Oil pan, engine, hybrid assembly and vehicle

Abstract

The invention discloses an oil pan, an engine, a hybrid assembly and a vehicle, relates to the technical field of engines, and is used for solving the problem that in the prior art, a communication mode of a multi-cylinder engine and a cooling liquid pipeline is not beneficial to compactness and miniaturization of the engine. The oil pan is provided with a cooling liquid channel, a liquid outlet communicated with the cooling liquid channel is formed in the oil pan, and the liquid outlet is used for being communicated with a machine body.

Description

[0001] This invention claims the priority of a Chinese patent application titled "Engine and Vehicle with the Same" with the application number 202311760055.8 and filed with the National Intellectual Property Administration on December 19, 2023. The entire content of which is incorporated herein by reference. Technical Field

[0002] This application relates to the technical field of engines, and particularly to an oil pan, an engine, a hybrid assembly, and a vehicle. Background Art

[0003] Currently, "high performance, low fuel consumption, lightweight, and compactness" are the new requirements put forward by the world in the field of automotive engines today, and also the future development trend of engines. "High performance" means that performance parameters such as the power, torque, and liters power of the engine need to be continuously improved. "Lightweight" means that the use of cylinder block materials such as aluminum alloy and magnesium alloy is becoming increasingly popular. "Compactness" means that the engine structure needs to develop towards aspects such as integration, modularization, and reduced cylinder center distance. The requirements for the engine cooling system are getting higher and higher due to the needs of high performance and compactness. High performance will cause the temperature between adjacent cylinders of the engine to be very high. Without a reasonable cooling system to ensure the reduction of the temperature between the cylinder blocks, a series of problems such as increased cylinder bore deformation, high oil consumption, high piston air leakage, and even cylinder scoring will occur.

[0004] In response to this, in the related art, a cooling device is provided in the cylinder block, and a coolant pipeline communicating with the cooling device is provided outside the engine. The coolant pipeline can provide coolant for the cooling device, thereby taking away the heat of the cylinder block to achieve the cooling of the cylinder block.

[0005] However, when the engine is a multi-cylinder engine, the coolant pipeline needs to be provided with multiple branch pipelines, which are respectively communicated with the cooling devices in each cylinder block. In this way, undoubtedly, the volume occupied by the engine and the coolant pipeline will be relatively large, which is not conducive to the compactness and miniaturization of the engine. Summary of the Invention

[0006] This application provides an oil pan, an engine, a hybrid assembly, and a vehicle, which are used to solve the problem that the connection method between the multi-cylinder engine and the coolant pipeline in the prior art is not conducive to the compactness and miniaturization of the engine.

[0007] To achieve the above object, this application adopts the following technical solutions:

[0008] In the first aspect, this application provides an oil pan, which is provided with a coolant channel, and an outlet communicating with the coolant channel is provided on the oil pan. The outlet is used to communicate with the engine block.

[0009] In the embodiments of the present application, a coolant channel is provided on the oil pan, and a liquid outlet communicating with the coolant channel is provided. In this way, the coolant in the coolant channel can flow into the engine block through the liquid outlet. Then, when the engine is a multi-cylinder engine, the cooling channels in multiple cylinders can all communicate with the liquid outlet. Thus, the coolant supply pipeline connected to the engine only needs to communicate with the coolant channel to achieve communication with the cooling channels in multiple cylinders. Compared with the related art where multiple branch pipelines are provided and respectively communicate with the cooling channels in each cylinder, the embodiments of the present application can reduce the number of pipelines connected to the engine, thereby reducing the body space occupied by the pipelines, which is beneficial to the compactness and miniaturization of the engine. In addition, since the oil pan is arranged below the cylinder block, the flow rate of the coolant in the coolant channel towards the cooling channel is relatively slow, and thus the flow rate of the coolant flowing in the cooling channel is also relatively slow. In this way, it can ensure that the coolant in the cooling channel fully exchanges heat with the cylinder block, improving the heat dissipation effect of the cylinder block.

[0010] In addition, since the lubricating oil is transported to each component that needs lubrication in the engine by the oil pump and then flows back to the oil pan. During this process, the engine oil will absorb the heat of the engine components. In the embodiments of the present application, by providing a coolant channel on the oil pan, the coolant can exchange heat with the lubricating oil on the oil pan when flowing in the coolant channel, thereby having a certain cooling effect on the lubricating oil in the oil pan.

[0011] In some embodiments of the present application, the liquid outlet includes a first liquid outlet and a second liquid outlet both communicating with the coolant channel, and both the first liquid outlet and the second liquid outlet are used to communicate with the engine block. In this way, the coolant in the coolant channel can flow into different cylinders of the engine block through the first liquid outlet and the second liquid outlet respectively. Thus, the coolant supply pipeline connected to the engine only needs to communicate with the coolant channel to achieve communication with multiple cylinders. Compared with the related art where multiple branch pipelines are provided and respectively communicate with the cooling devices in each cylinder, the embodiments of the present application can reduce the number of pipelines connected to the engine, thereby reducing the body space occupied by the pipelines, which is beneficial to the compactness and miniaturization of the engine.

[0012] In some embodiments of the present application, a liquid inlet communicating with the coolant channel is provided on the oil pan. In this way, the coolant pipeline only needs to communicate with the liquid inlet on the oil pan to achieve communication with multiple cylinders. The coolant pipeline only needs to be assembled with the oil pan once, reducing the assembly time required and lowering the production cost.

[0013] In some embodiments of the present application, the liquid outlet further includes a third liquid outlet connected to the coolant channel, and the third liquid outlet is used to connect to the supercharger. In this way, the coolant in the coolant channel can also flow into the supercharger through the third liquid outlet, and exchange heat with the supercharger to cool the supercharger. In this way, there is no need to set up an additional channel to provide coolant for the supercharger, which reduces the difficulty of engine production and manufacturing and improves the production efficiency of the engine.

[0014] In some embodiments of the present application, the oil pan is provided with a liquid inlet connected to the coolant channel; the coolant channel includes a first channel and a second channel, the first channel is connected between the second channel and the liquid inlet, the first liquid outlet is connected to the first channel, and the second liquid outlet is connected to the second channel. In this way, by connecting the first channel and the second channel, it can be ensured that the coolant channel is connected to the liquid inlet, the first liquid outlet, and the second liquid outlet.

[0015] In some embodiments of the present application, the extension direction of the first channel is inconsistent with the extension direction of the second channel. In this way, by connecting two channels with different extension directions, the flow direction of the coolant is changed, and it can be ensured that when the liquid inlet and the liquid outlet are set at the target position, the liquid inlet and the liquid outlet can be connected through the first channel and the second channel with different extension directions.

[0016] In some embodiments of the present application, a coolant pipeline is provided on the oil pan, and a coolant channel is formed in the coolant pipeline. In this way, it is only necessary to install the coolant pipeline on the oil pan without improving the structure of the oil pan. In this way, it is not necessary to re-mold the oil pan, thereby reducing production costs.

[0017] In some embodiments of the present application, the oil pan is provided with a liquid inlet connected to the coolant channel; the oil pan includes a top surface provided with an oil storage tank, a bottom surface arranged opposite to the top surface, and a side surface arranged around the oil storage tank; the liquid inlet is arranged on the side surface, and the liquid outlet is arranged on the top surface. Since the engine body is usually arranged above the oil pan, arranging the liquid outlet on the top surface can not only facilitate the connection between the engine body and the liquid outlet, but also reduce the length of the coolant channel on the oil pan, thereby reducing the production cost. Arranging the liquid inlet on the side surface can avoid the connection between the oil pan and other cooling components (such as the pump body) being limited when the motor is arranged on the side of the oil pan away from the engine body.

[0018] In some embodiments of the present application, a liquid inlet connected to a coolant channel is provided on the oil pan; the oil pan includes a top surface provided with an oil storage tank, a bottom surface arranged opposite to the top surface, and a side surface arranged around the oil storage tank; the liquid inlet is arranged on the top surface or the bottom surface, and the liquid outlet is arranged on the side surface or the bottom surface.

