Exhaust device and motorcycle

Abstract

The exhaust device comprises an exhaust pipe, a silencing pot and an exhaust connector, the exhaust pipe is arranged on the side portion of the motorcycle in the length direction, and the exhaust pipe comprises an air inlet section located at the front end and an air outlet section located at the rear end. The silencing cylinder is connected to the exhaust pipe and arranged on the air outlet section in a sleeving mode. The exhaust joint is connected to a port of the air inlet section and comprises a first joint and a second joint, the first joint is communicated with the second joint through an adapter cylinder, the first joint is connected with the exhaust pipe, the second joint is connected with a motorcycle engine, and the adapter cylinder is connected with the exhaust pipe. A port of the air inlet section is arranged towards one side of a motorcycle body, an opening of the first connector is arranged towards the outer side of the motorcycle body so as to be relatively matched with the port of the air inlet section, the adapter barrel is arranged in a spiral twisting shape, and an opening of the second connector faces the front end of the exhaust pipe so as to be close to a motorcycle engine.

Description

TECHNICAL FIELD

[0001] The utility model relates to motorcycle technical field, especially a kind of exhaust device and motorcycle. BACKGROUND

[0002] In motorcycle design, exhaust pipe as the key component of engine exhaust emission, its layout and shape have important influence on the performance of motorcycle, noise control and overall aesthetic degree. However, when exhaust pipe is directly connected with engine, and needs to adapt the complex spatial layout of motorcycle, it is often necessary to twist, bend the exhaust pipe. This processing method not only increases the actual length of exhaust pipe, increases the impact times of gas flowing in pipe body, thereby intensifies the generation of exhaust noise, and brings additional challenges to the manufacture of exhaust pipe, such as material deformation, welding difficulty increases, etc., which is not conducive to use. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in prior art. For this purpose, the utility model provides an exhaust device, which can connect exhaust pipe and engine through exhaust joint, so that exhaust pipe is installed to adapt the spatial layout of motorcycle, while reducing the degree of twisting and bending of exhaust pipe, thereby reducing noise.

[0004] According to the first aspect embodiment of the utility model's exhaust device, including exhaust pipe, silencer and exhaust joint, the exhaust pipe is arranged in the side of motorcycle along length direction, and the exhaust pipe includes intake section at front end and exhaust section at rear end. The silencer is connected to the exhaust pipe and is sleeved on the exhaust section. The exhaust joint is connected to the port of intake section, and the exhaust joint includes first joint and second joint, and the first joint and the second joint are communicated through adapter tube, wherein the first joint is connected with the exhaust pipe, the second joint is connected with motorcycle engine, the port of intake section is arranged towards the side of motorcycle body, the opening of the first joint is arranged towards the outside of motorcycle body, to relatively match the port of intake section, the adapter tube is arranged in spiral twist shape, to make the opening of the second joint towards the front end of the exhaust pipe, to be close to motorcycle engine.

[0005] The exhaust joint is provided in a spiral shape, which can ensure that the space layout requirement is met while the number of impacts of gas in the pipe body and the generation of noise are minimized.

[0006] According to some embodiments of the present application, the opening of the second joint is upwardly inclined.

[0007] According to some embodiments of the present application, the first joint is provided with a rhombic boss along the circumference of the opening, and the air inlet section is provided with a rhombic edge plate around the circumference near the port, the rhombic edge plate and the rhombic boss are provided with penetrating fixing holes corresponding to each other, and the fixing holes are provided with fasteners for fixing the exhaust joint and the exhaust pipe.

[0008] According to some embodiments of the present application, the rhombic boss is provided with a positioning groove, the positioning groove is a circular groove concentric with the opening of the first joint, and the part of the air inlet section protruding from the rhombic edge plate is inserted into the positioning groove.

[0009] According to some embodiments of the present application, the exhaust joint is further provided with an oxygen sensor, the adapter cylinder is provided with a mounting hole communicating with the internal passage along the peripheral wall, and the oxygen sensor passes through the mounting hole to extend into the exhaust joint.

