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, the width direction of the engine is a second direction, and the engine comprises: an oil cooler, the oil cooler is provided with a water cooling flow channel, the water cooling flow channel is used for liquid medium flow; a cylinder body, the cylinder body has a liquid flow channel, a liquid inlet port of the liquid flow channel is communicated with a water pump, a liquid outlet port of the liquid flow channel is communicated with the oil cooler, the liquid inlet port and the liquid outlet port are located on the same side of the cylinder body in the second direction, the cylinder body is provided with a liquid inlet interface, the liquid inlet interface is arranged at an end position on the side of the cylinder body in the first direction and is used for being communicated with a liquid outlet side of the water cooling flow channel. Therefore, the liquid flow channel is integrated at the cylinder body, the length of pipeline required to be arranged in the engine is saved, the risk of liquid leakage of the engine is reduced in the mode of reducing the number of parts, the overall weight of the engine is reduced, and the lightweight design of the engine is facilitated.

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, lightweight engine design aims to improve fuel efficiency, reduce emissions, and enhance performance by reducing weight. According to a report by the Society of Automotive Engineers (SAE), lightweighting can significantly reduce overall vehicle energy consumption; for every 10% reduction in weight, fuel efficiency can improve by approximately 6-8%.

[0003] In related technologies, the cylinder block has a large number of connected components, making it prone to oil and fluid leaks. These leaks can lead to deterioration of engine mechanical performance, increased safety risks, environmental pollution, increased economic costs, and decreased long-term reliability. Oil and fluid leaks are typically caused by seal failure, corrosion, or mechanical damage, and in some cases, by cylinder block cracks. Cylinder block leaks directly impair engine efficiency and reliability, affect engine performance (e.g., overheating and wear), and even threaten safety. Utility Model Content

[0004] This application aims to address at least one of the technical problems existing in the prior art. To this end, one objective of this application is to provide an engine that integrates a flow channel structure, thereby improving the integration of the engine.

[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: an oil cooler with a water-cooled channel for supplying a liquid medium; a cylinder block with 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 also has an inlet port located at the end of the cylinder block on one side in the first direction and is used to communicate and cooperate with the outlet side of the water-cooled channel.

[0006] According to some embodiments of this application, in the vertical direction, the liquid flow channel is located near the end of the cylinder where the liquid inlet interface is located, and the liquid inlet interface is located between the liquid inlet port and the liquid outlet port.

[0007] According to some embodiments of this application, in the projection in the first direction, the projection of the liquid flow channel avoids the projection of the liquid inlet; and / or, the liquid flow channel has a clearance section that extends in an arc shape and avoids the liquid inlet, and in the projection in the first direction, the liquid inlet is located on one side of the arc-shaped opening of the clearance section. Thus, by forming a clearance structure at the liquid flow channel, interference between the liquid inlet and the liquid flow channel can be avoided while ensuring a compact arrangement, thereby guaranteeing the circulation effect of the cooling medium in the cylinder.

[0008] According to some embodiments of this application, the engine includes: a lubrication system including the pump assembly for driving the flow of engine oil in the lubrication system; and a drive chain assembly disposed in the cylinder block and poweredly connected between the crankshaft and the pump assembly to transmit power from the crankshaft and act on the pump assembly.

[0009] According to some embodiments of this application, the cylinder body includes: a cylinder body having the liquid flow channel formed thereon; and a drive chain mounting seat disposed at the end of the cylinder body in the first direction and having a cavity structure for mounting the drive chain assembly.

[0010] According to some embodiments of this application, the drive chain assembly includes an upper guide rail, a lower guide rail, and a drive shaft. The drive shaft is dynamically connected to the pump assembly, and the drive chain mounting base includes: a first mounting portion for mounting the upper guide rail of the drive chain assembly; a second mounting portion, which is vertically spaced from the first mounting portion and is used to mount the lower guide rail of the drive chain assembly; and a mounting hole for mounting and supporting the drive shaft. Thus, the drive chain assembly can be reliably assembled at the drive chain mounting base using multiple mounting portions (such as the first mounting portion, the second mounting portion, and the mounting hole described above).

