Engine and vehicle with same

Abstract

The engine comprises a cylinder body, a first cover cap and a second cover cap, one side of the cylinder body is provided with a timing cavity, the timing cavity is provided with a first opening and a second opening, the first cover cap covers the first opening, and the second cover cap covers the second opening; the first cover cap and / or the second cover cap are / is provided with protruding parts protruding away from the cylinder body relative to the surfaces of the cover caps. According to the engine, the first opening and the second opening are formed in the timing cavity of the cylinder body, and the first cover cap and the second cover cap cover the first opening and the second opening correspondingly, so that the timing cover cap is constructed to be of a split structure, at least one split cover cap is provided with the protruding part, a large-plane structure is avoided, and the reliability of the engine is improved. Therefore, the probability of resonance is reduced, the noise radiation area is reduced, and the NVH (Noise Vibration and Harshness) performance of the engine is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of engine, especially to an engine and a vehicle with the same. BACKGROUND

[0002] In the related art, an engine controls opening and closing of a valve through a timing mechanism, the timing mechanism is arranged on a cylinder block of the engine, and is sealed through a timing cover, that is, the timing cover covers and shields a timing chain, a timing belt, a timing gear and the like of the timing mechanism to achieve dust and foreign matter protection.

[0003] However, the existing timing cover has poor inhibitory effect on working noise of the engine, especially noise of the timing chain or the timing belt, which affects the use experience. SUMMARY

[0004] The utility model aims at at least solving one of the technical problems existing in the prior art. To this end, one object of the utility model is to provide an engine, which has smaller working noise and better use experience.

[0005] The application further provides a vehicle using the engine.

[0006] In a first aspect, the application provides an engine, which comprises a cylinder block, a first cover and a second cover, one side of the cylinder block has a timing cavity, the timing cavity has a first opening and a second opening, the first cover is arranged at the first opening, and the second cover is arranged at the second opening.

[0007] The first cover and / or the second cover is / are provided with a protruding part protruding away from the cylinder block relative to a cover surface.

[0008] According to the engine provided in the application, the first opening and the second opening are arranged on the timing cavity of the cylinder block, the first cover and the second cover are arranged at the first opening and the second opening respectively, the timing cover is constructed as a split structure, at least one split cover has a protruding part, a large plane structure is avoided, a mode is improved, the probability of resonance is reduced, noise radiation area is reduced, and the NVH performance of the engine is improved.

[0009] According to some embodiments of the present application, the first cover includes a first peripheral connecting portion, a first cover body located in the first peripheral connecting portion, and a first protruding portion, the first protruding portion and the first cover body are sequentially arranged in the first direction, and the distance between the protruding top of the first protruding portion and the side surface of the first cover body away from the cylinder body is 10-15 mm; and / or the second cover includes a second peripheral connecting portion, a second cover body located in the second peripheral connecting portion, and a second protruding portion, and the second cover body defines a third plane, the second protruding portion defines a fourth plane, the third plane is parallel to the fourth plane, and the distance between the third plane and the fourth plane is 12-15 mm.

[0010] According to some embodiments of the present application, the first cover body defines a first plane, the first protruding portion defines a second plane connected with the first plane, and the dihedral angle between the first plane and the second plane ranges from 18° to 25°.

[0011] According to some embodiments of the present application, the first cover body is provided with a first reinforcing rib on the side facing the cylinder body, the first reinforcing rib is spaced apart from the first protruding portion, and the first reinforcing rib is configured as a grid rib.

[0012] According to some embodiments of the present application, the second cover further includes a first recess portion, the first recess portion is located adjacent to the cylinder body relative to the second cover body, and the first recess portion is spaced apart from the second protruding portion, the second protruding portion and the first recess portion have a projection profile facing the cylinder body within the second cover body, the first recess portion is used to connect with the cylinder body, and the distance between the first recess portion and the third plane is 5-10 mm.

[0013] According to some embodiments of the present application, the second cover body is provided with a second reinforcing rib on the side facing the cylinder body, the second reinforcing rib is spaced apart from the first recess portion, and the second reinforcing rib is configured as a grid rib.

