Sealing cylinder head cover for motorcycle

Abstract

The utility model belongs to the technical field of cylinder heads, and particularly relates to a sealing cylinder head cover for a motorcycle. The air cylinder cover gasket is arranged between the air cylinder body and the air cylinder cover body and used for filling a gap between the air cylinder cover body and the air cylinder body; wherein an air cylinder cavity is formed in the air cylinder cover body, and adjacent cylinder openings are formed in the air cylinder cover gasket. The cylinder cover gasket has the beneficial effects that the cylinder cover gasket is arranged between the cylinder body and the cylinder cover body, so that a small gap between the cylinder body and the cylinder cover body can be filled, close fit between the cylinder cover and the cylinder body is ensured, gas leakage in a combustion chamber is prevented, external moisture and impurities can be effectively prevented from entering the cylinder, and the service life of the cylinder cover is prolonged. Therefore, the sealing performance and the waterproof performance of the cylinder cover are improved, it can be ensured that the interior of the cylinder cover is always kept in a dry state, and faults and damage caused by water invasion are avoided.

Description

Technical Field

[0001] The present application belongs to the technical field of cylinder heads, and in particular relates to a sealed cylinder head cover for motorcycles. Background Art

[0002] The cylinder head cover is a sealing member of the engine cylinder head, and is used to isolate the top of the cylinder head from the outside. In the prior art, the cylinder head of a motorcycle engine is usually exposed to the outside.

[0003] The patent with publication number CN213205846U discloses a motorcycle engine cylinder head structure, including a main body, a cylinder cavity reserved in the main body, a shell provided on the outer cover of the main body, the bottom of the shell being tightly connected to the main body, an air-cooling cavity layer reserved between the shell and the main body, a plurality of heat dissipation ring sheets provided on the outer cover of the shell, a plurality of air outlet holes opened between two adjacent layers of heat dissipation ring sheets, an air inlet opened on the upper part of the shell, the air inlet being connected to the air-cooling cavity layer, and the air-cooling cavity layer being connected to the plurality of air outlet holes.

[0004] The above patent solves the problem of poor heat dissipation on both sides and back of the cylinder head during movement by dissipating heat from various parts of the cylinder head surface. However, in actual use, since the cylinder is exposed to the outside, good sealing is required for waterproof protection. However, the above cylinder head does not have a corresponding structure and needs to be improved. Utility Model Content

[0005] The purpose of this application is to provide a sealed cylinder head cover for a motorcycle, which can solve the above problems.

[0006] The purpose of this application is to provide a sealed cylinder head cover for a motorcycle, comprising:

[0007] Cylinder head body;

[0008] The cylinder head gasket is provided between the cylinder block and the cylinder head body to fill the gap between the cylinder head body and the cylinder block;

[0009] The cylinder head body is provided with a cylinder cavity, and the cylinder head gasket is provided with adjacent cylinder ports.

[0010] In the aforementioned sealed cylinder head cover for motorcycles, the cylinder head body serves as the main portion of the cover, covering and protecting the upper portion of the cylinder block and, together with the cylinder block, forming the combustion chamber. A cylinder head gasket, positioned between the cylinder block and the cylinder head body, fills the tiny gap between them, ensuring a tight fit between the cylinder head and the cylinder block. This not only helps prevent gas leakage within the combustion chamber but also effectively prevents external moisture and impurities from entering the cylinder, thereby improving the cylinder head's sealing and waterproofing properties. This ensures that the interior of the cylinder head remains dry, thus avoiding malfunctions and damage caused by moisture intrusion.

[0011] Furthermore, the cylinder head gasket includes:

[0012] Functional layer, used to realize the sealing function of the cylinder head gasket;

[0013] The distance layer is set in the middle of the cylinder head gasket to adjust the thickness of the cylinder head gasket;

[0014] The limiting layer is set at the cylinder port to adjust the surface pressure distribution of the cylinder head gasket;

[0015] There are two functional layers, and the two functional layers are spaced apart.

[0016] The functional layer is mainly responsible for realizing the sealing function of the gasket. The functional layer is distributed with full-corrugated and semi-corrugated rib structures. These rib structures can undergo elastic deformation when subjected to pressure, thereby filling the tiny gap between the cylinder head body and the cylinder block, ensuring a tight fit between the two. In this application, the functional layer is provided with two layers, and the two functional layers are spaced apart, which can further enhance the sealing performance of the gasket while improving the durability and fatigue resistance of the gasket. The distance layer is located in the middle part of the cylinder head gasket, and its main function is to adjust the overall thickness of the gasket. By adjusting the thickness of the distance layer, the fitting clearance between the cylinder head gasket and the cylinder head body and cylinder block can be easily adjusted to meet the needs of different vehicle models and engines. The limiting layer is provided at the cylinder mouth, and its main function is to adjust the surface pressure distribution of the cylinder head gasket. The limiting layer is an annular structure with a certain hardness and rigidity, which can limit the deformation of the gasket at the cylinder port, thereby ensuring that the gasket has a uniform surface pressure distribution at the cylinder port. Through the design of the limiting layer, the sealing performance of the cylinder head gasket can be further optimized to prevent poor sealing caused by gasket deformation.

