Mounting structure of power device and dual-fuel motorcycle

By designing a ring-shaped mounting cavity and support frame structure on the motorcycle, the environmental pollution problem of fuel-powered motorcycles and the installation problem of natural gas cylinders were solved, and the vehicle rigidity and handling performance were improved.

CN224211185UActive Publication Date: 2026-05-08JIANGMEN WANGYE MOTORCYCLE MFG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGMEN WANGYE MOTORCYCLE MFG
Filing Date
2025-05-20
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Existing gasoline-powered motorcycles produce harmful gases when burning gasoline or diesel, causing environmental pollution and health hazards. At the same time, it is difficult to install natural gas cylinders on motorcycles, which affects vehicle rigidity and handling.

Method used

Design an installation structure for a power unit, forming an annular mounting cavity through the upper beam, middle frame, and bottom frame of the vehicle frame. The gas cylinder is inserted into the cavity and fixed by a support frame and a connecting frame to ensure the rigidity and strength of the vehicle frame and optimize the gas cylinder layout.

Benefits of technology

It improves the vehicle's structural strength and handling, ensures stable installation of the gas cylinder, avoids heat transfer, and enhances the vehicle's operational stability and driving performance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a mounting structure of a power device and a dual-fuel motorcycle, and relates to the technical field of dual-fuel motorcycles, the mounting structure comprises a frame, an engine and a gas cylinder, the frame comprises an upper beam, a middle frame and a bottom frame, the bottom frame is located on the lower portion of the upper beam, the middle frame is connected to one end of the upper beam, and the two ends of the bottom frame are connected with the bottom of the middle frame and the upper beam respectively. The upper beam and the bottom frame define a first mounting cavity, the engine is located in the first mounting cavity, the middle frame comprises two side frames, and the two side frames define a second mounting cavity, so that the frame forms an annular stable structure. The first mounting cavity is communicated with the second mounting cavity, and the gas cylinder penetrates through the first mounting cavity and the second mounting cavity, so that the frame surrounds the periphery of the gas cylinder, the rigidity and the strength of the frame can be ensured while the gas cylinder is smoothly accommodated, and the driving control level of a vehicle can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of dual-fuel motorcycle technology, and in particular to a power unit mounting structure and a dual-fuel motorcycle. Background Technology

[0002] In related technologies, current gasoline-powered motorcycles have high fuel costs, which can be a significant expense over long-term use. Furthermore, the combustion of gasoline or diesel in these motorcycles produces various harmful gases that pollute the atmosphere, exacerbating environmental problems such as smog and harming human health. Natural gas, on the other hand, is a non-toxic, odorless, and colorless gas, free of carcinogens such as benzene, lead, and sulfur, and is inexpensive. It is currently widely used as automotive fuel, and natural gas is stored in cylinders installed in vehicles. Due to the compact structure of motorcycles, it is difficult to accommodate cylinders for motorcycles that use both gasoline and natural gas. Furthermore, installing cylinders makes it difficult to balance the rigidity and strength of the frame, leading to a decrease in vehicle handling. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a power unit mounting structure and a dual-fuel motorcycle, optimizing the gas cylinder mounting layout and improving the vehicle's structural strength and rigidity.

[0004] An installation structure for a power device according to a first aspect embodiment of the present invention includes:

[0005] The vehicle includes a frame, an engine, and a gas cylinder. The frame comprises a top beam, a middle frame, and a bottom frame. The bottom frame is located below the top beam. The middle frame is connected to one end of the top beam. The two ends of the bottom frame are respectively connected to the bottom of the middle frame and the top beam, so that the top beam and the bottom frame form a first mounting cavity. The engine is located in the first mounting cavity. The middle frame includes two side frames, which form a second mounting cavity. The first mounting cavity and the second mounting cavity are connected. The gas cylinder passes through the first mounting cavity and the second mounting cavity.

