Engine cylinder head cover

Abstract

The utility model discloses an engine cylinder head cover which comprises a cover body. The boss part is arranged on one side of the cover body, a positioning pin is arranged in the middle of the boss part, the positioning pin and the cover body are integrally formed, the boss part is further provided with a first mounting hole and a second mounting hole, the first mounting hole is formed in one side of the positioning pin, and the second mounting hole is formed in the other side of the positioning pin; and the reinforcing part is arranged on the other side of the cover body. The yield of the cylinder head cover in the production process can be increased, and the connection strength of the cylinder head cover is enhanced.

Description

Technical Field

[0001] This utility model relates to the technical field of internal combustion engine components, and in particular to an engine cylinder head cover. Background Technology

[0002] The cylinder head cap, a crucial component of an internal combustion engine, seals the cylinder head and, together with the cylinder block, forms the combustion chamber. Its design and manufacturing quality directly impact the engine's performance, reliability, and lifespan. In existing technology, locating pins are typically installed on the cylinder head cap to ensure precise assembly with other components (such as the cylinder block). These locating pins ensure accurate positioning during assembly, preventing poor sealing or other problems caused by assembly errors.

[0003] Most locating pins are installed on the cylinder head cap using an interference fit and a stamping process. However, this installation method is prone to incomplete stamping, meaning the locating pin may not be fully embedded in its intended position, increasing the risk of it falling off, especially when the engine is running under high load for extended periods or subjected to vibration. Utility Model Content

[0004] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an engine cylinder head cover that can improve the yield rate during the cylinder head cover production process and enhance the connection strength of the cylinder head.

[0005] An engine cylinder head cover according to a first aspect embodiment of the present invention includes:

[0006] Cover;

[0007] A boss portion is provided on one side of the cover body. A positioning pin is provided in the middle of the boss portion. The positioning pin is integrally formed with the cover body. The boss portion is also provided with a first mounting hole and a second mounting hole. The first mounting hole is provided on one side of the positioning pin, and the second mounting hole is provided on the other side of the positioning pin.

[0008] A reinforcing section is located on the other side of the cover.

[0009] According to the engine cylinder head cover, the positioning pin is integrally formed with the cover body, thereby eliminating the falling risk caused by traditional stamping installation, the seamless connection enhances the stability and durability of the overall structure, simplifies the production process, reduces the assembly steps and required time, and thus effectively reduces the production cost, the first mounting hole and the second mounting hole arranged at the boss portion are located at two sides of the positioning pin, thereby ensuring that accurate alignment can be achieved during assembly, the layout design improves the assembly accuracy, reduces poor sealing and other potential failures caused by installation errors, and improves the overall performance and reliability of the engine, the design of the reinforcing portion effectively enhances the structural strength of the other side of the cover body, provides additional support to cope with various stresses and deformations that may be encountered during engine operation, which not only improves the mechanical strength of the cylinder head cover, but also prolongs the service life and ensures long-term stable operation of the engine, the positioning step of the positioning pin is not required, which simplifies the mold design and manufacturing process, reduces the production steps, and reduces the dependence on professional equipment and technical personnel, which not only improves the production efficiency, but also effectively controls the production cost, and makes the product more competitive in the market.

[0010] According to some embodiments of the present application, the positioning pin and the cover body are integrally cast. The overall structure is simplified, the complexity of the manufacturing process is reduced, the assembly error and falling risk caused by traditional stamping installation are avoided, and the overall structural integrity of the cylinder head cover is enhanced.

[0011] According to some embodiments of the present application, the positioning pin is a hollow cylindrical structure. The hollow structure helps to improve heat conduction, so that the positioning pin can effectively dissipate heat generated during operation, preventing deformation or failure caused by high temperature.

[0012] According to some embodiments of the present application, the thickness of the positioning pin is A, which satisfies 1mm≤A≤1.5mm. The positioning pin has sufficient mechanical strength and rigidity, and can provide reliable support and positioning function during engine operation, and the moderate wall thickness avoids unnecessary material waste and realizes lightweight design.

[0013] According to some embodiments of the present application, the positioning pin is provided with a positioning groove, the positioning groove is arranged along the axial direction of the positioning pin, the positioning groove is arranged in the direction from the boss portion to the reinforcing portion, and the bottom of the positioning groove forms an oil sealing ring. The positioning groove can realize accurate positioning during installation, and the oil sealing ring formed at the bottom of the positioning groove effectively enhances the sealing performance. The oil sealing ring can provide a reliable sealing barrier between the positioning pin and the cooperating component, prevent lubricating oil leakage or foreign matter from entering, and thus ensure the cleanliness and stable operation of the engine internal environment.

