Engine system and motorcycle

Abstract

The utility model provides a kind of engine system and motorcycle, wherein, engine system includes: engine, the engine is set to the rear of motorcycle inclination, and the engine is provided with air inlet and air outlet;Silencer component is connected with the air outlet of the engine, and extend towards the tail of motorcycle after around the engine one week.This scheme effectively improves the compactness of structure by the reasonable layout of engine and silencer component, adjusts the gravity center of motorcycle by changing the inclination direction of engine.

Description

Technical Field

[0001] This utility model relates to the field of motorcycle technology, and in particular to an engine system and a motorcycle. Background Technology

[0002] The center of gravity of a motorcycle affects its driving safety. Current motorcycles have a forward-leaning engine design, which shifts the center of gravity forward, making the motorcycle prone to tilting forward during braking or deceleration, increasing the likelihood of tipping over. Furthermore, current mufflers are limited by installation space on the motorcycle, resulting in restricted exhaust pipe length and ineffective noise reduction of exhaust gases. Summary of the Invention

[0003] This utility model provides an engine system and a motorcycle to solve the above-mentioned technical problems.

[0004] This utility model provides an engine system and a motorcycle, the engine system comprising:

[0005] An engine, which is tilted toward the rear of the motorcycle and has an air inlet and an air outlet.

[0006] A muffler assembly is connected to the engine's exhaust port and extends around the engine toward the rear of the motorcycle.

[0007] In one embodiment of the present invention, the muffler assembly includes an exhaust pipe and a muffler disposed at the tail end of the exhaust pipe. The exhaust pipe is connected to the exhaust port of the engine, and the muffler has an exhaust outlet.

[0008] In one embodiment of the present invention, the exhaust pipe includes a first exhaust pipe, a second exhaust pipe, and a third exhaust pipe that are connected in sequence and whose diameters increase in sequence. The first exhaust pipe is connected to the exhaust port of the engine, and the third exhaust pipe is connected to the muffler.

[0009] In one embodiment of the present invention, the first exhaust pipe includes a first pipe segment, a second pipe segment, and a third pipe segment connected in sequence. The first pipe segment is connected to the exhaust port of the engine, and the third pipe segment is connected to the second exhaust pipe. The diameter of the second pipe segment is larger than that of the first pipe segment, and the diameter of the first pipe segment is the same as that of the third pipe segment.

[0010] In one embodiment of the present invention, the first exhaust pipe and the second exhaust pipe respectively partially surround the engine.

[0011] In one embodiment of the present invention, the diameter ratio between the first exhaust pipe, the second exhaust pipe and the third exhaust pipe is 1:1.05~1.09:1.15~1.20.

[0012] In one embodiment of the present invention, the air intake of the engine is located on the front side of the engine, and the air outlet of the engine is located on the rear side of the engine.

[0013] In one embodiment of this utility model, the engine is positioned on the motorcycle at a position lower than that of the motorcycle's fuel tank.

[0014] In one embodiment of the present invention, an air filter is connected to the air intake of the engine, and a throttle valve is connected between the air filter and the engine.

[0015] This utility model also provides a motorcycle, including the above-described engine system.

[0016] The beneficial effects of this utility model are as follows: The engine system and motorcycle proposed in this utility model adjust the motorcycle's center of gravity by tilting the engine backward, making the center of gravity lower and rearward, increasing the motorcycle's driving stability and reducing the possibility of forward tilting during sudden stops. Simultaneously, the backward tilt of the engine facilitates the flow of gasoline along the internal fuel lines under the influence of gravity, increasing the smoothness of gasoline flow. The muffler assembly surrounds the engine to extend the exhaust path and increase the noise reduction effect. Furthermore, the way the muffler assembly is arranged around the engine not only meets the length requirements of the exhaust path but also makes the overall layout of the motorcycle's components more compact. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the structure of an engine system provided in an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of a muffler assembly provided in one embodiment of the present invention.

[0021] The attached figures are labeled as follows:

[0022] Engine 1, Air Inlet 101, Air Outlet 102

[0023] Muffler assembly 2, first exhaust pipe 201, first pipe section 2011, second pipe section 2012, third pipe section 2013, second exhaust pipe 202, third exhaust pipe 203, muffler 204, mounting part 205, protective plate 206, anti-detachment component 207.