[0019] In some embodiments of the present application, along the direction from the liquid inlet to the second channel, the diameter of the first channel gradually decreases. In this way, along the direction from the liquid inlet to the second channel of the mold, the diameter of the mold gradually decreases. Thus, it is more convenient to take out the mold from the liquid inlet. In addition, when the coolant flows along the direction from the liquid inlet to the second channel, since the diameter of the first channel gradually decreases, the flow rate of the coolant in the first channel can be increased.

[0020] In some embodiments of the present application, the central axis of the liquid inlet is collinear with the central axis of the first channel. Thus, the liquid inlet is the casting outlet of the mold. Then, this casting outlet does not need to be blocked and can be directly used as the port communicating with the cooling pipeline, reducing the process of additionally opening a liquid inlet.

[0021] In some embodiments of the present application, a process hole is further provided on the oil pan, the process hole communicates with the second channel, the central axis of the process hole is collinear with the central axis of the second channel, and one end of the process hole facing away from the second channel penetrates through the oil pan.

[0022] In some embodiments of the present application, the process hole and the second liquid outlet are spaced apart and communicate with the second channel, and along the direction from the process hole to the second liquid outlet, the diameter of the second channel gradually decreases. In this way, along the direction from the process hole to the second liquid outlet of the mold, the diameter of the mold gradually decreases. Thus, it is more convenient to take out the mold from the process hole. In addition, when the coolant flows along the second channel, since the diameter of the second channel gradually decreases, the flow rate of the coolant in the second channel can be increased.

[0023] In some embodiments of the present application, the oil pan further includes a cover body, and the cover body is arranged at the process hole for blocking the process hole. Thus, it is possible to prevent the coolant from leaking from the process hole.

[0024] In some embodiments of the present application, an oil storage tank is formed on the oil pan, and at least a part of the coolant channel is arranged below the oil storage tank. Thus, by arranging the coolant channel below the oil storage tank, it is possible to prevent the coolant channel from being located above the oil outlet tank and affecting the demolding of the oil storage tank, facilitating the production and processing of the oil pan.

[0025] In a second aspect, the present application provides an engine, including a body and the oil pan described in the first aspect, the oil pan is located below the body; the body has a cooling channel, and the liquid outlet is communicated with the cooling channel.

[0026] In some embodiments of the present application, the engine block includes a first cylinder block and a second cylinder block. The cooling channels include a first cooling channel at least partially disposed within the first cylinder block and a second cooling channel at least partially disposed within the second cylinder block. The liquid outlet includes a first liquid outlet and a second liquid outlet both communicating with the coolant channel. The first liquid outlet communicates with the first cooling channel, and the second liquid outlet communicates with the second cooling channel. Thus, the coolant within the coolant channel can flow into the first cooling channel through the first liquid outlet and into the second cooling channel through the second liquid outlet respectively. In this way, the coolant supply pipeline connected to the engine only needs to communicate with the coolant channel to achieve communication with the first cooling channel and the second cooling channel. Compared with the related art where multiple branch pipelines are provided and are respectively connected to the cooling devices within each cylinder block, the embodiments of the present application can reduce the number of pipelines connected to the engine, thereby reducing the body space occupied by the pipelines, which is beneficial to the compactness and miniaturization of the engine.

[0027] In some embodiments of the present application, the engine block includes a first cylinder block and a second cylinder block. The cooling channels include a first cooling channel at least partially disposed within the first cylinder block and a second cooling channel at least partially disposed within the second cylinder block. The first cooling channel communicates with the second cooling channel. The liquid outlet includes a first liquid outlet communicating with the coolant channel, and the first liquid outlet communicates with the first cooling channel.

[0028] In some embodiments of the present application, the engine further includes a supercharger, and a cooling heat exchange pipeline is provided on the supercharger. A third liquid outlet communicating with the coolant channel is further provided on the oil pan, and the third liquid outlet communicates with the cooling heat exchange pipeline. In this way, the coolant within the coolant channel can also flow into the cooling heat exchange pipeline through the third liquid outlet to exchange heat with the supercharger so as to cool down the supercharger. Thus, there is no need to additionally provide a channel for supplying coolant to the supercharger, reducing the manufacturing difficulty of the engine and improving the production efficiency of the engine.

[0029] In some embodiments of the present application, an inlet is provided on the engine block. The engine further includes a water jacket, and the water jacket constitutes at least part of the cooling channels. At least part of the water jacket is disposed within the engine block, and the inlet communicates with the liquid outlet and the water jacket.

[0030] In some embodiments of the present application, the engine block includes a first cylinder block and a second cylinder block. The cooling channels include a first cooling channel at least partially disposed within the first cylinder block and a second cooling channel at least partially disposed within the second cylinder block. The liquid outlet includes a first liquid outlet and a second liquid outlet both communicating with the coolant channels. The first liquid outlet communicates with the first cooling channel, and the second liquid outlet communicates with the second cooling channel. The inlet includes a first inlet disposed on the first cylinder block and a second inlet disposed on the second cylinder block. The water jacket includes a first water jacket at least partially disposed within the first cylinder block and a second water jacket at least partially disposed within the second cylinder block. The first water jacket constitutes at least part of the first cooling channel, and the second water jacket constitutes at least part of the second cooling channel. The first inlet communicates with the first liquid outlet and the first water jacket, and the second inlet communicates with the second liquid outlet and the second water jacket.

[0031] In some embodiments of the present application, the engine block includes a first cylinder block and a second cylinder block. The cooling channels include a first cooling channel at least partially disposed within the first cylinder block and a second cooling channel at least partially disposed within the second cylinder block. The liquid outlet includes a first liquid outlet communicating with the coolant channels. The first liquid outlet communicates with the first cooling channel. The inlet includes a first inlet disposed on the first cylinder block and a second inlet disposed on the second cylinder block. The water jacket includes a first water jacket at least partially disposed within the first cylinder block and a second water jacket at least partially disposed within the second cylinder block. The first water jacket constitutes at least part of the first cooling channel, and the second water jacket constitutes at least part of the second cooling channel. The first inlet communicates with the first liquid outlet and the first water jacket. A first outlet communicating with the first water jacket is further disposed on the first cylinder block. The second inlet communicates with the first outlet and the second water jacket.

[0032] In some embodiments of the present application, the arrangement direction of the first cylinder block and the second cylinder block is a first direction, and the arrangement direction of the engine block and the oil pan is a second direction, and the first direction and the second direction are perpendicular to each other.

[0033] In a third aspect, an embodiment of the present application further provides a hybrid assembly, and the hybrid assembly includes an engine as described in the second aspect above.

[0034] In some embodiments of the present application, the hybrid assembly further includes a motor, and the oil pan is disposed between the motor and the first cylinder block and the second cylinder block.

[0035] In a fourth aspect, an embodiment of the present application further provides a vehicle, which includes the oil pan as described in the first aspect, or the engine as described in the second aspect, or the hybrid assembly as described in the third aspect.

[0036] It should be noted that the technical effects brought about by the implementation methods of the third and fourth aspects can refer to the technical effects brought about by the corresponding implementation methods in the first or second aspects, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0037] The accompanying drawings are used to provide a further understanding of the technical solution of the present invention and constitute a part of the specification. Together with the embodiments of the present application, they are used to explain the technical solution of the present invention and do not constitute a limitation on the technical solution of the present invention.

[0038] Figure 1 A schematic diagram of the structure of a vehicle provided in an embodiment of the present application;

[0039] Figure 2 A partial structural schematic diagram of a hybrid assembly provided in an embodiment of the present application;

[0040] Figure 3 A partial structural schematic diagram of an engine provided in an embodiment of the present application;

[0041] Figure 4 A schematic diagram of the structure of a cylinder block provided in an embodiment of the present application;

[0042] Figure 5 One of the top views of an oil pan provided in an embodiment of the present application;

[0043] Figure 6 Provided in the embodiments of this application Figure 5 Cross-sectional view along AA direction;

[0044] Figure 7 A bottom view of an oil pan provided in an embodiment of the present application;

[0045] Figure 8 This is a second top view of an oil pan provided in an embodiment of the present application.

