Motorcycle

Abstract

The application relates to the field of vehicle technology and discloses a motorcycle. The motorcycle comprises a frame, a cooling system and a body covering. The frame comprises a front frame and a middle frame connected in sequence, and the middle frame is provided with a front footrest support. The cooling system comprises a radiator connected with the front frame or the middle frame. The body covering comprises an inner lining plate and two side guards, the two side guards are respectively arranged on both sides of the radiator along the width direction of the motorcycle and at least partially cover the front frame or the middle frame, and the side guards form a receiving space above the front footrest support. The inner lining plate comprises a wind guide part arranged in the interval between the side guard and the radiator, one side of the wind guide part is connected with the side guard, and the other side of the wind guide part substantially abuts against the radiator; the wind guide part is provided with a front air hole penetrating through the wind guide part along the length direction of the motorcycle, and the front air hole is communicated with the receiving space. The motorcycle has high riding comfort.

Description

Technical Field

[0001] This application relates to the field of vehicle technology, and more specifically, to a motorcycle. Background Technology

[0002] Motorcycles are typically equipped with radiators to cool components such as the engine or motor, thereby extending their lifespan. Motorcycle radiators are generally air-cooled. When the motorcycle is in motion, cool air from the front flows through the radiator, absorbing heat and forming hot air. This hot air then carries away the heat transferred from the engine or motor to the radiator, thus cooling the engine or motor.

[0003] To improve the heat exchange efficiency of the radiator and enhance the cooling effect on components such as the engine or motor, the radiator is often equipped with inner lining plates on both sides. The inner lining plates can guide airflow towards the radiator to increase the flow rate of gas passing through the radiator.

[0004] Currently, radiators are generally installed above the footrests of motorcycles. When riding a motorcycle, the air flowing through the radiator absorbs heat from the radiator and forms hot air. The hot air flows towards the rider's legs or feet, causing the temperature around the rider's legs or feet to rise, resulting in poor riding comfort. Utility Model Content

[0005] In view of this, this application provides a motorcycle with better riding comfort.

[0006] One embodiment of this application provides a motorcycle, including a frame, a running gear system, a power system, a cooling system, and a body panel. The frame includes a front frame, a middle frame, and a rear frame connected sequentially, with the middle frame providing a front footrest support. The running gear includes a front wheel and a rear wheel, with at least a portion of the front wheel located below the front frame and at least a portion of the rear wheel located below the rear frame. The power system is at least partially supported by the middle frame and drives the front wheel and / or the rear wheel. The cooling system includes a radiator, which is located between the front footrest support and the front wheel along the length of the motorcycle and connected to the front frame or the middle frame. The body panels include an inner liner and two side skirts. The two side skirts are located on either side of the radiator along the width of the motorcycle and at least partially cover the front or mid-frame. The side skirts form a space above the front footrests to accommodate legs. A gap exists between the side skirts and the radiator, and the inner liner is located within this gap. The inner liner includes an air guide, one side of which connects to the side skirt, and the other side substantially abuts against the radiator. The air guide has a front ventilation hole that extends along the length of the motorcycle and communicates with the accommodating space.

[0007] In some embodiments of this application, the inner liner further includes a support portion located behind the air guide portion; the support portion connects the air guide portion and the side guard plate, and the support portion has a rear ventilation hole that extends through the support portion along the length direction of the motorcycle and communicates with the receiving space. A reference plane perpendicular to the length direction of the motorcycle is defined, and the outline of the orthographic projection of the front ventilation hole onto the reference plane at least partially overlaps with the outline of the orthographic projection of the rear ventilation hole onto the reference plane.

[0008] In some embodiments of this application, the outline of the front ventilation hole projected onto the reference plane is located inside the outline of the rear ventilation hole projected onto the reference plane.

[0009] In some embodiments of this application, the inner lining plate further includes a sealing part, which connects the air guide part and the support part. The air guide part, the support part, the sealing part, and the side guard plate together form a basically enclosed space; the front ventilation hole and the rear ventilation hole are both located inside the enclosed space.

[0010] In some embodiments of this application, a reference plane perpendicular to the length direction of the motorcycle is defined. The outline of the radiator projected onto the reference plane is the first outline, and the outline of the front vent projected onto the reference plane is the second outline. Both the first and second outlines are substantially rectangular. The average width of the first outline is D1, the average height of the first outline is H1, the average width of the second outline is D2, and the average height of the second outline is H2. K1 = D2 / D1 and K2 = H2 / H1 are defined; the value of K1 ranges from 0.01 to 0.05, and the value of K2 ranges from 0.1 to 0.5.