[0011] According to some embodiments of this application, the cylinder block further includes reinforcing ribs, and a portion of the drive chain mounting bracket protrudes from the cylinder body towards the second direction, with the reinforcing ribs connecting the protruding portion of the drive chain mounting bracket to the cylinder body. Thus, the reinforcing ribs provided between the drive chain mounting bracket and the cylinder body enhance the structural strength of the cylinder block, reduce the number of connecting brackets required during engine assembly, and improve the engine's NVH performance. According to some embodiments of this application, the liquid flow channel includes: an inlet flow channel section, one end of which forms the inlet port; an outlet flow channel section, one end of which forms the outlet port; and a main flow channel section, which connects the inlet flow channel section and the outlet flow channel section, and the end of the main flow channel section has a gradually expanding section; wherein the gradually expanding section communicates with the inlet flow channel section and is gradually expanded towards the inlet port, and the maximum flow cross-sectional dimension of the gradually expanding section is larger than the flow cross-sectional dimension of the inlet flow channel section; and / or, the gradually expanding section communicates with the outlet flow channel section and is gradually expanded towards the outlet port, and the maximum flow cross-sectional dimension of the gradually expanding section is larger than the flow cross-sectional dimension of the outlet flow channel section. Therefore, the gradually expanding section reduces the machining difficulty of the liquid flow channel and reduces the risk of tool damage during machining. According to some embodiments of this application, the engine further includes an oil pan connected to the bottom of the cylinder block, and the oil cooler is installed on one side of the oil pan in the second direction, and the oil cooler is located on the side of the cylinder block where the outlet port is formed in the second direction.

[0012] According to the engine embodiments of this application, the engine block integrates a liquid flow channel and a drive chain mounting base, thereby improving the integration of the engine in the cylinder block. This reduces the number of components required in the engine (such as bolts and other connecting components, sealing strips, gaskets, and other sealing components), solving the leakage problem caused by the cooperation of multiple components, and enabling a lightweight engine design. Simultaneously, the oil cooler can be used to cool the water-cooled medium in the engine, and the oil cooler is located in the second direction on the side of the cylinder block where the aforementioned liquid outlet port is formed, facilitating connection and cooperation between the liquid outlet port and the oil cooler, reducing the complexity of the piping design in the engine.

[0013] According to a second aspect of the present application, the vehicle includes the engine described above.

[0014] Another objective of this application is to propose a vehicle.

[0015] According to a second aspect of this application, the vehicle includes the engine described above.

[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 2 This is a partial schematic diagram of an engine according to one embodiment of this application; Figure 3 This is a schematic diagram of the cylinder block according to an embodiment of this application; Figure 4 This is a partial schematic diagram of a cylinder block according to an embodiment of this application; Figure 5 This is a partial cross-sectional view of the cylinder block according to an embodiment of this application.

[0019] Figure label: Engine 100; Cylinder body 1; Liquid flow channel 101; Liquid inlet port 1011; Liquid outlet port 1012; Liquid inlet interface 1013; Liquid outlet flow channel section 1014; Main flow channel section 1015; Clearance section 1016; Diverging section 1017; Cylinder body 11; Drive chain mounting base 12; First mounting part 121; Second mounting part 122; Mounting hole 123; Reinforcing rib 13; Oil cooler 2; Lubrication system 3; Pump assembly 31; First pump 311; Second pump 312; 4. Oil reservoir; 5. Oil pan. 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] The following is for reference. Figures 1-5 The engine 100 according to an embodiment of this application is described. The engine 100 is provided with a crankshaft. The axial direction of the crankshaft is defined as a first direction, and the width direction of the engine 100 is defined as a second direction. The second direction is set perpendicular to the first direction.

[0022] According to the first aspect of the present application, the engine 100 includes an oil cooler 2 and a cylinder block 1. The oil cooler 2 is provided with a water cooling channel for the flow of water cooling medium, so that the water cooling medium can be cooled down when it flows through the water cooling channel, so that when the water cooling medium flows into the cylinder block 1 again, it can cool one side of the cylinder block 1.

[0023] Combination Figure 1 , Figure 2 as well as Figure 3 As shown, the cylinder body 1 is provided with a liquid flow channel 101. The liquid inlet port 1011 of the liquid flow channel 101 is connected to a water pump (not shown in the figure), and the liquid outlet port 1012 of the liquid flow channel 101 is connected to an oil cooler 2. The liquid inlet port 1011 and the liquid outlet port 1012 are located on the same side of the cylinder body 1 in the second direction. The cylinder body 1 is provided with only a liquid inlet interface 1013. The liquid inlet interface 1013 is located at the end of the cylinder body 1 on one side in the first direction. The liquid inlet interface 1013 is used to connect and cooperate with the liquid outlet side of the water cooling flow channel so as to realize that the water cooling medium cooled by the oil cooler 2 flows back to the cylinder body 1.

