Engine cylinder cover, engine and vehicle

Abstract

The utility model provides an engine cylinder cover, an engine and a vehicle, the engine cylinder cover comprises: a cylinder cover main body, a cylinder cover water jacket formed on the cylinder cover main body; the reinforcing ribs are arranged on the cylinder cover main body, extend from a bottom plate of the cylinder cover main body to one side of the interior of the cylinder cover main body in the longitudinal direction, and are located between an air inlet side water jacket and an air outlet side water jacket of the cylinder cover water jacket. Therefore, the reinforcing ribs extending in the longitudinal direction are arranged on the cylinder cover body, the longitudinal deformation resistance of the engine cylinder cover is improved through the reinforcing ribs, the longitudinal deformation quantity generated after the cylinder cover body is heated can be effectively restrained, and therefore the situation that the high-thermal-efficiency engine cylinder cover cracks after mechanical loads and thermal loads borne by the high-thermal-efficiency engine cylinder cover are increased is effectively prevented; and the operation reliability and stability of the engine are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle engines, in particular to an engine cylinder cover, an engine and a vehicle. Background Art

[0002] Currently, as engine thermal efficiency improves during operation, the efficiency of converting thermal energy into mechanical energy also increases. To improve this efficiency, the combustion process needs to be closer to an isochoric heating process, which requires compressing the combustion duration. Ideally, this compression of the combustion duration is achieved when the piston reaches top dead center. This adjustment trend will lead to increasingly higher maximum explosion pressures within the engine cylinder.

[0003] In related technologies, faster combustion speeds in engines lead to more intense combustion gas movement, which in turn increases the speed of the combustion gas relative to the combustion chamber walls. This increases the heat transfer coefficient of the combustion chamber walls, leading to increased temperatures and thermal stress. This also increases the risk of cylinder head cracking as mechanical loads (due to explosion pressure) and thermal loads (due to temperature) increase. Utility Model Content

[0004] In view of this, the present invention aims to provide an engine cylinder head to improve the structural strength of the engine cylinder head.

[0005] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0006] An engine cylinder head comprises: a cylinder head body, the cylinder head body forming a cylinder head water jacket; a reinforcing rib, the reinforcing rib being arranged on the cylinder head body and extending from a bottom plate of the cylinder head body along a longitudinal direction toward an inner side of the cylinder head body, and the reinforcing rib being located between an intake side water jacket and an exhaust side water jacket of the cylinder head water jacket.

[0007] According to some embodiments of the present invention, the cylinder head water jacket further includes a cooling water jacket, which is provided on the cylinder head body and communicates between the intake side water jacket and the exhaust side water jacket.

[0008] According to some embodiments of the present invention, the cylinder head body is provided with a plurality of exhaust portions on the exhaust side, each exhaust portion comprises two exhaust passages arranged at intervals, and the cooling water jacket is located between the two exhaust passages.

[0009] According to some embodiments of the present invention, the exhaust duct is arranged in the longitudinal direction, the cooling water jacket is arranged in the transverse direction, and the extension direction of the exhaust duct is perpendicular to the extension direction of the cooling water jacket.

[0010] According to some embodiments of the present invention, there are multiple cooling water jackets, and at least one section of the cooling water jacket is provided between the two exhaust ducts of each exhaust group.

[0011] According to some embodiments of the present invention, there are multiple reinforcing ribs, each of which is arranged between two adjacent exhaust portions, and an extending direction of the reinforcing rib is the same as an extending direction of part of the exhaust duct.

[0012] According to some embodiments of the present invention, the aperture size of the cross section of the cooling water jacket in the extension direction is L, and satisfies the relationship: 3mm≤L≤9mm.

[0013] According to some embodiments of the present invention, the cylinder head body and the reinforcing rib are integrally provided.