[0014] According to some embodiments of the present application, the second cover further includes a second recess portion, the second recess portion is located adjacent to the cylinder body relative to the second cover body, and the second recess portion coincides with at least part of the first recess portion, the first recess portion has at least two connecting holes, and one of the connecting holes is located within the projection profile of the second recess portion facing the cylinder body, and the distance between the second recess portion and the third plane is 1-3 mm.

[0015] According to some embodiments of the present application, the cylinder body includes a cylinder body and a cylinder cover, the timing cavity includes a first timing cavity and a second timing cavity, the cylinder cover defines a first opening, the cylinder body defines a second opening, the first cover is connected with the cylinder cover to define the first timing cavity, and the second cover is connected with the cylinder body to define the second timing cavity.

[0016] According to some embodiments of the present application, the first cover is configured as a plastic member and is sealed to the cylinder body by a seal, and the second cover is configured as a metal member and is glued to the cylinder body.

[0017] In a second aspect, the present application provides a vehicle comprising the engine of the above embodiments.

[0018] Additional aspects and advantages of the present application will be made apparent from the following description of embodiments of the present application, given as a non-restrictive example with reference to the enclosed drawings. BRIEF DESCRIPTION OF DRAWINGS

[0019] The above and / or additional aspects and advantages of the present application will become apparent and be readily appreciated from the following description of embodiments of the present application, given with reference to the following drawings:

[0020] Figure 1 is a schematic view of an engine according to embodiments of the present application;

[0021] Figure 2 is a front view of a first cover according to embodiments of the present application;

[0022] Figure 3 is a rear view of a first cover according to embodiments of the present application;

[0023] Figure 4 is a sectional view of a first cover according to embodiments of the present application;

[0024] Figure 5 is a front view of a second cover according to embodiments of the present application;

[0025] Figure 6 is a rear view of a second cover according to embodiments of the present application;

[0026] Figure 7 is a sectional view of a second cover according to embodiments of the present application;

[0027] Figure 8 is another schematic view of an engine according to embodiments of the present application.

[0028] REFERENCE NUMERALS:

[0029] engine 100,

[0030] cylinder body 10, cylinder main body 11, cylinder head 12, water pump scroll 13,

[0031] first cover 20, first peripheral side connecting portion 21, first cover main body 22, first protruding portion 23, first reinforcing rib 24,

[0032] Second cover 30, second week side connecting part 31, second cover body 32, second convex part 33, first recessed part 34, connecting hole 341, second recessed part 35, second reinforcing rib 36, idler wheel fixing point 37, anti-off structure 38, front oil seal seat 39,

[0033] First opening a, second opening b, first plane c, second plane d, third plane e, fourth plane f,

[0034] Distance L1 between convex top of first convex part and first cover body, distance L2 between third surface and fourth surface, distance L3 between third surface and first recessed part, distance L4 between third surface and second recessed part,

[0035] Dihedral angle angle a between first plane and second plane. DETAILED DESCRIPTION

[0036] To make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be clearly described below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are some of the embodiments of the present application, but not all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Unless otherwise defined, all technical and scientific terms used in the present application have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs; the terms used in the specification of the present application are only for the purpose of describing the specific embodiments of the present application, and are not intended to limit the present application; the terms "include" and "have" in the specification and claims of the present application and their any variants are intended to cover the non-exclusive inclusion. The terms "first", "second" and the like in the specification and claims of the present application or the above description of drawings are used to distinguish different objects, and are not intended to describe a particular order or primary and secondary relationship.

[0038] In the present application, the phrase "embodiment" means that the specific features, structures or characteristics described in combination with the embodiment can be included in at least one embodiment of the present application. The appearance of this phrase in various places in the specification does not necessarily mean the same embodiment, nor is it an independent or alternative embodiment that is not mutually exclusive with other embodiments.