[0024] 3. Air filter; 4. Throttle body. Detailed Implementation

[0025] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments. Various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic representations of the basic concept of the present invention. The drawings only show the components related to the present invention and are not drawn according to the actual number, shape and size of the components. In actual implementation, the form, quantity and proportion of each component can be arbitrarily changed, and the layout of the components may also be more complex.

[0027] In the following description, numerous details are explored to provide a more thorough explanation of embodiments of the present invention. However, it will be apparent to those skilled in the art that embodiments of the present invention may be practiced without these specific details. In other embodiments, well-known structures and devices are shown in block diagram form rather than in detail to avoid obscuring embodiments of the present invention.

[0028] Please see Figure 1 and attached Figure 2 As shown, an embodiment of the present invention provides an engine system comprising:

[0029] Engine 1 is tilted towards the rear of the motorcycle and has an air inlet 101 and an air outlet 102.

[0030] The muffler assembly is connected to the exhaust port 102 of the engine 1 and extends around the engine 1 toward the rear of the motorcycle.

[0031] It should be noted that the rearward tilt of engine 1 is to adjust the motorcycle's center of gravity, making it lower and rearward, increasing the motorcycle's stability and reducing the likelihood of it tilting forward during sudden stops. Simultaneously, the rearward tilt of engine 1 facilitates the flow of gasoline along the internal fuel lines under gravity, increasing the smoothness of gasoline flow. The muffler assembly surrounds engine 1 to extend the exhaust path and enhance noise reduction. Furthermore, this arrangement not only meets the length requirements of the exhaust path but also allows for a more compact overall layout of the motorcycle's components.

[0032] In an exemplary embodiment, the muffler assembly includes an exhaust pipe and a muffler 204 disposed at the tail end of the exhaust pipe. The exhaust pipe is connected to the exhaust port 102 of the engine 1, and the muffler 204 has an exhaust outlet.

[0033] For example, the exhaust pipe is arranged around the engine 1 to increase the output path of the exhaust gas during the exhaust process, which facilitates the reduction of exhaust gas speed. The muffler 204 is arranged to reduce the noise of the exhaust gas.

[0034] In an exemplary embodiment, the exhaust pipe includes a first exhaust pipe 201, a second exhaust pipe 202, and a third exhaust pipe 203 that are connected in sequence and whose diameters increase in sequence. The first exhaust pipe 201 is connected to the exhaust port 102 of the engine 1, and the third exhaust pipe 203 is connected to the muffler 204.

[0035] In this embodiment, the first exhaust pipe 201, the second exhaust pipe 202, and the third exhaust pipe 203 are connected in sequence so that the exhaust gas velocity decreases more quickly as the diameter of the exhaust pipe changes, thereby reducing exhaust gas noise.

[0036] For example, since the first exhaust pipe 201 and the second exhaust pipe 202 are located inside the driver's legs when the driver is riding the bicycle, a protective plate 206 is provided on the outer side of both the first exhaust pipe 201 and the second exhaust pipe 202 to avoid scalding the driver.

[0037] For example, in order to prevent the second exhaust pipe 202 and the third exhaust pipe 203 from falling off, an anti-detachment component 207 is provided at the connection position between the second exhaust pipe 202 and the third exhaust pipe 203 to reinforce the connection between the second exhaust pipe 202 and the third exhaust pipe 203.

[0038] In an exemplary embodiment, the first exhaust pipe 201 includes a first pipe section 2011, a second pipe section 2012, and a third pipe section 2013 connected in sequence. The first pipe section 2011 is connected to the exhaust port 102 of the engine 1, and the third pipe section 2013 is connected to the second exhaust pipe 202. The diameter of the second pipe section 2012 is larger than that of the first pipe section 2011, and the diameter of the first pipe section 2011 is the same as that of the third pipe section 2013.

[0039] For example, engine 1 is a four-stroke engine, and its compression process is divided into two stages, so the exhaust is not continuous but intermittent at high frequency. The second pipe section 2012 is set up to transition the vacuum period between the two exhaust stages.

[0040] For example, the ratio of the inner diameters of the first pipe section 2011 and the second pipe section 2012 is 1:1.3 to 1.5.

[0041] For example, the inner diameter ratio between the first pipe section 2011 and the second pipe section 2012 is 1:1.5.

[0042] In an exemplary embodiment, the first exhaust pipe 201 and the second exhaust pipe 202 respectively partially surround the engine 1.