[0006] According to the installation structure of the power device according to the first aspect of the present utility model, it has at least the following beneficial effects:

[0007] This embodiment includes a frame, an engine, and a gas cylinder. The frame includes a top beam, a middle frame, and a bottom frame. The bottom frame is located below the top beam. The middle frame is connected to one end of the top beam. The two ends of the bottom frame are connected to the bottom of the middle frame and the top beam, respectively. Thus, the top beam and the bottom frame form a first mounting cavity, and the engine is located in the first mounting cavity. The middle frame includes two side frames, which form a second mounting cavity, making the frame a stable annular structure. The first mounting cavity and the second mounting cavity are connected. The gas cylinder passes through the first mounting cavity and the second mounting cavity, so that the frame surrounds the outer periphery of the gas cylinder. This ensures that the gas cylinder can be smoothly accommodated while maintaining the rigidity and strength of the frame, thereby improving the vehicle's handling level.

[0008] According to an embodiment of the first aspect of the present invention, the side frame is provided with a first support frame, the first support frame is located on both sides of the gas cylinder, and a first mounting sleeve is provided between the first support frames of the two side frames, the first mounting sleeve is wrapped around the outer periphery of the gas cylinder.

[0009] According to an embodiment of the first aspect of the present invention, the side frame includes a first side frame and a second side frame. The first side frame is provided with a first upper tube and a first inclined tube, and the second side frame includes a second upper tube and a second inclined tube. The gas cylinder is located between the first inclined tube and the second inclined tube.

[0010] According to an embodiment of the first aspect of the present invention, a first connecting frame is provided between the two side frames, and the engine is fixedly installed at the end of the first connecting frame away from the side frames.

[0011] According to an embodiment of the first aspect of the present invention, a second support frame is provided at the end of the first connecting frame connected to the engine, and the second support frame is provided with a second mounting sleeve, which is wrapped around the outer periphery of the gas cylinder.

[0012] According to an embodiment of the first aspect of the present invention, the engine includes a power unit and a transmission unit, wherein the length direction of the power unit is parallel to the length direction of the gas cylinder.

[0013] According to an embodiment of the first aspect of the present invention, the base frame includes a first side tube and a second side tube, which are respectively connected to the bottom two sides of the middle frame.

[0014] According to an embodiment of the first aspect of the present invention, the power unit extends outward from the first mounting cavity and is located between the first side tube and the second side tube.

[0015] According to an embodiment of the first aspect of the present invention, a sealing plate is provided between the two side frames, and the sealing plate can abut against the end of the gas cylinder away from the first mounting cavity.

[0016] According to an embodiment of the second aspect of the present invention, a dual-fuel motorcycle is provided, including the aforementioned mounting structure for a power unit.

[0017] The dual-fuel motorcycle according to the second aspect of the present invention has at least the following beneficial effects:

[0018] The dual-fuel motorcycle of this embodiment has a power unit mounting structure including a frame, an engine, and a gas cylinder. The frame includes a top beam, a middle frame, and a bottom frame. The bottom frame is located below the top beam. The middle frame is connected to one end of the top beam. The two ends of the bottom frame are respectively connected to the bottom of the middle frame and the top beam, so that the top beam and the bottom frame form a first mounting cavity. The engine is located in the first mounting cavity. The middle frame includes two side frames, which form a second mounting cavity, so that the frame forms a stable annular structure. The first mounting cavity and the second mounting cavity are connected. The gas cylinder passes through the first mounting cavity and the second mounting cavity, so that the frame surrounds the outer periphery of the gas cylinder. While ensuring that the gas cylinder can be smoothly accommodated, the rigidity and strength of the frame can be guaranteed, thereby improving the driving control level of the vehicle.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0021] Figure 1 This is an isometric view of the mounting structure of a power device in an embodiment of this utility model;

[0022] Figure 2 This is an axonometric view of the vehicle frame in an embodiment of this utility model;

[0023] Figure 3 This is an isometric view of the gas cylinder installation position in an embodiment of this utility model.