[0046] Reference numerals:

[0047] 1000. Vehicles;

[0048] 100, body; 200, wheels; 300, hybrid assembly;

[0049] 10. Engine;

[0050] 11, machine body; 111, cylinder body; 1111, first cylinder body; 1111A, first inlet; 1112, second cylinder body; 1112A, second inlet;

[0051] 12. Oil pan; 12A. Bottom wall; 12B. First side wall; 12C. Second side wall; 12D. Third side wall; 12E. Fourth side wall; 120. Liquid outlet; 121. Cooling liquid channel; 1211. First channel; 1212. Second channel; 122. First liquid outlet; 123. Second liquid outlet; 124. Liquid inlet; 125. Third liquid outlet; 126. Oil storage tank; 127. Process hole; 128. Shunt area;

[0052] 13. Flow channel; 131. Cooling liquid pipeline;

[0053] 14. Cover body;

[0054] 20. Motor. Detailed implementation manners

[0055] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0056] It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relative position relationship and movement conditions between components in a specific posture (as shown in the accompanying drawings). If this specific posture changes, the directional indications will also change accordingly.

[0057] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise stated, the meaning of "a plurality" is two or more.

[0058] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "connected" and "connected" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific situations. In addition, when describing pipelines, the terms "connected" and "connected" used in the present application have the meaning of conducting. The specific meaning needs to be understood in combination with the context.

[0059] In the embodiments of the present application, words such as "exemplary" or "for example" are used to represent examples, illustrations or explanations. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present relevant concepts in a specific manner.

[0060] In the description of this specification, specific features, structures, materials or characteristics may be combined in a suitable manner in any one or more embodiments or examples.

[0061] The present application provides a vehicle 1000. The vehicle 1000 can be a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid vehicle, a fuel vehicle, etc. The vehicle 1000 can also be a sedan, a truck, a bus, a lorry, a trailer, etc.

[0062] As Figure 1 shown, Figure 1 is a schematic structural diagram of a vehicle provided by an embodiment of the present application. The vehicle 1000 includes a vehicle body 100 and wheels 200. The vehicle body 100 is for passengers to ride in and carry items, and the wheels 200 are installed below the vehicle body 100, for carrying the vehicle body 100 and capable of rolling on the road surface so that the vehicle 1000 can travel.

[0063] In some embodiments, the vehicle may further include a hybrid assembly 300 ( Figure 1 not shown in the figure), and the hybrid assembly 300 is arranged on the vehicle body 100. In a possible structural design, the hybrid assembly 300 can be a drive assembly, and the drive assembly is used to convert electrical energy or thermal energy into mechanical energy and transmit the mechanical energy to the wheels 200 to drive the wheels 200 of the vehicle 1000 to rotate so that the vehicle 1000 can travel.

[0064] In another possible structural design, the hybrid assembly 300 can also be a power generation assembly, and the power generation assembly is used to convert other forms of energy (such as fuel combustion, etc.) into electrical energy. The power generation assembly can transmit the electrical energy to the drive assembly so that the drive assembly drives the wheels 200 to rotate.

[0065] As Figure 2 shown, Figure 2 is a partial structural schematic diagram of a hybrid assembly provided by an embodiment of the present application. In a possible structural design, the hybrid assembly 300 can include an engine 10, and the engine 10 is an energy conversion device that can convert the thermal energy or other forms of energy generated by fuel combustion into mechanical energy, thereby driving the wheels 200 to rotate.

[0066] Among them, the engine 10 can be an internal combustion engine, an external combustion engine, a jet engine, etc., and the present application does not limit this.

[0067] In another possible structural design, the hybrid assembly 300 may include a motor 20, and the motor is used to convert electrical energy into mechanical energy to drive the wheels 200 to rotate.

[0068] In still another possible structural design, the vehicle 1000 is a hybrid vehicle, and the hybrid assembly 300 may include an engine 10 and a motor 20.

[0069] It should be noted that in a hybrid vehicle, the relative positions of the engine 10 and the motor 20 may be affected by the power transmission path of the hybrid assembly 300. To simplify the power transmission system, reduce energy loss or improve transmission efficiency, as Figure 2 shown, the engine 10 may be disposed above the motor 20.

[0070] Please refer to Figure 3 , Figure 3 , which shows a partial structural schematic diagram of an engine provided by an embodiment of the present application. The engine 10 may include a body 11 and an oil pan 12.

[0071] Among them, a coolant channel 121 ( Figure 3 not shown) is provided on the oil pan 12, and a liquid outlet 120 communicating with the coolant channel is provided on the oil pan, and the liquid outlet 120 is used to communicate with the body 11.

[0072] The body 11 may include a cylinder block 111 and a cylinder head ( Figure 3 not shown in the figure). Optionally, the liquid outlet 120 may communicate with the cylinder block 111. Optionally, the liquid outlet 120 may also communicate with the cylinder head. The present application does not limit this.

[0073] Among them, the cylinder head is disposed above the cylinder block 111, and the cylinder head is used to enclose the cylinder block 111 to jointly form a closed combustion space. In this combustion space, the piston can normally compress fuel and the mixture gas to generate power.

[0074] It can be understood that during the operation of the engine 10, lubricating oil is required to reduce the friction and wear between various moving parts (such as the crankshaft), thereby improving the service life of the engine 10. And to facilitate the collection of lubricating oil, the oil pan 12 is disposed below the body 11, that is, the oil pan 12 may be disposed below the cylinder block 111. In this way, it can be ensured that the lubricating oil in the cylinder block 111 fully flows back under the action of gravity and is stored in the oil pan 12 for continuous use of the engine 10.

[0075] Among them, the cylinder block 111 can provide support and positioning for components such as the piston and crankshaft of the engine 10, ensuring that they can move along a predetermined trajectory and speed. The cylinder block 111 can be made of materials with high strength and high rigidity. For example, the material of the cylinder block 111 can be cast iron or aluminum alloy, so as to ensure the stability and durability of the engine 10 during high-speed operation.

[0076] Please refer to Figure 3 and Figure 4 , Figure 4 which is a schematic structural diagram of a cylinder block provided by an embodiment of the present application. In some embodiments of the present application, the cylinder block 111 may include a first cylinder block 1111 and a second cylinder block 1112. Both the first cylinder block 1111 and the second cylinder block 1112 are disposed above the oil pan 12.

[0077] Please continue to refer to Figure 2 , the oil pan 12 can be disposed between the motor 20 and the cylinder block 111. That is, the oil pan 12 can be disposed between the motor 20 and the first cylinder block 1111 and the second cylinder block 1112. In this way, the structure of the hybrid assembly 300 is compact, which is conducive to the miniaturization of the hybrid assembly 300.

[0078] Optionally, the first cylinder block 1111 and the second cylinder block 1112 can be connected together by means of sealant connection, connection member connection, etc. Exemplarily, the connection member can be a bolt, a rivet, etc., and the present application does not limit this. Optionally, the first cylinder block 1111 and the second cylinder block 1112 can also be an integral structure. Exemplarily, the first cylinder block 1111 and the second cylinder block 1112 can be cast by an integral molding process.

[0079] Among them, when the first cylinder block 1111 and the second cylinder block 1112 are applied to the engine 10, the first cylinder block 1111 and the second cylinder block 1112 can be arranged horizontally.

[0080] Exemplarily, the engine 10 can be a horizontally opposed engine 10. The arrangement direction of the first cylinder block 1111 and the second cylinder block 1112 of the horizontally opposed engine 10 is the first direction, and the arrangement direction of the body 11 and the oil pan 12 is the second direction. The second direction is perpendicular to the first direction. That is, the first cylinder block 1111 and the second cylinder block 1112 are arranged horizontally (i.e., along Figure 4 the X-axis direction in

[0081] Due to the design requirements of the horizontally opposed engine 10, the first cylinder block 1111 and the second cylinder block 1112 are arranged relatively at an angle of 180 degrees. This layout makes the pistons of both the first cylinder block 1111 and the second cylinder block 1112 in the horizontal direction (i.e., Figure 4If the two cylinder bodies are set as an integrated structure, the complexity of design and manufacturing will be greatly increased. Therefore, in order to ensure that the first cylinder body 1111 and the second cylinder body 1112 are aligned at a precise position and angle, and at the same time ensure the tight fit and sealing between the components. The first cylinder body 1111 and the second cylinder body 1112 can be a split structure, and the first cylinder body 1111 and the second cylinder body 1112 are connected by a connecting piece.

