Engines and vehicles

Abstract

The application relates to the engine technical field and discloses an engine and a vehicle, the axial direction of a crankshaft in the engine is a first direction, and the width direction is a second direction; the engine comprises: a cylinder assembly; a lubricating system, the lubricating system comprises: an oil tank, the oil tank is arranged on one side of the cylinder assembly in the second direction and is used for storing oil; a pump assembly, the pump assembly is fixed to a cylinder block of the cylinder assembly and is used for driving the circulation and delivery of the oil between the oil tank and the cylinder assembly; and an oil cooler, the oil cooler is fixedly arranged at an oil pan in the cylinder assembly, the oil cooler is communicated between the cylinder assembly and the pump assembly and is used for cooling the oil, and the oil tank, the pump assembly and the oil cooler are located on the same side of the cylinder assembly in the second direction. Thus, the oil tank is independently arranged compared with the cylinder assembly, a small amount of oil is only required to be reserved at the oil pan to meet the circulation and delivery of the oil, the vertical space size required by the engine arrangement is small, and the minimum ground clearance of the vehicle can be controlled.

Description

Technical Field

[0001] This application relates to the field of engine technology, and in particular to an engine and a vehicle. Background Technology

[0002] Currently, different application scenarios have different requirements for the appearance and dimensions of engines.

[0003] In related technologies, engines typically use a wet lubrication system. In a wet lubrication system, the oil pan is located at the bottom of the engine and needs to hold enough oil to meet the engine's lubrication requirements. This results in a large oil pan height, which in turn increases the overall height of the engine and makes it impossible to meet the requirements for a low center of gravity and low ground clearance of the vehicle. Utility Model Content

[0004] This application aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this application is to provide an engine in which the oil tank of the lubrication system is located externally to the cylinder assembly, which helps to reduce the vertical size of the engine, and the oil cooler and pump assembly are arranged on the same side of the cylinder assembly, so that the components in the engine are arranged compactly and the space utilization of the engine can be improved.

[0005] According to an embodiment of the first aspect of this application, the engine has a crankshaft with its axial direction in a first direction and its width direction in a second direction. The engine includes: a cylinder assembly; a lubrication system including: an oil tank disposed on one side of the cylinder assembly in the second direction and used to store engine oil; a pump assembly fixed to the cylinder block of the cylinder assembly and used to drive the engine oil to circulate between the oil tank and the cylinder assembly; and an oil cooler fixed to the oil pan in the cylinder assembly, the oil cooler communicating between the cylinder assembly and the pump assembly and used to cool the engine oil. The oil tank, the pump assembly, and the oil cooler are located on the same side of the cylinder assembly in the second direction.

[0006] According to the engine of the embodiment of this application, the oil tank, pump assembly and oil cooler in the engine are arranged on the same side of the cylinder assembly, which can reduce the oil storage requirements of the oil pan, make the engine smaller in the vertical direction, save the vertical space required for engine arrangement, and facilitate the control of the engine's ground clearance.

[0007] According to some embodiments of this application, the oil cooler is further provided with a water-cooling channel for supplying water-cooling medium; the cylinder block has a liquid channel, the inlet port of which is connected to a water pump, and the outlet port of which is connected to the oil cooler. The inlet port and the outlet port are located on the same side of the cylinder block in the second direction. The cylinder block is provided with an inlet port located at the end of the cylinder block on the first direction side, and is used to communicate and cooperate with the outlet side of the water-cooling channel. Therefore, part of the water-cooling channel (i.e., the aforementioned liquid channel) can be integrated into the cylinder block, saving on the number of piping structures in the engine.

[0008] According to some embodiments of this application, the engine further includes a drive chain assembly disposed in the cylinder block and poweredly connected between the crankshaft and the pump assembly, for transmitting power from the crankshaft to the pump assembly. The cylinder block includes: a cylinder body forming the liquid flow channel; and a drive chain mounting seat disposed at the end of the cylinder body in the first direction and for mounting the drive chain assembly.

[0009] According to some embodiments of this application, the engine further includes: an inlet pipe connected between the outlet port of the liquid flow channel and the oil cooler; and an outlet pipe connected between the oil cooler and the inlet port.

[0010] According to some embodiments of this application, the oil pan is connected below the cylinder body and includes a shell body. The shell body has an upwardly open receiving groove. The receiving groove forms a sinkhole extending along the first direction at the middle of the second direction. The sinkhole is sunk from the bottom wall of the receiving groove, and the shell body has an oil suction port at the sinkhole. The oil suction port is connected to the pump assembly and is used to discharge oil from the receiving groove.

[0011] According to some embodiments of this application, the housing body has a first mounting seat at one end in the first direction. The first mounting seat is recessed into the receiving groove and has a mounting cavity formed in the lower direction of the housing body. The first mounting seat is used to install the oil filter, and at least a portion of the oil filter is placed in the mounting cavity. The housing body also has a second mounting seat located on one side of the housing body in the second direction and used to install the oil cooler. At least a portion of the second mounting seat is disposed opposite to the mounting cavity in the second direction. Thus, the oil filter is fixed to the bottom of the oil pan, and the oil filter communicates and engages with the oil cooler and cylinder block side through the perforated structure on the oil pan, improving the compactness of the components in the engine.

[0012] According to some embodiments of this application, the second mounting base is provided with a first connecting hole, which is used to connect the oil cooler and the oil filter so that the oil in the oil cooler can flow into the oil filter through the first connecting hole; the first mounting base is also provided with a second connecting hole, one end of which is connected to the oil filter, and the other end of which is located in the receiving groove and opens to the cylinder block side of the engine for communication and cooperation with the cylinder block.

[0013] According to some embodiments of this application, the drive chain assembly includes a drive shaft, the axial direction of which is parallel to the first direction. The pump assembly includes: a first pump, which is disposed on the cylinder body and connected to the oil outlet side of the oil tank, and is used to pump the oil to one side of the cylinder body, and the oil can flow into the oil cooler through the cylinder body; a second pump, which is disposed on the cylinder body and connected to the oil return side of the oil tank, and is used to pump the oil in the receiving groove to the oil tank; the first pump and the second pump are arranged sequentially along the first direction and are respectively poweredly connected to the drive shaft.