[0010] According to some embodiments of the present application, the peripheral wall of the adapter cylinder is provided with a plurality of heat dissipation fins, and the plurality of heat dissipation fins are uniformly and equidistantly arranged.

[0011] According to some embodiments of the present application, the width of the heat dissipation fins gradually decreases towards the first joint and the second joint.

[0012] The motorcycle according to the first aspect of the present application comprises the exhaust device according to any one of the above.

[0013] The motorcycle according to the embodiment of the utility model has at least the following beneficial effects: the above-mentioned exhaust device is applied to the motorcycle, which can significantly improve the exhaust performance of the motorcycle, reduce noise, simplify the manufacturing process, and improve environmental protection performance.

[0014] The additional aspects and advantages of the utility model will be partially given in the following description, partially will become obvious from the following description, or be understood through the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0015] The utility model will be further explained in combination with the drawings and embodiments, wherein:

[0016] Figure 1 It is the schematic view of the exhaust device of the utility model embodiment;

[0017] Figure 2 It is the schematic view of the exhaust joint of the exhaust device of the utility model embodiment.

[0018] Reference signs: exhaust pipe 100, air inlet section 110, rhombic edge plate 111, air outlet section 120, muffler 200, exhaust joint 300, first joint 310, rhombic boss 311, positioning groove 312, second joint 320, adapter cylinder 330, heat dissipation fin 331, mounting hole 332, fixing hole 400. DETAILED DESCRIPTION

[0019] The embodiments of the utility model will be described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as the limitation of the utility model.

[0020] In the description of the utility model, it is understood that the orientation description, such as the orientation or position relationship of the indication of up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and is not indicative or implied that the indicated device or element must have a specific orientation, a specific orientation and operation, therefore, it cannot be understood as the limitation of the utility model.

[0021] In the description of the utility model, if several meanings are one or more, the meaning of multiple is two or more, greater than, less than, exceed and the like are understood as not including the number, above, below, within and the like are understood as including the number. If it is described to the first, the second is only used for distinguishing the purpose of technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or implicitly indicating the sequence of indicated technical features.

[0022] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection should be understood in a broad sense, and the person skilled in the art can determine the specific meaning of the above words in the utility model in combination with the specific content of the technical scheme.In the description of the utility model, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model.In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.In the description of the present application, the description of reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model.In the description of the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example.Moreover, the described specific features, structures, materials or characteristics can be combined in any one or more embodiments or examples in a suitable manner.

[0023] Referring to Figure 1 And Figure 2This utility model proposes an exhaust device, including an exhaust pipe 100, a muffler 200, and an exhaust connector 300. The exhaust pipe 100 is arranged along the length of the motorcycle on the side, and includes an intake section 110 at the front end and an exhaust section 120 at the rear end. The muffler 200 is connected to the exhaust pipe 100 and fitted onto the exhaust section 120. The exhaust connector 300 is connected to the port of the intake section 110. The exhaust connector 300 includes a first connector 310 and a second connector 320. The first connector 310 and the second connector 320 are connected by an adapter tube 330. The first connector 310 is connected to the exhaust pipe 100, and the second connector 320 is connected to the motorcycle engine. The port of the intake section 110 is set facing the side of the motorcycle body, and the opening of the first connector 310 is set facing the outside of the motorcycle body to match the port of the intake section 110. The adapter tube 330 is set in a spiral twisted shape so that the opening of the second connector 320 faces the front end of the exhaust pipe 100 to be close to the motorcycle engine.