[0011] In some embodiments of this application, the value of K1 ranges from 0.02 to 0.03.

[0012] In some embodiments of this application, the value of K2 ranges from 0.2 to 0.3.

[0013] In some embodiments of this application, the air guide is provided on the side of the air guide away from the receiving space along the length direction of the motorcycle, defining a reference plane that is perpendicular to the height direction of the motorcycle and passes through the front footrest bracket. The distance between the guide and the reference plane gradually decreases along the length direction of the motorcycle from front to back. Along the length direction of the motorcycle, at least a portion of the guide is located in front of the front ventilation hole, and along the height direction of the motorcycle, at least a portion of the guide is located above the front ventilation hole.

[0014] In some embodiments of this application, multiple guide strips are spaced apart along the height direction of the motorcycle.

[0015] In some embodiments of this application, the air guide is located on one side of the radiator along the width direction of the motorcycle. The cooling system also includes a coolant reservoir, a coolant pipe, and a coolant pump. The coolant reservoir is located on the side of the radiator away from the air guide along the width direction of the motorcycle and is located in the gap between the radiator and the side guard plate on the corresponding side. At least one of the central frame, the front frame, and the side guard plate is connected to the coolant reservoir. The coolant pump is connected to the coolant reservoir and the radiator through the coolant pipe. There is a gap between the coolant reservoir and the side guard plate or the radiator to provide a receiving space for gas to flow to the corresponding side.

[0016] With the above-described configuration, when riding the motorcycle of this application, the low-temperature gas in front of the motorcycle can flow from the front ventilation hole to the containment space during the motorcycle's operation, thereby cooling the gas in the containment space and reducing the temperature of the gas in the containment space, thereby reducing the temperature around the rider's legs and feet, thus improving riding comfort. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a motorcycle provided in one embodiment of this application;

[0018] Figure 2 This is a partial structural schematic diagram of a motorcycle provided in one embodiment of this application;

[0019] Figure 3 yes Figure 1 A front view of a portion of the motorcycle's structure provided in the image;

[0020] Figure 4 This is a schematic diagram of a first profile and a second profile provided in an embodiment of this application;

[0021] Figure 5 This is a top view schematic diagram of a portion of the structure of a motorcycle provided in an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of the structure of the inner lining plate and the lower guard plate provided in one embodiment of this application;

[0023] Figure 7 yes Figure 6 A schematic diagram of the inner lining and lower guard plate provided in the image from another perspective. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the application.

[0026] The term “and / or” as used herein includes any and all combinations of one or more of the related listed items.

[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be interpreted as indicating or implying relative importance.

[0028] In this article, when describing two structures as connected, it means that fluid can flow between the two structures. For example, "the front vent is connected to the containment space" means that the gas in the front vent can flow into the containment space.

[0029] In this article, when describing the range of values ​​for a parameter, the parameter can take any endpoint of the range. For example, "the range of K1 is 0.01 to 0.05", then in addition to taking any value between 0.01 and 0.05, K1 can also take either 0.01 or 0.05.

[0030] The following detailed description of some embodiments of this application is provided in conjunction with the accompanying drawings. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0031] Reference Figure 1 This application provides an embodiment of a motorcycle 100. In some embodiments, the motorcycle 100 is a two-wheeled motorcycle. In other embodiments, the motorcycle 100 may be a three-wheeled motorcycle. In still other embodiments, the motorcycle 100 may also be a four-wheeled motorcycle or other types of motorcycle 100.

[0032] The motorcycle 100 includes a frame 11, a running system 12, a power system 13, a cooling system 14, and a body panel 15.

[0033] For ease of description, the definitions are as follows: Figure 1 The directions shown are front, back, left, right, up, and down. The front-back direction represents the length of the motorcycle 100, the left-right direction represents the width of the motorcycle 100, and the up-down direction represents the height of the motorcycle 100. It should be noted that the directions in this application refer to the directions when the motorcycle 100 is on a horizontal plane.