[0039] In the description of the application, it is necessary to point out that, unless otherwise explicitly specified and limited, the terms "mount", "connect", "connection", "attach" should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected, it can be directly connected, or indirectly connected through intermediate medium, it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the application can be understood according to the specific circumstances.

[0040] The term "and / or" in the application is only to describe the association relationship of the associated objects, which means that there can be three relationships, for example, A and / or B can mean that A exists alone, A and B exist together, and B exists alone. In addition, the character " / " in the application generally represents that the front and rear associated objects have an "or" relationship.

[0041] In the embodiments of the application, the same reference signs represent the same parts, and for the sake of brevity, the detailed description of the same parts is omitted in different embodiments. It should be understood that the thickness, length and width of various components in the embodiments of the application shown in the drawings, and the overall thickness, length and width of the integrated device are only exemplary and should not constitute any limitation on the application.

[0042] In the description of the application, it is necessary to understand that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the application.

[0043] In the description of the application, the first feature "above" or "below" the second feature can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween.

[0044] In the description of the application, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature.

[0045] "Multiple" appearing in the application means two or more (including two).

[0046] The engine needs to control the opening or closing of the intake valve and exhaust valve at the appropriate time node through the timing mechanism, and the timing sprocket (exhaust camshaft sprocket and intake camshaft sprocket) of the timing mechanism is connected with the engine camshaft through a timing chain or a timing belt, so as to drive the timing sprocket to rotate synchronously when the engine camshaft rotates, so as to selectively open or close a plurality of groups of intake valves and exhaust valves of a plurality of cylinders at the appropriate time node.

[0047] The timing sprocket, timing chain and the like are arranged on one side of the cylinder block of the engine, and need to be covered and sealed by the timing cover to avoid damage to the working stability of the timing mechanism by dust, foreign matter and the like, and to improve the working stability and reliability. However, the timing cover is prone to resonance, thereby radiating noise and affecting the use experience.

[0048] It should be noted that, for a diesel engine, due to the high compression ratio and high output torque characteristics of the diesel engine, sleeve chains may be used as timing chains. Compared with toothed chains and silent chains, the noise is larger, the overall sound insulation and noise reduction demand is higher, and the common timing cover is a large plate structure and is arranged on one side of the cylinder block. The overall modal is low, which increases the working noise of the engine, especially the timing noise of the timing mechanism.

[0049] Based on this, the engine is proposed based on the cylinder block structure design, the timing cover is split into a first cover and a second cover, and at least one of them is configured to have a protruding portion, which can improve the modal of the timing cover, reduce the probability of resonance and noise radiation of the timing cover, and improve the NVH performance.

[0050] Reference will now be made to Figures 1-8 The engine 100 and the vehicle according to the embodiments of the present application are described.

[0051] In the first aspect, in combination with Figure 1 and Figure 8 It is proposed that the engine 100 comprises a cylinder block 10, a first cover 20 and a second cover 30. One side of the cylinder block 10 has a timing cavity, and the timing cavity has a first opening a and a second opening b. The first cover 20 is arranged on the first opening a, and the second cover 30 is arranged on the second opening b.

[0052] Specifically, the timing cavity is formed on the cylinder block 10, and the timing mechanism can be arranged in the timing cavity, such as timing sprocket, timing belt or timing chain, etc. The first cover 20 and the second cover 30 are arranged on the first opening a and the second opening b respectively to close the timing cavity, so that the timing cavity is separated from the outside to achieve the blocking and protection effect, and at the same time, the noise inside the timing cavity is prevented from being directly transmitted to the outside through the air to achieve preliminary noise reduction.

[0053] It should be noted that in the prior art, the timing cover is a large plate structure, that is, the timing cover is formed as an integral plate and covers an opening, although it can achieve preliminary noise reduction, but the overall size of the large plate structure is large, the overall is a large plane, the modal is low, the further suppression effect on noise is poor, resulting in poor NVH performance of the engine 100, poor user experience.

