Cooling fin for cylinder cover of air-cooled diesel engine

Abstract

The utility model relates to the technical field of engines, and particularly discloses a radiating fin for a cylinder cover of an air-cooled diesel engine, when the air-cooled diesel engine runs, outside air enters a cylinder cover body through an air inlet, the air inlet guides the air to flow into a Y-shaped exhaust passage, and the special structure of the Y-shaped exhaust passage enables the air to be uniformly dispersed and fully contact with the internal Y-shaped fin, so that the radiating effect of the air-cooled diesel engine is improved. The Y-shaped fins are in a matched Y shape, the heat dissipation area is increased, heat exchange is facilitated, heat is conducted to low-temperature air from the high-temperature Y-shaped fins, the air convection heat dissipation effect is further enhanced through the shape of the Y-shaped fins, air flows in from the air inlet, the heat is taken away through the Y-shaped fins, and then the air is exhausted through the exhaust port located in the lower end of the air inlet. Hot air is exhausted to form pressure difference in the cylinder cover body, more fresh cold air is promoted to enter, continuous heat dissipation circulation is formed, the temperature of the cylinder cover body is effectively reduced, local overheating is avoided, and the stability and reliability of an engine are improved.

Description

Technical Field

[0001] This utility model relates to the field of engine technology, and in particular to a cooling fin for the cylinder head of an air-cooled diesel engine. Background Technology

[0002] As a crucial power unit, the heat dissipation of air-cooled engines has always been a key factor limiting their performance and reliability. However, existing air-cooled engine fin structures suffer from low heat dissipation efficiency and uneven heat distribution, making it difficult to meet the cooling requirements of high-performance engines. Therefore, a novel heat dissipation fin system is urgently needed to improve the engine's heat dissipation efficiency and stability. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a cooling fin for the cylinder head of an air-cooled diesel engine, which solves the problems of low heat dissipation efficiency and uneven heat dissipation in existing air-cooled engine cooling fin structures, making it difficult to meet the heat dissipation requirements of high-performance engines.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A cooling fin assembly for an air-cooled diesel engine cylinder head includes a cylinder head body. The cylinder head body has a cooling fin assembly and a cooling air duct assembly inside. The cooling fin assembly includes a set of Y-shaped fins. The cooling air duct assembly includes a Y-shaped exhaust duct, an intake port, and an exhaust port. The Y-shaped exhaust duct is located inside the cylinder head body. All of the Y-shaped fins are located inside the cylinder head body.

[0006] Preferably, all of the Y-shaped fins are arranged inside the Y-shaped exhaust channel.

[0007] Preferably, the air intake is located inside the cylinder head body.

[0008] Preferably, the exhaust port is located inside the cylinder head body.

[0009] Preferably, the exhaust port is located at the lower end of the air inlet.

[0010] Preferably, both the air inlet and the exhaust outlet are connected to the Y-shaped exhaust channel.

[0011] Preferably, two sets of outer ring heat dissipation fins are fixedly connected to the outer surface of the cylinder head body.

[0012] Preferably, the two sets of outer ring heat dissipation fins are equally distributed inside the cylinder head body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] 1. When the air-cooled diesel engine is running, outside air enters the cylinder head body through the intake port. The intake port guides the air into the Y-shaped exhaust port. The special structure of the Y-shaped exhaust port makes the air evenly dispersed and fully contacts the internal Y-shaped fins. The Y-shaped fins adopt a suitable Y-shape to increase the heat dissipation area and facilitate heat exchange. Heat is conducted from the high-temperature Y-shaped fins to the low-temperature air. Its shape also enhances the air convection heat dissipation effect. The air flows in from the intake port, and after the Y-shaped fins carry away the heat, it is discharged from the exhaust port located at the lower end of the intake port. The discharge of hot air creates a pressure difference in the cylinder head body, which promotes the entry of more fresh cold air and forms a continuous heat dissipation cycle. This not only effectively reduces the temperature of the cylinder head body, but also avoids local overheating and improves the stability and reliability of the engine. Attached Figure Description

[0015] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a cross-sectional view of the cylinder head body of this utility model.