[0014] Compared with the prior art, the engine cylinder head of the present invention has at least the following advantages:

[0015] (1) The cylinder head body is provided with longitudinally extending reinforcing ribs, which can enhance the longitudinal deformation resistance of the engine cylinder head and effectively suppress the longitudinal deformation of the cylinder head body after being heated, thereby effectively preventing the high thermal efficiency engine cylinder head from cracking due to increased mechanical and thermal loads, thereby improving the operating reliability and stability of the engine.

[0016] (2) A cooling water jacket is provided in the nose bridge area on the exhaust side of the cylinder head body (an area with a higher heat load than other areas of the cylinder head body). The cooling water jacket can connect the exhaust side water jacket and the intake side water jacket, and can improve the cooling effect of the cylinder head body in the nose bridge area on the exhaust side, so that the ability of the engine cylinder head to withstand the heat load meets its material limit, thereby improving the reliability and stability of the engine cylinder head during engine operation.

[0017] Another object of the present invention is to provide an engine.

[0018] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0019] An engine comprises the above-mentioned engine cylinder head.

[0020] The advantages of the engine and the above-mentioned engine cylinder head over the prior art are the same and will not be repeated here.

[0021] Another object of the present invention is to provide a vehicle.

[0022] In order to achieve the above-mentioned purpose, the technical solution of the utility model is achieved as follows:

[0023] A vehicle comprises the above-mentioned engine.

[0024] The advantages of the vehicle and the above-mentioned engine over the prior art are the same and will not be repeated here.

[0025] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings, which constitute part of the present invention, are intended to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are intended to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0027] Figure 1 A partial cross-sectional view of an engine cylinder head according to an embodiment of the present invention Figure 1 ;

[0028] Figure 2 A partial cross-sectional view of an engine cylinder head according to an embodiment of the present invention Figure 2 ;

[0029] Figure 3 A partial cross-sectional view of an engine cylinder head according to an embodiment of the present invention Figure 3 .

[0030] Description of reference numerals:

[0031] Engine cylinder head 100;

[0032] Cylinder head body 1; cooling water jacket 101; intake side water jacket 102; exhaust part 103; exhaust duct 1031; exhaust port section 1032;

[0033] Reinforcement rib 2. DETAILED DESCRIPTION

[0034] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0035] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0036] Combine Figure 1-Figure 3 An engine cylinder head 100 according to an embodiment of the present invention is described. The engine cylinder head 100 includes a cylinder head body 1 and a reinforcement rib 2 .

[0037] The cylinder head body 1 is formed with a cylinder head water jacket, which is used to allow a heat exchange medium to pass through, thereby removing heat from the engine through the heat exchange medium, thereby achieving heat dissipation and cooling of the engine. It should be noted that the heat exchange medium can be a coolant (such as water), and the type of heat exchange medium is not specifically limited here.

[0038] Reference Figure 1 As shown, the reinforcing rib 2 is arranged on the cylinder head body 1, and the reinforcing rib 2 extends from the bottom plate of the cylinder head body 1 (that is, the side of the cylinder head body 1 adjacent to the engine cylinder block) along the longitudinal direction toward the inner side of the cylinder head body 1, and the reinforcing rib 2 is located between the intake side water jacket 102 and the exhaust side water jacket of the cylinder head water jacket.

[0039] It should be noted that the engine cylinder head 100 is used to cooperate with the engine block. The engine cylinder head 100 is located on top of the engine block and serves to seal the cylinder to form a combustion chamber. The engine cylinder head 100 works together with the piston to realize the engine's intake and exhaust processes. The "bottom plate of the cylinder head body 1" refers to the end of the cylinder head body 1 adjacent to the engine block; the "interior of the cylinder head body 1" refers to the area of ​​the cylinder head body 1 forming the water jacket, which is also the side of the cylinder head body 1 away from the engine block from the bottom plate; and the "longitudinal direction" refers to the alignment of the engine cylinder head 100 with the engine block.

[0040] Reference Figure 1 and Figure 3 As shown, the reinforcement rib 2 is along the longitudinal direction (also Figure 3 The ribs 2 extend in the vertical direction, thereby improving the deformation resistance of the cylinder head body 1 in the longitudinal direction, thereby improving the structural strength of the engine cylinder head 100, avoiding problems such as cracking of the engine cylinder head 100 due to insufficient local strength, and improving the operating safety and stability of the engine.