[0054] Based on this, the timing cover is split into a split structure of the first cover 20 and the second cover 30, and is respectively sealed on the first opening a and the second opening b, to preliminarily improve the modal of the timing cover, and then a protruding portion protruding away from the cylinder block 10 relative to the cover surface is arranged on the first cover 20 and / or the second cover 30, to improve the modal of the first cover 20 or the second cover 30, avoid the large plane structure, further improve the modal of the first cover 20 and / or the second cover 30, reduce the probability of resonance, effectively reduce the noise radiation area, and improve the NVH performance.

[0055] The first cover 20 and / or the second cover 30 is provided with a protruding portion, which means that in some embodiments, the first cover 20 is provided with a protruding portion, in other embodiments, the first cover 20 and the second cover 30 are both provided with a protruding portion, and in preferred embodiments, the first cover 20 and the second cover 30 are both provided with a protruding portion.

[0056] According to the engine 100 of the embodiment of the present application, the first opening a and the second opening b are arranged on the timing cavity of the cylinder block 10, and the first cover 20 and the second cover 30 are respectively arranged on the first opening a and the second opening b, so as to construct the timing cover as a split structure, and at least one split cover has a protruding portion, to avoid the large plane structure, improve the modal, further reduce the probability of resonance, reduce the noise radiation area, and improve the NVH performance of the engine 100.

[0057] The timing cavity is integrated on the cylinder block 10, and the first cover 20 and the second cover 30 can be arranged in the up-down direction (i.e. the first direction) to be spaced apart, to be respectively arranged on the first opening a and the second opening b arranged in the first direction, which can reduce the opening area on the cylinder block 10, and avoid the large plane structure by arranging the protruding portion. The first cover 20 can be made of plastic material, and the second cover 30 can further integrate the front oil seal seat 39, the idler fixing point 37 (such as an idler seat) and other structures, which can be made of metal material such as aluminum alloy, and used to seal the timing cavity. Sealing members such as sealing glue and sealing gaskets can be arranged between the cylinder block 10 and the first cover 20 and between the cylinder block 10 and the second cover 30.

[0058] Exemplarily, the first cover 20 is configured as a plastic piece, such as PA66 (polyhexamethylene adipamide), and is sealed with the cylinder body 10 by a sealing piece, and the second cover 30 is configured as a metal piece, such as an aluminum alloy, and is sealed with the cylinder body 10 by gluing to seal the timing chamber, thereby achieving isolation of noise air transmission.

[0059] As shown in Figure 2 , Figure 3 and Figure 4 , according to some embodiments of the present application, the first cover 20 comprises a first circumferential connecting portion 21, a first cover body 22 located in the first circumferential connecting portion 21, and a first protruding portion 23, the first protruding portion 23 and the first cover body 22 are sequentially arranged in the first direction, and the distance between the protruding top of the first protruding portion 23 and the side surface of the first cover body 22 away from the cylinder body 10 is 10-15 mm; and / or

[0060] As shown in Figure 5 , Figure 6 and Figure 7 , according to some embodiments of the present application, the second cover 30 comprises a second circumferential connecting portion 31, a second cover body 32 located in the second circumferential connecting portion 31, and a second protruding portion 33, and the second cover body 32 defines a third plane e, and the second protruding portion 33 defines a fourth plane f, the third plane e is parallel to the fourth plane f, and the distance between the third plane e and the fourth plane f is 12-15 mm.

[0061] Specifically, in the embodiment in which the first cover 20 has the first protruding portion 23, the first circumferential connecting portion 21 can be formed as a connecting flange of the circumferential edges of the first cover body 22 and the first protruding portion 23, and the first circumferential connecting portion 21 is used to connect with the cylinder body 10, a plurality of assembly holes can be formed on the first circumferential connecting portion 21, and the first circumferential connecting portion 21 is fixed on the cylinder body 10 by bolts, and the span between adjacent assembly holes is 50-70 mm, which not only can improve the connection stability and reliability, but also can improve the sealing effect, the constraint effect on the first cover 20, and the noise suppression effect of the first cover 20, especially the air transmission.