[0082] Since the cylinder block 111 is subjected to various loads as the mounting frame of the engine 10, and the cylinder hole on the cylinder block 111 is used to mount the piston and seal the combustion chamber, the cylinder hole, as a part of the combustion chamber, needs to withstand the pressure generated by the combustion as well as the high temperature generated by the friction of the piston. In particular, the heat generated by the combustion chamber accumulates in the upper part of the cylinder hole. If the cylinder block 111 cannot be cooled in time, the cylinder hole and the piston will be deformed due to overheating, resulting in a cylinder failure caused by abnormal friction between the piston and the cylinder, which will cause the engine 10 to be scrapped.

[0083] Therefore, in some embodiments of the present application, the machine body 11 may further include a cooling device. A cooling channel may be formed in the cooling device, wherein the cooling device may include a first cooling device and a second cooling device, wherein the first cooling device has a first cooling channel formed therein, and the second cooling device has a second cooling channel formed therein.

[0084] In a possible structural design, at least a portion of the first cooling channel is disposed in the first cylinder 1111, and the first cooling channel is at least used to cool the first cylinder 1111, and at least a portion of the second cooling channel is disposed in the second cylinder 1112, and the second cooling channel is at least used to cool the second cylinder 1112.

[0085] The first cooling device and the second cooling device may both be heat exchange components, in which a coolant flowing along a cooling channel is arranged. The coolant can exchange heat with the cylinder block 111 to reduce the temperature of the cylinder block 111 .

[0086] In another possible structural design, the cylinder head may include a first cylinder head and a second cylinder head. The first cylinder head may be disposed on a side of the first cylinder body 111 away from the oil pan 12, and the first cylinder head is used to seal the first cylinder body 1111 to form a closed combustion space. The second cylinder head may also be disposed on a side of the second cylinder body 1112 away from the oil pan 12, and the second cylinder head is used to seal the second cylinder body 1112 to form a closed combustion space.

[0087] At least part of the first cooling channel can be arranged in the first cylinder head, and the first cooling channel is at least used for cooling the first cylinder head. At least part of the second cooling channel can be arranged in the second cylinder head, and the second cooling channel is at least used for cooling the second cylinder head. In this way, by arranging the cooling channel on the cylinder head, the cooling and temperature reduction of the cylinder head can be achieved.

[0088] In order to avoid heat accumulation in the coolant of the heat exchange component, the engine 10 may further include a flow channel 13, which is communicated with both the first cooling channel and the second cooling channel, and the flow channel 13 is used to provide coolant for the first cooling channel and the second cooling channel.

[0089] In a possible structural design, the flow channel 13 is a circulation channel, that is, both ends of the flow channel 13 are communicated with the inlet and outlet of the cooling channel respectively to form a cooling circulation loop.

[0090] A heat exchange device may also be provided on the flow channel 13, and the heat exchange device is used to transfer the heat of the coolant in the flow channel 13 to other media (such as air). Among them, the heat exchange device may be a plate heat exchanger, a tubular heat exchanger, a heat pipe heat exchanger, etc., and the present application does not limit this.

[0091] In addition, in order to ensure that the coolant can circulate in the cooling circulation loop, a water pump may also be provided on the flow channel 13. Among them, the water pump is a device for transporting liquid or increasing the pressure of the liquid, and the water pump may be a centrifugal pump, an axial flow pump, a mixed flow pump, etc., and the present application does not limit this.

[0092] In this way, the coolant in the flow channel 13 can flow into the cooling channel in turn under the action of the water pump, exchange heat with the cylinder block 111 in the cooling channel, the temperature of the coolant rises, and then the coolant flows out to the flow channel 13, and the heat is dissipated through the heat exchange device on the flow channel 13 and then becomes the coolant with a lower temperature, and then flows back to the cooling channel. In this way, the coolant circulates in the cooling circulation loop. In this way, by forming a closed cooling circulation loop with the flow channel 13 and the cooling channel, external impurities can be prevented from entering the flow channel 13, thereby reducing the maintenance cost of the flow channel 13.

[0093] Please refer to Figure 5 , Figure 5 shows a top view of an oil pan provided by an embodiment of the present application. In some embodiments of the present application, a coolant channel 121 is provided in the oil pan 12, and a liquid outlet 120 communicated with the coolant channel 121 is provided on the oil pan 12, and the liquid outlet 120 is communicated with the cooling channel.

[0094] In a possible structural design, the liquid outlet 120 can communicate with the cooling channel in the cylinder block 111. Optionally, the liquid outlet 120 can only communicate with the first cooling channel in the first cylinder block 1111. Optionally, the liquid outlet 120 can also only communicate with the second cooling channel in the second cylinder block 1112. Optionally, the liquid outlet 120 can also communicate with both the first cooling channel in the first cylinder block 1111 and the second cooling channel in the second cylinder block 1112.

[0095] In another possible structural design, the liquid outlet 120 can also communicate with the cooling channel in the cylinder head. Optionally, the liquid outlet 120 can only communicate with the first cooling channel in the first cylinder head. Optionally, the liquid outlet 120 can also only communicate with the second cooling channel in the second cylinder head. Optionally, the liquid outlet 120 can also communicate with both the first cooling channel in the first cylinder head and the second cooling channel in the second cylinder head.

[0096] In some embodiments, the oil pan 12 can be disposed below the first cylinder block 1111 and the second cylinder block 1112. The liquid outlet 120 can include a first liquid outlet 122 and a second liquid outlet 123, and both the first liquid outlet 122 and the second liquid outlet 123 communicate with the engine block.

[0097] Wherein, the first liquid outlet 122 can communicate with the first cooling channel, and the second liquid outlet 123 can communicate with the second cooling channel. Wherein, the first liquid outlet 122, the second liquid outlet 123 and the coolant channel 121 form at least part of the flow channel 13. Since the first cylinder block 1111 and the second cylinder block 1112 are close in position, the volume of the oil pan 12 can be designed to be smaller, which is beneficial to the miniaturization of the hybrid assembly 300. In addition, the cooling water in the first cylinder block 1111 and the second cylinder block 1112 can flow into the corresponding first cylinder head and second cylinder head, thus simplifying the water channel structure in the cylinder block 111 and the cylinder head.

[0098] In the embodiment of the present application, by providing the coolant channel 121 on the oil pan 12, and respectively providing a first liquid outlet 122 and a second liquid outlet 123 communicating with the coolant channel 121. In this way, the coolant in the coolant channel 121 can flow into the first cooling through the first liquid outlet 122 and into the second cooling channel through the second liquid outlet 123 respectively. In this way, the coolant supply pipeline connected to the engine 10 only needs to communicate with the coolant channel 121 to achieve communication with the first cooling channel and the second cooling channel. Compared with the related art in which a plurality of branch pipelines are provided and respectively connected to the cooling devices in each cylinder block, the embodiment of the present application can reduce the number of pipelines connected to the engine 10, thereby reducing the body space occupied by the pipelines, which is beneficial to the compactness and miniaturization of the engine 10.

[0099] In addition, since the oil pan 12 is disposed below the cylinder block 111, thus, the flow rate of the coolant in the coolant channel 121 flowing towards the cooling channel direction (i.e., Figure 3 the Y-axis direction in

[0100] is relatively slow. As a result, the flow rate of the coolant flowing in the cooling channel is also relatively slow. In this way, it can be ensured that the coolant in the cooling channel exchanges heat fully with the cylinder block 111, improving the heat dissipation effect of the cylinder block 111.