[0024] It should be noted that the inlet side of the water pump can be connected and cooperated with other locations in the engine 100 (such as the cylinder head structure in the engine 100) so that after the water-cooling medium in the engine 100 is discharged from the cylinder block 1, the water pump can transport the water-cooling medium to the liquid flow channel 101 again. The liquid flow channel 101 integrated in the cylinder block 1 is equivalent to a partial pipeline structure, which helps to reduce the length of the pipeline for the water-cooling medium to flow in the engine 100 and contributes to the lightweight design of the engine 100.

[0025] The liquid inlet port 1011 of the liquid flow channel 101 is used to allow liquid to flow into the liquid flow channel 101. After flowing through the liquid flow channel 101, the liquid medium can be discharged through the liquid outlet port 1012 and further flow into the oil cooler 2, so that the oil cooler 2 can achieve cooling and temperature reduction of the water-cooled medium. At the same time, since the liquid inlet port 1011 and the liquid outlet port 1012 of the liquid flow channel 101 are located on the same side of the cylinder block 1 in the second direction, the water pump and pipeline structure that communicate and cooperate with the liquid flow channel 101 are arranged on the same side of the cylinder block 1, which facilitates the compact arrangement of the components in the engine 100 and helps to improve the space utilization of the engine 100.

[0026] Furthermore, a liquid inlet 1013 is provided at one end of the cylinder block 1 in the first direction. The liquid inlet 1013 is used to connect and cooperate with the liquid outlet side of the water cooling channel. That is to say, the water cooling medium discharged through the water cooling channel can flow into the liquid inlet 1013 to deliver the water cooling medium to the cylinder block 1, thereby realizing the circulation of the water cooling medium in the engine 100.

[0027] Combination Figure 1 and Figure 2As shown, the liquid flow channel 101 is preferably located in the cylinder block 1 near the liquid inlet port 1013, that is, the liquid flow channel 101 is arranged near the end of the cylinder block 1 in the first direction, so that the liquid flow channel 101 can be arranged close to the liquid inlet port 1013, and the oil cooler 2 is also arranged near the position where the liquid flow channel 101 is formed in the cylinder block 1, thereby shortening the distance between the oil cooler 2 and the liquid outlet port 1012 of the liquid flow channel 101, which helps to save the layout length of the pipeline structure and improve the compactness of the fit between the components in the engine 100.

[0028] It is understandable that the engine 100 is equipped with a lubrication system, which is used to lubricate the components of the engine 100 (such as pistons, crankshafts, etc.), thereby improving the operational stability of the engine 100 and extending its service life. The oil cooler 2 mentioned above can also be used to cool the lubricating medium (such as engine oil) in the lubrication system.

[0029] Combination Figure 1 and Figure 2 As shown, it should be noted that the engine 100 also includes an oil pan 5, which is connected to the bottom of the cylinder block 1. Part of the lubricating medium in the engine 100 can be contained in the oil pan 5, and the oil pan 5 serves as the mounting carrier for the oil cooler 2, so that the oil cooler 2 can be installed and fixed at the oil pan 5, thereby achieving a tight assembly between the oil cooler 2 and the oil pan 5.

[0030] Currently, the lightweight design of Engine 100 aims to improve fuel efficiency, reduce emissions, and enhance performance by reducing weight. According to a report by the Society of Automotive Engineers (SAE), lightweighting can significantly reduce overall vehicle energy consumption; for every 10% reduction in weight, fuel efficiency can be improved by approximately 6-8%. Among these components, the cylinder block 1, as a core structural component of Engine 100, plays a crucial role in improving vehicle fuel efficiency, reducing carbon emissions, and optimizing dynamic performance through lightweighting. This lightweighting is primarily achieved through material innovation and design optimization, aiming to reduce overall weight without sacrificing strength or durability.

[0031] Meanwhile, the cylinder block 1 is the core component of the engine 100, and its weight will affect the overall performance. Excessive weight may lead to a number of negative impacts, including reduced fuel efficiency, decreased acceleration performance, worsened handling, increased costs, and adverse environmental effects.

[0032] In related technologies, the large number of connected components at the cylinder block 1 makes the engine 100 prone to oil and fluid leaks, leading to degradation of the engine 100's mechanical performance, increased safety risks, environmental pollution, increased economic costs, and decreased long-term reliability. Oil and fluid leaks are typically caused by seal failure, corrosion, or mechanical damage, and in some cases, by cracks in the cylinder block 1. Oil and fluid leaks at the cylinder block 1 directly impair the engine 100's operating efficiency and reliability, affect its performance (e.g., overheating and wear), and even threaten safety (e.g., fire and accident risks).

