Motorcycle engine cooling structure

Abstract

The utility model relates to the technical field of engine cooling, and discloses a motorcycle engine cooling structure which comprises an engine shell, a rotatable driving shaft is arranged on the engine shell, an eccentric wheel is fixedly arranged on the driving shaft in a sleeved mode, and the eccentric wheel and the driving shaft are arranged in a non-coaxial mode. A cooling structure is arranged in the engine shell, a cooling structure is arranged on the engine shell, and two suction structures are further arranged on the engine shell. According to the air exhaust and suction structure, the system can continuously extract hot air from the interior of the engine, exhaust the hot air and discharge the hot air into the outer layer pipe through the inner layer pipe, cooling liquid circularly flows in the outer layer pipe, and the temperature of the internal air is effectively reduced by cooling the hot air.

Description

Technical Field

[0001] The utility model relates to the technical field of engine cooling, in particular to a cooling structure for a motorcycle engine. Background Art

[0002] The engine cooling structure is a structure for cooling and dissipating heat of the engine, preventing the engine from overheating and ensuring the normal use of the engine.

[0003] Motorcycle engines in the prior art usually include two cooling methods: air cooling and liquid cooling. However, neither the air cooling nor the liquid cooling method can provide cold air inside the engine, and the internal temperature of the engine cannot be quickly reduced. Long-term high-temperature operation of the engine will cause components such as pistons and cylinder walls to overheat, thereby reducing the lifespan of the components. High temperature may also cause the engine oil and lubricating grease to fail, further affecting the overall performance and durability of the engine.

[0004] Therefore, it is necessary to design a cooling structure for a motorcycle engine to solve the above problems. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art and propose a cooling structure for a motorcycle engine.

[0006] To achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A cooling structure for a motorcycle engine includes an engine housing, a rotatable drive shaft is arranged on the engine housing, an eccentric wheel is fixedly sleeved on the drive shaft, and the eccentric wheel and the drive shaft are non-coaxial. A cooling structure is arranged inside the engine housing, a temperature reduction structure is arranged on the engine housing, and two suction structures are also arranged on the engine housing.

[0008] As a preferred technical solution of the utility model, the cooling structure includes an outer layer pipe and an inner layer pipe. The outer layer pipe is fixed inside the engine housing, the inner layer pipe is fixed inside the outer layer pipe, and one end of the inner layer pipe extends outside the outer layer pipe.

[0009] As a preferred technical solution of the utility model, the temperature reduction structure includes a cooling box, a coolant, and a semiconductor refrigeration sheet. The cooling box is fixed on the engine housing, the coolant is stored inside the cooling box, and the semiconductor refrigeration sheet is installed inside the cooling box.

[0010] As a preferred technical solution of the present utility model, the suction structure includes a sealing cylinder, a sliding plug, a spring, a connecting rod, two mounting pipes and two one-way valves. The sealing cylinder is fixed on the engine housing. The sliding plug is hermetically and slidably connected to the inner surface of the sealing cylinder. The spring is arranged between the sealing cylinder and the sliding plug. One end of the connecting rod is fixedly connected to the sliding plug, and the other end of the connecting rod extends to the outside of the sealing cylinder. One ends of the two mounting pipes are both communicated with the sealing cylinder, and the two one-way valves are respectively installed on the two mounting pipes.

[0011] As a preferred technical solution of the present utility model, the outer layer pipe has a spiral tubular structure, and the inner layer pipe is adapted to the shape of the outer layer pipe.

[0012] As a preferred technical solution of the present utility model, the two suction structures are respectively located on both sides of the eccentric wheel.

[0013] The present utility model has the following beneficial effects:

[0014] 1. Effective gas cooling: Through the air extraction and suction structure, the system can continuously extract hot gas from the engine interior, discharge it and introduce it into the outer layer pipe through the inner layer pipe. In the outer layer pipe, the coolant circulates, and by cooling the hot gas, the temperature of the internal gas is effectively reduced;

[0015] 2. Coolant circulation: The coolant is extracted and pumped between the outer layer pipe and the inner layer pipe, and then flows back to the cooling tank through the outer layer pipe, realizing the circulation of the coolant. This circulation ensures stable temperature control inside the engine and effectively prevents overheating;

[0016] 3. Enhanced liquid cooling effect: The coolant in the outer layer pipe not only cools the gas, but also can cool the interior of the engine housing through the outer layer pipe, thereby providing a more effective and comprehensive heat dissipation effect. Description of the Drawings

[0017] Figure 1 It is a schematic structural diagram of a motorcycle engine cooling structure proposed by the present utility model;

[0018] Figure 2 It is a schematic structural diagram of the engine housing;

[0019] Figure 3 It is a schematic structural diagram of the outer layer pipe and the inner layer pipe.