[0101] In some other embodiments, the first cooling channel is in communication with the second cooling channel. The liquid outlet 120 includes a first liquid outlet 122 in communication with the coolant channel 121, and the first liquid outlet 122 is in communication with the first cooling channel. In this way, the second cooling channel is in communication with the first liquid outlet 122 through the first cooling channel.

[0102] In some embodiments of the present application, the coolant channel 121 is integrally provided on the oil pan 12, that is, an oil pan with the coolant channel 121 can be directly manufactured through a mold, or after the oil pan 12 is manufactured, the coolant channel 121 is opened on the oil pan 12. In this way, there is no need to arrange pipelines on the oil pan 12, and the coolant channel and the oil pan are of an integrated structure, reducing the processing procedures and improving the production efficiency.

[0103] In some other embodiments of the present application, a coolant pipeline is provided on the oil pan 12, and the coolant channel 121 is formed inside the coolant pipeline. In this way, it is only necessary to install a coolant pipeline on the oil pan 12, without modifying the structure of the oil pan 12. In this way, there is no need to re-open the mold for the oil pan 12, reducing the production cost.

[0104] It can be understood that in some other embodiments, the body 11 may further include three cylinder blocks, cooling channels are provided in all of the three cylinder blocks, at least three liquid outlets 120 in communication with the coolant channel 121 are provided on the oil pan 12, and the three liquid outlets 120 can be in one-to-one correspondence and communication with the cooling channels in the three cylinder blocks 111. In some other embodiments, the body 11 may further include 4 or 5 cylinder blocks 111 of the same number, at least the same number of liquid outlets 120 as the number thereof are provided on the oil pan 12, and the multiple liquid outlets 120 are in one-to-one correspondence and communication with the cooling channels in the multiple cylinder blocks 111. The present application does not make any limitation thereto.

[0105] Please continue to refer to Figure 5 As shown, in some embodiments of the present application, a liquid inlet 124 communicating with the coolant channel 121 is provided on the oil pan 12. Among them, the liquid inlet 124 constitutes at least part of the flow channel 13.

[0106] Please continue to refer to Figure 2 As shown, the flow channel 13 may further include a coolant pipeline 131. The heat exchange device and the water pump described above may be provided on the coolant pipeline 131, and the coolant pipeline 131 may communicate with the liquid inlet 124.

[0107] In this way, the coolant pipeline 131 only needs to communicate with the liquid inlet 124 on the oil pan 12 to achieve communication with the first cooling channel and the second cooling channel. The coolant pipeline 131 only needs to be assembled with the oil pan 12 once, reducing the assembly time required and lowering the production cost.

[0108] In some embodiments of the present application, the oil pan 12 may include a top surface provided with an oil storage tank 126, a bottom surface opposite to the top surface, and a side surface surrounding the oil storage tank 126. The liquid inlet 124 may be provided on the side surface, and the liquid outlet 120 may be provided on the top surface.

[0109] Since the engine block 11 is usually arranged above the oil pan 12, in this way, setting the liquid outlet 120 on the top surface can not only facilitate the communication between the engine block 11 and the liquid outlet 120, but also reduce the length of the coolant channel 121 on the oil pan 12, thus lowering the production cost. And setting the liquid inlet 124 on the side surface can avoid the limitation of the connection between the oil pan 12 and the coolant pipeline 131 when the motor 20 is arranged on the side of the oil pan 12 away from the engine block 11.

[0110] In some other embodiments of the present application, the liquid inlet 124 may also be provided on the top surface or the bottom surface, and the liquid outlet 120 may be provided on the side surface or the bottom surface. The present application does not make any limitation on this.

[0111] In order to increase the intake air density of the engine 10, in some embodiments, the engine 10 further includes a supercharger. The supercharger compresses air so that more air can enter the cylinder block 111 of the engine 10, enabling the engine 10 to spray more oil, thereby increasing the power and torque of the engine 10.

[0112] Exemplarily, the supercharger may be a turbocharger. The turbocharger can use the exhaust gas discharged from the engine 10 to drive the turbine to rotate, and then drive the coaxial impeller to rotate, compressing the air and sending it into the cylinder. This supercharging method does not consume the power of the engine 10, can effectively increase the intake air pressure and density of the engine 10, thereby increasing the output power and torque.

[0113] Exemplarily, the supercharger can also be a mechanical supercharger, an electric supercharger, a gas wave supercharger, etc., and the present application does not limit this.

[0114] Please refer to Figure 6 and Figure 7 , Figure 6 which is a cross-sectional view of the present application embodiment Figure 5 along the A-A direction, Figure 7 and which is a bottom view of an oil pan provided by the present application embodiment. Since the supercharger will rotate at a high speed during operation, a large amount of heat will be generated. If this heat cannot be dissipated in a timely and effective manner, the internal temperature of the supercharger will increase, which will in turn affect its performance and lifespan. High temperature may cause problems such as a decline in the material properties of the supercharger, the failure of the lubricating oil, and the damage of the seals. Therefore, in order to ensure the normal operation and long-term durability of the supercharger, a cooling and heat exchange pipeline is provided on the supercharger, and the oil pan 12 is also provided with a third liquid outlet 125 communicating with the coolant channel 121, and the third liquid outlet 125 communicates with the cooling and heat exchange pipeline. Among them, the outlet of the supercharger cooling and heat exchange pipeline can also communicate with a heat exchange device.

[0115] In this way, the coolant in the coolant channel 121 can also flow through the third liquid outlet 125 to the cooling and heat exchange pipeline on the supercharger to exchange heat with the supercharger to cool down the supercharger. In this way, there is no need to additionally provide a channel for supplying coolant to the supercharger cooling and heat exchange pipeline, reducing the manufacturing difficulty of the engine 10 and improving the production efficiency of the engine 10.

[0116] Please refer to Figure 3 and Figure 4 , in some embodiments of the present application, an inlet 11A is provided on the body 11, and the cooling device includes a water jacket, which constitutes at least part of the cooling channel, and at least part of the water jacket is arranged inside the body 11, and the inlet 11A communicates with the liquid outlet 120 and the water jacket.

[0117] Among them, the water jacket can be a cavity in the cylinder block 111 and / or the cylinder head, and this cavity is used to accommodate the circulating coolant, so as to effectively take away the heat generated by the combustion chamber of the engine 10 and the inner wall of the cylinder block 111, ensuring that the engine 10 operates within a suitable working temperature range.

[0118] In some embodiments, the inlet 11A may be provided on the cylinder block 111. Since the cylinder head is usually provided on the side of the cylinder block 11 away from the oil pan 12, thus, by setting the inlet 11A on the cylinder block 111, the distance between the liquid outlet 120 on the oil pan 12 and the cylinder block 111 is relatively close, and it is more convenient to connect the liquid outlet 120 and the inlet 11A. In some other embodiments, the inlet 11A may also be provided on the cylinder head. For the convenience of description, the embodiments of the present application will be described by taking the inlet 11A being provided on the cylinder block 111 as an example.

[0119] In a possible structural design, the inlet 11A includes a first inlet 1111A provided on the first cylinder block 1111 and a second inlet 1112A provided on the second cylinder block 1112.

[0120] Wherein, the water jacket may include a first water jacket at least partially disposed in the first cylinder block and a second water jacket at least partially disposed in the second cylinder block. The first inlet 1111A communicates with the first liquid outlet 122 and the first water jacket, and the second inlet 1112A communicates with the second liquid outlet 123 and the second water jacket.

[0121] In this way, the coolant flowing out from the first liquid outlet 122 exchanges heat with the first cylinder block 1111 in the first water jacket, and the coolant flowing out from the second liquid outlet 123 exchanges heat with the second cylinder block 1112 in the second water jacket. Thus, the cooling and temperature reduction of the first cylinder block 1111 and the second cylinder block 1112 are achieved.

[0122] In another possible structural design, the inlet 11A may also include a first inlet 1111A provided on the first cylinder block 1111 and a second inlet 1112A provided on the second cylinder block 1112.