[0018] Legend: 11. Cylinder head body; 12. Heat sink fin assembly; 13. Cooling air duct assembly; 14. Y-shaped fins; 15. Y-shaped exhaust duct; 16. Outer ring heat sink fins; 17. Air inlet; 18. Exhaust outlet. Detailed Implementation

[0019] This application provides a cooling fin for the cylinder head of an air-cooled diesel engine, effectively solving the problems of low heat dissipation efficiency and uneven heat dissipation in existing air-cooled engine cooling fin structures, which are difficult to meet the heat dissipation requirements of high-performance engines. When the air-cooled diesel engine is running, outside air enters the cylinder head body through the intake port. The intake port guides the air into the Y-shaped exhaust passage. The special structure of the Y-shaped exhaust passage ensures that the air is evenly dispersed and fully contacts the internal Y-shaped fins. The Y-shaped fins adopt a suitable Y-shape to increase the heat dissipation area and facilitate heat exchange. Heat is conducted from the high-temperature Y-shaped fins to the low-temperature air. Its shape also enhances the air convection heat dissipation effect. Air flows in from the intake port, carries away heat through the Y-shaped fins, and is discharged from the exhaust port located at the lower end of the intake port. The discharge of hot air creates a pressure difference in the cylinder head body, prompting more fresh cold air to enter and forming a continuous heat dissipation cycle. This not only effectively reduces the temperature of the cylinder head body but also avoids local overheating, improving the stability and reliability of the engine.

[0020] Example

[0021] like Figure 1 and Figure 2 As shown, the technical solution in this application embodiment effectively solves the problems of low heat dissipation efficiency and uneven heat dissipation in existing air-cooled engine heat dissipation fin structures, making it difficult to meet the heat dissipation requirements of high-performance engines. The overall idea is as follows: A heat dissipation fin for an air-cooled diesel engine cylinder head includes a cylinder head body 11. The cylinder head body 11 is internally provided with a heat dissipation fin assembly 12 and a cooling air duct assembly 13. The heat dissipation fin assembly 12 includes a set of Y-shaped fins 14. The cooling air duct assembly 13 includes a Y-shaped exhaust duct 15, an air inlet 17, and an exhaust outlet 18. The Y-shaped exhaust duct 15 is opened in the cylinder head body. Inside the cylinder head body 11, a set of Y-shaped fins 14 are disposed inside the cylinder head body 11, and another set of Y-shaped fins 14 are disposed inside the Y-shaped exhaust port 15. The intake port 17 and exhaust port 18 are located inside the cylinder head body 11. When the high-temperature cylinder head body 11 transfers heat to the Y-shaped fins 14, the large area of ​​the Y-shaped fins 14 allows for more efficient heat exchange with the flowing air. According to the principle of heat conduction, heat is transferred from the high-temperature Y-shaped fins 14 to the low-temperature air. Simultaneously, the shape of the Y-shaped fins 14 optimizes the airflow path on their surface, allowing for more efficient airflow. The air can flow more quickly, enhancing the convective cooling effect. As air continuously flows in from the intake port 17, carries away heat through the Y-shaped fins 14, and then exits from the exhaust port 18, a continuous cooling cycle is formed, effectively reducing the temperature of the cylinder head body 11. The air passing through the Y-shaped fins 14 absorbs heat and becomes hot air. This hot air moves with the airflow and exits the cylinder head body 11 through the exhaust port 18. The exhaust port 18 is located at the lower end of the intake port 17 and is connected to the Y-shaped exhaust passage 15. This layout facilitates the smooth exit of hot air. As the hot air exits... A certain pressure difference is formed inside the cylinder head body 11, which prompts more fresh cold air to enter from the intake port 17, thereby maintaining the continuous heat dissipation process, ensuring the stability of heat dissipation efficiency, avoiding local overheating, improving the stability and reliability of the engine, and improving heat dissipation efficiency. The optimal heat dissipation capacity of the cylinder head body 11 can be achieved by increasing the number of Y-shaped fins 14 and adjusting the thickness and spacing of the Y-shaped fins 14, ensuring the stable operation of the engine. The heat dissipation fin assembly 12 and the cooling air duct assembly 13 both adopt a simple and reliable structure, are easy to manufacture and install, and are suitable for various air-cooled engines.