[0014] According to some embodiments of this application, the settling tank is provided with a plurality of oil suction ports, and the plurality of oil suction ports are arranged at intervals along the first direction in the settling tank; There are multiple second pumps, which are arranged sequentially along the first direction, and each second pump is connected to one of the oil suction ports.

[0015] Another object of this application is to provide a vehicle that includes the aforementioned engine.

[0016] The advantages of the vehicle and the engine mentioned above compared to existing technologies are the same, and will not be repeated here.

[0017] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0018] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of an engine according to an embodiment of this application. Figure 1 ; Figure 2 This is a schematic diagram of the structure of an engine according to one embodiment of this application. Figure 2 ; Figure 3This is a schematic diagram of the structure of an engine according to one embodiment of this application. Figure 3 ; Figure 4 This is a partial schematic diagram of an engine according to one embodiment of this application. Figure 1 ; Figure 5 This is a partial schematic diagram of an engine according to one embodiment of this application. Figure 2 ; Figure 6 This is a schematic diagram of the structure of a pump assembly according to an embodiment of this application; Figure 7 This is a schematic diagram of the lubrication path of the lubrication system in an engine according to an embodiment of this application; Figure 8 This is a schematic diagram of the structure of an oil pan according to an embodiment of this application; Figure 9 This is a schematic diagram of the cylinder block according to one embodiment of this application.

[0019] Figure label: Engine 100; Cylinder assembly 1; Cylinder body 11; Liquid flow channel 111; Liquid inlet port 1111; Liquid outlet port 1112; Liquid inlet interface 1113; Cylinder body 112; Drive chain mounting base 113; Oil pan 12; Shell body 121; Receiving groove 1211; Settling groove 1212; Oil suction port 1213; First mounting base 122; Second mounting base 123; First connecting hole 1231; Second connecting hole 1232; Third connecting hole 1233; Lubrication system 2; Oil tank 21; Pump assembly 22; First pump 221; Second pump 222; Drive shaft 223; Oil cooler 23; Oil filter 24; Drive chain assembly 3; chain 31; sprocket 32; Inlet pipe 41; outlet pipe 42; first pipe section 43; second pipe section 44. Detailed Implementation

[0020] The embodiments of this application are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application.

[0021] Currently, different application scenarios have different requirements for the appearance and dimensions of engines.

[0022] In related technologies, engines typically employ wet lubrication systems. In these systems, the oil pan, located at the bottom of the engine and required to hold sufficient oil for lubrication, results in a large oil pan, increasing the overall engine height and making it difficult to meet the vehicle's requirements for a low center of gravity and low ground clearance. Furthermore, some vehicle models place particularly high demands on their engine lubrication systems, needing to withstand demanding driving conditions such as low ground clearance, rapid acceleration and deceleration, and high-speed cornering.

[0023] The following is for reference. Figures 1-8 The engine 100 according to the embodiments of this application is described, wherein the axial direction of the crankshaft in the engine 100 is defined as the first direction, and the width direction of the engine 100 is defined as the second direction.

[0024] An engine 100 according to an embodiment of this application includes a cylinder assembly 1 and a lubrication system 2. The lubrication system 2 is used to lubricate the components (such as pistons, crankshafts, etc.) in the engine 100 to reduce the frictional resistance between the components during engine operation, prevent wear of the components, help extend the service life of the components, and improve the operational stability of the engine 100.

[0025] Combined photos Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, the lubrication system 2 includes: an oil tank 21, a pump assembly 22, and an oil cooler 23.

[0026] Specifically, the oil tank 21 is located on one side of the cylinder assembly 1 in the second direction and is used to store oil, thereby setting an independent oil storage mechanism outside the cylinder assembly 1, thereby reducing the oil storage pressure on one side of the cylinder assembly 1, reducing the vertical dimension of the cylinder assembly 1, and thus facilitating the control of the ground clearance on one side of the cylinder assembly 1.

[0027] Furthermore, the pump assembly 22 is fixed to the cylinder block 11 of the cylinder assembly 1, and the pump assembly 22 is used to drive the oil to circulate between the oil reservoir 21 and the cylinder assembly 1. In other words, the pump assembly 22 is used to provide driving force for the circulation of the oil. The oil is the lubricating medium in the lubrication system 2. Thus, the pump assembly 22 can be fixedly fitted to the cylinder assembly 1, which helps to reduce the pulsation generated at the pump assembly 22.

[0028] Combination Figure 1 and Figure 4As shown, the oil cooler 23 is fixedly installed at the oil pan 12 in the cylinder assembly 1. The oil cooler 23 is connected between the cylinder assembly 1 and the pump assembly 22 and is used to cool the oil. The oil cooler 23 cools the oil during the oil circulation process, thereby dissipating some of the heat of the engine 100 to the outside through the oil, so as to keep the engine 100 at a suitable operating temperature and prevent the components in the engine 100 from mechanical failure and performance degradation due to overheating.

[0029] According to the embodiment of this application, in the engine 100, the oil tank 21, pump assembly 22, and oil cooler 23 are located on the same side of the cylinder assembly 1 in the second direction. This arrangement makes the oil tank 21, pump assembly 22, and oil cooler 23 compact, facilitating their connection and cooperation with the cylinder assembly 1. This reduces the number of components required in the engine 100, achieving a lightweight design. Furthermore, since the oil tank 21, pump assembly 22, and oil cooler 23 are located on one side of the cylinder assembly 1 in the width direction, they do not occupy additional vertical space at the cylinder assembly 1. This reduces the vertical space required for the cylinder assembly 1, better meeting the ground clearance requirements.

[0030] Understandably, in the current wet lubrication system 2, the engine oil (i.e. the lubricating medium in the lubrication system 2) is usually stored in the oil pan 12 in the cylinder assembly 1. This results in the oil pan 12 needing to have a certain depth to ensure the oil reserve and avoid problems such as cavitation. This allows the lubrication in the engine 100 to continue, which in turn results in a larger overall vertical dimension of the engine 100, making it unable to meet the ground clearance requirements.

[0031] In this application, the engine oil is stored in the oil tank 21, which is an oil storage device set independently of the cylinder assembly 1. This allows only a small amount of engine oil to be stored in the oil pan 12 to meet the oil circulation and transportation needs. This reduces the vertical dimension of the oil pan 12 and the vertical space required for the arrangement of the cylinder assembly 1 while meeting the oil storage requirements of the lubrication system 2.

