Engine shell, engine and vehicle

Abstract

The utility model discloses an engine shell, an engine and a vehicle. The engine shell comprises a shell body, a first transverse reinforcing rib, a timing cover flange and an inclined reinforcing rib. The first transverse reinforcing rib extends from the first end of the shell to the second end of the shell, the first end of the first transverse reinforcing rib is close to the first end of the shell, and the second end of the first transverse reinforcing rib is close to the second end of the shell; the timing cover flange is arranged at the second end of the shell; the first end of the inclined reinforcing rib is connected with the first transverse reinforcing rib, and the second end of the inclined reinforcing rib is connected with the timing cover flange. The inclined reinforcing ribs are connected with the timing cover flange, so that the rigidity of the timing cover flange can be improved, the deformation amplitude of the timing cover flange is reduced, the problems of damage and oil leakage caused by large deformation of a joint surface of the timing cover are avoided, and meanwhile, the overall torsion resistance and bending resistance rigidity of the engine shell can be improved.

Description

Technical Field

[0001] The utility model generally relates to the technical field of engines, and more specifically to an engine housing, an engine and a vehicle. Background Art

[0002] In the prior art, the engine housing is usually provided with reinforcing ribs to enhance the torsional and bending rigidity of the housing and prevent the housing from deformation and cracking. The existing reinforcing ribs are often arranged in a non-standard manner, without fully considering the functions of the components of the housing, resulting in a chaotic arrangement of the reinforcing ribs and an unsatisfactory reinforcing effect.

[0003] A timing device is provided at one end of the engine, which includes: timing belt or chain, timing gear, tensioner, timing cover and other components. The timing cover is fixedly connected to the engine housing to cover and protect other components. A flange is provided at the end of the engine housing to mount the timing cover. Since the flange is located at the end of the engine housing, when the housing is deformed, the flange is easily deformed to a large extent, causing damage to the timing cover, oil leakage, and difficulty in normal disassembly and assembly of the timing cover, which brings inconvenience to repair and maintenance.

[0004] Therefore, it is necessary to provide an engine housing, an engine and a vehicle to at least partially solve the above problems. Utility Model Content

[0005] A series of simplified concepts are introduced in the utility model content section, which will be further described in detail in the detailed implementation section. The utility model content section of the utility model does not mean to attempt to define the key features and essential technical features of the technical solution claimed for protection, nor does it mean to attempt to determine the scope of protection of the technical solution claimed for protection.

[0006] In order to at least partially solve the above problems, the first aspect of the present invention provides an engine housing, comprising:

[0007] case;

[0008] a first transverse reinforcing rib, wherein the first transverse reinforcing rib extends from the first end of the shell toward the second end of the shell, wherein the first end of the first transverse reinforcing rib is close to the first end of the shell, and the second end of the first transverse reinforcing rib is close to the second end of the shell;

[0009] a timing cover flange, the timing cover flange being disposed at the second end of the housing;

[0010] An oblique reinforcing rib, wherein a first end of the oblique reinforcing rib is connected to the first transverse reinforcing rib, and a second end of the oblique reinforcing rib is connected to the timing cover flange.

[0011] Optionally, the number of the oblique reinforcing ribs is multiple, and / or

[0012] The first end of the oblique reinforcing rib is connected to the second end of the first transverse reinforcing rib, and the second end of the oblique reinforcing rib is connected to the timing cover flange.

[0013] Optionally, the timing cover flange further includes:

[0014] A lug structure, wherein the lug structure is arranged at the edge of the timing cover flange, the lug structure is provided with a threaded hole, and the threaded hole is used to install the timing cover, and the second end of the oblique reinforcement rib is connected to the lug structure.

[0015] Optionally, the housing comprises:

[0016] A cylinder barrel, the cylinder barrel being used to accommodate a piston;

[0017] a water jacket, the water jacket being arranged around the cylinder barrel;

[0018] A crankshaft hole, wherein the crankshaft hole is used to install the crankshaft, and the crankshaft hole is connected to the cylinder barrel.

[0019] Optionally, the engine housing further comprises:

[0020] A second transverse reinforcing rib is provided on the air inlet side of the shell, and a height of the second transverse reinforcing rib from the top of the cylinder barrel is equal to a depth of the water jacket.

[0021] Optionally, the engine housing further comprises:

[0022] A third transverse reinforcing rib is arranged on the air inlet side of the shell, and the height of the third transverse reinforcing rib from the top of the cylinder barrel is equal to the stroke of the piston in the cylinder barrel.

[0023] Optionally, the engine housing further comprises:

[0024] A fourth transverse reinforcing rib is arranged on the air intake side of the shell, and the height of the fourth transverse reinforcing rib from the top of the cylinder barrel is not greater than the height of the cylinder barrel.

[0025] Optionally, the engine housing further comprises:

[0026] A fifth transverse reinforcing rib is arranged on the air intake side of the shell, and a height of the fifth transverse reinforcing rib from the top of the cylinder barrel is equal to the difference between the distance from the center of the crankshaft hole to the top of the cylinder barrel and the radius of the crankshaft hole.

[0027] Optionally, the engine housing further comprises:

[0028] A sixth transverse reinforcing rib is arranged on the air intake side of the shell, and a height of the sixth transverse reinforcing rib from the top of the cylinder barrel is equal to the distance from the center of the crankshaft hole to the top of the cylinder barrel.

[0029] Optionally, the engine housing further comprises:

[0030] A first longitudinal reinforcing rib unit, wherein the first longitudinal reinforcing rib unit is arranged on the air intake side of the shell, and the first longitudinal reinforcing rib unit is connected to one or more of the second transverse reinforcing rib, the third transverse reinforcing rib, and the fourth transverse reinforcing rib on the shell.