[0022] The exhaust port 18 is located at the lower end of the intake port 17. Both the intake port 17 and the exhaust port 18 are connected to the Y-shaped exhaust passage 15. The cylinder head body 11 is a key component of the air-cooled diesel engine. It seals the upper part of the cylinder and, together with the piston and cylinder wall, forms the combustion space, bearing the effects of high-temperature and high-pressure combustion gases. During the operation of the diesel engine, the cylinder head body 11 absorbs a large amount of heat. The cylinder head body 11 dissipates heat through the Y-shaped fins 14 and the intake port 17 provided inside it. The intake port 17 and the exhaust port 18 inside the cylinder head body 11 are used for air intake and exhaust. Both the intake port 17 and the exhaust port 18 are connected to the Y-shaped exhaust passage 15.

[0023] Two sets of outer ring cooling fins 16 are fixedly connected to the outer surface of the cylinder head body 11. The two sets of outer ring cooling fins 16 are equally distributed inside the cylinder head body 11. The two sets of outer ring cooling fins 16 fixedly connected to the outer surface of the cylinder head body 11 also play an auxiliary role in heat dissipation. They are directly exposed to the outside air. When air flows through the cylinder head body 11, the outer ring cooling fins 16 can exchange heat with the outside air and dissipate the heat from the surface of the cylinder head body 11.

[0024] To address the problems existing in the prior art, this utility model provides a cooling fin for the cylinder head of an air-cooled diesel engine. During operation, outside air enters the cylinder head body 11 through the intake port 17. The intake port 17 guides the air into the Y-shaped exhaust passage 15. The special structure of the Y-shaped exhaust passage 15 ensures uniform air dispersion and full contact with the internal Y-shaped fins 14. The Y-shaped fins 14 adopt a suitable Y-shape, increasing the heat dissipation area and facilitating heat exchange. Heat is conducted from the high-temperature Y-shaped fins 14 to the low-temperature air. Their shape also enhances the air convection cooling effect. Air flows in through the intake port 17, carries away heat through the Y-shaped fins 14, and is discharged through the exhaust port 18 located at the lower end of the intake port 17. The discharge of hot air creates a pressure difference within the cylinder head body 11, prompting more fresh, cold air to enter and forming a continuous cooling cycle. This not only effectively reduces the temperature of the cylinder head body 11 but also prevents localized overheating, improving the stability and reliability of the engine.

[0025] Cylinder head body 11: As a key component of air-cooled diesel engine, it seals the upper part of the cylinder and together with the piston, cylinder wall and other components, it forms the combustion space. During diesel engine operation, it is subjected to high temperature and high pressure combustion gases and absorbs a large amount of heat. Inside it, heat dissipation fin assembly 12 and cooling air duct assembly 13 are provided to provide basic space for heat dissipation.

[0026] Heat dissipation fin assembly 12: Composed of a set of Y-shaped fins 14, which are set in the Y-shaped exhaust passage 15 inside the cylinder head body 11. Its main function is to increase the heat dissipation area and improve the heat dissipation efficiency. By exchanging heat with the flowing air, it dissipates the heat transferred by the cylinder head body 11. It works in conjunction with the cooling air passage assembly 13 to ensure effective heat dissipation of the cylinder head body 11.

