Engine and vehicle

Abstract

The application relates to the engine technical field, and provides an engine and a vehicle.The engine comprises a cylinder body, a water pump and a thermostat, the cylinder body is internally provided with a cylinder body water jacket, the water pump is arranged in the cylinder body and is communicated with a water inlet of the cylinder body water jacket, and the thermostat is arranged on the cylinder body, is located outside an upper surface of the cylinder body and is communicated with a water outlet of the cylinder body water jacket.Thus, the water pump and the thermostat are integrated in the cylinder body, the communication of the water pump and the cylinder body water jacket and the communication of the cylinder body water jacket and the thermostat do not need to be provided with external pipelines, the water pump and the thermostat are arranged in an integrated mode in the cylinder body, the engine can be more compact, installation and maintenance are more convenient, the water circuit is simplified, the cooling liquid flow resistance is reduced, space occupation is reduced, the number of cooling system pipelines and the number of sealing structures can be reduced, the assembly process is further simplified, and the manufacturing cost and the failure rate are reduced.

Description

Technical Field

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

[0002] In related technologies, engines require cooling structures for cooling, such as creating cavities and flow channels inside the cylinder block and circulating coolant to cool the combustion chamber. However, these cooling structures need to be connected to the thermostat, water pump, etc., which not only requires additional installation space, contradicting the compact design of the engine, but also leads to reduced assembly efficiency and increased manufacturing costs. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, one objective of the present invention is to provide an engine with a simple structure, small space occupation, and higher assembly efficiency, thereby reducing manufacturing costs.

[0004] This application further proposes a vehicle employing the aforementioned engine.

[0005] In a first aspect, this application provides an engine, including: a cylinder block, a water pump, and a thermostat, wherein a cylinder block water jacket is disposed inside the cylinder block; the water pump is disposed inside the cylinder block and communicates with the water inlet of the cylinder block water jacket; the thermostat is disposed in the cylinder block, the thermostat is located on the outer side of the upper surface of the cylinder block, and communicates with the water outlet of the cylinder block water jacket.

[0006] According to the engine embodiment of this application, the water pump and thermostat are integrated on the cylinder block. The connection between the water pump and the cylinder block water jacket, and the connection between the cylinder block water jacket and the thermostat, do not require external pipelines. The integrated arrangement of the water pump and thermostat on the cylinder block makes the engine more compact, easier to install and maintain, simplifies the water circuit, reduces coolant flow resistance, reduces space occupation, and also reduces the number of cooling system pipelines and sealing structures, further simplifying the assembly process and reducing manufacturing costs and failure rate.

[0007] According to some embodiments of this application, the cylinder body has a first cylinder bank and a second cylinder bank arranged opposite to each other in a first direction. The number of cylinders in the first cylinder bank and the second cylinder bank is at least one, and the plurality of cylinders are arranged sequentially along a second direction. The first direction and the second direction have an angle. The cylinder body water jacket includes a first cylinder water jacket and a second cylinder water jacket. The first cylinder water jacket and the second cylinder water jacket are respectively arranged corresponding to the first cylinder bank and the second cylinder bank. The projected outlines of the water inlets of the first cylinder water jacket and the second cylinder water jacket are adjacent to or located on the centerline of the cylinder body in the second direction.

[0008] According to some embodiments of this application, the cylinder water jacket further includes an inter-cylinder water jacket, which is located between the first cylinder water jacket and the second cylinder water jacket and is used to connect the first cylinder water jacket and the second cylinder water jacket. The end of the inter-cylinder water jacket connected to the first cylinder water jacket is located near the water inlet of the first cylinder water jacket.

[0009] According to some embodiments of this application, the water pump is connected to the inlet of the first cylinder water jacket, the inter-cylinder water jacket is located below the crankcase inside the cylinder body, and the water pump is located below the inter-cylinder water jacket.

[0010] According to some embodiments of this application, the cylinder water jacket further includes: a first discharge water jacket and a second discharge water jacket, wherein the first discharge water jacket and the second discharge water jacket are respectively connected to the first cylinder water jacket and the second cylinder water jacket, and both are connected to the thermostat.

[0011] According to some embodiments of this application, the projected outlines of the first discharge water jacket and the second discharge water jacket are both adjacent to or located on the centerline of the cylinder in the second direction.