[0033] In this application, a liquid flow channel 101 is integrated into the cylinder block 1 of the engine 100, allowing the water pump to deliver water-cooling medium to the liquid flow channel 101 and further deliver it to the oil cooler 2. This improves the local cooling effect of the cylinder block 1 (i.e., the area of ​​the cylinder block 1 with the liquid flow channel 101) and reduces the length of piping required in the engine 100. By reducing the number of components, the risk of leakage in the engine 100 is reduced, and the overall weight of the engine 100 is also reduced, contributing to the lightweight design of the engine 100. Furthermore, the inlet port 1011 and outlet port 1012 of the liquid flow channel 101 are located on the same side of the cylinder block 1 in the second direction, allowing the water pump and piping structure to be arranged on the same side of the cylinder block 1. This improves the compactness of the component arrangement in the engine 100 and saves the required space.

[0034] Therefore, by integrating the liquid flow channel 101 at the end of the cylinder block 1, the engine 100 can reduce the number of parts that need to be arranged in the engine 100 and the interfaces between the parts, which helps to reduce the risk of liquid leakage in the engine 100.

[0035] Combination Figure 2 and Figure 3 As shown, in some embodiments of this application, in the vertical direction, the liquid inlet 1013 is located between the liquid inlet port 1011 and the liquid outlet port 1012, so that the liquid inlet 1013 is located close to the bottom of the cylinder block 1, thereby shortening the distance between the liquid inlet 1013 and the oil cooler 2 fixed at the oil pan 5, and making it easier to set the liquid inlet 1013 in an area that avoids the liquid flow channel 101.

[0036] It should be noted that a cylinder block water jacket (not shown in the figure) is formed in the cylinder block 1. The water-cooling medium flowing into the cylinder block 1 through the liquid inlet 1013 can flow into the cylinder block water jacket, thereby achieving water cooling of the cylinder block 1. At the same time, the liquid inlet 1013 is located at the end of the cylinder block 1 in the first direction, which makes it easy to expose the liquid inlet 1013 and reduce the difficulty of connecting the liquid inlet 1013 and the oil cooler 2 through the pipeline structure.

[0037] In this application, the liquid flow channel 101 is located near the end of the cylinder body 1 where the liquid inlet interface 1013 is provided. By positioning the liquid inlet interface 1013 in the height direction between the liquid inlet port 1011 and the liquid outlet port 1012, it is convenient to arrange the liquid inlet interface 1013 to avoid the liquid flow channel 101, and the compactness of the arrangement of the liquid flow channel 101 and the liquid inlet interface 1013 in the cylinder body 1 can be improved.

[0038] In a further embodiment of this application, in the projection of the liquid flow channel 101 in the first direction, the projection of the liquid flow channel 101 avoids the projection of the liquid inlet interface 1013, thereby improving the compactness of the arrangement of the liquid flow channel 101 and the liquid inlet interface 1013, while avoiding interference between the liquid flow channel 101 and the liquid inlet interface 1013, so as to ensure the flow effect of the water cooling medium at the liquid flow channel 101 or the liquid inlet interface 1013 and reduce the risk of leakage.

[0039] In some embodiments of this application, the liquid flow channel 101 has a clearance section 1016, which extends in an arc shape and is disposed to avoid the liquid inlet interface 1013. Moreover, in the projection in the first direction, the liquid inlet interface 1013 is located on the side of the arc-shaped opening of the clearance section 1016, thereby effectively preventing interference between the liquid inlet interface 1013 and the liquid flow channel 101.

[0040] Understandably, the specific arrangement and extension direction of the avoidance section 1016 can be set according to the position of the liquid inlet 1013 to ensure the compact arrangement of the liquid flow channel 101 and the liquid inlet 1013, and to ensure the basic wall thickness of the cylinder block 1. At the same time, the arc-shaped avoidance section 1016 can play a good guiding role for the water cooling medium, reduce the resistance encountered by the water cooling medium when flowing through the liquid flow channel 101, reduce the energy loss of the fluid, and ensure the effective delivery of the water cooling medium pumped by the water pump into the liquid flow channel 101 to the oil cooler 2 side.

[0041] Combination Figure 1 and Figure 2 As shown, in some embodiments of this application, the engine 100 includes a lubrication system and a drive chain assembly. The lubrication system includes a pump assembly 31, which is used to drive the flow of oil in the lubrication system to realize the circulation and delivery of oil in the engine 100 and ensure the lubrication performance of the engine 100.

