intake box 201 to dissipate heat from the battery in all directions.

[0041] Preferably, the vents include a plurality of forward air vents 2011 on the front periphery of the air intake box 201 and a plurality of rear exhaust vents 2013 disposed on the rear side of the air intake box 201. The air intake structure 20 and the new energy battery are disposed in the middle of the air intake box 201 and are positioned opposite each other. In this design, the forward air vents 2011 are used for air intake, and the rear exhaust vents 2013 are used for air exhaust. Part of the gas drawn in by the forward air vents 2011 is used to cool the battery and is then discharged from the rear exhaust vents 2013, while part is drawn into the internal combustion engine 101 for oxygen supply.

[0042] Preferably, the diameter of the front air intake 2011 is larger than the diameter of the rear exhaust port 2013, and an air filter and temperature sensor are installed at the front air intake 2011. This design can better distribute the intake air by differentiating the diameters of the front and rear exhaust ports 2013.

[0043] Preferably, a sealing device is detachably provided at the rear exhaust port 2013. This solution uses a sealing device to block the rear exhaust port 2013, so that more gas is forced into the internal combustion engine 101 during medium-to-high-speed driving. At this time, since the power of the internal combustion engine 101 is used for the motorcycle's driving, the battery is not charged, and the battery's heat dissipation requirement is small.

[0044] Preferably, the inner wall of the rear part of the air intake box 201 has four arc surfaces, and the junction of the four arc surfaces is smoothly transitioned by the arc surfaces. The new energy battery is suspended relative to the rear inner wall of the air intake box 201. The rear exhaust port 2013 is located at the center of the rear part of the air intake box 201. The sealing device is an opening adjustment valve located at the rear exhaust port 2013 for adjusting the size of the air port. In this design, the curved surface forms an air guide. Air intake from the outer channel flows backward along the inner wall of the curved surface and then converges towards the center, being blown into the internal combustion engine 101 from the central channel. Simultaneously, the rear exhaust port 2013 is positioned in the center and equipped with an opening adjustment valve to control its size. When the battery heats up significantly, the opening is increased to facilitate the expulsion of air after heat dissipation. Conversely, when the battery heats up less, the rear exhaust port 2013 is reduced or closed, allowing some airflow to automatically flow from the outer channel to the central channel, utilizing the airflow generated during driving. Furthermore, a temperature sensor located at pipe 202 detects the intake air temperature and controls it between 10 and 50 degrees Celsius. When the temperature is too high, the opening of the regulating valve is increased to expel the high-temperature gas after heat dissipation. At the same time, the air intake speed is controlled by the speed of the blower motor 203. In winter when the temperature is low, the opening of the regulating valve is reduced to blow the heat-dissipated gas into the internal combustion engine 101. This process is uniformly controlled by the motorcycle's controller, in which the opening regulating valve and various sensors are connected to the motorcycle's controller. The indicators that need to be adjusted include the speed of the blower motor 203 and the opening of the opening regulating valve. The adjustment is based on the intake air temperature, vehicle speed, whether the battery is charging, and the driving power supply mode. It should be noted that when the pure electric power supply is used, the blower motor 203 does not work, and the battery heat dissipation is completed by the airflow generated by driving.

[0045] Preferably, the rotating shaft 2062 is provided with several shafts arranged in a ring array on the rotating cylinder 204, and the angle between each outer fan blade 2063 and the horizontal plane is different when the blades rotate to the same position. This solution improves the uniformity of heat dissipation by setting the angle of the outer fan blades 2063 so that different outer fan blades 2063 generate airflow in different directions when they rotate to the same position.

[0046] Preferably, the air intake box 201 also includes a locking structure 200, which comprises a planetary carrier 2093 mounted on the planetary gear 2094, a locking cylinder 2091 mounted on the planetary carrier 2093, a circumferentially arranged locking external teeth 2092 on the side wall of the locking cylinder 2091, and a telescopic motor 2001 mounted inside the air intake box 201. The output end of the telescopic motor 2001 has an arc-shaped locking block 2002 with locking teeth. When the telescopic motor 2001 extends, the locking teeth engage with the locking external teeth 2092 to lock the planetary carrier 2093. The telescopic motor 2001 is also connected to a controller. Only after the locking motor has locked and limited the planetary carrier 2093 will the outer fan blade 2063 be driven to rotate. This mode is used to generate cooling airflow in all directions of the air intake box 201 during hot summer months, thereby improving heat dissipation efficiency.

[0047] Preferably, the inner fan blade 205 includes several blades and a collar 2051, with the axle 2081 passing through and rotatably engaging with the collar 2051, and the end of the axle 2081 having a detachable limiting head 2083. This design can increase the stability of the planetary structure.