[0031] Optionally, the engine housing further comprises:

[0032] A second longitudinal reinforcing rib unit, wherein the second longitudinal reinforcing rib unit is arranged on the air intake side of the shell, the second longitudinal reinforcing rib unit extends from the top of the cylinder barrel to the crankshaft hole on the shell, and the second longitudinal reinforcing rib unit constitutes an oil return passage.

[0033] Optionally, the engine housing further comprises:

[0034] An oil cooler mounting seat, the oil cooler mounting seat is arranged on the air intake side of the housing and is used to mount an oil cooler;

[0035] A first cylinder block high-pressure oil passage, the first cylinder block high-pressure oil passage is longitudinally arranged, and the first cylinder block high-pressure oil passage is connected to the oil cooler mounting seat;

[0036] The second cylinder block high pressure oil passage is disposed transversely and connected to the first cylinder block high pressure oil passage.

[0037] Optionally, the engine housing further comprises:

[0038] A third longitudinal reinforcing rib unit is arranged on the exhaust side of the shell, and the third longitudinal reinforcing rib unit extends from the top of the cylinder barrel to the crankshaft hole on the shell, and the third longitudinal reinforcing rib unit constitutes a crankcase ventilation channel.

[0039] Optionally, the first transverse reinforcement rib comprises:

[0040] A first reinforcing rib, wherein the first reinforcing rib is arranged on the exhaust side of the shell, the height of the first reinforcing rib from the top of the cylinder barrel is equal to the depth of the water jacket, and two or more oblique reinforcing ribs are arranged at the end of the first reinforcing rib.

[0041] Optionally, the first transverse reinforcement rib further comprises:

[0042] A second reinforcing rib, wherein the second reinforcing rib is arranged on the exhaust side of the shell, the height of the second reinforcing rib from the top of the cylinder barrel is equal to the stroke of the piston in the cylinder barrel, and two or more oblique reinforcing ribs are arranged at the end of the second reinforcing rib.

[0043] Optionally, the engine housing further comprises:

[0044] A seventh transverse reinforcing rib, the seventh transverse reinforcing rib being arranged on the exhaust side of the shell, the

[0045] The seventh transverse reinforcement rib is located on the housing between the cylinder barrel and the crankshaft hole.

[0046] Optionally, the engine housing further comprises:

[0047] An eighth transverse reinforcing rib is arranged on the exhaust side of the shell, a plurality of exhaust mounting hole seats are arranged on the exhaust side of the shell, and the eighth transverse reinforcing rib connects the plurality of exhaust mounting hole seats.

[0048] Optionally, the engine housing further comprises:

[0049] A ninth transverse reinforcing rib is arranged on the exhaust side of the shell, and the height of the ninth transverse reinforcing rib from the top of the cylinder barrel is equal to the distance from the center of the crankshaft hole to the top of the cylinder barrel.

[0050] A second aspect of the utility model provides an engine, comprising an engine housing according to any one of the above technical solutions.

[0051] A third aspect of the utility model provides a vehicle, comprising an engine according to any one of the above technical solutions.

[0052] According to an engine housing, an engine and a vehicle of the utility model, the engine housing is provided with transverse reinforcing ribs, and oblique reinforcing ribs are provided near the ends of the timing cover. The oblique reinforcing ribs are connected to the timing cover flange, which can improve the stiffness of the timing cover flange, reduce the deformation amplitude of the timing cover flange, avoid damage to the timing cover due to large deformation of the joint surface and oil leakage, and also can improve the overall torsional and bending stiffness of the engine housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0053] The following drawings of the embodiments of the present invention are used as part of the present invention for understanding the present invention. The drawings show the embodiments of the present invention and their descriptions, and are used to explain the principles of the present invention. In the drawings,

[0054] Figure 1 It is a front view of an engine housing according to a preferred embodiment of the utility model, and shows the air intake side of the engine housing;

[0055] Figure 2 It is a rear view of an engine housing according to a preferred embodiment of the utility model, showing the exhaust side of the engine housing;

[0056] Figure 3 is a three-dimensional view of an engine housing according to a preferred embodiment of the present utility model, showing the exhaust side of the engine housing;

[0057] Figure 4 It is a three-dimensional view of an engine housing according to a preferred embodiment of the utility model, showing half of the engine housing;

[0058] Figure 5 A top view of an engine housing according to a preferred embodiment of the present utility model;

[0059] Figure 6 for Figure 5 Section view along AA.

[0060] Description of reference numerals:

[0061] 100: Engine housing 101: Cylinder block

[0062] 102: Crankcase 11: Second transverse reinforcement rib

[0063] 12: Third transverse reinforcement rib 13: Fourth transverse reinforcement rib

[0064] 14: Fifth transverse reinforcement rib 15: Sixth transverse reinforcement rib

[0065] 16: The first reinforcing rib 161: The first oblique reinforcing rib

[0066] 162: Second oblique reinforcement rib 17: Second reinforcement rib

[0067] 171: The third oblique reinforcing rib 172: The fourth oblique reinforcing rib

[0068] 18: Seventh transverse reinforcement rib 19: Eighth transverse reinforcement rib

[0069] 20: Ninth transverse reinforcement rib 21: First longitudinal reinforcement rib

[0070] 22: Second longitudinal reinforcement rib 23: Third longitudinal reinforcement rib

[0071] 24: Fourth longitudinal reinforcement rib 31: Fifth longitudinal reinforcement rib

[0072] 32: Sixth longitudinal reinforcement rib 33: Seventh longitudinal reinforcement rib

[0073] 34: The eighth longitudinal reinforcement rib 40: Oil cooler mounting seat

[0074] 41: High-pressure oil passage of the first cylinder block 42: High-pressure oil passage of the second cylinder block

[0075] 51: Ninth longitudinal reinforcement rib 52: Tenth longitudinal reinforcement rib