[0017] Furthermore: it also includes an anti-deformation module, which is arranged at the front and rear ends of the cylinder head gasket to offset and alleviate the deformation of the cylinder block and the cylinder head body during operation.

[0018] Anti-deformation modules are located at the front and rear ends of the gasket to offset and mitigate deformation of the cylinder block and cylinder head due to heat, pressure, and other factors during operation, thereby ensuring the long-term stability of the cylinder head gasket's sealing performance. These locations, where deformation of the cylinder block and cylinder head is most pronounced, maximize their effectiveness in offsetting and mitigating deformation. Furthermore, by offsetting and mitigating deformation, the modules help reduce wear and aging of the cylinder head gasket, thereby extending its service life.

[0019] Furthermore, the functional layer is provided with a full-corrugated rib structure and a half-corrugated rib structure.

[0020] The fully corrugated rib structure features ribs that exhibit a complete, wave-like shape, providing greater elastic deformation under pressure. This deformation capacity helps fill the tiny gap between the cylinder head and cylinder block, ensuring a tight fit. Furthermore, the fully corrugated rib structure improves the gasket's durability and fatigue resistance, ensuring a stable seal over long-term use.

[0021] Compared to full-corrugated ribs, the semi-corrugated rib structure features a partial wave pattern on the functional layer of the cylinder head gasket. This provides additional sealing support in specific areas, such as critical locations like water and oil holes. The semi-corrugated rib structure ensures a tight seal, preventing the leakage of gas, liquid, or impurities. Furthermore, the semi-corrugated rib structure can reduce the overall weight of the gasket, lower material costs, and improve processing efficiency.

[0022] Combining the full-corrugated rib structure and the semi-corrugated rib structure can give full play to their respective advantages and achieve efficient sealing of the cylinder head gasket. The full-corrugated rib structure provides extensive sealing support, ensuring a tight fit between the cylinder head body and the cylinder block; while the semi-corrugated rib structure provides additional sealing guarantees at key positions such as water holes and oil holes. This comprehensive design not only improves the sealing performance of the gasket, but also enhances its durability and fatigue resistance, enabling it to adapt to various harsh working environments.

[0023] Furthermore, the sides of the cylinder block and the cylinder head body of the full-corrugated rib structure and the semi-corrugated rib structure that are in contact with each other are coated with a resin coating.

[0024] The resin coating is applied to the side of the full-corrugated rib structure and the semi-corrugated rib structure that contacts the cylinder block and cylinder head body. It has excellent adhesion and sealing properties, and can fit tightly to the surface of the cylinder block and cylinder head body, filling tiny gaps, thereby further improving the sealing effect of the gasket. The resin coating is also wear-resistant and corrosion-resistant, protecting the rib structure from damage in harsh operating environments and extending the service life of the gasket. The resin coating can be evenly applied to the surface of the rib structure by spraying, brushing, or dipping. After coating, the coating needs to be cured to ensure that it can firmly adhere to the rib structure and develop the desired properties.

[0025] The beneficial effects of this application are:

[0026] 1. By installing a cylinder head gasket between the cylinder block and the cylinder head body, the tiny gap between the two can be filled, thereby ensuring a tight fit between the cylinder head and the cylinder block. This not only helps prevent gas leakage in the combustion chamber, but also effectively prevents external moisture and impurities from entering the cylinder, thereby improving the sealing and waterproof performance of the cylinder head, ensuring that the interior of the cylinder head is always dry, thus avoiding malfunctions and damage caused by moisture intrusion;

[0027] 2. Anti-deformation modules are installed at the front and rear ends of the gasket to offset and alleviate deformation of the cylinder block and cylinder head caused by heat, pressure and other factors during operation, thereby ensuring that the cylinder head gasket can maintain stable sealing performance over the long term;

[0028] 3. Combining the full-corrugated rib structure and the semi-corrugated rib structure can give full play to their respective advantages and achieve efficient sealing of the cylinder head gasket. The full-corrugated rib structure provides extensive sealing support, ensuring a tight fit between the cylinder head body and the cylinder block; while the semi-corrugated rib structure provides additional sealing protection at key positions such as water holes and oil holes. This comprehensive design not only improves the sealing performance of the gasket, but also enhances its durability and fatigue resistance, enabling it to adapt to various harsh working environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural diagram of the utility model;

[0030] Figure 2 This is a structural diagram of the cylinder head gasket of the utility model;

[0031] Figure 3 This is a front view of the cylinder head gasket of the utility model;

[0032] Figure 4 yes Figure 2 Cross-sectional view in the AA direction;

[0033] Figure 5 yes Figure 2 Cross-sectional view in the BB direction.

