Heat dissipation air duct structure of motorcycle engine

Abstract

The utility model provides a motorcycle engine heat dissipation air duct structure which comprises an engine air cylinder cover body, a plurality of first heat dissipation fins are fixedly arranged at the center of an inner cavity of the engine air cylinder cover body at equal intervals, and a cooling flow channel is formed between every two adjacent first heat dissipation fins. An air inlet is formed in one side of an inner cavity of the engine cylinder cover body, and a first air outlet and a second air outlet are sequentially formed in the two corners of one side of the inner cavity of the engine cylinder cover body. The second air outlet and the fourth air outlet are additionally formed in the two sides of the inner wall of the engine cylinder cover body, the four-air-duct design of the engine cylinder cover body is achieved, compared with a traditional two-air-duct design, the heat dissipation area of an inner cavity is increased, heat entering an exhaust duct from a cylinder head can be reduced, the heat dissipation efficiency is improved, and the service life of the engine cylinder cover body is prolonged. And the power of the engine is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of motorcycle engines, and relates to a heat dissipation air duct structure of a motorcycle engine. Background Technique

[0002] The motorcycle engine is the source of the driving force of the motorcycle. Through the operation of the motorcycle engine, the driving of the motorcycle is realized.

[0003] Among them, the cooling air duct of the motorcycle engine cylinder head is an important component for the heat dissipation of the motorcycle engine. After retrieval, according to the patent number "CN220890336U", a heat dissipation air duct structure of a motorcycle engine cylinder head is disclosed, including a cylinder head body and a cooling air duct arranged in the cylinder head body. The cooling air duct includes an air inlet and an air outlet that communicate with each other, and the air outlet includes a first air outlet and a second air outlet. This heat dissipation air duct structure of the motorcycle engine cylinder head is provided with two air outlets, which increases the heat dissipation area of the cooling air duct and the passing flow rate of cold air, effectively takes away the heat in the cylinder head in time, and improves the heat dissipation efficiency of the cylinder head.

[0004] The above-mentioned heat dissipation air duct of the motorcycle engine cylinder head mainly adopts a two-air-duct structure design. During the use process, we found that due to the large size of the inner cavity, with the two-air-duct design, the heat dissipation efficiency of the inner cavity is relatively low. During the operation of the engine, there will still be an overheating phenomenon of the cylinder head, and a large amount of heat is transmitted to the mixture through the inner wall of the intake air duct, resulting in too high a temperature of the mixture and a reduction in the intake air volume. For this reason, we designed a heat dissipation air duct structure of a motorcycle engine to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a heat dissipation air duct structure of a motorcycle engine to solve the problems of overheating of the cylinder head still occurring with the two-air-duct design as mentioned in the above background technique, and a large amount of heat is transmitted to the mixture through the inner wall of the intake air duct, resulting in too high a temperature of the mixture and a reduction in the intake air volume.

[0006] The purpose of the utility model can be achieved by the following technical solutions: A heat dissipation air duct structure of a motorcycle engine, including an engine cylinder head body. A plurality of first heat dissipation fins are fixedly arranged at equal intervals at the center of the inner cavity of the engine cylinder head body, and a cooling flow channel is formed between two adjacent first heat dissipation fins. An air inlet is opened at one side of the inner cavity of the engine cylinder head body, and a first air outlet and a second air outlet are successively opened at two corners on one side of the inner cavity of the engine cylinder head body, and a third air outlet and a fourth air outlet are successively opened at the other side of the inner cavity of the engine cylinder head body.

[0007] In the above-mentioned heat dissipation air duct structure of a motorcycle engine, the first air outlet is aligned with the third air outlet, and the second air outlet is aligned with the fourth air outlet.

[0008] In the above-mentioned heat dissipation air duct structure of a motorcycle engine, at least three second heat dissipation fins are equidistantly fixed on the other side of the inner cavity of the engine cylinder head body, and the shape of the second heat dissipation fin is an inverted U shape.

[0009] In the above-mentioned heat dissipation air duct structure of a motorcycle engine, multiple first heat dissipation fins are arranged in a staggered manner, and the multiple first heat dissipation fins are integrally formed with the engine cylinder head body.

[0010] In the above-mentioned heat dissipation air duct structure of a motorcycle engine, there are at least three first heat dissipation fins.

[0011] Compared with the prior art, the advantages of the heat dissipation air duct structure of a motorcycle engine of the present utility model are as follows: By adding a second air outlet and a fourth air outlet on both sides of the inner wall of the engine cylinder head body, a four-air duct design of the engine cylinder head body is realized. Compared with the traditional two-air duct design, the heat dissipation area of the inner cavity is increased, and the heat of the cylinder head can be reduced from entering the exhaust duct, the heat dissipation efficiency is improved, and the power of the engine is effectively increased. Brief Description of the Drawings

[0012] Figure 1 is a schematic structural diagram of a heat dissipation air duct structure of a motorcycle engine of the present utility model.

[0013] Figure 2 is a top view structural diagram of a heat dissipation air duct structure of a motorcycle engine of the present utility model.

[0014] Figure 3 is a sectional top view structural diagram of a heat dissipation air duct structure of a motorcycle engine of the present utility model.