[0027] Cooling air duct assembly 13 includes a Y-shaped exhaust duct 15, an air inlet 17, and an exhaust outlet 18, providing a channel for airflow so that air can form a heat dissipation cycle inside the cylinder head body 11; the Y-shaped exhaust duct 15 guides the air to be evenly dispersed and fully contact the Y-shaped fins 14, the air inlet 17 guides the inlet of outside air to flow in, and the exhaust outlet 18 discharges the hot air after absorbing heat, which works in conjunction with the heat dissipation fin assembly 12 to achieve efficient heat dissipation;

[0028] Y-shaped fins 14: Their large area allows for more thorough heat exchange with the flowing air, transferring heat to the air according to the principle of heat conduction; the unique Y-shaped shape optimizes the airflow path on its surface, enhancing the air convection heat dissipation effect, and works in conjunction with the cooling air duct assembly 13 to effectively reduce the temperature of the cylinder head body 11 through continuous heat dissipation circulation; and by adjusting their number, thickness and spacing, the optimal heat dissipation capacity of the cylinder head body 11 can be achieved.

[0029] Y-shaped exhaust duct 15: Its Y-shaped structure allows the air flowing in from the air inlet 17 to be evenly dispersed and fully contact the internal Y-shaped fins 14, ensuring that the cooling airflow can cover the surface of each Y-shaped fin 14, creating conditions for efficient heat dissipation. Together with the air inlet 17, the exhaust 18 and the Y-shaped fins 14, it forms a heat dissipation channel to achieve heat dissipation circulation.

[0030] Inlet 17: Guides outside air into the cylinder head body 11, giving the air a certain flow speed and direction, so that it can smoothly enter the Y-shaped exhaust passage 15 and contact the Y-shaped fins 14 for heat exchange. It works with the exhaust port 18 to form the power of air flow and maintain the heat dissipation cycle.

[0031] Exhaust port 18: Used to exhaust hot air that has increased in temperature after absorbing heat. Its position and layout are conducive to the smooth exhaust of hot air. After the hot air is exhausted, a pressure difference is formed inside the cylinder head body 11, which prompts more fresh cold air to enter from the intake port 17, ensuring that the heat dissipation process continues and maintaining the stability of heat dissipation efficiency.

[0032] Outer ring cooling fins 16: Directly exposed to the outside air, when air flows through the cylinder head body 11, they exchange heat with the outside air, dissipating the heat from the surface of the cylinder head body 11, assisting in overall heat dissipation, enhancing the heat dissipation effect, and improving the stability and reliability of the engine.

[0033] Working principle:

[0034] The first step is that the cylinder head body 11 is a key component of the air-cooled diesel engine. It seals the upper part of the cylinder and, together with the piston and cylinder wall, forms the combustion space, bearing the effects of high-temperature and high-pressure combustion gases. During the operation of the diesel engine, the cylinder head body 11 absorbs a large amount of heat. The cylinder head body 11 dissipates heat through the Y-shaped fins 14 and the intake port 17 set inside it. The intake port 17 and exhaust port 18 inside the cylinder head body 11 are used for air intake and exhaust. The intake port 17 and exhaust port 18 are connected to the Y-shaped exhaust passage 15. The two sets of outer ring cooling fins 16 fixedly connected to the outer surface of the cylinder head body 11 also play an auxiliary role in heat dissipation. They are directly exposed to the outside air. When air flows through the cylinder head body 11, the outer ring cooling fins 16 can exchange heat with the outside air and dissipate the heat on the surface of the cylinder head body 11.