[0076] 53: Eleventh longitudinal reinforcement 54: Twelfth longitudinal reinforcement

[0077] 55: Thirteenth longitudinal reinforcement 56: Fourteenth longitudinal reinforcement

[0078] 61: First cylinder barrel 62: Second cylinder barrel

[0079] 63: Third cylinder barrel 64: Fourth cylinder barrel

[0080] 65: Water jacket 66: Crankshaft hole

[0081] 70: Timing cover flange 71: Threaded hole

[0082] 72: Lug structure 80: Fifth oblique reinforcement rib

[0083] 90: Sixth oblique reinforcement rib 103: Exhaust installation hole seat DETAILED DESCRIPTION

[0084] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0085] In order to thoroughly understand the utility model, a detailed description will be provided in the following description. It should be understood that these embodiments are provided to make the disclosure of the utility model thorough and complete, and to fully convey the concepts of these exemplary embodiments to those of ordinary skill in the art. Obviously, the implementation of the embodiments of the utility model is not limited to the specific details familiar to those skilled in the art. The preferred embodiments of the utility model are described in detail below, but in addition to these detailed descriptions, the utility model may also have other embodiments.

[0086] Ordinal numbers such as "first" and "second" cited in the present invention are merely identifiers and do not have any other meanings, such as a specific order, etc. Moreover, for example, the term "first component" itself does not imply the existence of the "second component", and the term "second component" itself does not imply the existence of the "first component".

[0087] It should be noted that the terms "upper", "lower", "front", "back", "left", "right", "inside", "outside" and similar expressions used in the present invention are for illustrative purposes only and are not restrictive.

[0088] The utility model discloses an engine casing, an engine and a vehicle.

[0089] Now, exemplary embodiments according to the present invention will be described in more detail with reference to the accompanying drawings.

[0090] like Figure 1 , Figure 2 , Figure 3 As shown, in a preferred embodiment, the engine housing 100 includes: a housing, a first transverse reinforcement rib, a timing cover flange 70 and oblique reinforcement ribs;

[0091] The housing is the main structural component of the engine housing 100 and is the basis for setting up other components;

[0092] The first transverse reinforcing rib extends from the first end of the shell toward the second end of the shell; in the figure, the first end of the shell is end E, the second end of the shell is end F, the first end of the first transverse reinforcing rib is close to the first end of the shell, and the second end of the first transverse reinforcing rib is close to the second end of the shell;

[0093] The timing cover flange 70 is disposed at the second end of the housing; the second end of the housing needs to be installed with components such as a timing gear, a transmission belt or a transmission chain, and these components are located within the range of the timing cover flange 70;

[0094] The first end of the oblique reinforcing rib is connected to the first transverse reinforcing rib, and the second end of the oblique reinforcing rib is connected to the timing cover flange 70. The first end of the oblique reinforcing rib can be connected to a position near the middle of the first transverse reinforcing rib, or near the second end of the first transverse reinforcing rib, or to the second end of the first transverse reinforcing rib.

[0095] The first end of the shell may also be provided with a flange for mounting other covers.

[0096] The engine housing 100 in this embodiment is provided with transverse reinforcement ribs, and oblique reinforcement ribs are provided near the end of the timing cover. The oblique reinforcement ribs are connected to the timing cover flange. This can improve the stiffness of the timing cover flange and reduce the deformation amplitude of the timing cover flange, thereby avoiding damage to the timing cover due to large deformation of the joint surface and oil leakage problems. At the same time, it can also improve the overall torsional and bending stiffness of the engine housing.

[0097] In one embodiment, the number of the oblique reinforcing ribs is multiple, for example, more than two oblique reinforcing ribs are provided at the end of the first transverse reinforcing rib, and the more than two oblique reinforcing ribs are connected to the timing cover flange 70. By providing multiple oblique reinforcing ribs and connecting the timing cover flange 70 from multiple directions, the rigidity of the timing cover flange 70 can be further improved and the deformation amplitude of the timing cover flange 70 can be reduced.

[0098] Figure 2 The second ends of the first reinforcing rib 16 and the second reinforcing rib 17 are both connected to two oblique reinforcing ribs, and the two oblique reinforcing ribs are both connected to the timing cover flange 70.

[0099] In one embodiment, if Figure 2 , Figure 3 As shown, the first end of the oblique reinforcement rib is connected to the second end of the first transverse reinforcement rib, and the second end of the oblique reinforcement rib is connected to the timing cover flange 70 .

[0100] When there are multiple oblique reinforcing ribs, the first ends of the multiple oblique reinforcing ribs converge to the second end of the first transverse reinforcing rib, which can significantly improve the structural strength of the convergence position.

[0101] In one embodiment, if Figure 3 As shown, the timing cover flange 70 also includes:

[0102] The lug structure 72 is arranged at the edge of the timing cover flange 70, and the lug structure 72 is provided with a threaded hole 71, and the threaded hole 71 is used to install the timing cover, and the oblique reinforcing ribs are connected to the lug structure 72. The edge of the timing cover flange 70 is provided with a plurality of lug structures 72 and threaded holes 71, and the timing cover is connected and fixed with the threaded holes 71 by bolts. The oblique reinforcing ribs can also increase the rigidity of the lug structure 72 and reduce the deformation amplitude of the threaded holes 71 by connecting with the lug structure 72.

[0103] In one embodiment, if Figure 3 , Figure 4 , Figure 5 , Figure 6 As shown, the housing also includes:

[0104] Cylinder barrel, which is used to accommodate the piston. When the engine is running, the fuel burns in the cylinder barrel to drive the piston to move along the axial direction of the cylinder barrel to do work and output driving force outward. The fuel can be gasoline, diesel, alcohol, etc.

[0105] A water jacket 65 is provided around the cylinder barrel. Cooling water or other coolant circulates in the water jacket 65 to cool the cylinder barrel, thereby reducing the temperature of the cylinder barrel and extending the service life.