[0041] Currently, as engine thermal efficiency improves during operation, the efficiency of converting thermal energy into mechanical energy also increases. To improve this efficiency, the combustion process needs to be closer to an isochoric heating process, which requires compressing the combustion duration. Ideally, this compression of the combustion duration is achieved when the piston reaches top dead center. This adjustment trend will lead to increasingly higher maximum explosion pressures within the engine cylinder.

[0042] In related technologies, faster combustion speeds in engines lead to more intense combustion gas movement, which in turn increases the speed of the combustion gas relative to the combustion chamber walls. This increases the heat transfer coefficient of the combustion chamber walls, leading to increased temperatures and thermal stress. This also increases the risk of cylinder head cracking as mechanical loads (due to explosion pressure) and thermal loads (due to temperature) increase.

[0043] In the engine cylinder head 100 of the present invention, a longitudinally extending reinforcing rib 2 is provided on the cylinder head main body 1 to enhance the longitudinal deformation resistance of the engine cylinder head 100 through the reinforcing rib 2. The longitudinal deformation amount generated by the cylinder head main body 1 after being heated can be effectively suppressed, thereby effectively preventing the high thermal efficiency engine cylinder head 100 from cracking after being subjected to increased mechanical and thermal loads, thereby improving the operating reliability and stability of the engine.

[0044] like Figure 1 As shown, in some embodiments of the present invention, the cylinder head body 1 is provided with a cooling water jacket 101, which is used to connect the intake side water jacket 102 and the exhaust side water jacket (not shown in the figure), so as to connect the intake side water jacket 102 with the exhaust side water jacket through the cooling water jacket 101, thereby meeting the circulation requirements of the heat exchange medium in the cylinder head water jacket.

[0045] It should be noted that a reinforcing rib 2 is provided in the cylinder head body 1, and the reinforcing rib 2 is arranged in the cylinder head water jacket, and the reinforcing rib 2 is located between the intake side water jacket 102 and the exhaust side water jacket, so that the reinforcing rib 2 can disconnect the connection between the intake side and exhaust side water jackets.

[0046] Therefore, the cylinder head body 1 of the present invention connects the intake side water jacket 102 and the exhaust side water jacket by adding a cooling water jacket 101 to ensure the circulation effect of the heat exchange medium in the cylinder head water jacket.

[0047] Combine Figure 1 and Figure 3 As shown, in a further embodiment of the present invention, the cylinder head body 1 is provided with multiple groups of exhaust portions 103 on the exhaust side, each group of exhaust portions 103 includes two exhaust passages 1031 arranged at intervals, and at least part of the cooling water jacket 101 is located between the two exhaust passages 1031 in the same group of exhaust portions 103.

[0048] Each exhaust section 103 corresponds to a cylinder in the engine, and the two exhaust ducts 1031 within each exhaust section 103 are arranged in the same direction as the cylinders in the engine. Furthermore, within the cylinder head body 1, a high-heat-load exhaust-side nose bridge region is formed between the two exhaust ducts 1031 within the same exhaust section 103. The cooling water jacket 101 is positioned within this region, allowing the heat exchange medium flowing through the cooling water jacket 101 to dissipate heat and cool this region, thereby improving its efficiency.

[0049] It can be understood that the longitudinally arranged reinforcing ribs 2 in the cylinder head body 1 separate the cylinder head water jacket into two parts, namely the exhaust side water jacket and the intake side water jacket 102, and in order to ensure the heat dissipation and cooling effect of the exhaust side nose bridge area between the two exhaust ducts 1031 in the same group of exhaust parts 103, a cooling water jacket 101 is provided between the two exhaust ducts 1031 in the same group of exhaust parts 103. The cooling water jacket 101 can connect the exhaust side water jacket and the intake side water jacket 102, and allow the heat exchange medium to flow through the exhaust side nose bridge area between the two exhaust ducts 1031 in the same group of exhaust parts 103, thereby achieving targeted heat dissipation for the area with high heat load in the cylinder head body 1, thereby improving the cooling effect at the exhaust side nose bridge area.