[0032] It should be further explained that the pump assembly 22 is installed on the cylinder block 11, and the pump assembly 22 is used to drive the oil circulation in the lubrication system 2. That is, the pump assembly 22 can draw oil from the oil pan 12 and pump the oil to the oil tank 21. The pump assembly 22 can also pump the oil in the oil tank 21 to the side of the cylinder assembly 1, thereby realizing the circulation of oil.

[0033] The oil cooler 23 is installed and fixed at the oil pan 12, so that the oil cooler 23 and the cylinder assembly 1 fit together tightly. Furthermore, by using the oil pan 12 as the mounting carrier for the oil cooler 23, the number of mounting brackets required in the engine 100 can be reduced.

[0034] In some embodiments of this application, the oil cooler 23 is also provided with a water cooling channel for the flow of water cooling medium, which can be cooled down when the water cooling medium flows through the oil cooler 23.

[0035] Furthermore, the cylinder block 11 has a liquid flow channel 111, the liquid inlet port 1111 of the liquid flow channel 111 is connected to the water pump, and the liquid outlet port 1112 of the liquid flow channel 111 is connected to the oil cooler 23. Moreover, the liquid inlet port 1111 and the liquid outlet port 1112 are located on the same side of the cylinder block 11 in the second direction. The cylinder block 11 is provided with a liquid inlet interface 1113, which is located at the end of the cylinder block 11 on one side in the first direction. The liquid inlet interface 1113 is used to communicate and cooperate with the liquid outlet side of the water cooling flow channel.

[0036] Combination Figure 1 and Figure 2 As shown, it can be understood that the engine 100 integrates a water jacket in the cylinder assembly 1. The water jacket is used to cooperate with other equipment (such as a water pump) and components (piping structure, interfaces, etc.) located outside the cylinder assembly 1 to realize the circulation and delivery of water-cooling medium, so as to ensure the cooling effect at the cylinder assembly 1. The water pump can be connected to the outlet side of the water jacket (such as the cylinder head water jacket) in the cylinder assembly 1. Under the action of the water pump, the water-cooling medium can be pumped into the liquid flow channel 111 through the liquid inlet 1113. The water-cooling medium discharged through the liquid flow channel 111 can flow into the oil cooler 23, and after being cooled by the oil cooler 23, it is discharged back to the liquid inlet 1113. The liquid inlet 1113 is connected to the water jacket in the cylinder assembly 1, so that the cooled water-cooling medium can flow back into the cylinder assembly 1 to achieve water-cooling cooling of the cylinder assembly 1.

[0037] Further integration Figure 1 , Figure 2 , Figure 4 as well as Figure 9 As shown, the inlet port 1111 and the outlet port 1112 are located on the same side of the cylinder block 11 in the second direction, and the oil cooler 23 is fixed at the oil pan 12 located below the cylinder block 11, so that the outlet port 1112 and the inlet side of the oil cooler 23 are arranged close to each other, shortening the distance between the outlet port 1112 and the oil cooler 23, making it easier to connect the outlet port 1112 and the oil cooler 23. This makes the pipeline structure for connecting the outlet port 1112 and the oil cooler 23 located on the same side of the cylinder assembly 1 in the second direction, which can shorten the length of the pipeline structure and facilitate connection.

[0038] Combination Figure 1 , Figure 4 and Figure 5 As shown, the liquid inlet 1113 is located at the end of the cylinder block 11 in the first direction, and the liquid flow channel 111 is preferably located in the cylinder block 11 near the liquid inlet 1113. This makes the flow channel structure and interface structure integrated in the cylinder block 11 compact, and the pipe structure and oil cooler 23 and other components arranged outside the cylinder assembly 1 can be concentrated and compactly arranged on one side of the cylinder assembly 1, which helps to improve the space utilization of the engine 100.

[0039] In this application, a portion of the water-cooled circulation channel (i.e., the liquid channel 111 mentioned above) is integrated in the cylinder block 11, so that the water-cooled medium discharged from the water jacket in the cylinder assembly 1 can be pumped back to the cylinder block 11 by the water pump and then flow into the oil cooler 23. This can save the length of the pipeline structure in the engine 100, reduce the difficulty of arranging the pipeline structure in the engine 100, and ensure the delivery effect of the water-cooled medium to the oil cooler 23.

[0040] Combination Figure 1 , Figure 2 , Figure 4 as well as Figure 5 As shown, in some embodiments of this application, the engine 100 further includes a piping structure, which includes at least an inlet pipe 41 and an outlet pipe 42. The inlet pipe 41 and the outlet pipe 42 are used for supplying water-cooling medium.

[0041] Specifically, the inlet pipe 41 is connected between the outlet port 1112 of the liquid flow channel 111 and the oil cooler 23, allowing the water-cooling medium discharged from the liquid flow channel 111 to flow into the oil cooler 23 through the inlet pipe 41; the outlet pipe 42 is connected between the oil cooler 23 and the inlet port 1113, allowing the water-cooling medium cooled by the oil cooler 23 to be discharged to the inlet port 1113 through the outlet pipe 42. Thus, by connecting the inlet pipe 41 and the outlet pipe 42 at the oil cooler 23, the water-cooling medium discharged from the cylinder assembly 1 can flow back into the cylinder assembly 1 after flowing through the oil cooler 23.

[0042] The outlet port 1112, the inlet port 1113, and the oil cooler 23 are all arranged close to one end of the cylinder assembly 1 in the first direction, making the outlet port 1112, the inlet port 1113, and the oil cooler 23 compactly arranged. This can effectively shorten the arrangement length of the pipeline structure (i.e., the aforementioned inlet pipe 41 and outlet pipe 42) in the engine 100 and reduce the difficulty of arranging the pipeline structure.

[0043] Combination Figure 1 , Figure 2 , Figure 3 as well as Figure 5 As shown, in some embodiments of this application, the engine 100 further includes a drive chain assembly 3, which is disposed on the cylinder block 11 and is powered between the crankshaft and the pump assembly 22. The drive chain assembly 3 is used to transmit power from the crankshaft to the pump assembly 22 so as to enable the pump assembly 22 to operate and pump the engine oil through the pump assembly 22.