[0106] The crankshaft hole 66 is used to install the crankshaft, and the crankshaft hole 66 is connected to the cylinder barrel. The crankshaft hole 66 is used to install the crankshaft, and the crankshaft is connected to the piston through a connecting rod mechanism. The axial movement of the piston along the cylinder barrel can drive the crankshaft to rotate through the connecting rod mechanism to output driving force outward.

[0107] The shell in the figure can be divided into:

[0108] A cylinder body 101, wherein a cylinder barrel and a water jacket 65 are disposed in the cylinder body 101, wherein the cylinder barrel is used to accommodate a piston, and the water jacket 65 is disposed around the cylinder barrel;

[0109] The crankcase 102 is disposed below the cylinder block 101 . A crankshaft hole 66 is disposed in the crankcase 102 . The crankshaft hole 66 is used to install a crankshaft. The crankshaft hole 66 is connected to the cylinder barrel.

[0110] The cylinder block 101 may be provided with a plurality of cylinder barrels, for example, three, four or more cylinder barrels, for mounting a plurality of pistons. Figure 4 , Figure 5 As shown, the cylinder block 101 is provided with four cylinder barrels, namely a first cylinder barrel 61, a second cylinder barrel 62, a third cylinder barrel 63, and a fourth cylinder barrel 64. The cylinder block 101 and the crankcase 102 are manufactured in one piece.

[0111] In one embodiment, if Figure 1 , Figure 4 As shown, the engine housing 100 also includes:

[0112] The second transverse reinforcing rib 11 is arranged on the air inlet side of the housing. The height of the second transverse reinforcing rib 11 from the top of the cylinder barrel is L1, which is equal to the depth of the water jacket 65. The upper end opening of the water jacket 65 is located at the top of the cylinder barrel. The depth of the water jacket 65 is the distance from the top of the cylinder barrel to the bottom of the water jacket 65. The "equal" here can be completely equal, or substantially equal, or slightly deviated, all within the design range of L1.

[0113] The second transverse reinforcing rib 11 is arranged at the root of the water jacket 65. The stroke of the piston is S, which is the distance the piston moves from the bottom dead center to the top dead center in the cylinder (or from the top dead center to the bottom dead center). L1 / S is generally about 0.6. During the operation of the engine, under the action of thermal load, the root of the water jacket 65 is prone to stress concentration. Arranging reinforcing ribs at the root of the water jacket 65 can improve the root strength of the water jacket 65 outside the cylinder bore and improve the fatigue safety factor of the root of the water jacket 65. During the operation of the engine, the heat generated by the combustion of the fuel is basically transferred within 2 / 3 of the piston stroke. The upper part of the cylinder bore has a high thermal load and large thermal deformation. Therefore, arranging reinforcing ribs within this range can improve the deformation of the cylinder bore.

[0114] In one embodiment, if Figure 1 , Figure 4 As shown, the engine housing 100 also includes:

[0115] The third transverse reinforcing rib 12 is arranged on the air inlet side of the housing, and the height of the third transverse reinforcing rib 12 from the top of the cylinder barrel is L2, and L2 is equal to the stroke of the piston in the cylinder barrel. Here, equal can be completely equal, or substantially equal, or slightly deviated, all within the design range of L2.

[0116] The stroke of the piston is S, and L2 / S is generally about 1. The third transverse reinforcing rib 12 can ensure the rigidity of the cylinder barrel, improve the deformation of the cylinder bore, and improve the rigidity of the cylinder body 101.

[0117] In one embodiment, if Figure 1 , Figure 4 As shown, the engine housing 100 further includes:

[0118] The fourth transverse reinforcing rib 13 is arranged on the air inlet side of the shell, and the height between the fourth transverse reinforcing rib 13 and the top of the cylinder barrel is L3, and L3 is not greater than the height of the cylinder barrel.

[0119] The fourth transverse reinforcing rib 13 is arranged above the main oil passage. Since a plurality of mounting points are arranged on the main oil passage and the mounting surface is relatively high, adding transverse reinforcing ribs can improve the rigidity of the mounting points and also improve the rigidity of the cylinder block 101 .

[0120] In one embodiment, if Figure 1 , Figure 4 As shown, the engine housing 100 further includes:

[0121] The fifth transverse reinforcing rib 14 is arranged on the air intake side of the housing, and the height of the fifth transverse reinforcing rib 14 from the top of the cylinder barrel is L4, which is equal to the difference between the distance from the center of the crankshaft hole 66 to the top of the cylinder barrel and the radius of the crankshaft hole 66. Here, "equal" can be completely equal, or substantially equal, or slightly deviated, all within the design range of L4.

[0122] The fifth transverse reinforcing rib 14 is arranged above the crankshaft hole 66. The distance L4 from the fifth transverse reinforcing rib 14 to the top of the cylinder barrel is related to the diameter of the crankshaft hole 66, L4 = the distance from the center of the crankshaft hole to the top surface of the cylinder barrel - the radius of the crankshaft hole. The fifth transverse reinforcing rib 14 can improve the rigidity of the periphery of the crankshaft hole 66.

[0123] In one embodiment, if Figure 1 , Figure 4 As shown, the engine housing 100 further includes:

[0124] The sixth transverse reinforcing rib 15 is arranged on the air intake side of the housing, and the height of the sixth transverse reinforcing rib 15 from the top of the cylinder barrel is L5, which is equal to the distance from the center of the crankshaft hole 66 to the top of the cylinder barrel. Here, "equal" can be completely equal, or substantially equal, or slightly deviated, all within the design range of L5.