[0015] Figure 4 is a side view structural diagram of a heat dissipation air duct structure of a motorcycle engine of the present utility model.

[0016] In the figure, 1. Engine cylinder head body; 2. Air inlet; 3. Cooling flow channel; 4. First heat dissipation fin; 5. Second heat dissipation fin; 6. First air outlet; 7. Second air outlet; 8. Third air outlet; 9. Fourth air outlet. Detailed Description of the Preferred Embodiments

[0017] The following are specific embodiments of the present utility model in combination with the drawings, and the technical solutions of the present utility model will be further described, but the present utility model is not limited to these embodiments.

[0018] Such as Figure 3As shown in the figure, a heat dissipation air duct structure of a motorcycle engine of the present utility model includes an engine cylinder head body 1. A plurality of first heat dissipation fins 4 are equidistantly fixed at the center of the inner cavity of the engine cylinder head body 1. A cooling flow channel 3 is formed between two adjacent first heat dissipation fins 4. An air inlet 2 is provided on one side of the inner cavity of the engine cylinder head body 1. A first air outlet 6 and a second air outlet 7 are successively provided at two corners on one side of the inner cavity of the engine cylinder head body 1. A third air outlet 8 and a fourth air outlet 9 are successively provided on the other side of the inner cavity of the engine cylinder head body 1.

[0019] Specifically, by adding a second air outlet 7 and a fourth air outlet 9 on both sides of the inner wall of the engine cylinder head body 1, a four-air duct design of the engine cylinder head body 1 is realized. Compared with the traditional two-air duct design, the heat dissipation area of the inner cavity is increased, the heat dissipation efficiency is improved, and the heat of the cylinder head can be reduced from being transferred to the air mixture through the intake duct wall, effectively improving the power of the engine.

[0020] As Figure 1 、 Figure 2 、 Figure 3 and Figure 4 shown, in a heat dissipation air duct structure of a motorcycle engine of the present utility model, the first air outlet 6 is aligned with the third air outlet 8, and the second air outlet 7 is aligned with the fourth air outlet 9.

[0021] Specifically, by aligning the first air outlet 6 with the third air outlet 8 and the second air outlet 7 with the fourth air outlet 9, two-way synchronous discharge of air can be achieved.

[0022] At least three second heat dissipation fins 5 are equidistantly fixed on the other side of the inner cavity of the engine cylinder head body 1. The shape of the second heat dissipation fins 5 is an inverted U shape.

[0023] Specifically, through the inverted U shape design, the heat dissipation area is increased, and at the same time, the air resistance of the gas flowing out can be reduced, improving the smoothness of the heat dissipation air duct.

[0024] A plurality of first heat dissipation fins 4 are arranged in a staggered manner and are integrally formed with the engine cylinder head body 1.

[0025] The first heat dissipation fins 4 are at least three.

[0026] In specific implementation, for the setting of the heat dissipation air duct structure of the engine cylinder head, by adding a second air outlet 7 and a fourth air outlet 9 on both sides of the inner wall of the engine cylinder head body 1, a four-air duct design of the engine cylinder head body 1 is realized. Compared with the traditional two-air duct design, the heat dissipation area of the inner cavity is increased, and the heat of the cylinder head can be reduced from entering the exhaust duct, the heat dissipation efficiency is improved, effectively improving the power of the engine.

[0027] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The specific embodiments described herein are merely illustrative of the spirit of the present utility model. Those skilled in the art to which the present utility model pertains may make various modifications or supplements to the described specific embodiments or use similar means for substitution, but will not deviate from the spirit of the present utility model or exceed the scope defined by the appended claims.

Claims

1. A motorcycle engine heat dissipation duct structure, comprising an engine cylinder head body (1), characterized in that: A plurality of first heat sinks (4) are fixedly arranged at equal intervals at the center of the inner cavity of the engine cylinder head body (1), and a cooling channel (3) is formed between two adjacent first heat sinks (4). An air inlet (2) is provided on one side of the inner cavity of the engine cylinder head body (1), a first air outlet (6) and a second air outlet (7) are provided in sequence at two corners on one side of the inner cavity of the engine cylinder head body (1), and a third air outlet (8) and a fourth air outlet (9) are provided in sequence on the other side of the inner cavity of the engine cylinder head body (1).

2. A motorcycle engine heat dissipation duct structure according to claim 1, characterized in that: The first air outlet (6) is aligned with the third air outlet (8), and the second air outlet (7) is aligned with the fourth air outlet (9).

3. A motorcycle engine heat dissipation duct structure according to claim 1, characterized in that: At least three second cooling fins (5) are fixedly arranged at equal intervals on the other side of the inner cavity of the engine cylinder head body (1), and the shape of the second cooling fins (5) is an inverted U shape.

4. A motorcycle engine heat dissipation duct structure according to claim 1, characterized in that: The plurality of first cooling fins (4) are arranged in a staggered manner, and the plurality of first cooling fins (4) are integrally formed with the engine cylinder head body (1).

5. The motorcycle engine heat dissipation duct structure according to claim 1, characterized in that: The number of the first heat sinks (4) is at least three.

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