[0034] Reference Figure 1 and Figure 2The frame 11 includes a front frame 111, a middle frame 112, and a rear frame 113, which are arranged and connected sequentially from front to back in the front-to-back direction. Optionally, the frame 11 can be divided into five equal parts in the front-to-back direction. The two parts at the foremost end can be defined as the front frame 111, the part at the rearmost end can be defined as the rear frame 113, and the remaining parts can be defined as the middle frame 112. Figure 2 The dashed lines in the diagram are used to separate the five equal sections. In other embodiments, the front frame 111, the middle frame 112, and the rear frame 113 may be divided in other ways.

[0035] The middle frame 112 is provided with front footrest brackets 1121. There are two front footrest brackets 1121, one of which is located on the left side of the middle frame 112 and the other is located on the right side of the middle frame 112.

[0036] Optionally, the rear frame 113 is provided with a rear footrest bracket 1131. There are two rear footrest brackets 1131, one of which is located on the left side of the rear frame 113 and the other is located on the right side of the rear frame 113.

[0037] The walking system 12 includes a front wheel 121 and a rear wheel 122. At least a portion of the front wheel 121 is located below the front frame 111 and is rotatably connected to the front frame 111. At least a portion of the rear wheel 122 is located below the rear frame 113 and is rotatably connected to the rear frame 113.

[0038] The power system 13 is at least partially supported by the central frame 112 and is connected to the front wheel 121 and / or the rear wheel 122 to drive the front wheel 121 or the rear wheel 122 to rotate.

[0039] For example, the power system 13 includes an engine 131, at least a portion of which is supported by and connected to the mid-frame 112, and the engine 131 is connected to the rear wheel 122 via a transmission structure to drive the rear wheel 122 to rotate; in the vertical direction, the engine 131 is substantially located above the front footrest brackets 1121, and in the horizontal direction, the engine 131 is substantially located between the two front footrest brackets 1121.

[0040] In some other embodiments, the power system 13 may include a drive motor, which is at least partially supported by and connected to the mid-frame 112; the drive motor may be a hub motor integrated with the rear wheel 122 or a wheel-side motor mounted on the rear swingarm, and the drive motor may also be located substantially between the two front pedal supports 1121.

[0041] The cooling system 14 includes a radiator 141. In the longitudinal direction, the radiator 141 is located between the front pedal support 1121 and the front wheel 121 and is connected to the front frame 111, i.e., the radiator 141 is located in front of the front pedal support 1121; in the vertical direction, the radiator 141 is located above the front pedal support 1121. In other embodiments, the radiator 141 may be connected to the mid-frame 112.

[0042] Reference Figure 1 and Figure 3 The body panel 15 includes an inner liner 151 and two side guards 152, which are respectively located on both sides of the radiator 141 in the left-right direction and at least partially cover the front frame 111 (see Figure 2 ) or the middle frame 112 (see Figure 2 A gap is provided between the side guard plate 152 and the radiator 141. It is understood that, in the front-rear direction, at least a portion of the side guard plate 152 is located in front of the front foot pedal support 1121, and in the vertical direction, at least a portion of the side guard plate 152 is located above the front foot pedal support 1121. The side guard plate 152 forms a receiving space 1521 for accommodating the legs and feet above the front foot pedal support 1121.

[0043] The inner liner 151 includes an air guide 1511, which is located on one side of the radiator 141 in the left-right direction. It is understood that the air guide 1511 is plate-shaped and located within the gap between the side guard plate 152 and the radiator 141. One side of the air guide 1511 in the left-right direction is connected to the side guard plate 152, and the other side of the air guide 1511 in the left-right direction substantially abuts against the radiator 141. This allows the air guide 1511 to substantially block the gap between the side guard plate 152 and the radiator 141, enabling air in front of the motorcycle 100 to flow along the air guide 1511 towards the radiator 141, thereby increasing the airflow through the radiator 141 and increasing its heat exchange efficiency. In some embodiments, the side of the air guide 1511 closest to the radiator 141 in the left-right direction may abut against the radiator 141. In other embodiments, a gap may be provided between the air guide portion 1511 and the heat sink 141 on the side of the air guide portion 1511 closest to the heat sink 141 in the left-right direction, so as to reduce the possibility of wear between the air guide portion 1511 and the heat sink 141.

[0044] The air guide section 1511 is provided with a front ventilation hole 1511a. The front ventilation hole 1511a runs through the air guide section 1511 in the front-to-back direction and is connected to the receiving space 1521, so that the low-temperature gas in front of the motorcycle 100 can flow through the front ventilation hole 1511a into the receiving space 1521 on the corresponding side.