[0034] The reference numerals in the figure are: 100, cylinder head body; 200, cylinder head gasket; 210, cylinder port; 220, functional layer; 221, full-corrugated rib structure; 222, semi-corrugated rib structure; 230, distance layer; 240, limiting layer; 250, anti-deformation module. DETAILED DESCRIPTION

[0035] The following will be combined with the accompanying drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the embodiments described are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0036] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0037] The sealed cylinder head cover for a motorcycle provided by the embodiment of the present application is described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0038] Example 1:

[0039] like Figures 1 to 3 As shown, an embodiment of the present application provides a sealed cylinder head cover for a motorcycle, comprising:

[0040] Cylinder head body 100;

[0041] The cylinder head gasket 200 is provided between the cylinder block and the cylinder head body 100 to fill the gap between the cylinder head body 100 and the cylinder block;

[0042] The cylinder head body 100 is provided with a cylinder cavity, and the cylinder head gasket 200 is provided with adjacent cylinder ports 210 .

[0043] In some implementations of the embodiments of this application, Figure 1As shown, a sealed cylinder head cover for a motorcycle is used. The cylinder head body 100 serves as the main portion of the cover, covering and protecting the upper portion of the cylinder block and, together with the cylinder block, forming a combustion chamber. A cylinder head gasket 200 is disposed between the cylinder block and the cylinder head body 100. Its primary function is to fill the tiny gap between the two, thereby ensuring a tight fit between the cylinder head and the cylinder block. This not only helps prevent gas leakage within the combustion chamber but also effectively prevents external moisture and impurities from entering the cylinder, thereby improving the cylinder head's sealing and waterproofing properties. This ensures that the interior of the cylinder head remains dry, thus preventing malfunctions and damage caused by moisture intrusion.

[0044] Example 2:

[0045] An embodiment of the present application provides a sealed cylinder head cover for a motorcycle. In addition to the above-mentioned technical features, the sealed cylinder head cover for a motorcycle in the embodiment of the present application also includes the following technical features.

[0046] like Figures 2 to 5 As shown, the cylinder head gasket 200 includes:

[0047] Functional layer 220, used to achieve the sealing function of cylinder head gasket 200;

[0048] a distance layer 230 , disposed in the middle of the cylinder head gasket 200 , for adjusting the thickness of the cylinder head gasket 200 ;

[0049] The limiting layer 240 is provided at the cylinder port 210 and is used to adjust the surface pressure distribution of the cylinder head gasket 200;

[0050] There are two functional layers 220 , and the two functional layers 220 are spaced apart.

[0051] In the embodiment of the present application, the functional layer 220 is primarily responsible for achieving the gasket's sealing function. Full- and semi-corrugated rib structures 222 are distributed across the functional layer 220. These ribs elastically deform when subjected to pressure, thereby filling the tiny gap between the cylinder head body 100 and the cylinder block, ensuring a tight fit between the two. In this application, the functional layer 220 comprises two layers, each spaced apart, which further enhances the gasket's sealing performance while also improving its durability and fatigue resistance. The distance layer 230 is located in the middle of the cylinder head gasket 200 and primarily functions to adjust the overall thickness of the gasket. By adjusting the thickness of the distance layer 230, the clearance between the cylinder head gasket 200, the cylinder head body 100, and the cylinder block can be easily adjusted to meet the requirements of different vehicle models and engines. The limiting layer 240 is located at the cylinder port 210 and primarily functions to adjust the surface pressure distribution of the cylinder head gasket 200. The limiting layer 240 is an annular structure with a certain hardness and rigidity, which can limit the deformation degree of the gasket at the cylinder port 210, thereby ensuring that the gasket has a uniform surface pressure distribution at the cylinder port 210. Through the design of the limiting layer 240, the sealing performance of the cylinder head gasket 200 can be further optimized to prevent the problem of poor sealing caused by gasket deformation.

[0052] Example 3:

[0053] An embodiment of the present application provides a sealed cylinder head cover for a motorcycle. In addition to the above-mentioned technical features, the sealed cylinder head cover for a motorcycle in the embodiment of the present application also includes the following technical features.

[0054] like Figures 2 to 5 As shown, the anti-deformation module 250 is also included, which is provided at the front and rear ends of the cylinder head gasket 200 to offset and alleviate the deformation of the cylinder block and the cylinder head body 100 during operation.