[0062] Further, the first protruding portion 23 is arranged on the first cover body 22, and the arrangement of the first protruding portion 23 can make the first cover 20 include the first plane c defined by the first cover body 22 and the protruding plane defined by the second protruding portion 33, so as to avoid the first cover 20 being formed as a large plane structure by the concave-convex plane, thereby further improving the modal of the first cover 20 to achieve the technical effect of reducing the noise radiation area.

[0063] Meanwhile, it can be understood that the first protruding part 23 can be used to avoid components in the timing cavity, and the first protruding part 23 and the first cover body 22 are sequentially arranged in the first direction, so that the position of the first protruding part 23 is more reasonable, and the first cover 20 and the cylinder block 10 are more closely matched to improve the space occupation and reduce the probability of interference with surrounding components.

[0064] It can be understood that the first protruding part 23 is used to avoid the timing sprocket, that is, to avoid the intake timing sprocket corresponding to the intake camshaft and the exhaust timing sprocket corresponding to the exhaust camshaft.

[0065] The protruding vertex of the first protruding part 23 refers to the distance between the part of the first protruding part 23 farthest from the cylinder block 10 and the outer surface (i.e. the first surface) of the first cover body 22, and the distance between the protruding vertex and the first surface can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, etc. On the one hand, it can avoid the first cover 20 being too close to the timing sprocket to reduce the probability of interference between the first cover 20 and the timing sprocket, and can avoid the protruding size of the first protruding part 23 being too large to take into account the space occupation.

[0066] Of course, the structure of the embodiment of the present application is not limited to this, in other embodiments, the second peripheral side connecting part 31 is formed as a connecting flange of the peripheral side edge of the second cover body 32, the second peripheral side connecting part 31 is used to connect with the cylinder block 10, a plurality of assembly holes can be formed on the second peripheral side connecting part 31, and the second peripheral side connecting part 31 is connected with the cylinder block 10 through bolts, the aperture of the assembly hole on the second peripheral side connecting part 31 can be consistent with the aperture of the assembly hole of the first peripheral side connecting part 21, to realize the universality of the bolts, reduce the assembly difficulty, and the span between adjacent assembly holes is 50mm-60mm, which can not only improve the connection stability and reliability of the second cover 30 on the cylinder block 10, but also improve the sealing effect of the second cover 30, improve the constraint effect on the second cover 30, and improve the noise suppression effect of the second cover 30.

[0067] Further, the second protruding part 33 is arranged in the second cover body 32, and the arrangement of the second protruding part 33 can increase the number of parting surfaces of the second cover body 32 to avoid large plane structures, thereby improving the modal of the second cover 30 to achieve the technical effect of reducing the noise radiation area.

[0068] It can be understood that the third surface defined by the second cover body 32 is parallel to the fourth surface defined by the second protruding part 33, and the distance between the two can be 12 mm, 13 mm, 14 mm, 15 mm, etc., so that the protruding size of the second protruding part 33 is more reasonable, avoiding that the protruding size of the second protruding part 33 is too small, which leads to limited modal improvement effect, so as to balance the noise reduction effect, and avoiding that the protruding size of the second protruding part 33 is too large, which can balance the space occupation of the second cover 30 and reduce the material cost of the second cover 30.

[0069] Of course, in the preferred embodiment, the first cover 20 is provided with the first protruding part 22 at the same time, and the second cover 30 is also provided with the second protruding part 32 at the same time.

[0070] As shown in Figure 4 According to some embodiments of the present application, the first cover body 22 defines a first plane c, the first protruding part 23 defines a second plane d connected with the first plane c, and the dihedral angle between the first plane c and the second plane d ranges from 18° to 25°.

[0071] That is, the first protruding part 23 is protrudingly arranged relative to the first cover body 22, and the side edge connected with the first cover body 22 of the first protruding part 23 is formed as a second surface, and the second surface and the first surface defined by the first cover body 22 have an included angle, and the angle of the included angle can be 18°, 19°, 20°, 21°, 22°, 23°, 24°, 25°, etc.