[0043] In this embodiment, the first exhaust pipe 201 and the second exhaust pipe 202 are arranged to surround the engine 1.

[0044] In an exemplary embodiment, the diameter ratio between the first exhaust pipe 201, the second exhaust pipe 202, and the third exhaust pipe 203 is 1:1.05~1.09:1.15~1.20.

[0045] For example, the diameter ratio between the first exhaust pipe 201, the second exhaust pipe 202, and the third exhaust pipe 203 is 1:1.07:1.19.

[0046] For example, the first exhaust pipe 201, the second exhaust pipe 202 and the third exhaust pipe 203 have the same wall thickness.

[0047] For example, the muffler 204, the connection position of the first exhaust pipe 201 and the second exhaust pipe 202, and the third exhaust pipe 203 are respectively provided with mounting parts 205 that are connected to the motorcycle frame.

[0048] In an exemplary embodiment, the air intake 101 of the engine 1 is located on the front side of the engine 1, and the air outlet 102 of the engine 1 is located on the rear side of the engine 1.

[0049] In this embodiment, in order to facilitate the intake and exhaust of gas in the engine 1 and make the gas intake and exhaust of the engine 1 consistent with the airflow direction when the motorcycle is moving, the air intake 101 is located on the front side of the engine 1 and the air outlet 102 is located on the rear side of the engine 1.

[0050] In one exemplary embodiment, the engine 1 is positioned on the motorcycle at a position lower than that of the motorcycle fuel tank.

[0051] For example, the fuel tank is located on the upper right side of the engine 1, and the engine 1 is tilted towards the fuel tank, so that the gasoline in the fuel tank can enter the engine 1 more smoothly under the action of gravity.

[0052] In an exemplary embodiment, an air filter 3 is connected to the air intake 101 of the engine 1, and a throttle valve 4 is connected between the air filter 3 and the engine 1.

[0053] For example, the air filter 3 is configured to filter the gas entering the engine 1. The throttle valve 4 is configured to control the gas flow rate entering the engine 1.

[0054] In one exemplary embodiment of this application, a motorcycle is also provided, including the engine system described above. By installing an engine system on the motorcycle, the center of gravity of the motorcycle can be adjusted, thereby increasing the motorcycle's driving stability and comfort.

[0055] For example, the tilt angle α of engine 1 is 15°.

[0056] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An engine system, characterized in that, include: An engine, which is tilted toward the rear of the motorcycle and has an air inlet and an air outlet. A muffler assembly is connected to the engine's exhaust port and extends around the engine toward the rear of the motorcycle.

2. The engine system according to claim 1, characterized in that, The muffler assembly includes an exhaust pipe and a muffler located at the tail end of the exhaust pipe. The exhaust pipe is connected to the exhaust port of the engine, and the muffler has an exhaust outlet.

3. The engine system according to claim 2, characterized in that, The exhaust pipe includes a first exhaust pipe, a second exhaust pipe, and a third exhaust pipe that are connected in sequence and whose diameters increase sequentially. The first exhaust pipe is connected to the exhaust port of the engine, and the third exhaust pipe is connected to the muffler.

4. The engine system according to claim 3, characterized in that, The first exhaust pipe includes a first pipe section, a second pipe section, and a third pipe section connected in sequence. The first pipe section is connected to the exhaust port of the engine, and the third pipe section is connected to the second exhaust pipe. The diameter of the second pipe section is larger than that of the first pipe section, and the diameter of the first pipe section is the same as that of the third pipe section.

5. The engine system according to claim 3, characterized in that, The first exhaust pipe and the second exhaust pipe each partially enclose the engine.

6. The engine system according to claim 3, characterized in that, The diameter ratio between the first exhaust pipe, the second exhaust pipe and the third exhaust pipe is 1:1.05~1.09:1.15~1.

20.

7. The engine system according to claim 1, characterized in that, The engine's air intake is located on the front side of the engine, and the engine's air outlet is located on the rear side of the engine.

8. The engine system according to claim 1, characterized in that, The engine is positioned on the motorcycle at a location lower than the motorcycle's fuel tank.

9. The engine system according to any one of claims 1 to 8, characterized in that, An air filter is connected to the air intake of the engine, and a throttle valve connects the air filter to the engine.

10. A motorcycle, characterized in that, Includes the engine system as described in any one of claims 1 to 9.

Images