[0024] Figure label:

[0025] Frame 100; upper beam 101; gas cylinder 102; engine 103; power unit 1031; transmission unit 1032; first connecting frame 104; first mounting cavity 105; second mounting cavity 106; second connecting frame 107;

[0026] 110 middle frame; 111 first side frame; 112 second side frame; 113 first upper tube; 114 first inclined tube; 115 second upper tube; 116 second inclined tube; 117 first support frame; 118 first mounting sleeve; 119 second support frame; 120 second mounting sleeve; 121 sealing plate;

[0027] Base frame 130; first side tube 131; second side tube 132; reinforcing tube 133; first tail tube 134; second tail tube 135. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0030] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0031] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0032] Reference Figures 1 to 3 An installation structure for a power device according to an embodiment of the present utility model includes a frame 100, an engine 103, and a gas cylinder 102. The frame 100 includes an upper beam 101, a middle frame 110, and a base frame 130. The base frame 130 is located below the upper beam 101. The middle frame 110 is connected to one end of the upper beam 101. The two ends of the base frame 130 are respectively connected to the bottom of the middle frame 110 and the upper beam 101, so that the upper beam 101 and the base frame 130 form a first mounting cavity 105, and the engine 103 is located in the first mounting cavity 105.

[0033] Understandably, the mid-frame 110 includes two side frames that form a second mounting cavity 106, creating a stable annular structure for the frame 100. Simultaneously, the first mounting cavity 105 and the second mounting cavity 106 are connected, and the gas cylinder 102 passes through both cavities, allowing the frame 100 to surround the gas cylinder 102. This ensures the smooth accommodation of the gas cylinder 102 while maintaining the rigidity and strength of the frame 100, thereby improving the vehicle's handling.

[0034] Specifically, the side frame includes a first side frame 111 and a second side frame 112 located on both sides of the upper beam 101. The first side frame 111 has a first upper tube 113 and a first inclined tube 114, and the second side frame 112 includes a second upper tube 115 and a second inclined tube 116. The gas cylinder 102 is located between the first inclined tube 114 and the second inclined tube 116. Further, the underframe 130 includes a first side tube 131 and a second side tube 132, which are respectively connected to the bottom sides of the middle frame 110. Thus, the middle frame 110 and the underframe 130 form an integral frame containing a first mounting cavity 105 and a second mounting cavity 106. The gas cylinder 102 does not protrude from the outside of the frame 100, which facilitates the layout of other components such as the fuel tank and gives the frame 100 a stable structure, which helps to improve the rigidity of the frame 100 and improve the handling level of the vehicle.

[0035] Furthermore, the engine 103 includes a power unit 1031 and a transmission unit 1032. It is understood that the power unit 1031 includes a cylinder and a piston, and the transmission unit 1032 includes a gearbox. The length direction of the power unit 1031 is parallel to the length direction of the gas cylinder 102, thereby providing more installation space for the gas cylinder 102 and preventing excessive heat transfer from the engine 103 to the gas cylinder 102 due to an excessively small distance between them, which is beneficial for improving the vehicle's operational stability. Furthermore, the power unit 1031 extends outward from the first mounting cavity 105 and is located between the first side pipe 131 and the second side pipe 132, further reserving installation space for the gas cylinder 102. Meanwhile, since the power unit 1031 releases a large amount of heat during operation, and the exhaust pipe of the engine 103 is located on the power unit 1031, the power unit 1031, which protrudes from the first mounting cavity 105, can keep the power unit 1031 and the exhaust pipe away from the gas cylinder 102, thus preventing the gas cylinder 102 from generating high temperatures. Furthermore, a reinforcing pipe 133 is provided between the first side pipe 131 and the second side pipe 132. The reinforcing pipe 133 is located at the bottom of the engine 103, which can further improve the structural rigidity and strength of the frame 100.

[0036] Understandably, a first connecting frame 104 is provided between the first side frame 111 and the second side frame 112. The first connecting frame 104 is simultaneously connected to the first inclined tube 114 and the second inclined tube 116. The engine 103 is fixedly installed at the end of the first connecting frame 104 away from the side frame. Further, a second support frame 119 is provided at the end of the first connecting frame 104 connected to the engine 103. The second support frame 119 is provided with a second mounting sleeve 120, which wraps around the outer periphery of the gas cylinder 102 to achieve the installation and fixation of the gas cylinder 102 within the first mounting cavity 105. Further, a second connecting frame 107 is provided between the first side frame 111 and the second side frame 112. The second connecting frame 107 is simultaneously connected to the ends of the first inclined tube 114 and the second inclined tube 116 away from the upper beam 101. The engine 103 is connected to the second connecting frame 107 so that the engine 103 is fixedly installed within the first mounting cavity 105.