[0125] The sixth transverse reinforcing rib 15 is arranged at the center of the crankshaft hole 66, and the distance L5 from the top of the cylinder barrel is equal to the distance from the center of the crankshaft hole to the top of the cylinder barrel. The sixth transverse reinforcing rib 15 can improve the rigidity around the crankshaft hole 66, weaken the crankshaft vibration transmission, and improve the overall torsional and bending rigidity of the engine housing 100.

[0126] During engine operation, most of the vibration generated by the movement of the cylinder piston connecting rod is transmitted to the outside through the crankshaft hole. Arranging reinforcing ribs around the crankshaft hole 66 can effectively increase the rigidity of the crankcase 102, weaken the vibration transmission path, and improve the overall NVH performance of the engine.

[0127] The above-mentioned transverse reinforcement ribs can be used to improve the torsional and bending stiffness of the engine housing 100 and improve the deformation of the cylinder hole and crankshaft hole; the thickness of the transverse reinforcement rib is generally 5mm, and the height protruding from the housing is as high as possible. The protruding height of the transverse reinforcement rib must take into account the protruding height of the flanges at the first and second ends of the housing, and is related to the protruding height of the passing installation point, which is generally about 3mm lower than the protruding height of the installation point. The protruding height of the transverse reinforcement rib is generally not less than 40mm.

[0128] In one embodiment, if Figure 1 As shown, the engine housing 100 further includes:

[0129] The first longitudinal reinforcing rib unit is arranged on the air intake side of the shell, and the first longitudinal reinforcing rib unit is connected to one or more of the second transverse reinforcing rib 11, the third transverse reinforcing rib 12, and the fourth transverse reinforcing rib 13 on the shell.

[0130] The first longitudinal reinforcing rib unit includes at least one of the following longitudinal reinforcing ribs: a first longitudinal reinforcing rib 21 , a second longitudinal reinforcing rib 22 , a third longitudinal reinforcing rib 23 , and a fourth longitudinal reinforcing rib 24 .

[0131] The first longitudinal reinforcement rib 21 connects the second transverse reinforcement rib 11, the third transverse reinforcement rib 12 and the fourth transverse reinforcement rib 13, the second longitudinal reinforcement rib 22 connects the second transverse reinforcement rib 11 and the third transverse reinforcement rib 12, the third longitudinal reinforcement rib 23 connects the second transverse reinforcement rib 11 and the third transverse reinforcement rib 12, and the fourth longitudinal reinforcement rib 24 connects the third transverse reinforcement rib 12.

[0132] The longitudinal reinforcing ribs can improve the rigidity of the outer side of the cylinder bore of the cylinder block 101. The thickness of the longitudinal reinforcing ribs is generally 5 mm, and the height protruding from the shell is generally not less than 40 mm.

[0133] In one embodiment, the engine housing 100 further includes:

[0134] The second longitudinal reinforcing rib unit is arranged on the air intake side of the shell, and the second longitudinal reinforcing rib unit extends from the top of the cylinder barrel to the crankshaft hole 66 on the shell. The second longitudinal reinforcing rib unit can constitute an oil return passage.

[0135] The second longitudinal reinforcing rib unit includes at least one of the following longitudinal reinforcing ribs: the fifth longitudinal reinforcing rib 31, the sixth longitudinal reinforcing rib 32, the seventh longitudinal reinforcing rib 33, and the eighth longitudinal reinforcing rib 34. Channels are arranged inside these longitudinal reinforcing ribs to form oil return channels for returning lubricating oil (engine oil).

[0136] The oil return channel is set between the two cylinder barrels and is also located outside the threaded hole of the cylinder head. The fifth longitudinal reinforcing rib 31 is set outside the threaded hole of the cylinder head near the front end of cylinder 1, the sixth longitudinal reinforcing rib 32 is set between cylinders 1 and 2, the seventh longitudinal reinforcing rib 33 is set between cylinders 2 and 3, and the eighth longitudinal reinforcing rib 34 is set between cylinders 3 and 4. The eighth longitudinal reinforcing rib 34 is located near the top surface of the cylinder body 101, and its contour is enlarged. The upper part of the contour simultaneously includes the outside of the threaded hole of the cylinder head near the rear end of cylinder 4. The contours of each oil return channel at the top surface are shown in FIG. Figure 4 , Figure 5 The oil return passage can also improve the rigidity of the cylinder body 101 .

[0137] Some mounting holes are arranged between the fifth longitudinal reinforcing rib 31 and the sixth longitudinal reinforcing rib 32 of the oil return passage, and between the sixth longitudinal reinforcing rib 32 and the seventh longitudinal reinforcing rib 33. These holes are connected by longitudinal and transverse ribs to improve the overall torsional and bending stiffness of the engine housing 100.

[0138] In one embodiment, if Figure 1 , Figure 4 As shown, the engine housing 100 further includes:

[0139] The oil cooler mounting seat 40 is arranged on the air intake side of the housing and is used to mount the oil cooler; the oil cooler mounting seat 40 is similar to a maze shape and has inclined reinforcing ribs inside;

[0140] A first cylinder block high pressure oil passage 41, which is disposed longitudinally and connected to an oil cooler mounting seat 40;

[0141] The second cylinder block high pressure oil passage 42 is disposed transversely and is connected to the first cylinder block high pressure oil passage 41 .

[0142] The first cylinder block high pressure oil passage 41 is disposed between the seventh longitudinal reinforcing rib 33 and the eighth longitudinal reinforcing rib 34, and the oil cooler mounting seat 40 is also basically disposed between the seventh longitudinal reinforcing rib 33 and the eighth longitudinal reinforcing rib 34. The first cylinder block high pressure oil passage 41 penetrates from the bottom to the oil cooler mounting seat 40, and the combination of the two can improve the connection strength of the outside of the crankcase 102 and increase the overall torsional and bending rigidity of the engine housing 100.