[0012] According to some embodiments of this application, the thermostat is located between the first cylinder water jacket and the second cylinder water jacket, and the projected outline of the thermostat is located at or near the center of the cylinder block in the first direction.

[0013] According to some embodiments of this application, the water pump is disposed on the exhaust side of the first cylinder water jacket and the second cylinder water jacket, and the thermostat is disposed on the intake side of the first cylinder water jacket and the second cylinder water jacket.

[0014] According to some embodiments of this application, the cylinder water jacket is cast inside the cylinder body, and the cylinder body also has a first mounting seat and a second mounting seat for mounting the water pump and the thermostat, respectively.

[0015] Secondly, this application provides a vehicle including the engine described in the above embodiments.

[0016] Additional aspects and advantages of this invention 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 the invention. Attached Figure Description

[0017] The above and / or additional aspects and advantages of this utility model 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 illustrating the cooperation of the cylinder water jacket, water pump, and thermostat according to an embodiment of this application. Figure 2 This is a schematic diagram of an engine according to an embodiment of this application.

[0018] Figure label: Engine 100, Cylinder block 10, first cylinder bank 11, second cylinder bank 12, first cylinder water jacket 13, second cylinder water jacket 14, inter-cylinder water jacket 15, first discharge water jacket 16, second discharge water jacket 17. Water pump 20, thermostat 30 First direction X, second direction Y. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the description, claims, and accompanying drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy.

[0021] In this application, the reference to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment that is mutually exclusive with other embodiments.

[0022] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0023] In this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.

[0024] In the embodiments of this application, the same reference numerals denote the same components, and for the sake of brevity, detailed descriptions of the same components are omitted in different embodiments. It should be understood that the thickness, length, width, and other dimensions of various components in the embodiments of this application shown in the accompanying drawings, as well as the overall thickness, length, width, and other dimensions of the integrated device, are merely illustrative and should not constitute any limitation on this application.

[0025] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0026] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0027] In the description of this utility model, 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.

[0028] In this application, "multiple" means two or more (including two).

[0029] In related technologies, the engine cools the combustion chamber through a cooling system. The core function of the cooling system is to dissipate the heat generated by the engine into the air by circulating coolant, preventing mechanical damage, performance degradation, or lubricant failure caused by overheating. It also maintains the engine within its optimal operating temperature range, preventing parts from expanding and deforming due to high temperatures or lubrication failure.

[0030] Specifically, a cavity structure and a flow channel structure (i.e., cylinder water jacket) are created inside the cylinder block, and the combustion chamber is cooled by the circulation of coolant. However, the cooling structure needs to be connected to the thermostat, water pump, etc., which not only requires additional installation space, contradicting the compact design of the engine, but also leads to reduced assembly efficiency and increased manufacturing costs.

[0031] Based on this, this application proposes an engine in which a water pump and a thermostat are installed inside the cylinder block. Both the water pump and the thermostat are connected to the water jacket of the cylinder block, which can achieve a compact engine design, improve space utilization, reduce the number of external pipelines, improve assembly efficiency, and reduce manufacturing costs.

[0032] The following is for reference. Figures 1-2 This invention describes an engine 100 and a vehicle according to an embodiment of the present invention.

[0033] like Figure 1 As shown, this application provides an engine 100, including: a cylinder block 10, a water pump 20 and a thermostat 30. A cylinder block water jacket is provided inside the cylinder block 10; the water pump 20 is disposed inside the cylinder block 10 and is connected to the water inlet of the cylinder block water jacket; the thermostat 30 is disposed on the cylinder block 10, located on the outer side of the upper surface of the cylinder block 10 and is connected to the water outlet of the cylinder block water jacket.

[0034] Specifically, a cylinder block water jacket is provided inside the cylinder block 10. The cylinder block water jacket can be arranged around the cylinder (combustion chamber) to achieve cooling of the combustion chamber. The water pump 20 and the thermostat 30 can both be installed on the cylinder block 10. The water pump 20 is used to supply coolant to the cylinder block water jacket. After the coolant has completed sufficient heat exchange, it flows to the thermostat 30. The thermostat 30 can control the coolant to flow back to the water pump 20 for recirculation according to the temperature of the coolant, or flow to the external radiator for heat dissipation and then flow back to the water pump 20 for recirculation, so as to achieve stable and reliable cooling of the engine 100.