[0072] In this way, on the one hand, the angle of the included angle can be avoided to be too small to reduce the difficulty of processing and forming, and on the other hand, the angle of the included angle can be avoided to be too large to make the overall size of the first protruding part 23 more reasonable, while effectively avoiding the internal components of the timing chamber, the space occupation of the first cover 20 as a whole can be smaller, and the engine 100 as a whole is more compact and the space occupation is more reasonable.

[0073] More importantly, while avoiding large plane structure, more reasonable angle setting can also improve the modal of the first cover 20, so that the noise suppression effect is better.

[0074] In Figure 3 the embodiment shown, according to some embodiments of the present application, the first cover body 22 is provided with a first reinforcing rib 24 on the side facing the cylinder block 10, the first reinforcing rib 24 is spaced apart from the first protruding part 23, and the first reinforcing rib 24 is configured as a grid rib.

[0075] Specifically, the first reinforcing rib 24 is configured as a grid rib, which means that the first reinforcing rib 24 includes a transverse rib extending along the width direction of the first cover 20, a longitudinal rib extending along the length direction of the first cover 20, and an inclined rib connecting the transverse rib and the longitudinal rib and extending to the edge of the first cover body 22, and the first reinforcing rib 24 is spaced apart from the first protrusion 23.

[0076] In this way, on the one hand, the first reinforcing rib 24 is spaced apart from the first protrusion 23, which can avoid the first reinforcing rib 24 extending to the first protrusion 23, so as to reduce the probability of interference between the first reinforcing rib 24 and the surrounding components, and on the other hand, the arrangement of the first reinforcing rib 24 can improve the structural strength of the first cover 20, so as to further improve the modal of the first cover 20 and improve the NVH performance of the first cover 20.

[0077] In combination with Figure 5 and Figure 7 It is shown that, according to some embodiments of the present application, the second cover 30 further includes a first recess 34, the first recess 34 is arranged adjacent to the cylinder body 10 relative to the second cover body 32, and the first recess 34 is spaced apart from the second protrusion 33, the second protrusion 33 and the first recess 34 are both located within the second cover body 32 in the orthographic projection profile towards the cylinder body 10, and the first recess 34 is used to be connected with the cylinder body 10.

[0078] Specifically, the first recess 34 is recessed towards the cylinder body 10 relative to the second cover body 32, which can increase the number of profiles of the second cover 30 by arranging the first recess 34, and the increase of the number of profiles can further improve the structural strength of the second cover 30 and improve the modal of the second cover 30, thereby improving the noise suppression effect.

[0079] It can be understood that the first recess 34 is located inside the second cover body 32, and the connection structure such as the connecting hole 341 is arranged in the first recess 34, so that the first cover 20 is connected with the cylinder body 10 on the peripheral side, and further adding the connection structure in the first recess 34 on the middle region of the second cover 30 can further improve the connection reliability and stability of the second cover 30 and the cylinder body 10, and can further improve the constraint effect of the second cover 30 and the cylinder body 10 in the assembled state, so as to improve the modal in the assembled state and further improve the noise suppression effect.

[0080] It should be noted that the positioning pin structure can also be arranged on the second peripheral side connecting portion 31, so that after positioning by the positioning pin, the assembly of the second cover 30 and the cylinder body 10 is further performed, which can also improve the assembly precision and reduce the assembly difficulty.

[0081] As Figure 6As shown, according to some embodiments of the present application, the second cover body 32 is provided with a second reinforcing rib 36 on one side of the cylinder body 10, the second reinforcing rib 36 is spaced apart from the first recess 34, and the second reinforcing rib 36 is configured as a grid rib.

[0082] Specifically, the second reinforcing rib 36 is configured as a grid rib, the second reinforcing rib 36 includes a transverse rib extending along the width direction of the second cover body 32, a longitudinal rib extending along the length direction of the second cover body 32, and an inclined rib extending to the edge of the second cover body 32 and connected with the longitudinal rib and the transverse rib, and through the arrangement of the second reinforcing rib 36, the structural strength of the second cover 30 can be further improved, the modal of the second cover 30 can be further improved, the noise suppression effect of the second cover 30 can be improved, and especially the probability of resonance of the second cover 30 can be reduced.