[0044] Further integration Figure 5 and Figure 9 As shown, the cylinder body 11 includes a cylinder body 112 and a drive chain mounting seat 113. The cylinder body 112 forms the liquid flow channel 111 described above. The drive chain mounting seat 113 is disposed at the end of the cylinder body 112 in a first direction and is used to mount the drive chain assembly 3.

[0045] The drive chain assembly 3 includes a sprocket 32 ​​and a chain 31. The drive chain assembly 3 is a transmission device connected between the crankshaft and the pump assembly 22, so as to transmit the driving force at the crankshaft to the pump assembly 22 through the drive chain assembly 3, and realize the driving of the pump assembly 22 by using the driving force output at the crankshaft.

[0046] Furthermore, the drive chain mounting base 113 and the cylinder body 112 can be integrally formed by casting, so that the drive chain mounting base 113 can be integrated on the cylinder body 112, thereby improving the integration of the cylinder body 11.

[0047] It is understood that the drive chain mounting base 113 encloses a cavity structure, within which the drive chain assembly 3 is housed and installed, thereby driving the pump assembly 22 via chain drive. Furthermore, the drive chain assembly 3 can be lubricated by oil splash. In other words, the oil in the lubrication system 2 can enter the cavity structure and lubricate the drive chain assembly 3, ensuring its stability and reliability during operation. Simultaneously, since the drive chain mounting base 113 and the cylinder body 112 are integrally constructed, no additional connecting components (such as bolts) are required to assemble the drive chain mounting base 113 and the cylinder body 112, resulting in a tight fit between them.

[0048] In some embodiments of this application, the drive chain assembly 3 includes a chain 31 and two sprockets 32. The two sprockets 32 are respectively used to connect to the crankshaft and the drive shaft 223. The chain 31 is used for power transmission between the two sprockets 32, thereby driving the drive shaft 223 to move and realizing the operation of the drive pump assembly 22.

[0049] It should be noted that the pump assembly 22 may be equipped with multiple pump bodies, which can be driven by the same drive shaft 223 to enable multiple pump bodies to operate simultaneously, thereby further improving the integration of the pump assembly 22.

[0050] Combination Figure 1 and Figure 4 As shown, in some embodiments of this application, the oil pan 12 is connected below the cylinder body 112. The oil pan 12 includes a shell body 121, which has an upwardly open receiving groove 1211. The receiving groove 1211 forms a sink 1212 extending in the first direction at the middle of the second direction. The sink 1212 is sunken from the bottom wall of the receiving groove 1211, and the shell body 121 has an oil suction port 1213 at the sink 1212. The oil suction port 1213 is connected to the pump assembly 22 and is used to discharge the oil in the receiving groove 1211.

[0051] Understandably, the accommodating groove 1211 is open to the cylinder block 11, and the accommodating groove 1211 is used to hold engine oil. The engine oil in the lubrication system 2 of the engine 100 can flow downward and collect in the accommodating groove 1211.

[0052] Furthermore, the pump assembly 22 (e.g., the pump structure in the pump assembly 22 used for oil suction) cooperates with the oil suction port 1213 to draw oil from the oil pan 12 and further deliver the oil to other parts of the engine 100 (e.g., the oil tank 21), thereby realizing the circulation and delivery of oil in the lubrication system 2, ensuring the lubrication performance of the engine 100, and helping to improve the operating stability and reliability of the engine 100.

[0053] Combination Figure 1 and Figure 8 As shown, the housing body 121 has a further recessed groove 1212 on the bottom wall of the receiving groove 1211. The oil in the receiving groove 1211 will preferentially gather at the groove 1212 under the action of gravity. Moreover, the groove 1212 is provided with an oil suction port 1213, so that the pump assembly 22 can draw the oil in the groove 1212 to ensure the oil drawing effect of the pump assembly 22 at the oil pan 12, avoid the problem of suction cavitation, improve the drawing effect of the lubricating medium (i.e. the above-mentioned oil) in the engine 100 at the oil pan 12, so that the lubricating medium can be effectively drawn and participate in the lubrication of the components in the engine 100.

[0054] It is understandable that the oil pan 12 is located at the bottom of the engine 100. In the vertical direction, the sink 1212 is positioned low in the oil pan 12, which allows the oil in the receiving tank 1211 to preferentially collect at the sink 1212. This allows the sink 1212 to store oil continuously, achieving centralized storage of oil at the sink 1212. Furthermore, the oil can be extracted through the oil suction port 1213 in the sink 1212, ensuring the effective extraction of oil from the oil pan 12 and avoiding the problem of cavitation. This improves the stability of the oil supply in the engine 100.

[0055] It should be noted that in the relevant technology, a "dry lubrication system 2" is designed. In the engine 100 that uses the above-mentioned "dry lubrication system 2", the oil pan 12 only has the function of "sealing the crankcase + temporary oil collection". As a result, the amount of oil that can be contained in the oil pan 12 is small and easily dispersed, making it inconvenient to extract the oil. This affects the circulation efficiency of the oil in the engine 100, resulting in poor lubrication effect of the engine 100.

[0056] In this application, the housing body 121 stores engine oil through a receiving groove 1211, and a lower sink 1212 is provided on the bottom wall of the receiving groove 1211, so that the housing body 121 can centrally store engine oil at the sink 1212. This ensures the effective oil extraction through the oil suction port 1213 in the sink 1212, avoids the problem of cavitation, and improves the stability and reliability of the engine oil supply in the engine 100, ensuring continuous lubrication of the components in the engine 100. In other words, even if the amount of engine oil contained in the oil pan 12 of the engine 100 using a dry lubrication system 2 is limited, the centralized storage of engine oil can be achieved through the sink 1212, which helps to optimize the oil suction path of the oil collector (such as the pump assembly 22) and ensure the stability of the engine oil supply.