[0024] In a specific embodiment, the exhaust pipe 100 is arranged along the length of the motorcycle's side to guide the exhaust gas generated by the engine to the muffler 200 for noise reduction. The exhaust pipe 100 includes an intake section 110 at the front end and an exhaust section 120 at the rear end. The port of the intake section 110 is positioned facing the side of the motorcycle body to better fit the motorcycle's spatial layout. The muffler 200 is connected to the exhaust section 120 of the exhaust pipe 100 to reduce exhaust noise. An exhaust connector 300 is connected to the port of the intake section 110 of the exhaust pipe 100 to introduce the exhaust gas generated by the engine into the exhaust pipe 100. The exhaust connector 300 includes a first connector 310 and a second connector 320, which are connected by an adapter tube 330. The first connector 310 is connected to the exhaust pipe 100, and its opening is positioned facing the outside of the motorcycle body to match the port of the intake section 110. The second connector 320 is connected to the motorcycle engine to receive the exhaust gas generated by the engine.

[0025] Reference Figure 2It should be noted that the helical twisted shape of the adapter 330 is specifically as follows: after the first connector 310 extends towards the side of the motorcycle body, it slopes downward in an arc, then slopes forward in an arc, and then extends upward. The overall helical design of the exhaust connector 300 ensures that while meeting spatial layout requirements, it minimizes the number of gas impacts and noise generation within the pipe. The helical twisted shape of the adapter 330 not only directs the opening of the second connector 320 towards the front end of the exhaust pipe 100, closer to the motorcycle engine, thereby shortening the connection distance between the engine and the exhaust pipe 100 and reducing exhaust resistance, but also guides the exhaust gas to rotate as it flows through the adapter 330, thereby increasing the exhaust gas velocity and turbulence, further improving exhaust efficiency. In addition, the helical twisted shape of the adapter 330 also has a certain degree of elasticity, which can absorb the stress generated by the thermal expansion of the exhaust pipe 100 to a certain extent, thereby improving the reliability and durability of the entire exhaust system.

[0026] Understandably, the spiral twist of the adapter cylinder 330 allows the exhaust connector 300 to connect the exhaust pipe 100 to the engine while meeting space layout requirements. This reduces exhaust resistance and also reduces the twisting and bending of the exhaust pipe 100, thereby reducing noise.

[0027] Reference Figure 1 In practice, the opening of the second connector 320 is angled upwards to accommodate the installation position and exhaust requirements of the motorcycle engine. Typically, the motorcycle engine is located at the lower front of the vehicle, while the exhaust pipe 100 extends along the side of the vehicle body. By angled upwards the opening of the second connector 320, the exhaust gases produced by the engine can be guided more effectively into the exhaust pipe 100, reducing airflow resistance and improving exhaust efficiency. Simultaneously, it also helps to reduce the residence time of exhaust gases inside the exhaust connector 300, thereby reducing the risk of carbon buildup and corrosion.

[0028] Reference Figure 1 It should be noted that the first connector 310 has a rhomboid boss 311 circumferentially arranged around its opening, and the intake section 110, located near the port, has a rhomboid side plate 111 circumferentially arranged around it. The design of the rhomboid boss 311 and the rhomboid side plate 111 not only enhances the connection strength between the exhaust connector 300 and the exhaust pipe 100, but also provides a more stable fixing method. The rhomboid boss 311 and the rhomboid side plate 111 are respectively provided with through fixing holes 400, which, by inserting fasteners, can firmly connect the exhaust connector 300 and the exhaust pipe 100 together, ensuring the stability and reliability of the exhaust system.

[0029] Furthermore, a positioning groove 312 is provided on the rhomboid boss 311. The positioning groove 312 is concentrically arranged with the opening of the first connector 310, which can further ensure the accurate positioning between the exhaust connector 300 and the exhaust pipe 100. When the part of the intake section 110 extending out of the rhomboid side plate 111 is inserted into the positioning groove 312, the relative movement between the exhaust connector 300 and the exhaust pipe 100 can be restricted, improving the tightness and stability of the connection, which helps to simplify the installation process and improve installation efficiency.

[0030] Reference Figure 2 Understandably, the second connector 320 has a diamond-shaped side plate 111 along its peripheral wall near the opening, referencing the connection method between the first connector 310 and the intake section 110, and is suitable for the connection method between the second connector 320 and the engine. It should be noted that the second connector 320 may also have a diamond-shaped boss 311, referencing the first connector 310; this is not the only limitation.