[0020] In the figure: 1 engine housing, 2 drive shaft, 3 eccentric wheel, 41 outer layer pipe, 42 inner layer pipe, 51 cooling tank, 52 coolant, 53 semiconductor refrigeration sheet, 61 sealing cylinder, 62 sliding plug, 63 spring, 64 connecting rod, 65 mounting pipe, 66 one-way valve. Detailed Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0022] Referring to Figures 1-3 , a cooling structure for a motorcycle engine, including an engine housing 1, a rotatable drive shaft 2 is provided on the engine housing 1, an eccentric wheel 3 is fixedly sleeved on the drive shaft 2, and the eccentric wheel 3 and the drive shaft 2 are non-coaxially arranged;

[0023] A cooling structure is provided inside the engine housing 1. The cooling structure includes an outer layer pipe 41 and an inner layer pipe 42. The outer layer pipe 41 is fixed inside the engine housing 1, the inner layer pipe 42 is fixed inside the outer layer pipe 41, and one end of the inner layer pipe 42 extends to the outside of the outer layer pipe 41. The outer layer pipe 41 has a spiral tubular structure, and the inner layer pipe 42 is adapted to the shape of the outer layer pipe 41. During the process of the coolant 52 flowing between the outer layer pipe 41 and the inner layer pipe 42, the inner part of the engine housing 1 can be cooled by liquid through the outer layer pipe 41. In addition, during the process of the gas flowing inside the inner layer pipe 42, the coolant 52 between the outer layer pipe 41 and the inner layer pipe 42 can also cool the gas flowing inside the inner layer pipe 42. The cooled gas will flow back into the inner part of the engine housing 1, thereby providing low-temperature gas inside the engine housing 1 and effectively cooling the engine housing 1;

[0024] A cooling structure is provided on the engine housing 1. The cooling structure includes a cooling box 51, a coolant 52 and a semiconductor refrigeration sheet 53. The cooling box 51 is fixed on the engine housing 1, the coolant 52 is stored inside the cooling box 51, the semiconductor refrigeration sheet 53 is installed inside the cooling box 51, and the semiconductor refrigeration sheet 53 is also installed inside the cooling box 51. When the semiconductor refrigeration sheet 53 is powered on, it can cool the coolant 52 inside the cooling box 51. The low-temperature coolant can not only ensure the cooling effect on the inside of the engine housing 1, but also ensure the cooling effect on the gas flowing inside the inner layer pipe 42, thereby ensuring the heat dissipation performance of the engine;

[0025] There are also two suction structures provided on the engine housing 1, and the two suction structures are respectively located on both sides of the eccentric wheel 3. The suction structure includes a sealing cylinder 61, a sliding plug 62, a spring 63, a connecting rod 64, two mounting pipes 65 and two one-way valves 66. The sealing cylinder 61 is fixed on the engine housing 1, the sliding plug 62 is hermetically and slidably connected to the inner surface of the sealing cylinder 61, the spring 63 is arranged between the sealing cylinder 61 and the sliding plug 62, one end of the connecting rod 64 is fixedly connected to the sliding plug 62, the other end of the connecting rod 64 extends to the outside of the sealing cylinder 61, one ends of the two mounting pipes 65 are both communicated with the sealing cylinder 61, and the two one-way valves 66 are respectively installed on the two mounting pipes 65. When the eccentric wheel 3 rotates, it will periodically squeeze the connecting rod 64. When the eccentric wheel 3 squeezes the connecting rod 64, the connecting rod 64 can drive the sliding plug 62 to move. When the eccentric wheel 3 is separated from the connecting rod 64, the sliding plug 62 will reset under the action of the spring 63. Therefore, with the rotation of the drive shaft 2, the sliding plug 62 will reciprocate inside the sealing cylinder 61.

[0026] The specific working principle of the present utility model is as follows:

[0027] In the motorcycle engine cooling structure proposed by the present utility model, there are two suction structures, and the two suction structures are respectively arranged on both sides of the eccentric wheel 3. One of the suction structures is used for air extraction, and the other suction structure is used for liquid extraction. For the suction structure used for air extraction, one end of one of the mounting pipes 65 is communicated with one end of the inner layer pipe 42, and one end of the other mounting pipe 65 is communicated with the inside of the engine housing 1. For the suction structure used for liquid extraction, one of the mounting pipes 65 is communicated with the cooling tank 51, and the other mounting pipe 65 is communicated with one end of the outer layer pipe 41, and the other end of the outer layer pipe 41 is communicated with the cooling tank 51;