[0050] Reference Figure 2 As shown, Figure 2 Part of the cooling water jacket 101 and part of the air intake side water jacket 102 are shown in the figure. In some embodiments of the present invention, the connecting position between the air intake side water jacket 102 and the cooling water jacket 101 is arranged near the exhaust part 103.

[0051] Reference Figure 1 As shown, in some embodiments of the present invention, at least a portion of the exhaust duct 1031 is arranged longitudinally, the cooling water jacket 101 is arranged transversely, and the extension direction of the exhaust duct 1031 is perpendicular to the extension direction of the cooling water jacket 101. This allows the cooling water jacket 101 to be positioned to avoid the exhaust duct 1031. It should be noted that the aforementioned "transverse" also refers to the arrangement direction of the exhaust-side water jacket and the intake-side water jacket.

[0052] It is understood that the cooling water jacket 101 is a spatial structure, i.e., a channel structure through which the heat exchange medium flows, and the exhaust duct 1031 is a spatial structure formed in the cylinder head body 1. The exhaust side nose bridge area of ​​the cylinder head body 1 is a solid structure. The cooling water jacket 101 can be formed by machining holes and formed in the exhaust side nose bridge area. In the present invention, the extension direction of the cooling water jacket 101 is suitable for avoiding the exhaust duct 1031 in the exhaust portion 103, thereby improving the cooling effect of the exhaust side nose bridge area while facilitating the avoidance of interference between the cooling water jacket 101 and the exhaust duct 1031.

[0053] It should be noted that the extension manner of the cooling water jacket 101 in the cylinder head body 1 can be adaptively adjusted according to the specific structural shape of the cylinder head body 1, and is not limited thereto.

[0054] In some embodiments of the present invention, multiple cooling water jackets 101 are provided, and at least one cooling water jacket 101 is disposed between the two exhaust ducts 1031 of each exhaust section 103. In other words, a cooling water jacket 101 is provided at the exhaust-side nose bridge region corresponding to each exhaust section 103, thereby enhancing the cooling effect at the exhaust-side nose bridge region.

[0055] Combine Figure 1 and Figure 3 As shown, it is understood that when the cylinder head 100 is applied to a four-cylinder engine, the cylinder head body 1 is provided with four sets of exhaust ports 103. Accordingly, each set of exhaust ports 103 forms a corresponding exhaust-side nose bridge area. Thus, by providing multiple cooling water jackets 101, the cooling effect at each exhaust-side nose bridge area can be enhanced. The engine is not limited to a four-cylinder engine, and the number of cooling water jackets 101 can be adaptively adjusted according to the engine configuration to meet the cooling requirements of the cylinder head 100 in the exhaust-side nose bridge area.

[0056] In other embodiments of the present invention, a plurality of cooling water jackets 101 connected in parallel between the exhaust side water jacket and the intake side water jacket 102 are provided at each exhaust side nose bridge area, so as to increase the flow rate of the heat exchange medium flowing through the exhaust side nose bridge area by providing multiple sections of cooling water jackets 101, thereby improving the cooling effect at the exhaust side nose bridge area.

[0057] like Figure 1 and Figure 3 As shown, in some embodiments of the present invention, there are multiple reinforcing ribs 2, each reinforcing rib 2 is arranged between two adjacent exhaust portions 103, and the extending direction of the reinforcing rib 2 is the same as the extending direction of part of the exhaust duct 1031.

[0058] This facilitates the arrangement of the reinforcing rib 2 in the cylinder head body 1, so that the reinforcing rib 2 can be arranged at a position suitable for avoiding the exhaust portion 103, and can evenly improve the structural strength of the cylinder head body 1 in the area between every two adjacent exhaust portions 103.