[0057] Combination Figure 1 , Figure 2 , Figure 3 as well as Figure 8As shown, in some embodiments of this application, a first mounting seat 122 is provided at one end of the housing body 121 in the first direction. The first mounting seat 122 is recessed into the receiving groove 1211, and a mounting cavity is formed in the lower direction of the housing body 121. The first mounting seat 122 is used to install the oil filter 24, and at least a portion of the oil filter 24 is placed in the mounting cavity to fix the oil filter 24 to the oil pan 1210. The housing body 121 is also provided with a second mounting seat 123, which is located on one side of the housing body 121 in the second direction and is used to install the oil cooler 23. At least a portion of the second mounting seat 123 is disposed opposite to the mounting cavity in the second direction. Thus, the oil filter 24 is fixed to the bottom of the oil pan 12, and the oil filter 24 can be connected and cooperated with the oil cooler 23 and the cylinder block 11 side through the hole structure on the oil pan 12, thereby improving the compactness of the components in the engine 100.

[0058] The oil filter 24 is used to remove impurities such as dust, metal particles, carbon deposits, and soot particles mixed in the engine oil to protect the engine 100. Understandably, the engine oil circulates within the lubrication system 2 of the engine 100 to ensure lubrication performance at the engine 100. The oil filtered by the oil filter 24 can then flow back through the oil pan 12 to the cylinder block 11 to achieve its lubrication function.

[0059] In this application, by providing a first mounting seat 122 on the housing body 121, the oil filter 24 can be directly fixed to the bottom of the oil pan 12, and the oil pan 12 can be used as the mounting carrier for the oil filter 24. This allows the oil filter 24 and the oil pan 12 to be arranged compactly, which helps to save the arrangement space of the oil filter 24 and improve the space utilization of the engine 100.

[0060] Furthermore, the first mounting base 122 is recessed into the receiving groove 1211 to form a downwardly open mounting cavity below the oil pan 12, and the mounting cavity is used to accommodate at least part of the oil filter 24 to reduce the downward protrusion of the oil filter 24 relative to the bottom wall of the housing body 121, thereby reducing the vertical dimension of the oil pan 12 on which the oil filter 24 is mounted and saving vertical space.

[0061] The first mounting base 122 is located at one end of the housing body 121 in the first direction, so that the first mounting base 122 can be positioned in an area that avoids the receiving groove 1211, so that the oil stored in the receiving groove 1211 is located on one side of the first mounting base 122 in the first direction, avoiding the oil dispersion and increasing the difficulty of extraction, and helping to ensure the oil aggregation effect in the receiving groove 1211.

[0062] Reference Figure 8 As shown, in some embodiments of this application, the top surface of the first mounting base 122 is set lower than the top surface of the shell body 121, thereby preventing interference between the first mounting base 122 and the cylinder body 11.

[0063] In this application, the top surface of the first mounting base 122 is set lower than the top surface of the shell body 121, so that the first mounting base 122 will not intrude into the space on one side of the cylinder body 11, thereby avoiding interference between the first mounting base 122 and the cylinder body 11 and ensuring the assembly reliability of the oil pan 12 and the cylinder body 11.

[0064] Combination Figure 1 , Figure 2 as well as Figure 8 As shown, a second mounting base 123 is also provided on the housing body 121. The second mounting base 123 is the mounting carrier of the oil cooler 23, so that the oil cooler 23 can be fixed to the oil pan 12 through the second mounting base 123, thereby realizing the assembly and fixation of the oil cooler 23 in the engine 100, making the oil cooler 23 fit tightly with the oil pan 12, and facilitating the connection and cooperation between the oil cooler 23 and the oil filter 24.

[0065] It is understood that the first mounting seat 122 for installing the oil filter 24 is located at one end of the housing body 121 in the first direction, and the second mounting seat 123 for installing the oil cooler 23 is located on one side of the housing body 121 in the second direction. The first mounting seat 122 and the second mounting seat 123 are arranged adjacent to each other, so that the oil cooler 23 and the oil filter 24 can be arranged compactly, which facilitates the connection and cooperation between the oil cooler 23 and the oil filter 24.

[0066] In the lubrication system 2 of the engine 100, the engine oil cooled by the oil cooler 23 can flow to the oil filter 24. After being filtered by the oil filter 24, the engine oil enters the cylinder block 11 of the engine 100 to lubricate the components in the engine 100. Therefore, by arranging the second mounting seat 123 on one side of the mounting cavity in the second direction, this application can arrange the oil cooler 23 adjacent to the oil filter 24, so that the engine oil discharged from the oil cooler 23 can flow into the oil filter 24 through the oil pan 12, optimizing the oil delivery path, reducing the piping layout in the engine 100, and helping to improve the space utilization of the engine 100.

[0067] Currently, the oil pan 12 is only located at the bottom of the engine 100 to seal the crankcase and store engine oil, thus wasting space at the bottom of the engine 100 (e.g., between the oil pan 12 and the chassis). Meanwhile, the oil cooler 23 and oil filter 24 need to be separately located within the engine 100 (e.g., on the side or front of the engine 100), resulting in these components occupying a large amount of engine compartment space and increasing the connection cost of piping within the engine 100 (e.g., the pipe structure connecting the oil cooler 23 and the oil filter 24).

[0068] In this application, the oil pan 12 integrates a first mounting base 122 and a second mounting base 123, thereby allowing the oil cooler 23 and the oil filter 24 to be mounted and fixed on the oil pan 12. This results in a compact arrangement of the oil cooler 23 and the oil filter 24, saving engine compartment space in the engine 100 required for their arrangement. Furthermore, the close arrangement of the oil cooler 23 and the oil filter 24 helps reduce the number of pipes in the engine 100 and lowers pipe connection costs.

[0069] In a further embodiment of this application, the second mounting base 123 is provided with a first connecting hole 1231. The first connecting hole 1231 is used to connect the oil cooler 23 and the oil filter 24, so that the oil in the oil cooler 23 can flow into the oil filter 24 through the first connecting hole 1231. There is no need to set an additional pipeline structure between the oil cooler 23 and the oil filter 24. The connection between the oil cooler 23 and the oil filter 24 is achieved directly through the hole structure integrated on the cylinder block 11 (i.e., the first connecting hole 1231).

[0070] It is understandable that the oil cooler 23 is provided with a discharge port for oil to be discharged, and the oil filter 24 is provided with an inlet port for oil to flow in. When the oil cooler 23 is assembled and fixed at the second mounting base 123, the discharge structure of the oil cooler 23 can discharge the oil into the first connecting hole 1231, and the oil can flow into the inlet port of the oil filter 24 through the first connecting hole 1231, so that the oil cooler 23 can deliver the cooled oil to the oil filter 24.