[0014] According to some embodiments of the present utility model, the boss part is provided with an oil storage space, the oil storage space is a cavity structure with one end open, and the oil storage space is in communication connection with the positioning groove. The stable lubricating oil supply provided by the oil storage space enables the oil sealing ring to always maintain a good sealing state, effectively preventing lubricating oil leakage or foreign matter from entering the engine interior. This not only maintains the cleanliness of the engine interior environment, but also enhances the overall sealing performance, ensuring efficient operation of the engine.

[0015] According to some embodiments of the present utility model, the oil storage space is provided with an oil guide hole, one end of the oil guide hole is in communication with the oil storage space, and the other end is in communication connection with the bottom of the positioning groove. The design of the oil guide hole ensures that the lubricating oil can be accurately delivered from the oil storage space to the oil sealing ring at the bottom of the positioning groove. This precise lubrication path ensures that the key parts always receive sufficient and stable lubrication, reducing friction and wear, thereby prolonging the service life of the components and improving the reliability of the system.

[0016] According to some embodiments of the present utility model, the reinforcing part includes longitudinal reinforcing ribs and transverse reinforcing ribs, the longitudinal reinforcing ribs are arranged along the width direction of the cover body, and the transverse reinforcing ribs are arranged along the length direction of the cover body. The layout of the longitudinal and transverse reinforcing ribs significantly improves the overall rigidity and anti-deformation ability of the cover body. The longitudinal reinforcing ribs provide transverse support along the width direction, while the transverse reinforcing ribs provide longitudinal support along the length direction, and the two work together to effectively enhance the mechanical strength of the entire assembly, ensuring stable performance under high load working conditions.

[0017] According to some embodiments of the present utility model, a circular arc transition treatment is provided at the abutting place of the boss part and the cover body. This reduces the risk of local deformation or cracking, especially when subjected to vibration and impact during engine operation.

[0018] According to some embodiments of the present utility model, the positioning pin is arranged at the upper part of the boss part, and the first mounting hole and the second mounting hole are arranged at the lower part of the boss part. This can simplify the assembly process, and the worker can first perform preliminary positioning through the positioning pin, and then use the mounting hole for fixation, reducing the complexity of assembly steps and the required time, and improving production efficiency.

[0019] Additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through practice of the present utility model. BRIEF DESCRIPTION OF DRAWINGS

[0020] The present utility model will be further described below in combination with the drawings and embodiments, in which:

[0021] Fig. 1A schematic diagram of an engine cylinder head cover according to an embodiment of the present application;

[0022] Fig. 2 A schematic diagram of an engine cylinder head cover according to an embodiment of the present application;

[0023] Fig. 3 A schematic diagram of an engine cylinder head cover according to an embodiment of the present application.

[0024] The figure mark: cover 100;Boss part 110;Positioning pin 120;First mounting hole 130;Second mounting hole 140;Oil storage space 150;Oil guide hole 160;Positioning groove 170;Oil seal ring 180;Longitudinal reinforcing rib 190;Transverse reinforcing rib 200. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described in detail below, and examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0026] In the description of the present application, it should be understood that the orientation description, such as the orientation or position relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0027] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is more than two, greater than, less than, more than, etc. are understood as not including the number, and above, below, etc. are understood as including the number. If it is described as first, second, it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0028] In the description of the utility model, unless otherwise expressly limited, the words such as setting, installing, connecting should be understood broadly, and the skilled in the art can determine the specific meaning of the above words in the utility model according to the specific content of technical scheme.In the description of the utility model, the description of reference terms " one embodiment " " some embodiments " " illustrative embodiment " " example " " specific example " or " some examples " means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the description of the utility model, the illustrative expression of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.In the description of the utility model, the description of reference terms " one embodiment " " some embodiments " " illustrative embodiment " " example " " specific example " or " some examples " means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model.In the description of the utility model, the illustrative expression of the above terms does not necessarily refer to the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0029] With reference to Figs. 1 to 3 An engine cylinder head cover, comprising:

[0030] A cover body 100;

[0031] A boss portion 110 is arranged at one side of the cover body 100, and a positioning pin 120 is arranged in the middle of the boss portion 110, the positioning pin 120 is integrally formed with the cover body 100, and the boss portion 110 is further provided with a first mounting hole 130 and a second mounting hole 140, the first mounting hole 130 is arranged at one side of the positioning pin 120, and the second mounting hole 140 is arranged at the other side of the positioning pin 120;

[0032] A reinforcing portion is arranged at the other side of the cover body 100.