[0143] The second cylinder block high pressure oil passage 42 is connected to the first cylinder block high pressure oil passage 41 to form an “L”-shaped reinforcement rib, which can increase the overall torsional and bending rigidity of the engine housing 100 .

[0144] In one embodiment, if Figure 2 , Figure 3 As shown, the engine housing 100 further includes:

[0145] The third longitudinal reinforcing rib unit is arranged on the exhaust side of the housing, and the third longitudinal reinforcing rib unit extends from the top of the cylinder barrel to the crankshaft hole 66 on the housing, and the third longitudinal reinforcing rib unit can constitute a crankcase ventilation channel. Channels are arranged inside these longitudinal reinforcing ribs, which can constitute a return ventilation channel for intake or exhaust of the cylinder barrel.

[0146] In one embodiment, if Figure 2 , Figure 3 As shown, the first transverse reinforcement rib also includes:

[0147] The first reinforcing rib 16 is arranged on the exhaust side of the shell. The height of the first reinforcing rib 16 from the top of the cylinder barrel is L6, which is equal to the depth of the water jacket 65. Two or more oblique reinforcing ribs are arranged at the end of the first reinforcing rib 16. Here, "equal" can be completely equal, or substantially equal, with a slight deviation, all within the design range of L6. The first reinforcing rib 16 can be slightly lower than the second transverse reinforcing rib 11, and L6 is greater than L1.

[0148] In the figure, two oblique reinforcing ribs are arranged at the end of the first reinforcing rib 16, namely the first oblique reinforcing rib 161 and the second oblique reinforcing rib 162, forming a Y-shaped reinforcing rib structure, which increases the rigidity of the timing cover installation position and can also increase the rigidity of the cylinder body 101 at the same time.

[0149] In one embodiment, if Figure 2 , Figure 3 As shown, the first transverse reinforcement rib also includes:

[0150] The second reinforcing rib 17 is arranged on the exhaust side of the shell. The height of the second reinforcing rib 17 from the top of the cylinder barrel is L7, which is equal to the stroke of the piston in the cylinder barrel. Two or more oblique reinforcing ribs are arranged at the end of the second reinforcing rib 17. Here, "equal" can be completely equal, or basically equal, with a slight deviation, all within the design range of L7. The second reinforcing rib 17 can be slightly lower than the third transverse reinforcing rib 12, and L7 is greater than L2.

[0151] The end of the second reinforcing rib 17 in the figure is provided with two oblique reinforcing ribs, namely the third oblique reinforcing rib 171 and the fourth oblique reinforcing rib 172, forming a Y-shaped reinforcing rib structure, which increases the rigidity of the timing cover installation position and can also increase the rigidity of the cylinder body 101 at the same time.

[0152] In one embodiment, if Figure 2 , Figure 3 As shown, the engine housing 100 also includes:

[0153] The seventh transverse reinforcing rib 18 is disposed on the exhaust side of the housing. The seventh transverse reinforcing rib 18 is located between the cylinder barrel and the crankshaft hole 66 on the housing.

[0154] The height of the seventh transverse reinforcing rib 18 from the top of the cylinder barrel is L8, and L8 is greater than the height of the cylinder barrel. The seventh transverse reinforcing rib 18 can be slightly lower than the fourth transverse reinforcing rib 13, and L8 is greater than L3.

[0155] The seventh transverse reinforcing rib 18 is located between the lower part of the cylinder barrel and the crankshaft hole 66, which can increase the rigidity of the crankcase 102 and simultaneously improve the rigidity of the cylinder body 101. The distance from the top surface of the cylinder barrel can be calculated by the length of the cylinder barrel and the position of the crankshaft hole; the height protruding from the shell is generally between 10-15mm, and the thickness is generally 5mm.

[0156] In one embodiment, if Figure 2 , Figure 3 As shown, the engine housing 100 also includes:

[0157] The eighth transverse reinforcing rib 19 is arranged on the exhaust side of the housing, and a plurality of exhaust mounting hole seats 103 are arranged on the exhaust side of the housing. The eighth transverse reinforcing rib 19 connects the plurality of exhaust mounting hole seats 103, and can improve the overall torsional and bending rigidity of the engine housing 100. The exhaust mounting hole seats 103 are provided with threaded holes for installing an exhaust device, such as an exhaust pipe.

[0158] The eighth transverse reinforcing rib 19 may be slightly lower than the fifth transverse reinforcing rib 14 , and the height of the eighth transverse reinforcing rib 19 from the top of the cylinder barrel is L9 , and L9 is greater than L4 .

[0159] In one embodiment, if Figure 2 , Figure 3 As shown, the engine housing 100 also includes:

[0160] The ninth transverse reinforcing rib 20 is arranged on the exhaust side of the housing. The height of the ninth transverse reinforcing rib 20 from the top of the cylinder barrel is L10, and L10 is equal to the distance from the center of the crankshaft hole 66 to the top of the cylinder barrel. Here, equal can be completely equal, or substantially equal, or slightly deviated, all within the design range of L10. The ninth transverse reinforcing rib 20 can be slightly lower than the sixth transverse reinforcing rib 15, and L10 is greater than L5.

[0161] The ninth transverse reinforcing rib 20 has the same height as the sixth transverse reinforcing rib 15, and both are located at the center of the crankshaft hole 66. The distance L10 from the top surface of the cylinder barrel is equal to the distance from the center of the crankshaft hole 66 to the top of the cylinder barrel. The ninth transverse reinforcing rib 20 can increase the rigidity around the crankshaft hole 66, weaken the transmission of crankshaft vibration, and improve the overall torsional and bending rigidity of the engine housing 100.

[0162] In one embodiment, if Figure 1 , Figure 2 , Figure 3 As shown, the engine housing 100 also includes:

[0163] A fifth oblique reinforcing rib 80, which is disposed on the air intake side of the housing and is located on the crankcase 102;

[0164] The sixth oblique reinforcing rib 90 is disposed on the exhaust side of the housing and is located on the crankcase 102 .