[0028] For the suction structure, when the motorcycle engine is running, the drive shaft 2 can drive the eccentric wheel 3 to rotate. When the eccentric wheel 3 rotates, it will periodically squeeze the connecting rod 64. When the eccentric wheel 3 squeezes the connecting rod 64, the connecting rod 64 can drive the piston 62 to move. When the eccentric wheel 3 separates from the connecting rod 64, the piston 62 will reset under the action of the spring 63. Therefore, with the rotation of the drive shaft 2, the piston 62 will reciprocate inside the sealing cylinder 61. Since the flow-limiting directions of the two one-way valves 66 are opposite, specifically, one of the one-way valves 66 restricts the gas and liquid to only enter the inside of the sealing cylinder 61, and the other one-way valve 66 restricts the gas and liquid to only flow out of the sealing cylinder 61. Therefore, for the suction structure used for air extraction, the suction structure can continuously extract the air inside the engine housing 1 and continuously discharge the air inside the engine housing 1 into the inner layer pipe 42. For the suction structure used for liquid extraction, the suction structure can continuously extract the coolant 52 in the cooling tank 51 and pump the coolant 52 into the space between the outer layer pipe 41 and the inner layer pipe 42. Further, the coolant 52 will flow back into the inside of the cooling tank 51 through the outer layer pipe 41, realizing the circulating flow of the coolant 52. In summary, during the process of the coolant 52 flowing between the outer layer pipe 41 and the inner layer pipe 42, it can cool the inside of the engine housing 1 through the outer layer pipe 41. In addition, during the process of the gas flowing inside the inner layer pipe 42, the coolant 52 between the outer layer pipe 41 and the inner layer pipe 42 can also cool the gas flowing inside the inner layer pipe 42. The cooled gas will flow back into the inside of the engine housing 1, thereby providing low-temperature gas inside the engine housing 1 and effectively cooling the engine housing 1;

[0029] Further, a semiconductor refrigeration sheet 53 is also installed inside the cooling tank 51. When the semiconductor refrigeration sheet 53 is powered on, it can cool the coolant 52 inside the cooling tank 51. The low-temperature coolant can not only ensure the cooling effect on the inside of the engine housing 1, but also ensure the cooling effect on the gas flowing inside the inner layer pipe 42, thereby ensuring the heat dissipation performance of the engine.

[0030] The above is only the preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A motorcycle engine cooling structure, comprising an engine housing (1), wherein a rotatable drive shaft (2) is disposed on the engine housing (1), characterized in that: An eccentric wheel (3) is fixedly mounted on the drive shaft (2), and the eccentric wheel (3) and the drive shaft (2) are arranged non-coaxially. A cooling structure is arranged inside the engine casing (1), a cooling structure is arranged on the engine casing (1), and two suction structures are also arranged on the engine casing (1).

2. A motorcycle engine cooling structure according to claim 1, characterized in that: The cooling structure comprises an outer tube (41) and an inner tube (42); the outer tube (41) is fixed inside the engine casing (1); the inner tube (42) is fixed inside the outer tube (41); and one end of the inner tube (42) extends to the outside of the outer tube (41).

3. A motorcycle engine cooling structure according to claim 1, characterized in that: The cooling structure comprises a cooling box (51), a cooling liquid (52) and a semiconductor cooling sheet (53); the cooling box (51) is fixed on the engine casing (1); the cooling liquid (52) is accumulated inside the cooling box (51); and the semiconductor cooling sheet (53) is installed inside the cooling box (51).

4. A motorcycle engine cooling structure according to claim 1, characterized in that: The suction structure comprises a sealing cylinder (61), a sliding plug (62), a spring (63), a connecting rod (64), two mounting tubes (65) and two one-way valves (66); the sealing cylinder (61) is fixed on the engine housing (1); the sliding plug (62) is sealingly and slidably connected to the inner surface of the sealing cylinder (61); the spring (63) is arranged between the sealing cylinder (61) and the sliding plug (62); one end of the connecting rod (64) is fixedly connected to the sliding plug (62); the other end of the connecting rod (64) extends to the outside of the sealing cylinder (61); one end of the two mounting tubes (65) are both connected to the sealing cylinder (61); and the two one-way valves (66) are respectively mounted on the two mounting tubes (65).

5. A motorcycle engine cooling structure according to claim 2, characterized in that: The outer tube (41) is in a spiral tube structure, and the inner tube (42) is adapted to the shape of the outer tube (41).

6. A motorcycle engine cooling structure according to claim 1, characterized in that: The two suction structures are respectively located on both sides of the eccentric wheel (3).

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