Multi-cooling-channel engine cylinder head

Abstract

The utility model discloses a multi-cooling-channel engine cylinder head which comprises a cylinder head body, a cooling air channel set is arranged in the cylinder head body, and an air channel partition plate and an air channel choke plate which are used for dispersing airflow are further arranged in the cylinder head body. The air duct partition plate and the air duct choke plate which are used for dispersing air flow are additionally arranged in the cylinder head body, cooling air which originally only passes through the main cooling air duct is guided in the cylinder body and flows to the first cooling air duct and the second cooling air duct, a circulating cooling structure is formed, distribution of the cooling air is optimized, and cooling efficiency is improved. Compared with an air duct structure in the cylinder head body in the prior art, the air duct structure in the cylinder head body enables the circulation range of external cooling air in the cylinder head body to be enlarged, so that the internal heat dissipation efficiency of the cylinder head body is further improved, the heat load is lower, the heat fade of an engine is reduced, and the service life of the engine is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of engine components, in particular to a multi-cooling channel engine cylinder head. Background Art

[0002] The cylinder head of a motorcycle engine, also known as the cylinder cover, is an important part of the engine and is located at the top of the cylinder. The main function of the cylinder head is to seal the cylinder to ensure that the gas in the combustion chamber does not leak during the compression and combustion processes.

[0003] The cylinder heads of existing air-cooled engines usually include relatively large cooling fins and air ducts to increase the flow of cooling air and the heat dissipation effect. As Figure 1 shown, this kind of cylinder head has a simple structure, and the cooling air ducts set therein are relatively single. During the running of the motorcycle, the cooling air enters from the air inlet on the windward side of the left part, and then passes through the air duct and is discharged from the air outlet on the right part. Since there is no obstruction in its cooling air duct, the external cooling air directly enters from the air inlet and is discharged from the air outlet, resulting in a relatively small heat dissipation range and a limited air-cooling effect. How to improve the internal heat dissipation effect without affecting the normal function of the cylinder head is a problem worthy of consideration. Content of the Utility Model

[0004] The utility model provides a multi-cooling channel engine cylinder head to solve the above-mentioned existing technical problems.

[0005] The technical solution of the utility model is realized as follows:

[0006] A multi-cooling channel engine cylinder head includes a cylinder head body. A cooling air duct group is arranged inside the cylinder head body, and a plurality of air duct partition plates and air duct wind blocking plates for dispersing air flow are also arranged inside the cylinder head body.

[0007] Further, the cooling air duct group includes a first cooling air duct, a second cooling air duct and a main cooling air duct. The inlet of the main cooling air duct is located on the windward side of the cylinder head body, and the outlet of the main cooling air duct is located on the leeward side of the cylinder head body.

[0008] Further, a spark plug mounting hole is also arranged inside the cylinder head body.

[0009] Further, the first cooling air duct and the second cooling air duct are respectively distributed outside the spark plug mounting hole.

[0010] Further, one end of each of the first cooling air duct and the second cooling air duct is communicated with the main cooling air duct, and the other ends of the first cooling air duct and the second cooling air duct are communicated with each other.

[0011] Further, one end of the air duct partition plate is arranged inside the cylinder head body near the connection of the first cooling air duct, the second cooling air duct and the main cooling air duct, and the other end extends to the spark plug installation hole for separating the first cooling air duct and the second cooling air duct.

[0012] One of the several air duct partition plates is arranged on the side of the first cooling air duct away from the spark plug installation hole.

[0013] Further, the air duct wind blocking plate is arranged near the air outlet of the main cooling air duct.

[0014] Further, the air duct partition plate and the air duct wind blocking plate are integrally arranged inside the cylinder head body, and a return space is left between the air duct partition plate and the air duct wind blocking plate.

[0015] Compared with the prior art, the utility model has the following beneficial effects: by adding an air duct partition plate and an air duct wind blocking plate for dispersing air flow inside the cylinder head body, the cooling air that originally only passes through the main cooling air duct is guided inside the cylinder block, making it flow to the first cooling air duct and the second cooling air duct, optimizing the distribution of the cooling air, effectively accelerating the reduction of the temperature of the cylinder head body. Different from the air duct structure inside the cylinder head body of the prior art, the range of the external cooling air flowing inside the cylinder head body becomes larger, thereby further improving the internal heat dissipation efficiency of the cylinder head body, making the heat load lower, reducing the engine heat decline, and prolonging the service life of the engine. It solves the problem that the cooling air duct set in the cylinder head of the prior art is relatively single. During the running of the motorcycle, after the cooling air enters from the air inlet on the left windward side, it passes through the air duct and is discharged from the air outlet on the right. Since there is no obstruction in the cooling air duct, the external cooling air directly discharges from the air outlet after entering from the air inlet, and the heat dissipation range is small, resulting in a relatively limited air cooling effect. Description of the Drawings

[0016] Figure 1 It is a schematic cross-sectional structure view of the cylinder head body in the prior art;

[0017] Figure 2 It is a schematic cross-sectional structure view of a cylinder head of a multi-cooling channel engine of the utility model.

[0018] 1. Cylinder head body; 2. Cooling air duct group; 3. First cooling air duct; 4. Second cooling air duct; 5. Main cooling air duct; 6. Spark plug installation hole; 7. Air duct partition plate; 8. Air duct wind blocking plate. Detailed Embodiment

[0019] To make the objectives, features, and advantages of the present invention more apparent and understandable, the following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the embodiments described below are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As Figure 2 shown, a multi-cooling-channel engine cylinder head includes a cylinder head body 1, and a cooling air duct group 2 is arranged inside the cylinder head body 1. Moreover, an air duct partition plate 7 and an air duct air blocking plate 8 for dispersing air flow are also arranged inside the cylinder head body 1.