[0071] Reference Figure 8 As shown, one end of the first connecting hole 1231, which is used to communicate and cooperate with the discharge port of the oil cooler 23, is opened to one side in the second direction, so that when the oil cooler 23 is installed and cooperated with the second mounting base 123, the discharge port of the oil cooler 23 is installed and cooperated with the first connecting hole 1231.

[0072] Preferably, the first connecting hole 1231 is constructed as a through hole that extends along the second direction, so as to facilitate the machining of the first connecting hole 1231 at the second mounting base 123, and to facilitate the installation and cooperation of the oil cooler 23, the oil filter 24 and the first connecting hole 1231.

[0073] In some embodiments of this application, a second connecting hole 1232 is provided at the first mounting base 122. One end of the second connecting hole 1232 is connected to the oil filter 24, and the other end of the second connecting hole 1232 is located in the receiving groove 1211 and opens to the cylinder block 11 side of the engine 100 for communication and cooperation with the cylinder block 11, so that the oil filtered by the oil filter 24 can flow to the cylinder block 11 side through the second connecting hole 1232.

[0074] It should be noted that after the cylinder block 11 and the cylinder head are installed and fitted, an oil passage is formed on the cylinder block 11 that communicates with the second connecting hole 1232. The engine oil discharged through the second connecting hole 1232 can flow into the oil passage on the cylinder block 11, thereby supplying cooled and filtered engine oil to one side of the cylinder block 11 to improve the operational stability and reliability of the lubrication system 2 in the engine 100.

[0075] Combination Figure 2 and Figure 8 As shown, in some embodiments of this application, a third connecting hole 1233 is also provided at the second mounting base 123. The third connecting hole 1233 is used to communicate and cooperate with the pump structure in the pump assembly 22. The pump structure is used to pump oil to the third connecting hole 1233.

[0076] One end of the third connecting hole 1233 is located inside the housing body 121 and is used to communicate with the pump structure. The other end of the third connecting hole 1233 is open at the second mounting base 123 facing outward in the second direction (i.e., away from the housing body 121), and this port is used to communicate with the oil cooler 23. Thus, the oil delivered to the third connecting hole 1233 by the pump structure can flow into the oil cooler 23 through the third connecting hole 1233 to cool the oil.

[0077] Combination Figure 2 and Figure 4 As shown, the cylinder body 11 serves as the mounting carrier for the pump assembly 22, and the pump structure is connected and cooperates with the oil tank 21. The pump structure can pump the oil in the oil tank 21 to the cylinder body 11. The cylinder body 11 integrates an intermediate oil passage, which connects the pump assembly 22 and the third connecting hole 1233. This allows the oil pumped to the cylinder body 11 by the pump assembly 22 to flow into the third connecting hole 1233 through the intermediate oil passage, and further enter the oil cooler 23 through the third connecting hole 1233.

[0078] This saves on the piping structure layout in the engine 100, allowing the oil passage structure for oil supply to be integrated in the cylinder block 11. The pump structure pumps the oil to the intermediate oil passage in the cylinder block 11, and the oil flows into the oil cooler 23 through the intermediate oil passage and the third connecting hole 1233 in sequence. This facilitates the compact arrangement of the pump assembly 22, the engine 100 cylinder block 11, the oil pan 12, and the oil cooler 23, and helps to improve the space utilization of the engine 100.

[0079] In other words, the cylinder assembly 1 in this application integrates an intermediate oil passage within the cylinder block 11, allowing the pump assembly 22 to connect with the oil pan 12 and the oil cooler 23 via the intermediate oil passage. This reduces the number of pipes in the engine 100 and shortens the oil circulation path in the lubrication system 2, thereby improving oil circulation efficiency.

[0080] In a further embodiment of this application, the cylinder block 11 integrates multiple intermediate oil passages, and the pump assembly 22 can also be connected and cooperated with the oil suction port 1213 of the oil pan 12 through the intermediate oil passages. That is, the pump assembly 22 arranged on the cylinder block 11 is connected to the intermediate oil passages on the cylinder block 11, and can be further connected to the third connecting hole 1233 in the oil pan 12 and the pipeline structure arranged in the oil pan 12 through the intermediate oil passages.

[0081] In this application, a portion of the oil passage structure is integrated into the cylinder assembly 1 (i.e., cylinder block 11 or oil pan 12), which saves at least the piping structure between the pump assembly 22 and the oil cooler 23, between the oil cooler 23 and the oil filter 24, and between the oil filter 24 and the cylinder block 11. Furthermore, the cylinder assembly 1, pump assembly 22, oil cooler 23, and oil filter 24 are arranged compactly, thereby shortening the oil circulation path in the engine 100 and improving the cooling and filtration efficiency of the lubrication system 2 in the engine 100 for the oil.

[0082] In some embodiments of this application, the drive chain assembly 3 includes a drive shaft 223, the axial direction of which is parallel to the first direction.

[0083] Furthermore, the pump assembly 22 includes a first pump 221 and a second pump 222. The first pump 221 is mounted on the cylinder body 112 and is connected to the oil outlet side of the oil tank 21. The first pump 221 is used to pump oil to one side of the cylinder body 11, and the oil can flow into the oil cooler 23 through the cylinder body 11. The second pump 222 is mounted on the cylinder body 112 and is connected to the oil return side of the oil tank 21. The second pump 222 is used to pump the oil in the receiving tank 1211 to the oil tank 21 to realize the recovery of oil.

[0084] The first pump 221 and the second pump 222 are arranged sequentially along the first direction, and the first pump 221 and the second pump 222 are respectively poweredly connected to the drive shaft 223 so that multiple pump structures (i.e. the first pump 221 and the second pump 222 mentioned above) can be driven simultaneously through the same drive shaft 223, so that multiple pump structures can operate synchronously and ensure the circulation effect of oil in the lubrication system 2.