[0033] By integrating the positioning pin 120 with the cover 100, the risk of falling caused by traditional stamping installation is eliminated. This seamless connection not only enhances the stability and durability of the overall structure, but also simplifies the production process, reduces assembly steps and required time, thereby effectively reducing production costs; The first mounting hole 130 and the second mounting hole 140 provided on the boss part 110 are respectively located on both sides of the positioning pin 120, which ensures accurate alignment during assembly. This layout design improves assembly accuracy, reduces poor sealing and other potential failures caused by installation errors, and improves the overall performance and reliability of the engine; The design of the reinforcing part effectively enhances the structural strength of the other side of the cover 100, providing additional support to cope with various stresses and deformations that may be encountered during engine operation. This not only improves the mechanical strength of the cylinder head cover, but also prolongs its service life, ensuring stable operation of the engine for a long time; Without the positioning step of the positioning pin 120, the mold design and manufacturing process is simplified, and the production steps are reduced, reducing the dependence on professional equipment and technical personnel. This not only improves production efficiency, but also effectively controls production costs, making the product more market competitive.

[0034] The positioning pin 120 is integrally cast with the cover 100. Simplify the overall structure, reduce the complexity of the manufacturing process, avoid assembly errors and falling risks caused by traditional stamping installation, and enhance the overall structural integrity of the cylinder head cover.

[0035] The positioning pin 120 is a hollow cylindrical structure. The hollow structure helps to improve heat conduction, allowing the positioning pin 120 to dissipate heat generated during operation more effectively, preventing deformation or failure due to high temperature.

[0036] The thickness of the positioning pin 120 is A, which satisfies 1mm≤A≤1.5mm. Ensure that the positioning pin 120 has sufficient mechanical strength and rigidity to provide reliable support and positioning function during engine operation, and the moderate wall thickness avoids unnecessary material waste and realizes lightweight design.

[0037] The positioning pin 120 is provided with a positioning groove 170, the positioning groove 170 is arranged along the axial direction of the positioning pin 120, the positioning groove 170 is arranged from the direction of the boss part 110 to the direction of the reinforcing part, and the bottom of the positioning groove 170 forms an oil sealing ring 180. The positioning groove 170 can realize accurate positioning during installation, and the oil sealing ring 180 formed at the bottom of the positioning groove 170 effectively enhances the sealing performance. The oil sealing ring 180 can provide a reliable sealing barrier between the positioning pin 120 and the cooperating part, preventing lubricating oil leakage or foreign matter from entering, thereby ensuring the cleanliness and stable operation of the engine internal environment.

[0038] The boss part 110 is provided with an oil storage space 150, which is a cavity structure with one end open, and the oil storage space 150 is in communication with the positioning groove 170. The stable lubricating oil supply provided by the oil storage space 150 enables the oil seal ring 180 to always maintain a good sealing state, effectively preventing lubricating oil leakage or foreign matter from entering the engine interior. This not only maintains the cleanliness of the engine interior environment, but also enhances the overall sealing performance, ensuring the efficient operation of the engine.

[0039] The oil storage space 150 is provided with an oil guide hole 160, which is in communication with the oil storage space 150 at one end and the bottom of the positioning groove 170 at the other end. The design of the oil guide hole 160 ensures that the lubricating oil can be accurately delivered from the oil storage space 150 to the oil seal ring 180 at the bottom of the positioning groove 170. This precise lubrication path ensures that critical parts are always adequately and stably lubricated, reducing friction and wear, thereby extending the service life of the components and improving the reliability of the system. It can be understood that the oil guide hole 160 is obliquely arranged in the boss part 110 to facilitate the flow of lubricating oil from the oil storage space 150 to the oil seal ring 180.

[0040] The reinforcing part includes longitudinal reinforcing ribs 190 and transverse reinforcing ribs 200, which are arranged along the width direction of the cover body 100 and along the length direction of the cover body 100. The layout of the longitudinal and transverse reinforcing ribs significantly improves the overall rigidity and anti-deformation ability of the cover body 100. The longitudinal reinforcing ribs 190 provide transverse support along the width direction, while the transverse reinforcing ribs 200 provide longitudinal support along the length direction, which together effectively enhances the mechanical strength of the entire assembly, ensuring stable performance under high load working conditions.

[0041] The abutment between the boss part 110 and the cover body 100 is provided with a circular arc transition treatment. This reduces the risk of local deformation or cracking, especially when subjected to vibration and impact during engine operation.

[0042] The positioning pin 120 is arranged at the upper part of the boss part 110, and the first mounting hole 130 and the second mounting hole 140 are arranged at the lower part of the boss part 110. This can simplify the assembly process, and workers can first perform preliminary positioning through the positioning pin 120, and then use the mounting holes for fixation, reducing the complexity of assembly steps and the required time, and improving production efficiency.