[0045] The cooling system 14 also includes a coolant reservoir 142, coolant pipes 143, and a coolant pump (not shown). The coolant reservoir 142 is located on the side of the radiator 141 furthest from the air duct 1511 in the left-right direction. The coolant reservoir 142 is situated within the gap between the radiator 141 and the corresponding side skirt 152. The coolant reservoir 142 is connected to the front frame 111. The coolant pump connects the coolant reservoir 142 and the radiator 141 via the coolant pipes 143. The radiator 141 is connected to the engine 131 via piping. The coolant pump allows coolant to flow within the coolant pipes 143, enabling the coolant to circulate between the coolant reservoir 142, the engine 131, and the radiator 141, thereby cooling the engine 131. For example, the inner liner 151 is located on the right side of the radiator 141, and the coolant reservoir 142 is located on the left side of the radiator 141. In other embodiments, the coolant reservoir 142 may also be connected to the center frame 112 or the side guard plate 152.

[0046] It is understood that the coolant reservoir 142 has a blocking effect on the gas flowing through the gap between the side guard 152 and the radiator 141 on the corresponding side, allowing the gas to flow towards the radiator 141, thereby increasing the flow rate of the gas passing through the radiator 141. A gap is provided between the coolant reservoir 142 and the side guard 152 or the radiator 141 to allow the gas to flow to the corresponding side, so that the low-temperature gas in front of the motorcycle 100 can flow into the corresponding side's receiving space 1521.

[0047] In other embodiments, the coolant reservoir 142 may be located below the radiator 141 or at other locations, and two inner lining plates 151 may be provided, with the two inner lining plates 151 respectively located on the left and right sides of the radiator 141.

[0048] During the operation of the motorcycle 100, the high-temperature gas flowing out of the radiator 141 can flow into the receiving space 1521 through the gaps or through holes on the body cover 15. At the same time, the low-temperature gas in front of the motorcycle 100 can flow into the receiving space 1521 through the gaps at the front ventilation hole 1511a or the coolant reservoir 142 to cool the high-temperature gas flowing into the receiving space 1521, thereby reducing the temperature inside the receiving space 1521 and reducing the temperature around the rider's legs and feet, thus improving riding comfort.

[0049] Reference Figure 3 and Figure 4A reference surface 101 perpendicular to the front-to-back direction can be defined. The outline of the heat sink 141 projected onto the reference surface 101 is the first outline 1011, and the outline of the front ventilation hole 1511a projected onto the reference surface 101 is the second outline 1012. Both the first outline 1011 and the second outline 1012 are basically rectangular. The average width of the first outline 1011 along the left-right direction is D1, and the average height of the first outline 1011 along the up-down direction is H1. The average width of the second outline 1012 along the left-right direction is D2, and the average height of the second outline 1012 along the up-down direction is H2. Define K1 = D2 / D1 and K2 = H2 / H1. The average width refers to the average width of n points evenly distributed along the up-down direction of the first outline 1011 or the second outline 1012, and the average height refers to the average height of m points evenly distributed along the left-right direction of the first outline 1011 or the second outline 1012. For example, n can be 5, and m can be 3.

[0050] In some embodiments, the value of K1 ranges from 0.01 to 0.05; alternatively, the value of K1 ranges from 0.02 to 0.03. For example, K1 may be one of 0.01, 0.015, 0.02, 0.023, 0.025, 0.028, 0.03, 0.035, 0.04, and 0.05.

[0051] In some embodiments, the value of K2 ranges from 0.1 to 0.5; alternatively, the value of K2 ranges from 0.2 to 0.3. For example, K2 may be one of 0.1, 0.15, 0.2, 0.23, 0.25, 0.28, 0.3, 0.35, 0.4, or 0.5.

[0052] By ensuring that K1 and K2 meet the above conditions, the radiator 141 can maintain sufficient heat exchange efficiency while the front vent 1511a has good ventilation, thus allowing the motorcycle 100 (see...) to operate smoothly. Figure 1 Containment space 1521 (see) Figure 1 The temperature is moderate. "Sufficient heat exchange efficiency" means that during the operation of the motorcycle 100, the maximum temperature of the coolant does not exceed a preset temperature; for example, the maximum temperature of the coolant does not exceed 95°C. "Moderate temperature" means that during the operation of the motorcycle 100, the temperature difference between the containment space 1521 and the temperature in front of the air guide 1511 is less than a predetermined difference; for example, the temperature difference between the containment space 1521 and the temperature in front of the air guide 1511 is less than 5°C.