[0042] Furthermore, the drive chain assembly is mounted on the cylinder block 1, and the drive chain assembly is powered between the crankshaft and the pump assembly 31, so as to transmit the power at the crankshaft to the pump assembly 31 through the drive chain assembly, thereby realizing the pumping function of the pump assembly 31.

[0043] It is understandable that the engine oil in the lubrication system is a lubricating medium used to lubricate the components in the engine 100, and the engine oil needs to flow through the aforementioned oil cooler 2 during its circulation process in order to cool down the engine oil.

[0044] It should be noted that in the lubrication system, the engine oil is circulated by the pump assembly 31. For example, the pump assembly 31 draws engine oil from the oil pan 5 and delivers it to the oil reservoir 4, and then pumps the engine oil from the oil reservoir 4 to the cylinder block 1, etc. In this application, the pump assembly 31 is powered by the crankshaft in the engine 100 through a drive chain assembly, thereby utilizing the driving force output from the crankshaft to drive the pump assembly 31, thus enabling the pump assembly 31 to operate.

[0045] Combination Figure 1 and Figure 2 As shown, in some embodiments of this application, the pump assembly 31 may include a first pump 311 and a second pump 312. The first pump 311 is disposed on the cylinder body 11 and is connected to the oil outlet side of the oil reservoir 4. The first pump 311 is used to pump oil to one side of the cylinder body 1, so that the oil can flow into the cylinder body 1, and the oil flowing into the cylinder body 1 can further flow from the cylinder body 1 into the oil cooler 2. The second pump 312 is also disposed on the cylinder body 11 and is connected to the oil return side of the oil reservoir 4. The second pump 312 is used to pump the oil in the oil pan 5 into the oil reservoir 4. Thus, the oil circulation and delivery in the engine 100 can be realized.

[0046] Reference Figure 1 As shown, the first pump 311 and the second pump 312 are arranged sequentially along the first direction and are respectively poweredly connected to a drive shaft (not shown in the figure). The drive shaft can apply driving force to the first pump 311 and the second pump 312 respectively to realize the operation of the first pump 311 and the second pump 312. Thus, multiple pump structures (i.e., the first pump 311 and the second pump 312 mentioned above) can be driven by the same drive shaft, which can reduce the number of parts in the engine 100, improve the compactness of the pump assembly 31 and the cylinder block 1, and improve the space utilization of the engine 100.

[0047] Combination Figure 1 , Figure 2 as well as Figure 3As shown, in some embodiments of this application, the cylinder body 1 includes a cylinder body 11 and a drive chain mounting seat 12. The cylinder body 11 forms the liquid flow channel 101 described above. The drive chain mounting seat 12 is disposed at the end of the cylinder body 11 in a first direction and is used to mount the drive chain assembly described above.

[0048] It is understood that the drive chain mounting base 12 serves as the mounting carrier for the drive chain assembly. The drive chain mounting base 12 can be enclosed to form a cavity structure, which is used to accommodate the aforementioned drive chain assembly, providing a space for the drive chain assembly and providing a shielding and protective effect for the drive chain assembly. Simultaneously, the drive chain mounting base 12 is located on one side of the cylinder body 11 in the first direction, which can prevent interference between the drive chain mounting base 12 and other components (such as pistons) arranged in the cylinder body 1. Furthermore, it allows the drive chain assembly to be arranged in an area suitable for crankshaft connection and mating, enabling the drive chain assembly to be powered by the portion of the crankshaft extending out of the cylinder body 11.

[0049] Preferably, the drive chain mounting base 12 is located at one end of the cylinder body 11 where the aforementioned liquid inlet 1013 and liquid flow channel 101 are formed, so that the components of the engine 100 are compactly arranged on one side of the cylinder body 1. Figure 1 , Figure 2 as well as Figure 3 As shown, the oil cooler 2, pump assembly 31, and piping structure are all arranged close to one end of the cylinder block 1 in the first direction, and the oil cooler 2, pump assembly 31, and piping structure are all located on one side of the cylinder block 1 in the second direction. This makes the various components (such as piping structure, interface structure, etc.) and devices (such as pump assembly 31, oil cooler 2, etc.) in the engine 100 more compact, which helps to reduce the number of piping structures and the length of piping structures in the engine 100, thereby achieving a lightweight design of the engine 100.