[0048] Preferably, the front side of the air intake box 201 is provided with an exhaust channel with a gradually decreasing diameter. The exhaust channel is connected to the engine intake pipe 202, and an air flow sensor is provided at the pipe 202. In this design, the air flow sensor is used in conjunction with the motorcycle's gear position to adjust the speed of the blower motor 203, thereby controlling the intake air volume.

[0049] Preferably, the hybrid power system also includes a power shaft, a set of sprockets mounted on the rear wheel and the power shaft, a chain connecting the sprockets, a drive motor output shaft connected to the power shaft via a clutch, and an engine crankshaft connected to the gearbox and then connected to the output shaft and the generator input shaft via a clutch.

[0050] The above provides a detailed description of the off-road motorcycle with a high-efficiency air intake structure provided by the present invention. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only for the purpose of helping to understand the present invention and its core ideas. It should be noted that for those skilled in the art, several improvements and modifications can be made to the present invention without departing from the principles of the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. An off-road motorcycle with a high-efficiency air intake structure, comprising a motorcycle body with a hybrid power system, the hybrid power system comprising a new energy internal combustion engine, a generator driven by the new energy internal combustion engine, and a drive motor driven by a new energy battery, the generator being electrically connected to the new energy battery, characterized in that, The motorcycle body includes a frame, an engine mounted on the frame, an air intake box on the frame, an installation space inside the air intake box, a new energy battery inside the air intake box, an exhaust port at one end of the air intake box, and the exhaust port is connected to the engine's air intake port through a pipe. The air intake box contains an air intake structure. The intake structure includes: Air vents, including multiple vents, are disposed on the side wall of the air intake box; A circular mounting platform surrounds the exhaust port on its inner side; A rotating cylinder is mounted on an annular mounting platform. It has an internal gear ring and an external gear ring. Its inner wall is provided with an internal fan blade that generates air suction. Several rotating shafts are provided through its side wall. The outer end of the rotating shaft is provided with an external fan blade, and the inner end of the rotating shaft is provided with a bevel gear. The blower motor is located outside the air intake box, and its output shaft extends into the air intake box and is connected to a gear, which meshes with an external gear ring. A planetary gear includes a sun gear and planet gears. The planet gears mesh with both the internal gear ring and the sun gear. The sun gear has a shaft, and the shaft has bevel gears. Each bevel gear meshes with the bevel gear. The inner fan blade includes several blades and a collar. The axle passes through the collar and rotates with it. The end of the axle is provided with a detachable limiting head.

2. The off-road motorcycle with a high-efficiency air intake structure according to claim 1, characterized in that, The air vents include several front air vents on the outer periphery of the front side of the air intake box and several rear air vents located on the rear side of the air intake box. The air intake structure and the new energy battery are located in the middle of the air intake box and are opposite each other.

3. The off-road motorcycle with a high-efficiency air intake structure according to claim 2, characterized in that, The diameter of the front air vent is larger than that of the rear air vent, and an air filter and temperature sensor are installed at the front air vent.

4. The off-road motorcycle with a high-efficiency air intake structure according to claim 3, characterized in that, A removable sealing device is provided at the rear exhaust port.

5. The off-road motorcycle with a high-efficiency air intake structure according to claim 4, characterized in that, The inner wall of the rear part of the air intake box has four arc surfaces, and the junction of the four arc surfaces is smoothly transitioned by the arc surface. The new energy battery is suspended relative to the rear inner wall of the air intake box. The rear exhaust port is located at the center of the rear part of the air intake box. The sealing device is an opening adjustment valve located at the rear exhaust port to adjust the size of the air port.

6. The off-road motorcycle with a high-efficiency air intake structure according to claim 1, characterized in that, Several shafts are arranged in a circular array on the rotating cylinder, and the angle between each outer fan blade and the horizontal plane is different when the outer fan blades rotate to the same position.

7. The off-road motorcycle with a high-efficiency air intake structure according to claim 1, characterized in that, The air intake box is also equipped with a locking structure, which includes a planet carrier mounted on the planet gear, a locking cylinder mounted on the planet carrier, a circumferentially arranged locking external teeth on the side wall of the locking cylinder, and a telescopic motor mounted in the air intake box. The output end of the telescopic motor is equipped with an arc-shaped locking block with locking teeth. When the telescopic motor extends, the locking teeth engage with the locking external teeth to lock the planet carrier.

8. The off-road motorcycle with a high-efficiency air intake structure according to claim 1, characterized in that, The front of the air intake box is equipped with an exhaust channel with a gradually decreasing diameter. The exhaust channel is connected to the engine intake pipe, and an air flow sensor is installed at the pipe.

9. The off-road motorcycle with a high-efficiency air intake structure according to claim 1, characterized in that, The hybrid system also includes a drive shaft, a set of sprockets mounted on the rear wheel and the drive shaft, a chain connecting the sprockets, a drive motor output shaft connected to the drive shaft via a clutch, and an engine crankshaft connected to the gearbox and then connected to the output shaft and the generator input shaft via a clutch.

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