[0055] In this embodiment of the present application, the anti-deformation modules 250 are located at the front and rear ends of the gasket to offset and mitigate deformation of the cylinder block and cylinder head body 100 caused by factors such as heat and pressure during operation, thereby ensuring that the cylinder head gasket 200 can maintain stable sealing performance over the long term. These locations are typically where the cylinder block and cylinder head body 100 experience the most significant deformation during operation. By placing the anti-deformation modules 250 at these locations, their ability to offset and mitigate deformation is maximized. Furthermore, by offsetting and mitigating deformation, the anti-deformation modules 250 help reduce wear and aging of the cylinder head gasket 200, thereby extending its service life.

[0056] Example 4:

[0057] An embodiment of the present application provides a sealed cylinder head cover for a motorcycle. In addition to the above-mentioned technical features, the sealed cylinder head cover for a motorcycle in the embodiment of the present application also includes the following technical features.

[0058] like Figures 2 to 5 As shown, the functional layer 220 is provided with a full-corrugated rib structure 221 and a half-corrugated rib structure 222 .

[0059] In this embodiment of the present application, the ribs of the full-corrugated rib structure 221 exhibit a complete corrugated shape, thereby providing greater elastic deformation capability when subjected to pressure. This deformation capability helps fill the tiny gap between the cylinder head body 100 and the cylinder block, ensuring a tight fit between the two. Furthermore, the full-corrugated rib structure 221 improves the durability and fatigue resistance of the gasket, ensuring a stable sealing effect during long-term use.

[0060] Compared to the full-corrugated rib structure 221, the semi-corrugated rib structure exhibits a partial corrugation pattern on the functional layer 220 of the cylinder head gasket 200. This provides additional sealing support in specific areas. For example, in key locations such as water and oil holes, the semi-corrugated rib structure ensures the tightness of these holes, preventing the leakage of gas, liquid, or impurities. Furthermore, the semi-corrugated rib structure can reduce the overall weight of the gasket, lower material costs, and improve gasket processing efficiency.

[0061] Combining the full-corrugated rib structure 221 and the semi-corrugated rib structure can give full play to their respective advantages and achieve efficient sealing of the cylinder head gasket 200. The full-corrugated rib structure 221 provides extensive sealing support to ensure a tight fit between the cylinder head body 100 and the cylinder block; while the semi-corrugated rib structure provides additional sealing guarantees at key positions such as water holes and oil holes. This comprehensive design not only improves the sealing performance of the gasket, but also enhances its durability and fatigue resistance, enabling it to adapt to various harsh working environments.

[0062] Furthermore, the sides of the full-corrugated rib structure 221 and the semi-corrugated rib structure 222 that contact the cylinder block and the cylinder head body 100 are coated with a resin coating.

[0063] In some embodiments of the present application, a resin coating is applied to the side of the full-corrugated rib structure 221 and the semi-corrugated rib structure that contacts the cylinder block and cylinder head body 100. The resin coating has excellent adhesion and sealing properties, allowing it to fit tightly against the surfaces of the cylinder block and cylinder head body 100, filling tiny gaps and further improving the gasket's sealing effect. Furthermore, the resin coating is wear-resistant and corrosion-resistant, protecting the rib structure from damage in harsh operating environments and extending the gasket's service life. The resin coating can be evenly applied to the surface of the rib structure by spraying, brushing, or dipping. After coating, the coating needs to be cured to ensure it firmly adheres to the rib structure and achieves the desired properties.

[0064] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0065] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. A sealed cylinder head cover for a motorcycle, characterized by: include: Cylinder head body (100); A cylinder head gasket (200) is provided between the cylinder block and the cylinder head body (100) and is used to fill the gap between the cylinder head body (100) and the cylinder block; A cylinder cavity is provided in the cylinder head body (100), and an adjacent cylinder port (210) is provided on the cylinder head gasket (200).

2. The sealed cylinder head cover for a motorcycle according to claim 1, characterized in that: The cylinder head gasket (200) comprises: A functional layer (220) for achieving a sealing function of the cylinder head gasket (200); a distance layer (230) disposed in the middle of the cylinder head gasket (200) for adjusting the thickness of the cylinder head gasket (200); A limiting layer (240) is provided on the cylinder port (210) and is used to adjust the surface pressure distribution of the cylinder head gasket (200); The functional layer (220) is provided with two layers, and the two functional layers (220) are arranged at intervals.

3. The sealed cylinder head cover for a motorcycle according to claim 2, characterized in that: It also includes anti-deformation modules (250) arranged at the front and rear ends of the cylinder head gasket (200) to offset and alleviate the deformation of the cylinder block and the cylinder head body (100) during operation.

4. The sealed cylinder head cover for a motorcycle according to claim 2, characterized in that: The functional layer (220) is provided with a full-corrugated rib structure (221) and a half-corrugated rib structure (222).

5. The sealed cylinder head cover for a motorcycle according to claim 4, characterized in that: The sides of the full-corrugated rib structure (221) and the semi-corrugated rib structure (222) that are in contact with the cylinder block and the cylinder head body (100) are both coated with a resin coating.

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