[0050] In some embodiments of this application, the drive chain mounting base 12 is integrally formed with the cylinder body 11 to reduce the number of assembly parts required between the cylinder body 11 and the drive chain mounting base 12, improve the integration of the cylinder body 1, and thus avoid oil leakage problems caused by the cooperation between different parts.

[0051] It is understandable that the drive chain mounting bracket 12 can be integrally formed with the cylinder body 11 by casting, which can ensure the reliability of the connection between the drive chain mounting bracket 12 and the cylinder body 11, and reduce the number of connecting parts (such as bolts, gaskets, etc.), thereby reducing the overall disassembly and assembly difficulty of the engine 100.

[0052] Combination Figure 3 and Figure 4As shown, in some embodiments of this application, the cylinder body 1 further includes a reinforcing rib 13, which is used to improve the structural strength of the cylinder body 1. A portion of the drive chain mounting seat 12 protrudes from the cylinder body 11 in a second direction, and the reinforcing rib 13 connects the portion of the drive chain mounting seat 12 protruding from the cylinder body 11 to the cylinder body 11, thereby improving the structural strength at the drive chain mounting seat 12.

[0053] It is understandable that, since the drive chain mounting bracket 12 protrudes from the cylinder body 11 in the second direction, the portion of the drive chain mounting bracket 12 protruding from the cylinder body 11 is suspended relative to the cylinder body 11. By providing a reinforcing rib 13 between the suspended portion of the drive chain mounting bracket 12 and the cylinder body 11, the structural strength of the cylinder body 1 can be improved, the NVH (Noise, Vibration, Harshness) performance of the engine 100 can be improved, the number of connecting brackets required when assembling the engine 100 in the vehicle can be reduced, and the lightweight design of the vehicle can be achieved.

[0054] Therefore, by providing reinforcing ribs 13 between the drive chain mounting bracket 12 and the cylinder body 11, the structural strength of the cylinder body 1 is improved, the number of connecting brackets required during engine 100 assembly is reduced, and the NVH performance of the engine 100 is improved. Reference Figure 3 As shown, in some embodiments of this application, the drive chain assembly (not shown) includes an upper guide rail, a lower guide rail, and a drive shaft. The drive shaft is poweredly connected to the pump assembly 31, and the drive chain mounting base 12 includes a first mounting part 121, a second mounting part 122, and a mounting hole 123.

[0055] Specifically, the first mounting part 121 is used to mount the upper guide rail in the drive chain assembly; the second mounting part 122 and the first mounting part 121 are arranged vertically at intervals, and the second mounting part 122 is used to mount the lower guide rail in the drive chain assembly; the mounting hole 123 is used to mount the support drive shaft.

[0056] The first mounting part 121 and the second mounting part 122 can be constructed as a hole structure, so that the upper guide rail and the lower guide rail can be fastened to the drive chain mounting base 12 by connecting components such as bolts, which makes the assembly method simple and highly reliable.

[0057] It should be noted that the specific structure of the drive chain assembly is not shown in the accompanying drawings. The drive chain assembly also includes a transmission chain, an upper guide rail and a lower guide rail for guiding the movement trajectory of the transmission chain, and for adjusting the tension of the transmission chain. These are transmission components well known to those skilled in the art, and will not be described in detail here.

[0058] In some embodiments of this application, the liquid flow channel 101 includes: an inlet flow channel section (not shown in the figure), a main flow channel section 1015, and an outlet flow channel section 1014. Specifically, one end of the inlet flow channel section forms an inlet port 1011, one end of the outlet flow channel section 1014 forms an outlet port 1012, the main flow channel section 1015 connects the inlet flow channel section and the outlet flow channel section 1014, and the end of the main flow channel section 1015 forms a gradually widening section 1017. The inlet flow channel section and the outlet flow channel section 1014 extend in a straight line.

[0059] In some embodiments, the expanding section 1017 is connected to the inlet flow channel section, and the expanding section 1017 is gradually expanded towards the inlet port 1011, and the maximum flow cross-sectional dimension of the expanding section 1017 is greater than the flow cross-sectional dimension of the inlet flow channel section; in some embodiments, the expanding section 1017 is connected to the outlet flow channel section 1014, and the expanding section 1017 is gradually expanded towards the outlet port 1012, and the maximum flow cross-sectional dimension of the expanding section 1017 is greater than the flow cross-sectional dimension of the outlet flow channel section 1014.