[0165] A plurality of the fifth oblique reinforcing ribs 80 and the sixth oblique reinforcing ribs 90 are provided, which can significantly improve the rigidity of the crankcase 102 .

[0166] Diagonal reinforcing ribs may be further provided at other positions of the engine housing 100 to improve the overall torsional and bending rigidity of the engine housing 100 .

[0167] An embodiment of the present utility model further provides an engine, comprising the engine housing 100 according to any one of the above embodiments.

[0168] An embodiment of the utility model further provides a vehicle, comprising the engine described in any one of the above embodiments.

[0169] The utility model provides an engine housing, an engine and a vehicle, which have the following characteristics:

[0170] Transverse reinforcement ribs are provided on the intake and exhaust sides of the cylinder block. The height of the transverse reinforcement ribs is determined by specific design calculations to improve the torsional and bending rigidity of the engine housing.

[0171] Specific transverse reinforcement ribs are arranged at the root of the cylinder water jacket, the lower edge of the cylinder hole, the upper part of the crankshaft hole and the center of the crankshaft hole. Specific transverse reinforcement ribs are arranged at specific positions to improve the deformation of the cylinder hole and improve the overall torsional and bending stiffness of the engine housing.

[0172] The transverse reinforcement rib is divided into two ribs at a specific position near the end of the timing cover, which are respectively connected to the timing cover mounting holes, thereby improving the rigidity of the timing cover mounting holes and simultaneously improving the overall torsional and bending rigidity of the engine housing;

[0173] By arranging the oil cooler at a specific position and combining it with the direction of the oil passage, the rigidity of the crankcase can be improved;

[0174] The longitudinal reinforcement ribs are set in the middle of the cylinder bore and adopt a through-hole design to improve the rigidity of the cylinder barrel;

[0175] The cylinder block functional structure setting is integrated with the reinforcement rib setting, and the cylinder block function is integrated with the cylinder block stiffness, so as to achieve twice the result with half the effort, which can greatly improve the overall torsional and bending stiffness of the engine casing and improve the cylinder block mode.

[0176] The cylinder oil return channel is integrated with the longitudinal reinforcement rib and arranged outside the threaded hole of the cylinder head to improve the overall torsional and bending rigidity of the engine housing.

[0177] The crankcase ventilation passage is integrated with the longitudinal reinforcement ribs and arranged on both sides of the cylinder head threaded holes to improve the torsional and bending rigidity of the engine housing.

[0178] The processes and steps described in all the above preferred embodiments are only examples. Unless adverse effects occur, various processing operations can be performed in a sequence different from the sequence of the above processes. The sequence of steps in the above processes can also be increased, merged or deleted according to actual needs.

[0179] In understanding the scope of the present invention, the term "comprising" and its derivatives as used herein are intended to be open terms, which specify the existence of the recorded features, elements, components, groups, wholes and / or steps, but do not exclude the existence of other unrecorded features, elements, components, groups, wholes and / or steps. This concept also applies to words with similar meanings, such as the terms "including", "having" and their derivatives.

[0180] The terms "attached" or "attached" as used herein include: a configuration where an element is directly secured to another element by directly securing the element to the other element; a configuration where an element is indirectly secured to another element by securing the element to an intermediate member which in turn is secured to the other element; and a configuration where one element is integral with the other element, i.e., one element is substantially a part of the other element. This definition also applies to words with similar meanings such as "connect," "connect," "couple," "mount," "bond," "fix," and their derivatives. Finally, terms of degree such as "substantially," "approximately," and "approximately" as used herein represent the amount of deviation that modifies the term such that the end result will not be significantly changed.

[0181] Unless otherwise defined, the technical and scientific terms used herein have the same meaning as those generally understood by those skilled in the art of the present invention. The terms used herein are only for describing specific implementation purposes and are not intended to limit the present invention. The features described herein in one embodiment may be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise specified in the other embodiment.

[0182] The utility model has been described through the above-mentioned embodiments, but it should be understood that the above-mentioned embodiments are only for the purpose of example and description, and are not intended to limit the utility model to the scope of the described embodiments. In addition, it can be understood by those skilled in the art that the utility model is not limited to the above-mentioned embodiments, and more variations and modifications can be made according to the teachings of the utility model, and these variations and modifications all fall within the scope of protection claimed by the utility model.

Claims

1. An engine housing, characterized in that: include: case; a first transverse reinforcing rib, wherein the first transverse reinforcing rib extends from the first end of the shell toward the second end of the shell, wherein the first end of the first transverse reinforcing rib is close to the first end of the shell, and the second end of the first transverse reinforcing rib is close to the second end of the shell; A timing cover flange (70), the timing cover flange (70) being disposed at the second end of the housing; An oblique reinforcing rib, wherein a first end of the oblique reinforcing rib is connected to the first transverse reinforcing rib, and a second end of the oblique reinforcing rib is connected to the timing cover flange (70).

2. The engine housing according to claim 1, characterized in that: The number of the oblique reinforcing ribs is multiple, and / or The first end of the oblique reinforcing rib is connected to the second end of the first transverse reinforcing rib, and the second end of the oblique reinforcing rib is connected to the timing cover flange (70).

3. The engine housing according to claim 1, characterized in that: The timing cover flange (70) further includes: A lug structure (72), wherein the lug structure (72) is arranged on the edge of the timing cover flange (70), the lug structure (72) is provided with a threaded hole (71), and the threaded hole (71) is used to install the timing cover, and the second end of the oblique reinforcement rib is connected to the lug structure (72).