[0035] It should be noted that the thermostat 30 is located on the cylinder block 10. The thermostat 30 being located on the outer side of the upper surface of the cylinder block 10 means that the thermostat 30 can be located above the side surface of the cylinder block 10 facing the cylinder head of the engine and installed on the cylinder block 10 to achieve the integration of the water pump 20, the thermostat 30 and the cylinder block 10.

[0036] According to the embodiment of this application, the engine 100 integrates the water pump 20 and the thermostat 30 on the cylinder block 10. The connection between the water pump 20 and the cylinder block water jacket, and the connection between the cylinder block water jacket and the thermostat 30, do not require external pipelines. The integrated arrangement of the water pump 20 and the thermostat 30 on the cylinder block 10 makes the engine 100 more compact, easier to install and maintain, simplifies the water circuit, reduces coolant flow resistance, reduces space occupation, and also reduces the number of cooling system pipelines and sealing structures, further simplifying the assembly process and reducing manufacturing costs and failure rates.

[0037] like Figure 1 and Figure 2 As shown, according to some embodiments of this application, the cylinder body 10 has a first cylinder bank 11 and a second cylinder bank 12 arranged opposite to each other in a first direction. The number of cylinders in the first cylinder bank 11 and the second cylinder bank 12 is at least one, and the multiple cylinders are arranged sequentially along a second direction, with the first direction and the second direction having an angle.

[0038] In other words, the engine 100 in this application embodiment can be constructed as a horizontally opposed structure, or as a V-shaped structure, W-shaped structure, etc., with two cylinder banks, and the two cylinder banks (i.e., the first cylinder bank 11 and the second cylinder bank 12) can be arranged opposite to each other in a first direction, such as a horizontally opposed four-cylinder engine, a six-cylinder engine, etc.

[0039] It should be noted that, due to the symmetrical cylinder layout along the first direction, the cooling system of the opposed engine 100 typically requires a dual-circulation water circuit or complex cross-cylinder connection piping, thus presenting the following problems: (1) Piping redundancy: The cylinder water jackets of the first cylinder bank 11 and the second cylinder bank 12 need to be independently connected to the water pump 20 and the thermostat 30. The number of water pumps 20 and thermostats 30 is large, which will lead to complex external pipeline intersections and increase the risk of leakage. (2) Large space occupation: The water pump 20 and thermostat 30 are arranged independently and require additional installation space, which contradicts the compact design of the engine 100; (3) Low assembly efficiency: Multiple pipeline connections increase assembly steps and increase manufacturing costs.

[0040] Based on this, this application sets up an inter-cylinder water jacket 15, a first discharge water jacket 16, and a second discharge water jacket 17, so that a water pump 20 and a thermostat 30 integrated inside the engine 100 can realize the flow of coolant in two parallel coolant flow paths (the path where the first cylinder water jacket 13 is located and the path where the second cylinder water jacket 14 is located). Moreover, the water pump 20 and the thermostat 30 are both set on the cylinder block 10, which can improve space occupation, reduce the number of parts, improve pipeline redundancy, reduce leakage risk, improve assembly efficiency, simplify assembly process, and significantly reduce manufacturing costs, which will be described in detail below.

[0041] like Figure 1 As shown, the cylinder water jacket of this application includes: a first cylinder water jacket 13 and a second cylinder water jacket 14. The first cylinder water jacket 13 and the second cylinder water jacket 14 are respectively provided for the first cylinder bank 11 and the second cylinder bank 12. The projected outlines of the water inlets of the first cylinder water jacket 13 and the second cylinder water jacket 14 are adjacent to or located on the centerline of the cylinder 10 in the second direction.

[0042] In other words, the first cylinder water jacket 13 corresponds to the first cylinder bank 11, and the second cylinder water jacket 14 corresponds to the second cylinder bank 12. The first cylinder water jacket 13 and the second cylinder water jacket 14 are arranged opposite to each other in the first direction. The coolant is pumped into the first cylinder water jacket 13 and the second cylinder water jacket 14 by the water pump 20 respectively. The first cylinder water jacket 13 achieves sufficient cooling of the first cylinder bank 11, and the second cylinder water jacket 14 achieves sufficient cooling of the second cylinder bank 12.