[0053] Reference Figure 5 and Figure 6In some embodiments, the inner liner 151 further includes a support portion 1512, which is disposed between the side guard plate 152 and the radiator 141 and behind the air guide portion 1511. The support portion 1512 connects the air guide portion 1511 and the side guard plate 152, and has a rear ventilation hole 1512a that extends through the support portion 1512 in the front-to-back direction and communicates with the receiving space 1521. Gas in front of the air guide portion 1511 can flow through the front ventilation hole 1511a into the gap between the air guide portion 1511 and the support portion 1512, and then flow through the rear ventilation hole 1512a into the corresponding receiving space 1521.

[0054] It is understood that the support portion 1512 is plate-shaped. In some embodiments, along the left-right direction and away from the radiator 141, the distance between the air guide portion 1511 and the support portion 1512 in the front-back direction gradually increases, so that the air guide portion 1511 is inclined, which can improve the air guiding effect of the air directed to the radiator 141 and improve the support effect of the support portion 1512 on the air guide portion 1511.

[0055] In some embodiments, the inner liner 151 further includes a sealing portion 1513, which connects the air guide portion 1511 and the support portion 1512. The air guide portion 1511, the support portion 1512, the sealing portion 1513, and the side guard plate 152 together form a substantially enclosed space 1514. The front ventilation hole 1511a and the rear ventilation hole 1512a are both located inside the enclosed space 1514. With this arrangement, the possibility of gas leakage between the air guide portion 1511 and the support portion 1512 can be reduced, thereby increasing the gas flow rate from the rear ventilation hole 1512a to the receiving space 1521. Figure 5 The trapezoidal dashed box in the figure is used to represent the enclosed space 1514.

[0056] The outline of the orthographic projection of the front vent 1511a onto the reference plane 101 at least partially overlaps with the outline of the orthographic projection of the rear vent 1512a onto the reference plane 101. Alternatively, the outline of the orthographic projection of the front vent 1511a onto the reference plane 101 may lie inside the outline of the orthographic projection of the rear vent 1512a onto the reference plane 101 to improve the flow of gas through the front vent 1511a.

[0057] In some embodiments, the air guide 1511 has guide strips 1511b on the side away from the receiving space 1521 in the front-rear direction, and multiple guide strips 1511b are spaced apart in the vertical direction. A reference plane 102 is defined that is perpendicular to the vertical direction and passes through the front footrest bracket 1121. In the front-rear direction, the distance between the guide strips 1511b and the reference plane 102 in the vertical direction gradually decreases. In the front-rear direction, at least a portion of the guide strips 1511b is located in front of the front ventilation hole 1511a, and in the vertical direction, at least a portion of the guide strips 1511b is located above the front ventilation hole 1511a. With this arrangement, the guide strips 1511b can guide the gas flowing to the front side of the air guide 1511 to the front ventilation hole 1511a, thereby increasing the flow rate of the gas flowing to the front ventilation hole 1511a and directing the gas as much as possible toward the front footrest bracket 1121 (see...). Figure 1 The airflow is designed to improve comfort at the exposed ankle; at the same time, the guide strip 1511b enhances the structural strength of the air duct 1511.

[0058] Reference Figure 3 and Figure 7 For example, the side guard plate 152 includes an upper guard plate 1522 and a lower guard plate 1523, with the upper guard plate 1522 disposed above the lower guard plate 1523, and the inner lining plate 151 disposed in the gap between the upper guard plate 1522 and the radiator 141.

[0059] Reference Figure 5 and Figure 7 In some embodiments, the inner liner 151 includes a mounting portion 1515, which is integrally injection molded with the upper end of the lower guard plate 1523, and the mounting portion 1515 is connected to the front frame 111 (see...). Figure 2 The upper guard plate 1522 covers the mounting part 1515 and is connected to the mounting part 1515 or the front frame 111. The mounting part 1515 is recessed in the direction of the radiator 141 at the position of the radiator 141, and the upper guard plate 1522 basically seals the opening of the recess 1515a, so that the interior of the recess 1515a forms a closed space 1514. It can be understood that the front side wall of the recess 1515a forms an air guide 1511, the rear side wall of the recess 1515a forms a support 1512, and the upper top wall and / or lower bottom wall of the recess 1515a forms a sealing part 1513.

[0060] Furthermore, those skilled in the art should recognize that the above embodiments are merely illustrative of this application and are not intended to limit this application. Any appropriate changes and variations made to the above embodiments within the essential spirit and scope of this application fall within the scope of this application's disclosure.