[0060] Combination Figure 3 and Figure 5 As shown, Figure 3 The arrows in the diagram illustrate the flow path of the water-cooling medium in the liquid channel 101. Figure 5 The diagram shows the connection and cooperation area between the main flow channel section 1015 and the outlet flow channel section 1014, and the aforementioned gradually expanding section 1017 is formed at the end of the main flow channel section 1015 (i.e., the end where the main flow channel section 1015 and the outlet flow channel section 1014 are connected and cooperated). The outlet flow channel section 1014 has the same or similar structure as the inlet flow channel section.

[0061] Reference Figure 5 As shown, the cross-sectional size of the expanding section 1017 in the main flow channel 1015 gradually increases towards the liquid outlet flow channel 1014. That is, the expanding section 1017 is set in a gradually expanding shape towards the liquid outlet flow channel 1014, so that the outer contour of the main flow channel 1015 at the connection position with the liquid outlet flow channel 1014 is larger than the diameter of the liquid outlet flow channel 1014. This can reduce the lateral force of the tool during the machining of the liquid flow channel 101 and reduce the risk of tool breakage during the machining process.

[0062] Combination Figure 1 , Figure 2 as well as Figure 3As shown, in some embodiments of this application, the engine 100 is a V-type engine. The V-type engine has small height and length dimensions, making it convenient for vehicle placement and facilitating control of the engine 100's ground clearance. Simultaneously, the V-type engine divides all cylinders into two groups, arranging adjacent cylinders together at a certain angle, so that the two groups of cylinders form a plane with an angle, giving the cylinders a V-shape when viewed from the side.

[0063] Combination Figure 1 and Figure 2 As shown, in some embodiments of this application, the engine further includes an oil pan 5, which is connected to the bottom of the cylinder block 1. An oil cooler 2 is installed on one side of the oil pan 5 in a second direction, and the oil cooler 2 is located on the side of the cylinder block 1 in the second direction where the outlet port 1012 is formed. This shortens the distance between the outlet port 1012 and the oil cooler 2, making it easier to connect and cooperate the outlet port 1012 and the oil cooler 2 through a pipeline structure.

[0064] It is understood that in the engine 100, the coolant outlet port 1012 is located on one side of the cylinder block 1 in the second direction, and the oil cooler 2 is located on one side of the oil pan 5 in the second direction. The cylinder block 1 and the oil pan 5 are arranged and fixed in the vertical direction, and the coolant outlet port 1012 is used to discharge the cooling medium to the oil cooler 2. In this application, by fixing the oil cooler 2 to the oil pan 5, the distance between the oil cooler 2 and the cylinder block 1 is short (i.e., the arrangement is compact). The coolant outlet port 1012 is formed in the second direction on the side of the cylinder block 1 where the oil cooler 2 is located, thereby shortening the distance between the coolant outlet port 1012 and the oil cooler 2, so as to save the length of the pipeline used to connect the coolant outlet port 1012 and the oil cooler 2.

[0065] Combination Figures 1-5 Describe the circulation path of the water-cooling medium in the engine 100 according to an embodiment of this application: The water-cooling medium discharged from the cylinder head water jacket of the engine 100 can enter the water pump and be pumped to the inlet port 1011 so that the water-cooling medium flows into the liquid flow channel 101. The water-cooling medium can be discharged from the outlet port 1012 and flow into the oil cooler 2 through the pipeline structure. The water-cooling medium cooled by the oil cooler 2 can be pumped to the inlet port 1013 of the cylinder block 1 through the pipeline structure so that the cooled water-cooling medium is pumped back into the cylinder block water jacket to achieve water-cooling cooling of the engine 100.

[0066] A pump structure can be installed on the pipeline structure between the water cooling medium outlet of the oil cooler 2 and the liquid inlet structure of the cylinder block 1 to apply driving force to the water cooling medium and ensure the delivery effect of the water cooling medium.

[0067] In summary, the engine 100 according to the embodiments of this application has at least the following advantages over the prior art: The cylinder block 1 of the engine 100 integrates a liquid flow channel 101 and a drive chain mounting seat 12, thereby improving the integration of the engine 100 at the cylinder block 1. This allows the engine 100 to form a compact arrangement at the cylinder block 1, reducing the number of components required in the engine 100 (such as bolts and other connecting components, sealing strips, gaskets, and other sealing components). This solves the leakage problem caused by the cooperation of multiple components and enables a lightweight design of the engine 100. Simultaneously, it allows for a compact fit between components in the engine 100 (such as the cylinder block 1, oil cooler 2, and oil pan 5), improving the utilization rate of components at the engine 100 and reducing the difficulty of arranging the engine in the vehicle's engine compartment.