[0085] Combination Figure 1 and Figure 8 As shown, in some embodiments of this application, a plurality of oil suction ports 1213 are provided at the settling tank 1212. The plurality of oil suction ports 1213 are arranged at intervals along a first direction in the settling tank 1212. The pump assembly 22 includes a plurality of second pumps 222, which are arranged sequentially along the first direction, and each second pump 222 is connected to one oil suction port 1213, so that each second pump 222 can draw oil from the oil pan 12, ensuring the oil extraction effect of the pump assembly 22 in the oil pan 12 and reducing the risk of cavitation in the pump assembly 22. The second pumps 222 can be connected and cooperated with the oil suction ports 1213 through a collector arranged in the oil pan 12.

[0086] It should be noted that because engine oil is liquid, under the influence of inertia, under the aforementioned aggressive driving conditions (such as rapid acceleration, rapid deceleration, and hill climbing), the engine oil is not calm in the oil pan 12. It is tossed around with the changes in operating conditions, and may even expose the oil pump's suction port 1213 to the air. The intake of air not only increases the risk of bearing failure, but also causes the engine oil to foam, greatly reducing its lubrication performance and potentially leading to serious failures such as bearing failure and cylinder scoring in the engine 100.

[0087] In this application, the engine oil is mainly collected and stored in the oil tank 21, while the oil pan 12 contains a small amount of oil. The pump assembly 22 needs to quickly pump the oil splashed from the crankshaft into the oil tank 21. Moreover, the vehicle's operating conditions (rapid acceleration / rapid deceleration) will further affect the oil suction stability of the collector, and may even cause serious failures such as cylinder scoring or bearing seizure in the engine 100. This application solves this problem by providing multiple oil suction ports 1213 at the settling tank 1212, allowing the pump assembly 22 to draw engine oil from the settling tank 1212 from each of the multiple suction ports 1213.

[0088] It should be noted that the aforementioned "cylinder scoring" refers to the appearance of obvious longitudinal mechanical scratches or abrasions on the inner wall of the engine cylinder within the movement range of the piston rings. In severe cases, this can lead to fused wear (i.e., metal adhesion), resulting in a loss of cylinder sealing. The aforementioned "bearing seizure" refers to the melting and adhesion of the metal surfaces between the internal shafts of the engine (such as the crankshaft, connecting rod shaft, etc.) and the bearings due to poor lubrication or abnormal clearance, preventing normal operation. Both of these faults can be caused by insufficient engine lubrication.

[0089] When the first direction is parallel to the X-direction of the vehicle (i.e., the engine 100 is arranged in the front-to-back direction), the multiple oil suction ports 1213 in the sump 1212 are arranged at intervals in the front-to-back direction. Furthermore, when the vehicle is in conditions such as acceleration, deceleration, climbing, or descending, the oil in the oil pan 12 will flow to the front or rear side. At this time, the pump assembly 22 can still draw oil from the oil suction port 1213 through at least one of the multiple second pumps 222.

[0090] Specifically, when the vehicle is accelerating or climbing, the oil in the oil pan 12 will flow to the rear, and the oil can be drawn through the rear oil suction port 1213 among the multiple oil suction ports 1213; when the vehicle is decelerating or going downhill, the oil in the oil pan 12 will flow to the front, and the oil can be drawn through the front oil suction port 1213 among the multiple oil suction ports 1213.

[0091] Understandably, the two side walls of the sink 1212 in the second direction also restrain the engine oil, thus preventing the engine oil from flowing out of the sink 1212 when the vehicle turns left or right, ensuring the effective storage of engine oil in the sink 1212. This ensures that the lubrication system 2 of the engine 100 can continuously return oil.

[0092] In some embodiments of this application, the engine 100 is further provided with a first pipe section 43 and a second pipe section 44. The first pipe section 43 is connected between the outlet of the oil tank 21 and the first pump 221. The first pump 221 can pump the oil in the oil tank 21 from the first pipe section 43 to the intermediate oil passage of the cylinder block 11 to supply the oil in the oil tank 21 to one side of the cylinder assembly 1. The second pipe section 44 is connected between the return port of the oil tank 21 and the second pump 222. The second pump 222 can draw the oil from the oil pan 12 from the oil suction port 1213 and pump it back to the oil tank 21 through the second pipe section 44.

[0093] It should be noted that when multiple second pumps 222 are provided in the pump assembly 22, the multiple second pumps 222 are arranged in parallel relative to the second pipe section 44, and the multiple second pumps 222 are all connected to the second pipe section 44, so that the multiple second pumps 222 can pump oil into the second pipe section 44, thereby reducing the number of pipes provided in the engine 100.

[0094] In some embodiments of this application, an oil tank 21 is provided with a filter element, which is used to filter the oil in the oil tank 21 to ensure the oil supply effect of the oil tank 21.

[0095] It is understandable that the oil discharged from the oil tank 21 needs to flow into the oil cooler 23 after passing through the intermediate oil passage of the cylinder block 11 and the third connecting hole 1233 of the oil pan 12. Therefore, the impurities in the oil can be initially filtered by the filter element to prevent the impurities mixed in the oil from scratching the channel wall of the cylinder block 11.

[0096] In some embodiments of this application, the pump assembly 22 is fixed to the side of the cylinder block 11 (i.e., one side in the second direction), and the oil cooler 23 is mounted and fixed to the side of the oil pan 12 (i.e., one side in the second direction), so that the pump assembly 22 and the oil cooler 23 are located on the same side of the cylinder assembly 1, so that the pump assembly 22 and the oil cooler 23 are arranged in the vertical direction, and so that the pump assembly 22, the oil cooler 23 and the cylinder assembly 1 are arranged compactly, which can improve the space utilization of the engine 100.

[0097] Reference Figures 1-9 Describes the oil circulation path of the lubrication system 2 in the engine 100 according to an embodiment of this application: It is understandable that oil tank 21 is used to store engine oil, and the description is based on oil tank 21 as the starting point and the end point.

[0098] The first pump 221 pumps the engine oil from the oil tank 21 through the first pipe section 43 to the intermediate oil passage in the cylinder block 11, and further flows through the intermediate oil passage into the oil cooler 23 via the third connecting hole 1233. The oil cooler 23 is used to cool the engine oil. The cooled engine oil flows through the first connecting hole 1231 into the oil filter 24, which is used to filter the engine oil. The filtered engine oil flows through the second connecting hole 1232 into the oil passage formed on the cylinder block 11, and lubricates the components in the engine 100. The lubricated engine oil can flow back to the oil pan 12. The second pump 222 can draw the engine oil from the oil pan 12 through the oil suction port 1213 and pump the engine oil back to the oil tank 21 through the second pipe section 44. Thus, the engine oil is circulated in the lubrication system 2.