[0043] In this embodiment, the cover body 100 is made of high-strength aluminum alloy material as the basic structure of the entire assembly, ensuring lightweight and good heat conduction performance. The boss part 110 is provided on one side of the cover body 100, and a positioning pin 120 is provided in the middle, which is integrally cast with the cover body 100, ensuring seamless connection and high mechanical strength. In addition, the boss part 110 is also provided with a first mounting hole 130 and a second mounting hole 140, which are respectively located on both sides of the positioning pin 120 to ensure accurate assembly alignment. The reinforcing part is provided on the other side of the cover body 100, including longitudinal reinforcing ribs 190 and transverse reinforcing ribs 200, the longitudinal reinforcing ribs 190 are arranged along the width direction of the cover body 100, and the transverse reinforcing ribs 200 are arranged along the length direction of the cover body 100, forming a crisscross reinforcing rib layout, enhancing the rigidity and anti-deformation ability of the overall structure.

[0044] The positioning pin 120 is a hollow cylindrical structure with a wall thickness A satisfying 1mm ≤ A ≤ 1.5mm. This design not only reduces weight and optimizes material use, but also enhances heat dissipation performance while maintaining sufficient mechanical strength. In addition, the positioning pin 120 is provided with a positioning groove 170 extending along its axial direction, which extends from the boss part 110 side to the reinforcing part direction, and the bottom of the positioning groove 170 forms an oil sealing ring 180. This design effectively improves the sealing performance and ensures the continuous lubrication of the key parts.

[0045] The boss part 110 is provided with a one-end-open cavity type oil storage space 150, which is in communication with the positioning groove 170. In order to further optimize the lubricating oil delivery path, an oil guide hole 160 is provided in the oil storage space 150, one end of which is in communication with the inside of the oil storage space 150, and the other end is in communication with the bottom of the positioning groove 170. This design ensures that the lubricating oil can be accurately delivered from the oil storage space 150 to the oil sealing ring 180 at the bottom of the positioning groove 170, achieving sufficient lubrication of the key parts, reducing friction and wear, and prolonging the service life of the parts.

[0046] The abutment between the boss part 110 and the cover body 100 is treated with a circular arc transition. This design effectively reduces stress concentration, improves structural strength and durability, and also improves thermal stability and fatigue resistance. In addition, the circular arc transition makes the entire assembly look smoother and more streamlined, improving the appearance and process quality of the product.

[0047] The positioning pin 120 is arranged at the upper part of the boss part 110, and the first mounting hole 130 and the second mounting hole 140 are arranged at the lower part of the boss part 110. The upper and lower layered layout design not only simplifies the assembly process, improves the assembly accuracy, but also enhances the structural stability and maintenance convenience. The operator can preliminarily align through the positioning pin 120 first, and then fix by using the mounting hole, so as to reduce the complexity and required time of assembly steps, and improve the production efficiency.

[0048] The utility model has been described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model.

Claims

1. An engine cylinder head cover characterized by, The utility model relates to a cover body, a boss part, a reinforcing part and a positioning pin, and relates to the technical field of mechanical parts. The utility model discloses a cover body, a boss part, a reinforcing part and a positioning pin, and relates to the technical field of mechanical parts. The positioning pin is integrally formed with the cover body. The positioning pin is hollow and in a cylindrical shape.

2. An engine cylinder head cover according to claim 1, characterized in that The thickness of the positioning pin is A, and 1mm <= A <= 1.5mm.

3. An engine cylinder head cover according to claim 1 or 2, characterised in that The oil storage space is provided with an oil guide hole, one end of which is in communication with the oil storage space, and the other end is in communication with the bottom of the positioning groove.

4. An engine cylinder head cover according to claim 1 or 2, characterised in that The abutting place of the boss part and the cover body is provided with a circular arc transition treatment.

5. An engine cylinder head cover according to claim 1, wherein The positioning pin is arranged on the upper part of the boss part, and the first mounting hole and the second mounting hole are arranged on the lower part of the boss part.

6. An engine cylinder head cover according to claim 1, wherein The positioning pin is hollow and in a cylindrical shape.

7. An engine cylinder head cover according to claim 1, wherein The thickness of the positioning pin is A, and 1mm <= A <= 1.5mm. The oil storage space is provided with an oil guide hole, one end of which is in communication with the oil storage space, and the other end is in communication with the bottom of the positioning groove. The abutting place of the boss part and the cover body is provided with a circular arc transition treatment. The positioning pin is arranged on the upper part of the boss part, and the first mounting hole and the second mounting hole are arranged on the lower part of the boss part.

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