[0031] To monitor the quality of motorcycle exhaust emissions in real time, an oxygen sensor is also installed in the exhaust connector 300. The oxygen sensor extends into the exhaust connector 300 through a mounting hole 332 connected to an internal channel along the peripheral wall of the adapter cylinder 330 to measure the oxygen content in the exhaust gas. This helps the motorcycle engine control system more accurately adjust the fuel injection quantity, thereby reducing the content of pollutants emitted and improving environmental performance.

[0032] Reference Figure 2 The adapter cylinder 330 has multiple heat dissipation fins 331 arranged around its peripheral wall. These heat dissipation fins 331 can increase the contact area between the adapter cylinder 330 and the air, thereby improving heat dissipation efficiency. The multiple heat dissipation fins 331 are equidistant and uniformly arranged to ensure that the adapter cylinder 330 can maintain good heat dissipation performance under long-term high-temperature operation, thus extending its service life.

[0033] Furthermore, the width of the heat dissipation fins 331 gradually decreases towards the first connector 310 and the second connector 320, which can further optimize the heat dissipation effect. It also allows the heat dissipation fins 331 to have different heat dissipation areas at different positions on the adapter cylinder 330, thereby better adapting to the temperature distribution inside the adapter cylinder 330. Simultaneously, it also provides sufficient space for the user to hold and secure the first connector 310 and the second connector 320 when assembling the exhaust connector 300.

[0034] This invention also proposes a motorcycle with the aforementioned exhaust system. Applying this exhaust system to a motorcycle can significantly improve its exhaust performance, reduce noise, simplify the manufacturing process, and enhance its environmental performance. This exhaust system is not only suitable for ordinary motorcycles but also for high-performance motorcycles, racing motorcycles, and other models that require higher exhaust efficiency and lower noise.

[0035] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. An exhaust device, characterized in that, include: An exhaust pipe is arranged along the length of the motorcycle on the side, the exhaust pipe including an intake section at the front end and an exhaust section at the rear end. A muffler is connected to the exhaust pipe and fitted onto the air outlet section; An exhaust connector is connected to the port of the intake section. The exhaust connector includes a first connector and a second connector, which are connected by an adapter. The first connector is connected to the exhaust pipe, and the second connector is connected to the motorcycle engine. The port of the intake section is positioned facing one side of the motorcycle body, and the opening of the first connector is positioned facing the outer side of the motorcycle body to match the port of the intake section. The adapter is spirally twisted so that the opening of the second connector faces the front end of the exhaust pipe, close to the motorcycle engine.

2. The exhaust device according to claim 1, characterized in that, The opening of the second connector is angled upwards.

3. The exhaust device according to claim 1, characterized in that, The first connector has a diamond-shaped protrusion along the circumference of the opening. The air intake section is located near the port and has a diamond-shaped side plate around it along the circumference. The diamond-shaped side plate and the diamond-shaped protrusion are provided with corresponding through fixing holes. Fasteners for fixing the exhaust connector and the exhaust pipe are installed through the fixing holes.

4. The exhaust device according to claim 3, characterized in that, The rhomboid boss is provided with a positioning groove, which is a circular groove concentric with the opening of the first connector, and the part of the air intake section extending out of the rhomboid side plate is inserted into the positioning groove.

5. The exhaust device according to claim 1, characterized in that, The exhaust connector is also equipped with an oxygen sensor. The adapter cylinder has a mounting hole along its peripheral wall that connects to the internal channel. The oxygen sensor passes through the mounting hole and extends into the exhaust connector.

6. The exhaust device according to claim 1, characterized in that, The adapter cylinder is surrounded by multiple heat dissipation fins, which are equidistant and uniformly arranged.

7. The exhaust device according to claim 6, characterized in that, The width of the heat dissipation fins gradually decreases towards the first connector and the second connector.

8. A motorcycle, characterized in that, Includes the exhaust device as described in any one of claims 1 to 7.

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