[0021] Further, the cooling air duct group 2 includes a first cooling air duct 3, a second cooling air duct 4, and a main cooling air duct 5. The inlet of the main cooling air duct 5 is located on the windward surface of the cylinder head body 1, and the outlet of the main cooling air duct 5 is located on the leeward surface of the cylinder head body 1.

[0022] In this embodiment, by arranging the air duct partition plate 7 and the air duct air blocking plate 8, the cooling air entering the inside of the cylinder head body 1 is distributed so that it flows in the first cooling air duct 3, the second cooling air duct 4, and the main cooling air duct 5, increasing the flow range of the cooling air inside the cylinder head body 1, thereby improving the heat dissipation efficiency of the cylinder head body 1.

[0023] Further, a spark plug mounting hole 6 is also arranged inside the cylinder head body 1.

[0024] Further, the first cooling air duct 3 and the second cooling air duct 4 are respectively distributed outside the spark plug mounting hole 6.

[0025] Further, one end of the first cooling air duct 3 and one end of the second cooling air duct 4 are both communicated with the main cooling air duct 5, and the other ends of the first cooling air duct 3 and the second cooling air duct 4 are communicated.

[0026] The first cooling air duct 3 and the second cooling air duct 4 are mutually communicated to form a circulating air path with the main cooling air duct 5. Since the first cooling air duct 3 and the second cooling air duct 4 are extensions of the main cooling air duct 5 to other parts of the cylinder head body 1, the cooling air entering the inside of the cylinder head body 1 is further distributed, so that other parts of the cylinder head body 1 can be cooled together.

[0027] Further, one end of the air duct partition plate 7 is arranged inside the cylinder head body 1 near the connection of the first cooling air duct 3 and the second cooling air duct 4 with the main cooling air duct 5, and the other end extends to the spark plug mounting hole 6 for separating the first cooling air duct 3 from the second cooling air duct 4;

[0028] One of the several air duct partition plates 7 is arranged on the side of the first cooling air duct away from the spark plug mounting hole 6 for guiding the cooling air in the first cooling air duct 3.

[0029] Further, the air duct wind blocking plate 8 is arranged near the air outlet of the main cooling air duct 5.

[0030] Further, both the air duct partition plate 7 and the air duct wind blocking plate 8 are integrally arranged in the cylinder head body 1, and a return space is left between the air duct partition plate 7 and the air duct wind blocking plate 8.

[0031] The working process and principle of the present utility model are as follows: By arranging the air duct partition plate 7 and the air duct wind blocking plate 8 in the cylinder head body 1, when the external cooling air enters from the air inlet of the main cooling air duct 5, it will be shunted to the first cooling air duct 3 when flowing to the air duct partition plate 7, and the cooling air in the main cooling air duct 5 continues to flow to the air outlet. When flowing towards the air outlet of the main cooling air duct 5, affected by the air duct wind blocking plate 8, part of the cooling air in the main cooling air duct 5 flows into the second cooling air duct 4. The first cooling air duct 3 and the second cooling air duct 4 increase the circulation range of the cooling air in the cylinder head body 1, optimize the distribution of the cooling air, and effectively accelerate the reduction of the temperature of the cylinder head body 1.

[0032] The specific embodiments of the utility model have been described in detail above, but they are only examples. The present utility model is not limited to the specific embodiments described above. Those skilled in the art should understand that the above embodiments and the descriptions in the specification only illustrate the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A multi-cooling-channel engine cylinder head, characterized in that: It includes a cylinder head body (1), inside which a cooling air duct group (2) is provided, and several air duct partition plates (7) and air duct wind blocking plates (8) for dispersing air flow are also provided inside the cylinder head body (1).

2. The multi-cooling-channel engine cylinder head according to claim 1, characterized in that: The cooling air duct group (2) includes a first cooling air duct (3), a second cooling air duct (4) and a main cooling air duct (5). The inlet of the main cooling air duct (5) is located on the windward side of the cylinder head body (1), and the outlet of the main cooling air duct (5) is located on the leeward side of the cylinder head body (1).

3. The multi-cooling-channel engine cylinder head according to claim 1, wherein: A spark plug mounting hole (6) is also provided inside the cylinder head body (1).

4. The multi-cooling-channel engine cylinder head according to claim 2, characterized in that: The first cooling air duct (3) and the second cooling air duct (4) are respectively distributed outside the spark plug mounting hole (6).

5. The multi-cooling-channel engine cylinder head according to claim 2, wherein: One end of each of the first cooling air duct (3) and the second cooling air duct (4) is communicated with the main cooling air duct (5), and the other ends of the first cooling air duct (3) and the second cooling air duct (4) are communicated with each other.

6. A multi-cooling channel engine cylinder head according to claim 1, characterized in that: One of the several air duct partition plates (7) has one end disposed inside the cylinder head body (1) near the connection of the first cooling air duct (3) and the second cooling air duct (4) with the main cooling air duct (5), and the other end extends to the spark plug mounting hole (6) for separating the first cooling air duct (3) from the second cooling air duct (4).

7. A multi-cooling channel engine cylinder head according to claim 1, characterized in that: One of the several air duct partition plates (7) is disposed on the side of the first cooling air duct away from the spark plug mounting hole (6).

8. A multi-cooling channel engine cylinder head according to claim 1, characterized in that: The air duct wind blocking plate (8) is disposed near the outlet of the main cooling air duct (5).

9. The multi-cooling-channel engine cylinder head according to claim 1, characterized in that: The air duct partition plates (7) and the air duct wind blocking plates (8) are integrally provided inside the cylinder head body (1), and a return space is left between the air duct partition plates (7) and the air duct wind blocking plates (8).

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