Claims

1. A motorcycle, comprising: The frame includes a front frame, a middle frame and a rear frame connected in sequence, wherein the middle frame is provided with a front foot pedal support; A walking system including a front wheel and a rear wheel, wherein at least a portion of the front wheel is disposed under the front frame and at least a portion of the rear wheel is disposed under the rear frame; A power system, at least partially supported by the central frame and drively connected to the front wheel and / or the rear wheel, to drive the front wheel or the rear wheel; A cooling system including a radiator along the length of the motorcycle, the radiator being disposed between the front footrest bracket and the front wheel and connected to the front frame or the middle frame; A body panel includes an inner liner and two side panels. The two side panels are respectively disposed on both sides of the radiator along the width direction of the motorcycle and at least partially cover the front frame or the middle frame. The side panels form a receiving space for accommodating legs above the front footrest bracket. There is a gap between the side panels and the radiator. The inner liner is disposed within the gap between the side panels and the radiator. The feature is that the inner liner includes an air guide section, one side of which is connected to the side guard plate, and the other side of which is substantially in contact with the radiator; the air guide section is provided with a front ventilation hole, which extends through the air guide section along the length of the motorcycle, and the front ventilation hole is connected to the receiving space.

2. The motorcycle according to claim 1, characterized in that, The inner liner also includes a support portion located behind the air guide portion. The support portion connects the air guide portion and the side guard plate. The support portion has a rear ventilation hole that extends through the support portion along the length of the motorcycle and communicates with the receiving space. A reference plane is defined perpendicular to the length of the motorcycle. The outline of the front ventilation hole projected onto the reference plane at least partially overlaps with the outline of the rear ventilation hole projected onto the reference plane.

3. The motorcycle according to claim 2, characterized in that, The outline of the front ventilation hole in the orthographic projection of the reference plane is located inside the outline of the rear ventilation hole in the orthographic projection of the reference plane.

4. The motorcycle according to claim 2, characterized in that, The inner lining plate also includes a sealing part, which connects the air guide part and the support part. The air guide part, the support part, the sealing part and the side guard plate together form a basically closed enclosed space. The front ventilation hole and the rear ventilation hole are both located inside the enclosed space.

5. The motorcycle according to claim 1, characterized in that, Define a reference plane perpendicular to the length direction of the motorcycle; the outline of the radiator projected onto the reference plane is the first outline, and the outline of the front ventilation hole projected onto the reference plane is the second outline, both the first and second outlines being substantially rectangular; the average width of the first outline is D1, the average height of the first outline is H1, the average width of the second outline is D2, and the average height of the second outline is H2; define K1 = D2 / D1, K2 = H2 / H1; the value of K1 ranges from 0.01 to 0.05, and the value of K2 ranges from 0.1 to 0.

5.

6. The motorcycle according to claim 5, characterized in that, The value of K1 ranges from 0.02 to 0.

03.

7. The motorcycle according to claim 5, characterized in that, The value of K2 ranges from 0.2 to 0.

3.

8. The motorcycle according to claim 1, characterized in that, The air guide section has a guide strip on the side away from the receiving space along the length direction of the motorcycle, defining a reference plane that is perpendicular to the height direction of the motorcycle and passes through the front footrest bracket. The distance between the guide strip and the reference plane gradually decreases along the length direction of the motorcycle from front to back. Along the length direction of the motorcycle, at least a portion of the guide strip is located in front of the front ventilation hole, and along the height direction of the motorcycle, at least a portion of the guide strip is located above the front ventilation hole.

9. The motorcycle according to claim 8, characterized in that, The guide strips are spaced out at multiple intervals along the height direction of the motorcycle.

10. The motorcycle according to claim 1, characterized in that, The air guide is located on one side of the radiator along the width direction of the motorcycle. The cooling system also includes a coolant reservoir, coolant pipes, and a coolant pump. The coolant reservoir is located on the side of the radiator away from the air guide along the width direction of the motorcycle and is located in the gap between the radiator and the side guard plate on the corresponding side. At least one of the mid-frame, the front frame, and the side guard plate is connected to the coolant reservoir. The coolant pump is connected to the coolant reservoir and the radiator through the coolant pipe. There is a gap between the coolant reservoir and the side guard plate or the radiator to allow gas to flow to the corresponding side of the receiving space.

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