4. The engine housing according to claim 1, characterized in that: The housing comprises: A cylinder barrel, the cylinder barrel being used to accommodate a piston; A water jacket (65), the water jacket (65) being arranged around the cylinder barrel; A crankshaft hole (66), wherein the crankshaft hole (66) is used to install a crankshaft, and the crankshaft hole (66) is connected to the cylinder barrel.

5. The engine housing according to claim 4, characterized in that: Also includes: A second transverse reinforcing rib (11), wherein the second transverse reinforcing rib (11) is arranged on the air intake side of the housing, and the height of the second transverse reinforcing rib (11) from the top of the cylinder barrel is L1, and the L1 is equal to the depth of the water jacket (65).

6. The engine housing according to claim 5, characterized in that: Also includes: A third transverse reinforcing rib (12), wherein the third transverse reinforcing rib (12) is arranged on the air inlet side of the shell, and the height of the third transverse reinforcing rib (12) from the top of the cylinder barrel is L2, and the L2 is equal to the stroke of the piston in the cylinder barrel.

7. The engine housing according to claim 6, characterized in that: Also includes: A fourth transverse reinforcing rib (13), wherein the fourth transverse reinforcing rib (13) is arranged on the air intake side of the shell, and the height of the fourth transverse reinforcing rib (13) from the top of the cylinder barrel is L3, and the L3 is not greater than the height of the cylinder barrel.

8. The engine housing according to claim 4, characterized in that: Also includes: A fifth transverse reinforcing rib (14), wherein the fifth transverse reinforcing rib (14) is arranged on the air intake side of the housing, and the height of the fifth transverse reinforcing rib (14) from the top of the cylinder barrel is L4, and the L4 is equal to the difference between the distance from the center of the crankshaft hole (66) to the top of the cylinder barrel and the radius of the crankshaft hole (66).

9. The engine housing according to claim 4, characterized in that: Also includes: A sixth transverse reinforcing rib (15), wherein the sixth transverse reinforcing rib (15) is arranged on the air intake side of the housing, and the height of the sixth transverse reinforcing rib (15) from the top of the cylinder barrel is L5, and L5 is equal to the distance from the center of the crankshaft hole (66) to the top of the cylinder barrel.

10. The engine housing according to claim 7, characterized in that: Also includes: A first longitudinal reinforcing rib unit, wherein the first longitudinal reinforcing rib unit is arranged on the air intake side of the shell, and the first longitudinal reinforcing rib unit is connected to one or more of the second transverse reinforcing rib (11), the third transverse reinforcing rib (12), and the fourth transverse reinforcing rib (13) on the shell.

11. The engine housing according to claim 4, characterized in that Also includes: A second longitudinal reinforcing rib unit is provided on the air intake side of the housing, the second longitudinal reinforcing rib unit extends from the top of the cylinder barrel to the crankshaft hole (66) on the housing, and the second longitudinal reinforcing rib unit constitutes an oil return passage.

12. The engine housing according to claim 4, characterized in that Also includes: An oil cooler mounting seat (40), the oil cooler mounting seat (40) being arranged on an air intake side of the housing and being used for mounting an oil cooler; A first cylinder block high-pressure oil passage (41), the first cylinder block high-pressure oil passage (41) being arranged longitudinally, and the first cylinder block high-pressure oil passage (41) being connected to the oil cooler mounting seat (40); A second cylinder block high pressure oil passage (42), wherein the second cylinder block high pressure oil passage (42) is arranged transversely, and the second cylinder block high pressure oil passage (42) is connected to the first cylinder block high pressure oil passage (41).

13. The engine housing according to claim 4, characterized in that Also includes: A third longitudinal reinforcing rib unit is provided on the exhaust side of the shell, the third longitudinal reinforcing rib unit extends from the top of the cylinder barrel to the crankshaft hole (66) on the shell, and the third longitudinal reinforcing rib unit constitutes a crankcase ventilation channel.

14. The engine housing according to claim 4, characterized in that The first transverse reinforcement rib comprises: A first reinforcing rib (16), wherein the first reinforcing rib (16) is arranged on the exhaust side of the shell, the height of the first reinforcing rib (16) from the top of the cylinder barrel is L6, and the L6 is equal to the depth of the water jacket (65), and two or more oblique reinforcing ribs are arranged at the end of the first reinforcing rib (16).

15. The engine housing according to claim 4, characterized in that The first transverse reinforcement rib further comprises: A second reinforcing rib (17), wherein the second reinforcing rib (17) is arranged on the exhaust side of the shell, the height of the second reinforcing rib (17) from the top of the cylinder barrel is L7, and the L7 is equal to the stroke of the piston in the cylinder barrel, and two or more oblique reinforcing ribs are arranged at the end of the second reinforcing rib (17).

16. The engine housing according to claim 4, characterized in that Also includes: A seventh transverse reinforcing rib (18), the seventh transverse reinforcing rib (18) being arranged on the exhaust side of the housing, the seventh transverse reinforcing rib (18) being located between the cylinder barrel and the crankshaft hole (66) on the housing.

17. The engine housing according to claim 4, characterized in that Also includes: An eighth transverse reinforcing rib (19), wherein the eighth transverse reinforcing rib (19) is arranged on the exhaust side of the shell, a plurality of exhaust mounting hole seats (103) are arranged on the exhaust side of the shell, and the eighth transverse reinforcing rib (19) connects the plurality of exhaust mounting hole seats (103).

18. The engine housing according to claim 4, characterized in that Also includes: A ninth transverse reinforcing rib (20), wherein the ninth transverse reinforcing rib (20) is disposed on the exhaust side of the housing, and the height of the ninth transverse reinforcing rib (20) from the top of the cylinder barrel is L10, and L10 is equal to the distance from the center of the crankshaft hole (66) to the top of the cylinder barrel.

19. An engine, characterized in that: Comprising an engine housing according to any one of claims 1-18.

20. A vehicle, characterized in that: Comprising an engine according to claim 19.

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