[0099] According to the embodiment of this application, the cylinder assembly 1 of the engine 100 serves as the mounting carrier for the pump assembly 22, the oil cooler 23, and the oil filter 24, making the components in the engine 100 fit together compactly and optimizing the oil circulation path, which can better meet the lubrication needs of the engine 100 and effectively utilize the space of the engine 100 and the vehicle's engine compartment.

[0100] According to a second aspect embodiment of this application, the vehicle includes the engine 100 described above.

[0101] The advantages of the vehicle and engine 100 compared to existing technologies are the same, and will not be repeated here.

[0102] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0103] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0104] In the description of this application, "multiple" means two or more.

[0105] In the description of this application, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or the first and second features being in contact through another feature between them.

[0106] In the description of this application, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0107] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0108] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. An engine, characterized in that, The crankshaft in the engine has an axial direction that is a first direction, and the width direction of the engine is a second direction. The engine includes: Cylinder assembly (1); Lubrication system (2), the lubrication system (2) comprising: Oil tank (21), the oil tank (21) is provided on one side of the cylinder assembly (1) in the second direction and is used to store oil; Pump assembly (22), which is fixed to the cylinder body (11) of cylinder assembly (1) and is used to drive the oil to circulate between the oil tank (21) and cylinder assembly (1); An oil cooler (23) is fixed in the oil pan (12) of the cylinder assembly (1). The oil cooler (23) is connected between the cylinder assembly (1) and the pump assembly (22) and is used to cool the oil. The oil tank (21), the pump assembly (22) and the oil cooler (23) are located on the same side of the cylinder assembly (1) in the second direction.

2. The engine according to claim 1, characterized in that, The oil cooler (23) is also provided with a water cooling channel for the flow of water cooling medium; The cylinder (11) has a liquid flow channel (111), the inlet port (1111) of the liquid flow channel (111) is connected to a water pump, the outlet port (1112) of the liquid flow channel (111) is connected to the oil cooler (23), and the inlet port (1111) and the outlet port (1112) are located on the same side of the cylinder (11) in the second direction. The cylinder (11) is provided with an inlet interface (1113), which is located at the end of the cylinder (11) on the first direction side and is used to communicate and cooperate with the outlet side of the water cooling flow channel.

3. The engine according to claim 2, characterized in that, The engine also includes: Liquid inlet pipe (41), the liquid inlet pipe (41) is connected between the liquid outlet port (1112) of the liquid flow channel (111) and the oil cooler (23); The outlet pipe (42) is connected between the oil cooler (23) and the inlet port (1113).

4. The engine according to claim 2, characterized in that, The engine further includes a drive chain assembly (3), which is disposed in the cylinder block (11) and poweredly connected between the crankshaft and the pump assembly (22) for transmitting power from the crankshaft to the pump assembly (22). The cylinder block (11) includes: The cylinder body (112) has the liquid flow channel (111) formed thereon. A drive chain mounting bracket (113) is provided at the end of the cylinder body (112) in the first direction and is used to mount the drive chain assembly (3).

5. The engine according to claim 4, characterized in that, The oil pan (12) is connected to the lower part of the cylinder body (112) and includes a shell body (121). The shell body (121) has an upwardly open receiving groove (1211). The receiving groove (1211) forms a sink groove (1212) extending along the first direction in the middle of the second direction. The sink groove (1212) is sunk from the bottom wall of the receiving groove (1211). The shell body (121) has an oil suction port (1213) at the sink groove (1212). The oil suction port (1213) is connected to the pump assembly (22) and is used to discharge oil from the receiving groove (1211).

6. The engine according to claim 5, characterized in that, The shell body (121) is provided with a first mounting seat (122) at one end in the first direction. The first mounting seat (122) is recessed into the receiving groove (1211) and a mounting cavity is formed in the lower direction of the shell body (121). The first mounting seat (122) is used to install an oil filter (24), and at least part of the oil filter (24) is placed in the mounting cavity. The housing body (121) is provided with a second mounting seat (123), the second mounting seat (123) is located on one side of the housing body (121) in the second direction, and is used to install the oil cooler (23), at least part of the second mounting seat (123) is arranged opposite to the mounting cavity in the second direction.

7. The engine according to claim 6, characterized in that, The second mounting base (123) is provided with a first connecting hole (1231), which is used to connect the oil cooler (23) and the oil filter (24) so ​​that the oil in the oil cooler (23) can flow into the oil filter (24) through the first connecting hole (1231). And / or, the first mounting base (122) is provided with a second connecting hole (1232), one end of the second connecting hole (1232) is connected to the oil filter (24), and the other end of the second connecting hole (1232) is located in the receiving groove (1211) and opens to the side of the engine block (11) for communication and cooperation with the engine block (11).

8. The engine according to claim 5, characterized in that, The drive chain assembly (3) includes a drive shaft, the axial direction of which is parallel to the first direction. The pump assembly (22) includes: The first pump (221) is located on the cylinder body (112) and connected to the oil outlet side of the oil tank (21), and is used to pump the oil to one side of the cylinder body (11), and the oil can flow into the oil cooler (23) through the cylinder body (11). The second pump (222) is located on the cylinder body (112) and connected to the oil return side of the oil tank (21), and is used to pump the oil in the accommodating tank (1211) to the oil tank (21). The first pump (221) and the second pump (222) are arranged sequentially along the first direction and are respectively poweredly connected to the drive shaft.

9. The engine according to claim 8, characterized in that, The settling tank (1212) is provided with a plurality of oil suction ports (1213), and the plurality of oil suction ports (1213) are arranged at intervals along the first direction in the settling tank (1212); There are multiple second pumps (222), and the multiple second pumps (222) are arranged sequentially along the first direction, and each second pump (222) is connected to one of the oil suction ports (1213).

10. A vehicle, characterized in that, Includes the engine according to any one of claims 1-9.

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