[0083] According to some embodiments of the present application, the second cover 30 further comprises a second recess 35, the second recess 35 is arranged adjacent to the cylinder body 10 relative to the second cover body 32, and the second recess 35 at least partially overlaps the first recess 34, the first recess 34 has at least two connecting holes 341, and one of the connecting holes 341 is located within the projection profile range of the second recess 35 towards the cylinder body 10.

[0084] Among them, the first recess 34 has at least two connecting holes 341 to realize the connection between the middle region of the second cover 30 and the cylinder body 10, to improve the modal of the second cover 30 in the constrained state, and the first recess 34 at least partially overlaps the second recess 35, and one connecting hole 341 is located within the projection profile range of the second recess 35, so that the multiple connecting holes 341 are arranged more adjacent to the cylinder body 10 relative to the second cover body 32, the length of the stud corresponding to the connecting hole 341 arranged on the cylinder body 10 can be set shorter, the structure of the cylinder body 10 is changed less, and the overall processing is simpler and more convenient.

[0085] More importantly, through the arrangement of the second recess 35, the number of parting surfaces on the second cover 30 can be further increased to improve the noise suppression effect.

[0086] It can be understood that the cylinder body 10 is additionally provided with a stud inside, and the stud is connected with the first recess 34, so that multiple fixing points, such as two, can be added between the cylinder body 10 and the second cover 30 to realize the constraint enhancement of the middle region of the second cover 30, and the modal value of the second cover 30 in the constrained state can be improved by 17%.

[0087] As shown, Figure 7 The distance between the second recess 35 and the third plane e is 1mm-3mm, and the distance between the first recess 34 and the third plane e is 5mm-10mm.

[0088] That is, the distance between the first recessed portion 34 and the third plane e can be 5mm, 6mm, 7mm, 8mm, 9mm, 10mm, etc., and the distance between the second recessed portion 35 and the third plane e can be 1mm, 2mm, 3mm, etc.

[0089] In this way, on the one hand, the first recessed portion 34 has a larger recessed size, so that the connection of the middle region of the second cover 30 with the cylinder body 10 is lower in difficulty, and the second recessed portion 35 is provided, which can further increase the number of parting surfaces to improve the modal.

[0090] It should be pointed out that the second cover 30 also integrates a anti-drop structure 38, which is used to limit the formal chain or the formal belt, and reduce the probability of the formal chain or the timing belt falling off, and a idler fixing point 37 is formed, which is used to install the idler of the accessory train.

[0091] As shown in Figure 8 According to some embodiments of the present application, the cylinder body 10 includes a cylinder body 11 and a cylinder cover 12, the timing chamber includes a first timing chamber and a second timing chamber, the cylinder cover 12 defines a first opening a, the cylinder body 11 defines a second opening b, the first cover 20 is connected with the cylinder cover 12 to define the first timing chamber, and the second cover 30 is connected with the cylinder body 11 to define the second timing chamber.

[0092] Specifically, the timing mechanism is arranged at the front end of the cylinder body 10, which can be used to synchronously drive the high-pressure oil pump, the exhaust camshaft and the intake camshaft, and the oil pump, and the high-pressure oil pump can be arranged at the front end of the intake side of the cylinder body 10, and the front end of the exhaust side is reserved for the water pump arrangement space, and the water pump volute 13 is integrated on the cylinder body 10.

[0093] Further, the cylinder body 11 and the cylinder cover 12 define the timing chamber, and the timing chamber can include the first timing chamber defined by the cylinder cover 12 and the first cover 20, and the second timing chamber defined by the cylinder body 11 and the second cover 30, and the first cover 20 is sealed with the first opening a, and the second cover 30 is sealed with the second opening b, which can reduce the bonding surface between the timing cover and the cylinder body 10, so as to reduce the probability of oil leakage between the timing cover and the cylinder body 10.

[0094] In a second aspect, the present application provides a vehicle, comprising the engine 100 in the above embodiments.