[0068] According to a second aspect embodiment of this application, the vehicle includes the engine 100 described above.

[0069] The vehicle described above has the same advantages as the engine 100 compared to existing technologies, which will not be repeated here.

[0070] 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.

[0071] In the description of this application, "first feature" and "second feature" may include one or more of the features.

[0072] In the description of this application, "multiple" means two or more.

[0073] 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.

[0074] 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.

[0075] 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.

[0076] 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: Oil cooler (2), wherein the oil cooler (2) is provided with a water cooling channel, wherein the water cooling channel is used for the flow of liquid medium; The cylinder (1) has a liquid flow channel (101). The inlet port (1011) of the liquid flow channel (101) is connected to a water pump. The outlet port (1012) of the liquid flow channel (101) is connected to the oil cooler (2). The inlet port (1011) and the outlet port (1012) are located on the same side of the cylinder (1) in the second direction. The cylinder (1) is provided with an inlet interface. The inlet interface is located at the end of the cylinder (1) on the first direction side and is used to communicate and cooperate with the outlet side of the water cooling flow channel.

2. The engine according to claim 1, characterized in that, In the vertical direction, the liquid flow channel (101) is located near the end of the cylinder (1) where the liquid inlet interface is located, and the liquid inlet interface is located between the liquid inlet port (1011) and the liquid outlet port (1012).

3. The engine according to claim 2, characterized in that, In the projection in the first direction, the projection of the liquid flow channel (101) avoids the projection of the liquid inlet interface; And / or, the liquid flow channel (101) has a clearance section that extends in an arc shape and clearances the liquid inlet, and in the projection in the first direction, the liquid inlet is located on the side of the arc-shaped opening of the clearance section.

4. The engine according to claim 1, characterized in that, The engine includes: A lubrication system, the lubrication system including a pump assembly (31) for driving the flow of oil in the lubrication system; A drive chain assembly is disposed in the cylinder block (1) and is powered between the crankshaft and the pump assembly (31) to transmit power from the crankshaft to the pump assembly (31).

5. The engine according to claim 4, characterized in that, The cylinder (1) includes: The cylinder body (11) has the liquid flow channel (101) formed thereon. A drive chain mounting base (12) is provided at the end of the cylinder body (11) in the first direction and forms a cavity structure for mounting the drive chain assembly.

6. The engine according to claim 5, characterized in that, The drive chain assembly includes an upper guide rail, a lower guide rail, and a drive shaft. The drive shaft is poweredly connected to the pump assembly (31), and the drive chain mounting base (12) includes: The first mounting part (121) is used to mount the upper guide rail in the drive chain assembly; The second mounting part (122) and the first mounting part (121) are arranged vertically at intervals and are used to mount the lower guide rail in the drive chain assembly; Mounting hole (123) for mounting support of the drive shaft.

7. The engine according to claim 5, characterized in that, The cylinder body (1) also includes a reinforcing rib (13), a portion of the drive chain mounting seat (12) protrudes from the cylinder body (11) in the second direction, and the reinforcing rib (13) is connected between the portion of the drive chain mounting seat (12) protruding from the cylinder body (11) and the cylinder body (11).

8. The engine according to claim 1, characterized in that, The liquid flow channel (101) includes: The liquid inlet channel section, one end of which forms the liquid inlet port (1011). The liquid outlet flow channel section (1014) has one end forming the liquid outlet port (1012). A main channel section (1015) connects the inlet flow channel section and the outlet flow channel section (1014), and the end of the main channel section (1015) forms a gradually widening section; wherein, The expanding section is connected and cooperates with the liquid inlet channel section, and is arranged in a gradually expanding shape towards the liquid inlet port (1011), and the maximum flow cross-sectional size of the expanding section is greater than the flow cross-sectional size of the liquid inlet channel section; And / or, the expanding section is connected to the liquid outlet channel section (1014) and is arranged in a gradually expanding shape toward the liquid outlet port (1012), and the maximum flow cross-sectional size of the expanding section is greater than the flow cross-sectional size of the liquid outlet channel section (1014).

9. The engine according to any one of claims 1-8, characterized in that, The engine also includes an oil pan (5) connected to the bottom of the cylinder block (1), and an oil cooler (2) installed on one side of the oil pan (5) in the second direction, and the oil cooler (2) is located on the side of the cylinder block (1) where the outlet port (1012) is formed in the second direction.

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

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