[0037] Understandably, the frame 100 also includes a first tailpipe 134 and a second tailpipe 135. The first tailpipe 134 connects to the ends of the first upper tube 113 and the first side tube 131 away from the upper beam 101. The second tailpipe 135 connects to the ends of the second upper tube 115 and the second side tube 132 away from the upper beam 101. This creates a triangular-like structure for the first side frame 111 and the second side frame 112, which helps improve the structural strength of the frame 100. Furthermore, both the first side frame 111 and the second side frame 112 are provided with a first support frame 117. The first support frame 117 is located on both sides of the gas cylinder 102. A first mounting sleeve 118 is provided between the two first support frames 117. The first mounting sleeve 118 wraps around the outer periphery of the gas cylinder 102 to fix the gas cylinder 102 within the second mounting cavity 106.

[0038] It is understood that a sealing plate 121 is provided between the first side frame 111 and the second side frame 112. The two ends of the sealing plate 121 are detachably fixed to the first tail pipe 134 and the second tail pipe 135. The sealing plate 121 can abut against the end of the gas cylinder 102 away from the first mounting cavity 105 to prevent the gas cylinder 102 from slipping and improve the installation stability of the gas cylinder 102.

[0039] According to an embodiment of the second aspect of this utility model, a dual-fuel motorcycle is provided, including the aforementioned mounting structure for a power unit. It is understood that the dual-fuel motorcycle incorporates all the technical features of the mounting structure for a power unit, and therefore the dual-fuel motorcycle includes at least all the beneficial effects of the mounting structure for a power unit.

[0040] 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. A mounting structure for a power unit, characterized in that, include: The vehicle includes a frame, an engine, and a gas cylinder. The frame comprises a top beam, a middle frame, and a bottom frame. The bottom frame is located below the top beam. The middle frame is connected to one end of the top beam. The two ends of the bottom frame are respectively connected to the bottom of the middle frame and the top beam, thereby forming a first mounting cavity with the top beam and the bottom frame. The engine is located in the first mounting cavity. The middle frame includes two side frames, which form a second mounting cavity. The first mounting cavity and the second mounting cavity are connected. The gas cylinder passes through the first mounting cavity and the second mounting cavity.

2. The mounting structure of a power device according to claim 1, characterized in that, The side frame is provided with a first support frame, which is located on both sides of the gas cylinder. A first mounting sleeve is provided between the first support frames of the two side frames, and the first mounting sleeve is wrapped around the outer periphery of the gas cylinder.

3. The mounting structure of a power device according to claim 1, characterized in that, The side frame includes a first side frame and a second side frame. The first side frame is provided with a first upper tube and a first inclined tube. The second side frame includes a second upper tube and a second inclined tube. The gas cylinder is located between the first inclined tube and the second inclined tube.

4. The mounting structure of a power device according to claim 1, characterized in that, A first connecting bracket is provided between the two side frames, and the engine is fixedly installed at the end of the first connecting bracket away from the side frames.

5. The mounting structure of a power unit according to claim 4, characterized in that, The first connecting frame is provided with a second support frame at the end where it is connected to the engine. The second support frame is provided with a second mounting sleeve, which is wrapped around the outer periphery of the gas cylinder.

6. The mounting structure of a power unit according to claim 1, characterized in that, The engine includes a power unit and a transmission unit, wherein the length direction of the power unit is parallel to the length direction of the gas cylinder.

7. The mounting structure of a power unit according to claim 6, characterized in that, The base frame includes a first side tube and a second side tube, which are respectively connected to the bottom sides of the middle frame.

8. The mounting structure of a power unit according to claim 7, characterized in that, The power unit extends outward from the first mounting cavity and is located between the first side tube and the second side tube.

9. The mounting structure of a power device according to claim 1, characterized in that, A sealing plate is provided between the two side frames, and the sealing plate can abut against the end of the gas cylinder away from the first mounting cavity.

10. A dual-fuel motorcycle, characterized in that, It includes the mounting structure of a power unit as described in any one of claims 1 to 9.