[0095] According to the vehicle of the present application, the engine 100 is used, the working noise of the engine 100 is smaller, and the working stability is higher, so as to improve the driving comfort of the vehicle.

[0096] Other configurations and operations of the engine 100 and the vehicle according to the embodiments of the present application are known to those skilled in the art, and thus will not be described here.

[0097] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "exemplary embodiment", "example", "specific example", or "some examples" etc means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the exemplary description of the above terms does not necessarily mean 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.

[0098] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. An engine characterized by, The cylinder (10) has a timing cavity on one side, and the timing cavity has a first opening (a) and a second opening (b); a first cover (20) covers the first opening (a), and a second cover (30) covers the second opening (b); wherein the first cover (20) and / or the second cover (30) is provided with a protruding part protruding away from the cylinder (10) relative to the cover surface. The first cover (20) comprises a first circumferential connecting part (21), a first cover body (22) located in the first circumferential connecting part (21), and a first protruding part (23), the first protruding part (23) and the first cover body (22) are sequentially arranged in a first direction, and the distance between the protruding top point of the first protruding part (23) and the side surface of the first cover body (22) away from the cylinder (10) is 10-15 mm; and / or the second cover (30) comprises a second circumferential connecting part (31), a second cover body (32) located in the second circumferential connecting part (31), and a second protruding part (33), and the second cover body (32) defines a third plane (e), and the second protruding part (33) defines a fourth plane (f), the third plane (e) is parallel to the fourth plane (f), and the distance between the third plane (e) and the fourth plane (f) is 12-15 mm. The first cover body (22) defines a first plane (c), and the first protruding part (23) defines a second plane (d) connected with the first plane (c), and the dihedral angle between the first plane (c) and the second plane (d) ranges from 18° to 25°. The first cover body (22) is provided with a first reinforcing rib (24) on the side facing the cylinder (10), the first reinforcing rib (24) is spaced apart from the first protruding part (23), and the first reinforcing rib (24) is configured as a grid rib.

2. The engine of claim 1, wherein The second cover (30) further comprises a first recess (34) arranged adjacent to the cylinder (10) relative to the second cover body (32), and the first recess (34) is spaced apart from the second protruding part (33), the second protruding part (33) and the first recess (34) have a projection profile facing the cylinder (10) located in the second cover body (32), the first recess (34) is used to connect with the cylinder (10), and the distance between the first recess (34) and the third plane (e) is 5-10 mm.

3. The engine of claim 2, wherein, The second cover body (32) is provided with a second reinforcing rib (36) on the side facing the cylinder (10), the second reinforcing rib (36) is spaced apart from the first recess (34), and the second reinforcing rib (36) is configured as a grid rib.

4. The engine of claim 2 or 3, wherein, ​ 5. The engine of claim 2, wherein, ​ 6. The engine of claim 5, wherein, ​ 7. The engine of claim 5, wherein The second cover (30) further comprises a second recess (35) arranged adjacent to the second cover body (32) relative to the cylinder block (10), and the second recess (35) is at least partially coincident with the first recess (34), the first recess (34) has at least two connecting holes (341), and one of the connecting holes (341) is located within the projection profile range of the second recess (35) towards the cylinder block (10), and the distance between the second recess (35) and the third plane (e) is 1-3 mm.

8. The engine of claim 1, wherein The cylinder block (10) comprises a cylinder body (11) and a cylinder cover (12), the timing chamber comprises a first timing chamber and a second timing chamber, the cylinder cover (12) defines the first opening (a), the cylinder body (11) defines the second opening (b), the first cover (20) is connected to the cylinder cover (12) to define the first timing chamber, and the second cover (30) is connected to the cylinder body (11) to define the second timing chamber.

9. The engine of claim 1, wherein The first cover (20) is configured as a plastic part and is sealed to the cylinder block (10) by a sealing member, and the second cover (30) is configured as a metal part and is sealed to the cylinder block (10) by glue.

10. A vehicle characterized by comprising: The engine of any one of claims 1-9. The engine of any one of claims 1-9.

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