[0123] Wherein, the water jacket includes a first water jacket at least partially disposed in the first cylinder block 1111 and a second water jacket at least partially disposed in the second cylinder block 1112. The first water jacket constitutes at least part of the first cooling channel, and the second water jacket constitutes at least part of the second cooling channel; the first inlet 1111A communicates with the first liquid outlet 122 and the first water jacket;

[0124] In addition, a first outlet communicating with the first water jacket may also be provided on the first cylinder block 1111; the second inlet 1112A communicates with the first outlet and the second water jacket.

[0125] In this way, the first water jacket and the second water jacket are connected through the first outlet on the first cylinder block. Thus, the coolant flowing out from the coolant channel 121 can flow into the second water jacket through the first liquid outlet 122, the first inlet 1111A, the first water jacket, the first outlet, and the second inlet 1112A in sequence to cool down the second cylinder block 1112.

[0126] Please continue to refer toFigure 3 and Figure 4 The first inlet 1111A can be arranged on the bottom wall of the first cylinder block 111 (i.e., the wall surface close to the oil pan 12), and the second inlet 1112A can also be arranged on the bottom wall of the first cylinder block 111. As shown in the figure, both the first liquid outlet 122 and the second liquid outlet 123 can be arranged on the top wall of the oil pan 12.

[0127] In this way, the connection modes between the first liquid outlet 122 and the first inlet 1111A and between the second liquid outlet 123 and the second inlet 1112A are simple. That is, after connecting the oil pan 12 with the first cylinder block 111 and the second cylinder block 112, the first liquid outlet 122 is communicated with the first inlet 1111A, and the second liquid outlet 123 is communicated with the second inlet 1112A. In some other embodiments of the present application, the cooling device can also be a cooling heat exchanger, which can also be called a heat exchanger, and the heat exchanger is a device for transferring part of the heat of a hot fluid to a cold fluid.

[0128] Wherein, the cooling heat exchanger can include a first heat exchange channel and a second heat exchange channel. Wherein, the heat exchange medium (such as, for example, coolant, refrigerant, etc.) flowing in the first heat exchange channel can exchange heat with the heat exchange medium flowing in the second heat exchange channel. The first heat exchange channel can be communicated with the cooling channel to form a circulation loop, and the second heat exchange channel can form a circulation loop with the channels in the cylinder block 111 and / or the cylinder head. Wherein, the heat exchange medium flowing in the first heat exchange channel and the heat exchange medium flowing in the second heat exchange channel can be the same or different, and the present application does not make any limitation thereto.

[0129] In this way, the first heat exchange channel and the second heat exchange channel are not communicated, so that two different heat exchange media suitable for the environments of the cooling channel and the channels in the cylinder block 111 and / or the cylinder head can be determined, which is beneficial to improving the cooling effect of the engine block.

[0130] In some other embodiments of the present application, the cooling device can also be a thermostat of the engine 10. The thermostat can also be called a temperature control valve. The thermostat is an automatic temperature control device, usually containing a temperature sensing component, which can automatically open or close the flow of air, gas or liquid according to the temperature change. The engine thermostat can automatically adjust the amount of water entering the radiator according to the high or low coolant temperature, change the water circulation range, thereby adjusting the heat dissipation capacity of the engine block and ensuring that the engine works within a suitable temperature range.

[0131] Wherein, the thermostat can be a paraffin thermostat or an electronic thermostat, etc., and the present application does not make any limitation thereto.

[0132] In this way, the thermostat of the engine 10 can automatically adjust the amount of water entering the radiator according to the coolant temperature, thereby changing the water circulation range to precisely control the cooling effect of the engine 10. Moreover, it can ensure that the engine 10 operates within a suitable temperature range, neither overheating nor overcooling, which is beneficial to the stable operation and performance of the engine 10.

[0133] Please refer to Figure 8 as shown in Figure 8 which is a top view of the oil pan provided by an embodiment of the present application. In some embodiments, an oil storage tank 126 is formed on the oil pan 12. Among them, the oil pan 12 can be obtained by pouring molten metal into a mold and solidifying it to obtain an oil pan 12 with an oil storage tank 126. In order to facilitate the demolding of the oil storage tank 126 from the mold, at least part of the coolant channel 121 is arranged below the oil storage tank 126.

[0134] Exemplarily, for another example Figure 8 as shown, the coolant channel 121 can be arranged on the bottom wall surface of the oil pan 12, and the side wall part enclosing the coolant channel 121 protrudes from the bottom wall of the oil storage tank 126. In this way, when the oil pan 12 needs to be taken out of the mold, since the coolant channel 121 is arranged on the bottom wall of the oil storage tank 126, compared with arranging the coolant channel 121 completely inside the oil storage tank 126, not only can the oil storage volume of the oil storage tank 126 be increased, but also the processing and production of the oil pan 12 can be facilitated. For example, when the coolant channel 121 is arranged inside the oil storage tank 126, the structure of the oil storage tank 126 formed in the mold may be interfered by the coolant channel 121 during demolding, thereby affecting the production and processing efficiency of the oil pan 12.

[0135] It should be noted that the setting positions of the first liquid outlet 122 and the second liquid outlet 123 depend on the positions of the first inlet 1111A and the second inlet 1112A. Therefore, in some embodiments, the first liquid outlet 122 and the second liquid outlet 123 are located on two opposite side walls enclosing the oil storage tank 126.

[0136] Please continue to refer to Figure 8 as shown, the oil pan 12 includes: a bottom wall 12A and a first side wall 12B, a second side wall 12C, a third side wall 12D, and a fourth side wall 12E that are sequentially connected end to end. Among them, the bottom wall 12A is connected below the first side wall 12B, the second side wall 12C, the third side wall 12D, and the fourth side wall 12E, and the bottom wall and the first side wall 12B, the second side wall 12C, the third side wall 12D, and the fourth side wall 12E form an oil storage tank. The first liquid outlet 122 is arranged on the first side wall 12B, and the second liquid outlet 123 is arranged on the second side wall 12C.

[0137] In order to enable the coolant passage 121 to communicate with both the first liquid outlet 122 and the second liquid outlet 123, in some embodiments, such as Figure 6 and Figure 7 shown, the coolant passage 121 may include a first passage 1211 and a second passage 1212.

[0138] The first passage 1211 is formed at the connection of the second side wall 12C and the bottom wall 12A, and communicates with the first liquid outlet 122 provided on the first side wall 12B. The first passage 1211 is arranged along the extending direction of the second side wall 12C and communicates with the second passage 1212 provided on the third side wall 12D. The second passage 1212 is arranged along the extending direction of the third side wall 12D and communicates with the second liquid outlet 123 provided on the third side wall 12D.

[0139] In this way, by connecting two water channels with different extending directions, the flow direction of the water is changed to ensure that the coolant passage 121 communicates with both the first liquid outlet 122 and the second liquid outlet 123.

[0140] In a possible structural design, the extending direction of the first passage 1211 is not consistent with the extending direction of the second passage 1212. That is, the first passage 1211 and the second passage 1212 are arranged at an angle.

[0141] Exemplarily, as Figure 6 shown, the first passage 1211 and the second passage 1212 may be perpendicularly arranged. Exemplarily, the included angle between the extending directions of the first passage 1211 and the second passage 1212 may also be 45 degrees, 50 degrees, 55 degrees, etc., and the present application does not limit this.

[0142] In this way, by connecting two channels with different extending directions (i.e., the first passage 1211 and the second passage 1212), the flow direction of the coolant is changed, which can ensure that when the liquid inlet 124 and the liquid outlet 120 are not arranged on the same plane, the liquid inlet 124 and the liquid outlet 120 can be communicated through the first passage 1211 and the second passage 1212 with different extending directions. In some embodiments, the first passage 1211 and the second passage 1212 may be formed by pouring molten metal into a mold when casting the oil pan 12 to cast an oil pan 12 having the first passage 1211 and the second passage 1212. Thus, the processing of the first passage 1211 and the second passage 1212 is convenient, the processes of opening the first passage 1211 and the second passage 1212 are reduced, and the production efficiency is improved. In some other embodiments, the first passage 1211 and the second passage 1212 may also be machined by a lathe.