[0059] It can be understood that the number of reinforcing ribs 2 can be adaptively adjusted according to the number of exhaust parts 103. By setting a corresponding number of reinforcing ribs 2 in the cylinder head water jacket of the cylinder head body 1, the deformation resistance of the cylinder head body 1 at the bottom plate can be fully improved, so that the engine cylinder head 100 can withstand the mechanical load and high thermal load when a high thermal efficiency engine is running.

[0060] like Figure 1 As shown, in some embodiments of the present invention, the exhaust duct 1031 includes an exhaust port section 1032, which is opened in a gradually expanding shape toward the bottom plate side of the cylinder head body 1, and the reinforcing rib 2 is arranged corresponding to the exhaust port section 1032 in the longitudinal direction.

[0061] Reference Figure 3As shown, the extension length of the reinforcement rib 2 in the longitudinal direction is H, and the reinforcement rib 2 corresponds to part of the exhaust portion 103 in the vertical direction, so as to improve the structural strength of the exhaust portion 103 near the cylinder head body 1 at the bottom plate through the longitudinally extending reinforcement rib 2.

[0062] It should be noted that the longitudinal height dimension of the reinforcing rib 2 in the cylinder head body 1 (i.e., the aforementioned parameter "H") is not specifically limited herein. The longitudinal height dimension of the reinforcing rib 2 can be designed based on the mechanical and thermal loads to which the cylinder head body 1 is subjected during engine operation, so that the engine cylinder head 100 can withstand the high mechanical and thermal loads generated by a high-thermal-efficiency engine during operation. In other words, when the engine is running, the greater the mechanical load (caused by explosion pressure) and thermal load (caused by temperature) to which the cylinder head body 1 is subjected, the greater the longitudinal extension length of the reinforcing rib 2 provided on the cylinder head body 1 can be, thereby enhancing the longitudinal deformation resistance of the cylinder head body 1 when heated, preventing problems such as cracking in the engine cylinder head 100, and improving the reliability and stability of the engine during operation.

[0063] like Figure 2 As shown, in some embodiments of the present invention, the cross-sectional aperture size of the cooling water jacket 101 in the extension direction is L, and satisfies the relationship: 3mm≤L≤9mm. When L satisfies the above relationship, the cooling water jacket 101 can ensure effective communication between the intake side water jacket 102 and the exhaust side water jacket.

[0064] The cross-sectional shape of the cooling water jacket 101 along its extension direction can be circular, elliptical, or oblong. For example, if the cooling water jacket 101 has a circular flow cross-sectional shape, L is the diameter of the circular flow cross-sectional shape. For example, if the cooling water jacket 101 has an elliptical flow cross-sectional shape, L is the minor axis of the elliptical flow cross-sectional shape. In other words, "L" can be the minimum aperture size of the flow cross-sectional shape of the cooling water jacket 101.

[0065] It should be noted that the aperture size of the cooling water jacket 101 can be determined according to the distance parameter between the two exhaust passages 1031 in the same exhaust portion 103, preferably satisfying the relationship: 3mm≤L≤9mm.

[0066] In some embodiments of the present application, the cylinder head body 1 and the reinforcing rib 2 are integrally provided. The integrated engine cylinder head 100 helps to improve the cooling effect and increase the specific power of the engine, thereby improving the performance of the engine.

[0067] It should be noted that in the engine cylinder head 100, the cooling water jacket 101 can be formed by machining holes or casting. In other words, the molding method of the cooling water jacket 101 in the cylinder head body 1 can be designed according to the production and processing requirements of the engine cylinder head 100.

[0068] The “processed hole” may be specifically processed by drilling with a reamer, but is not limited thereto.

[0069] The engine cylinder head 100 according to the embodiment of the present invention has at least the following advantages compared to the prior art:

[0070] (1) The cylinder head body 1 is provided with a longitudinally extending reinforcing rib 2. The reinforcing rib 2 can enhance the longitudinal deformation resistance of the engine cylinder head 100 and effectively suppress the longitudinal deformation of the cylinder head body 1 after being heated, thereby effectively preventing the high thermal efficiency engine cylinder head 100 from cracking after being subjected to increased mechanical and thermal loads, thereby improving the operating reliability and stability of the engine.