[0035] The second step involves the following steps during the operation of the air-cooled diesel engine. First, outside air enters the cylinder head body 11 through the intake port 17. The intake port 17 provides a specific flow velocity and direction for the incoming air, guiding it smoothly into the Y-shaped exhaust passage 15. Since the intake port 17 and the Y-shaped exhaust passage 15 are connected, the air flows along the Y-shaped path after entering the Y-shaped exhaust passage 15. The special structure of the Y-shaped exhaust passage 15 ensures that the air is evenly dispersed as it flows within it, thus fully contacting the set of Y-shaped fins 14 located inside. This design guarantees that the cooling airflow can cover each fin. The surface of the Y-shaped fin 14 creates conditions for efficient heat dissipation. The Y-shaped fin 14 adopts a Y-shaped design that matches the Y-shaped exhaust port 15. This unique geometry greatly increases the heat dissipation surface area. When the high-temperature cylinder head body 11 transfers heat to the Y-shaped fin 14, the large area of ​​the Y-shaped fin 14 can more fully exchange heat with the flowing air. According to the principle of heat conduction, heat will be transferred from the high-temperature Y-shaped fin 14 to the low-temperature air. At the same time, the shape of the Y-shaped fin 14 also optimizes the airflow path on its surface, allowing air to flow more quickly and increasing heat dissipation efficiency. The enhanced air convection cooling effect is achieved because air continuously flows in from the intake port 17, carries away heat through the Y-shaped fins 14, and is then discharged from the exhaust port 18, forming a continuous cooling cycle. This effectively reduces the temperature of the cylinder head body 11. The air passing through the Y-shaped fins 14 absorbs heat and its temperature rises, becoming hot air. This hot air moves with the airflow and is discharged from the cylinder head body 11 through the exhaust port 18. The exhaust port 18 is located at the lower end of the intake port 17 and is connected to the Y-shaped exhaust passage 15. This layout facilitates the smooth discharge of hot air. As the hot air is discharged, the cylinder head body 11... A certain pressure difference is formed inside, which prompts more fresh cold air to enter from the air intake 17, thereby maintaining the continuous heat dissipation process, ensuring the stability of heat dissipation efficiency, avoiding local overheating, improving the stability and reliability of the engine, and improving heat dissipation efficiency. The optimal heat dissipation capacity of the cylinder head body 11 can be achieved by increasing the number of Y-shaped fins 14 and adjusting the thickness and spacing of the Y-shaped fins 14, ensuring the stable operation of the engine. The heat dissipation fin assembly 12 and the cooling air duct assembly 13 both adopt a simple and reliable structure, are easy to manufacture and install, and are suitable for various air-cooled engines.

[0036] Finally, it should be noted that the above embodiments are merely examples for clearly illustrating the present invention and are not intended to limit the implementation. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A heat dissipation fin for a cylinder head of an air-cooled diesel engine, comprising a cylinder head body (11), characterized by, The cylinder head body (11) is internally provided with a heat dissipation fin assembly (12) and a cooling air duct assembly (13), the heat dissipation fin assembly (12) comprises a group of Y-shaped fins (14), and the cooling air duct assembly (13) comprises a Y-shaped exhaust air duct (15), an air inlet (17) and an exhaust air outlet (18), the Y-shaped exhaust air duct (15) is arranged in the cylinder head body (11). The Y-shaped fins (14) are arranged in the Y-shaped exhaust air duct (15).

2. A fin for a cylinder head of an air-cooled diesel engine according to claim 1, characterized in that The Y-shaped fins (14) are arranged in the Y-shaped exhaust air duct (15).

3. The fin for a cylinder head of an air-cooled diesel engine according to claim 1, wherein The air inlet (17) is arranged in the cylinder head body (11).

4. The fin for a cylinder head of an air-cooled diesel engine according to claim 1, wherein The exhaust air outlet (18) is arranged in the cylinder head body (11).

5. A fin for a cylinder head of an air-cooled diesel engine according to claim 4, characterized in that The exhaust air outlet (18) is arranged at the lower end of the air inlet (17).

6. A fin for a cylinder head of an air-cooled diesel engine according to claim 5, characterized in that The air inlet (17) and the exhaust air outlet (18) are communicated with the Y-shaped exhaust air duct (15).

7. A fin for a cylinder head of an air-cooled diesel engine according to claim 6, characterized in that The cylinder head body (11) is externally provided with two groups of outer ring heat dissipation fins (16).

8. A fin for a cylinder head of an air-cooled diesel engine according to claim 7, characterized in that The two groups of outer ring heat dissipation fins (16) are arranged in the cylinder head body (11) in a symmetrical manner.

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