[0143] To facilitate the removal of the mold from the first channel 1211, in some embodiments, the diameter of the first channel 1211 gradually decreases along the direction from the liquid inlet 124 to the second channel 1212.

[0144] In a possible structural design, the diameter of the first channel 1211 gradually decreases in sequence along the direction from the liquid inlet 124 to the second channel 1212.

[0145] In another possible structural design, the diameter of at least a part of the first channel 1211 gradually decreases along the direction from the liquid inlet 124 to the second channel 1212.

[0146] Exemplarily, along the direction from the liquid inlet 124 to the second channel 1212, the diameter of the first channel may first remain unchanged, then gradually decrease to a preset diameter, and finally remain unchanged again.

[0147] Exemplarily, along the direction from the liquid inlet 124 to the second channel 1212, the diameter of the first channel may also first gradually decrease to a preset diameter and then remain unchanged.

[0148] Exemplarily, along the direction from the liquid inlet 124 to the second channel 1212, the diameter of the first channel may also first gradually decrease, then remain unchanged, and then the diameter of the first channel gradually decreases to a preset diameter and finally remains unchanged.

[0149] In addition, the central axis of the liquid inlet 124 is collinear with the central axis of the first channel 1211. That is to say, the liquid inlet 124 is the casting outlet of the mold.

[0150] In this way, along the direction from the liquid inlet 124 to the second channel 1212, the diameter of the mold gradually decreases. Thus, it is more convenient to remove the mold from the liquid inlet 124. Since the liquid inlet 124 is the casting outlet of the mold, then this casting outlet does not need to be blocked and can be directly used as the port communicating with the cooling pipeline, reducing the process of additionally opening the liquid inlet 124. In addition, when the coolant flows along the direction from the liquid inlet 124 to the second channel 1212, since the diameter of the first channel 1211 gradually decreases, the flow rate of the coolant in the first channel 1211 can be increased.

[0151] In some other embodiments, the diameter of the first channel 1211 remains unchanged along the direction from the liquid inlet 124 to the second channel 1212. In this way, the flow rate of the coolant in the first channel 1211 is stable, reducing the interference to the flow rate of the coolant in the cooling circulation loop and achieving high-precision control of the heat exchange of the cooling device.

[0152] In some embodiments, such as Figure 6As shown, a process hole 127 is further provided on the oil pan 12. The process hole 127 communicates with the second channel 1212. The central axis of the process hole 127 is collinear with the central axis of the second channel 1212, and one end of the process hole 127 facing away from the second channel 1212 penetrates through the oil pan 12.

[0153] Similarly, in order to facilitate the removal of the mold from the second channel 1212, in some embodiments, the process hole 127 and the second liquid outlet 123 are arranged at intervals along the extension direction of the second channel 1212, and the diameter of the second channel 1212 gradually decreases along the direction from the process hole 127 to the second liquid outlet 123.

[0154] Similarly, in a possible structural design, the diameter of the second channel 1212 gradually decreases in sequence along the direction from the process hole 127 to the second liquid outlet 123.

[0155] In another possible structural design, the diameter of at least a part of the second channel 1212 gradually decreases along the direction from the process hole 127 to the second liquid outlet 123.

[0156] Exemplarily, along the direction from the process hole 127 to the second liquid outlet 123, the diameter of the second channel 1212 may first remain unchanged, and then gradually decrease to a preset diameter, and finally remain unchanged.

[0157] Exemplarily, along the direction from the process hole 127 to the second liquid outlet 123, the diameter of the second channel 1212 may also first gradually decrease to a preset diameter and then remain unchanged.

[0158] Exemplarily, along the direction from the process hole 127 to the second liquid outlet 123, the diameter of the second channel 1212 may first gradually decrease, then remain unchanged, and then the diameter of the first channel gradually decreases to a preset diameter and finally remains unchanged.

[0159] In this way, along the direction from the process hole 127 to the second liquid outlet 123, the diameter of the mold gradually decreases. Thus, it is more convenient to remove the mold from the process hole 127. In addition, when the coolant flows along the second channel 1212, since the diameter of the second channel 1212 gradually decreases, the flow rate of the coolant in the second channel 1212 can be increased.

[0160] In some embodiments of the present application, the engine 10 further includes a cover body 14. The cover body 14 is arranged at the process hole 127 for blocking the process hole 127. Among them, the cover body 14 can be a plug with an external thread. In this way, it is possible to prevent the coolant from leaking from the process hole.

[0161] In other embodiments of the present application, the process hole 127 is the third liquid outlet 125 described above. In this way, there is no need to additionally open a port, and it is connected to the cooling heat exchange pipeline of the supercharger through the process hole 127, reducing the production process of the engine 10 and improving the production efficiency.

[0162] In addition, in some embodiments, as Figure 6 shown, the first liquid outlet 122 can be arranged at the liquid inlet 124, and the central axis of the first liquid outlet can be arranged perpendicular to the central axis of the liquid inlet. There is a flow splitting area 128 at the liquid inlet 124, and the flow splitting area 128 is respectively connected to the first liquid outlet 122 and the first channel 1211. In this way, the coolant entering from the liquid inlet 124 can flow to the first liquid outlet 122 and the first channel 1211 respectively through the flow splitting area 128. Among them, the diameter of the flow splitting area is larger than the maximum diameter of the first channel 1211.

[0163] In addition, the diameter of the flow splitting area 128 and the diameters of the first channel 1211 and the second channel 1212 can be obtained through simulation calculation. The diameter of the flow splitting area 128 and the diameters of the first channel 1211 and the second channel 1212 need to ensure that the water flow rates in the first cylinder block 1111 and the second cylinder block 1112 are similar, so as to ensure that the temperature difference between the first cylinder block 1111 and the second cylinder block 1112 is small.

[0164] When understanding the scope of the present invention, as used herein, the term "comprising" and its derivatives are intended to be open-ended terms that specify the presence of the recited features, elements, components, groups, wholes, and / or steps, but do not exclude the presence of other unrecited 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.

[0165] As used herein, the term "attached" or "attachment" includes: a configuration in which an element is directly fixed to another element by directly fixing the element to the other element; a configuration in which an element is indirectly fixed to another element by fixing the element to an intermediate member, and the intermediate member is in turn fixed to the other element; and a configuration in which one element is integral with another element, that is, one element is substantially a part of the other element. This definition also applies to words with similar meanings, such as "connected", "coupled", "joined", "mounted", "adhered", "fixed" and their derivatives. Finally, degree terms such as "substantially", "about" and "approximately" used herein represent the amount of deviation that modifies the term so that the final result will not change significantly.

[0166] Unless otherwise defined, the technical and scientific terms used herein have the same meanings as commonly understood by one of ordinary skill in the technical field of the present invention. The terms used herein are for the purpose of describing particular embodiments only and are not intended to limit the present invention. The features described in one embodiment herein can be applied to another embodiment alone or in combination with other features, unless the feature is not applicable or otherwise stated in that other embodiment.

[0167] The invention has been described by the above embodiments, but it should be understood that the above embodiments are only for the purposes of illustration and example, and are not intended to limit the invention to the scope of the described embodiments. In addition, those skilled in the art can understand that the present invention is not limited to the above embodiments, and more variations and modifications can be made according to the teachings of the present invention, and these variations and modifications all fall within the scope of protection required by the present invention.

Claims

1. An oil pan, characterized in that: The oil pan is provided with a cooling liquid channel (121), and the oil pan is provided with a liquid outlet (120) which is in communication with the cooling liquid channel (121), and the liquid outlet (120) is used to be in communication with the engine body.

2. The oil sump according to claim 1, characterized in that: The liquid outlet (120) comprises a first liquid outlet (122) and a second liquid outlet (123) both of which are in communication with the cooling liquid channel (121); the first liquid outlet (122) and the second liquid outlet (123) are both used to communicate with the machine body.

3. The oil sump according to claim 1 or 2, characterized in that: The oil pan is provided with a liquid inlet (124) which is in communication with the coolant channel (121).