[0071] (2) A cooling water jacket 101 is provided in the nose bridge area on the exhaust side of the cylinder head body 1 (an area with a higher heat load than other areas of the cylinder head body 1). The cooling water jacket 101 can connect the exhaust side water jacket and the intake side water jacket 102, and can improve the cooling effect of the cylinder head body 1 in the nose bridge area on the exhaust side, so that the ability of the engine cylinder head 100 to withstand the heat load meets its material limit, thereby improving the reliability and stability of the engine cylinder head 100 when the engine is running.

[0072] The engine according to the embodiment of the present invention includes the above-mentioned engine cylinder head 100 .

[0073] The advantages of the engine and the above-mentioned engine cylinder head 100 over the prior art are the same and will not be repeated here.

[0074] A vehicle according to an embodiment of the utility model includes the above-mentioned engine.

[0075] The advantages of the vehicle and the above-mentioned engine over the prior art are the same and will not be repeated here.

[0076] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

[0077] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0078] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0079] In the description of the present invention, "plurality" means two or more.

[0080] In the description of the present invention, a first feature being “on” or “under” a second feature may include the first and second features being in direct contact with each other, or the first and second features not being in direct contact with each other but being in contact with each other via another feature therebetween.

[0081] In the description of the present invention, “on”, “above” and “above” a first feature of a second feature include the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0082] Throughout this specification, reference to terms such as "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples" means that a specific feature, structure, material, or characteristic described in conjunction with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, illustrative uses of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0083] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to the embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the claims and their equivalents.

Claims

1. An engine cylinder head, characterized in that: include: A cylinder head body (1), wherein the cylinder head body (1) is formed with a cylinder head water jacket; A reinforcing rib (2) is provided on the cylinder head body (1) and extends from a bottom plate of the cylinder head body (1) toward an inner side of the cylinder head body (1) along a longitudinal direction, and the reinforcing rib (2) is located between an intake side water jacket (102) and an exhaust side water jacket of the cylinder head water jacket.

2. The engine cylinder head according to claim 1, characterized in that: The cylinder head water jacket further comprises a cooling water jacket (101), which is provided on the cylinder head body (1) and communicates between the intake side water jacket (102) and the exhaust side water jacket.

3. The engine cylinder head according to claim 2, characterized in that: The cylinder head body (1) is provided with multiple groups of exhaust parts (103) on the exhaust side, each group of exhaust parts (103) includes two exhaust passages (1031) arranged at intervals, and the cooling water jacket (101) is located between the two exhaust passages (1031).

4. The engine cylinder head according to claim 3, characterized in that: The exhaust duct (1031) is arranged in the longitudinal direction, the cooling water jacket (101) is arranged in the transverse direction, and the extension direction of the exhaust duct (1031) is perpendicular to the extension direction of the cooling water jacket (101).

5. The engine cylinder head according to claim 3, characterized in that: There are multiple cooling water jackets (101), and at least one section of the cooling water jacket (101) is provided between the two exhaust ducts (1031) of each exhaust portion (103).

6. The engine cylinder head according to claim 3, characterized in that: There are a plurality of reinforcing ribs (2), each of which is arranged between two groups of adjacent exhaust portions (103), and the extending direction of the reinforcing ribs (2) is the same as the extending direction of part of the exhaust duct (1031).

7. The engine cylinder head according to claim 2, characterized in that: The cross-sectional aperture size of the cooling water jacket (101) in the extension direction is L, and satisfies the relationship: 3mm≤L≤9mm.

8. The engine cylinder head according to claim 1, characterized in that: The cylinder head main body (1) and the reinforcing rib (2) are integrally arranged.

9. An engine, characterized in that: The invention comprises an engine cylinder head according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising an engine according to claim 9.

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