4. The oil sump according to claim 1 or 2, characterized in that: The liquid outlet (120) further comprises a third liquid outlet (125) in communication with the cooling liquid channel (121), and the third liquid outlet (125) is used to communicate with a supercharger.

5. The oil sump according to claim 2, characterized in that: The oil pan is provided with a liquid inlet (124) which is in communication with the coolant channel (121); The cooling liquid channel (121) comprises a first channel (1211) and a second channel (1212); the first channel (1211) is connected between the second channel (1212) and the liquid inlet (124); the first liquid outlet (122) is connected to the first channel (1211); and the second liquid outlet (123) is connected to the second channel (1212).

6. The oil sump according to claim 5, characterized in that An extension direction of the first channel (1211) is inconsistent with an extension direction of the second channel (1212).

7. The oil sump according to claim 1 or 2, characterized in that: The oil pan is provided with a coolant pipeline, and the coolant channel (121) is formed in the coolant pipeline.

8. The oil sump according to claim 1 or 2, characterized in that: The oil pan is provided with a liquid inlet (124) which is in communication with the coolant channel (121); The oil pan comprises a top surface provided with an oil storage tank (126), a bottom surface arranged opposite to the top surface, and a side surface arranged around the oil storage tank (126); the liquid inlet (124) is arranged on the side surface, and the liquid outlet (120) is arranged on the top surface.

9. The oil sump according to claim 1 or 2, characterized in that: The oil pan is provided with a liquid inlet (124) which is in communication with the coolant channel (121); The oil pan comprises a top surface provided with an oil storage tank (126), a bottom surface arranged opposite to the top surface, and a side surface arranged around the oil storage tank (126); the liquid inlet (124) is arranged on the top surface or the bottom surface, and the liquid outlet (120) is arranged on the side surface or the bottom surface.

10. The oil sump according to claim 5 or 6, characterized in that: Along the direction from the liquid inlet (124) to the second channel (1212), the diameter of the first channel (1211) gradually decreases.

11. The oil sump according to claim 5 or 6, characterized in that: The central axis of the liquid inlet (124) is collinear with the central axis of the first channel (1211).

12. The oil sump according to claim 5 or 6, characterized in that: The oil pan is also provided with a process hole (127), the process hole (127) is connected to the second channel (1212), the central axis of the process hole (127) is colinear with the central axis of the second channel (1212), and the end of the process hole (127) facing away from the second channel (1212) passes through the oil pan.

13. The oil sump according to claim 12, characterized in that The process hole (127) and the second liquid outlet (123) are arranged at intervals along the extension direction of the second channel (1212).

14. The oil sump according to claim 13, characterized in that Along the direction from the process hole (127) to the second liquid outlet (123), the diameter of the second channel (1212) gradually decreases.

15. The oil sump according to claim 12, characterized in that It also comprises a cover body (14), wherein the cover body (14) is arranged at the process hole (127) and is used to block the process hole (127).

16. The oil sump according to claim 1, characterized in that An oil storage tank (126) is formed on the oil pan, and at least a portion of the coolant channel (121) is arranged below the oil storage tank (126).

17. An engine, characterized in that: It comprises a machine body (11) and an oil pan (12) according to any one of claims 1 to 16, wherein the oil pan (12) is located below the machine body (11); the machine body (11) has a cooling channel, and a liquid outlet (120) is connected to the cooling channel.

18. The engine according to claim 17, characterized in that The machine body (11) comprises a first cylinder body (1111) and a second cylinder body (1112), and the cooling channel comprises a first cooling channel at least partially disposed in the first cylinder body (1111), and a second cooling channel at least partially disposed in the second cylinder body (1112); The liquid outlet (120) comprises a first liquid outlet (122) and a second liquid outlet (123) both of which are connected to the cooling liquid channel (121), wherein the first liquid outlet (122) is connected to the first cooling channel, and the second liquid outlet (123) is connected to the second cooling channel.

19. The engine according to claim 17, characterized in that The machine body (11) comprises a first cylinder body (1111) and a second cylinder body (1112); the cooling channel comprises a first cooling channel at least partially disposed in the first cylinder body (1111), and a second cooling channel at least partially disposed in the second cylinder body (1112); the first cooling channel is in communication with the second cooling channel; The liquid outlet (120) comprises a first liquid outlet (122) in communication with the cooling liquid channel (121), and the first liquid outlet (122) is in communication with the first cooling channel.

20. The engine according to any one of claims 17 to 19, characterized in that: It also includes a supercharger, on which a cooling heat exchange pipeline is provided; the oil pan (12) is also provided with a third liquid outlet (125) connected to the coolant channel (121), and the third liquid outlet (125) is connected to the cooling heat exchange pipeline.

21. The engine according to claim 17, characterized in that The machine body (11) is provided with an inlet (11A); The engine further comprises a water jacket, which constitutes at least a portion of the cooling channel; at least a portion of the water jacket is arranged in the engine body (11), and the inlet (11A) is connected to the liquid outlet (120) and the water jacket.

22. The engine according to claim 21, characterized in that The machine body (11) comprises a first cylinder body (1111) and a second cylinder body (1112); the cooling channel comprises a first cooling channel at least partially arranged in the first cylinder body (1111), and a second cooling channel at least partially arranged in the second cylinder body (1112); the liquid outlet (120) comprises a first liquid outlet (122) and a second liquid outlet (123) both of which are in communication with the cooling liquid channel (121); the first liquid outlet (122) is in communication with the first cooling channel, and the second liquid outlet (123) is in communication with the second cooling channel; The inlet (11A) comprises a first inlet (1111A) provided on the first cylinder (1111) and a second inlet (1112A) provided on the second cylinder (1112); The water jacket comprises a first water jacket at least partially disposed in the first cylinder body (1111) and a second water jacket at least partially disposed in the second cylinder body (1112), the first water jacket constituting at least a portion of the first cooling channel; the second water jacket constituting at least a portion of the second cooling channel; The first inlet (1111A) is connected to the first liquid outlet (122) and the first water jacket, and the second inlet (1112A) is connected to the second liquid outlet (123) and the second water jacket.

23. The engine according to claim 21, characterized in that The machine body (11) comprises a first cylinder body (1111) and a second cylinder body (1112); the cooling channel comprises a first cooling channel at least partially arranged in the first cylinder body (1111), and a second cooling channel at least partially arranged in the second cylinder body (1112); the liquid outlet (120) comprises a first liquid outlet (122) which is in communication with both the cooling liquid channels (121); the first liquid outlet (122) is in communication with the first cooling channel; The inlet (11A) comprises a first inlet (1111A) provided on the first cylinder (1111) and a second inlet (1112A) provided on the second cylinder (1112); The water jacket comprises a first water jacket at least partially disposed in the first cylinder body (1111) and a second water jacket at least partially disposed in the second cylinder body (1112), the first water jacket constituting at least a portion of the first cooling channel, and the second water jacket constituting at least a portion of the second cooling channel; the first inlet (1111A) is connected to the first liquid outlet (122) and the first water jacket; The first cylinder body (1111) is also provided with a first outlet connected to the first water jacket; the second inlet (1112A) is connected to the first outlet and the second water jacket.

24. An engine according to claim 18 or 19, characterized in that The arrangement direction of the first cylinder body (111) and the second cylinder body (112) is a first direction, the arrangement direction of the engine body (11) and the oil pan (12) is a second direction, and the first direction and the second direction are perpendicular to each other.

25. A hybrid assembly, characterized in that: Comprising the engine (10) as claimed in any one of claims 17 to 24.

26. The hybrid assembly according to claim 25, characterized in that: It also includes a motor (20), the machine body (11) includes a first cylinder body (1111) and a second cylinder body (1112), and the oil pan (12) is arranged between the motor (20) and the first cylinder body (111) and the second cylinder body (112).

27. A vehicle, characterized in that: It comprises the oil pan (12) as described in any one of claims 1 to 16, or the engine (10) as described in any one of claims 17 to 24, or the hybrid assembly as described in any one of claims 25 to 26.

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