[0043] Furthermore, the inlets of the first cylinder water jacket 13 and the second cylinder water jacket 14 are both arranged on the centerline of the cylinder block 10 in the second direction, or adjacent to the centerline of the cylinder block 10 in the second direction. This allows the first cylinder water jacket 13 to be symmetrically arranged on the centerline of the second direction for multiple water jacket sections corresponding to multiple cylinders in the first cylinder bank 11. The coolant in the multiple water jacket sections can be diverted from the inlet adjacent to the centerline of the second direction. Similarly, the multiple water jacket sections of multiple cylinders in the second cylinder bank 12 are symmetrically arranged on the centerline of the second direction. The coolant in the multiple water jacket sections can also be diverted from the inlet adjacent to the centerline of the second direction. This improves the uniformity of coolant flow in the first cylinder water jacket 13 and the second cylinder water jacket 14, resulting in a more even distribution. This reduces the probability of local overheating, improves the cooling effect, and enhances the working stability of the engine 100.

[0044] exist Figure 1 In the embodiments shown, according to some embodiments of this application, the cylinder water jacket further includes: an inter-cylinder water jacket 15, which is located between the first cylinder water jacket 13 and the second cylinder water jacket 14, and is used to connect the first cylinder water jacket 13 and the second cylinder water jacket 14. The end of the inter-cylinder water jacket 15 connected to the first cylinder water jacket 13 is located near the water inlet of the first cylinder water jacket 13.

[0045] The inter-cylinder water jacket 15 extends generally along the first direction, with one end connected to the first cylinder water jacket 13 and the other end connected to the inlet of the second cylinder water jacket 14. The position where the inter-cylinder water jacket 15 connects to the first cylinder water jacket 13 is located near the inlet of the first cylinder water jacket 13, so that the coolant can be taken from the second cylinder water jacket 13 through the inter-cylinder water jacket 15.

[0046] It should be noted that the water pump 20 drives the coolant into the first cylinder water jacket 13. Part of the coolant directly cools the first cylinder bank 11, while the other part flows into the second cylinder water jacket 14 through the inter-cylinder water jacket 15. This allows a single water pump 20 to drive the coolant to cool two cylinder banks (the first cylinder bank 11 and the second cylinder bank 12), which can reduce the number of water pumps 20, lower costs, and eliminate the need for external connecting pipes between the first cylinder bank 11 and the second cylinder bank 12, reducing flow resistance and leakage points, and improving reliability and stability.

[0047] Furthermore, the second cylinder water jacket 14 takes coolant from the inlet of the first cylinder water jacket 13. The coolant's flow path from the inlet of the first cylinder water jacket 13 into the inter-cylinder water jacket 15 is shorter, reducing the impact on the internal flow field of the first cylinder water jacket 13 and improving the cooling uniformity of the engine's more than 100 cylinders. Figure 1 As shown, according to some embodiments of this application, the water pump 20 is connected to the water inlet of the first cylinder water jacket 13, the inter-cylinder water jacket 15 is located below the crankcase (the space inside the cylinder 10 used to accommodate the crankshaft) inside the cylinder body 10, and the water pump 20 is located below the inter-cylinder water jacket 15.

[0048] Specifically, in the first direction, the first cylinder water jacket 13 and the second cylinder water jacket 14 are arranged opposite to each other, and the gap between them forms a crankcase for mounting the crankshaft. In the height direction, there is a certain space below the crankcase, where the inter-cylinder water jacket 15 and the water pump 20 are both arranged below the crankcase, and the water pump 20 is located below the inter-cylinder water jacket 15, so that the water pump 20 is located at the lowest line of the cylinder water jacket to supply coolant to the first cylinder water jacket 13 and the second cylinder water jacket 14.

[0049] In this way, the inter-cylinder water jacket 15 can be located inside the cylinder block 10 and can span the crankshaft, thus achieving cooling of the cylinder block 10 portion where the crankshaft is located and improving the cooling effect of the engine 100. The water pump 20 and the inter-cylinder water jacket 15 can both be arranged below the crankcase, which can make full use of the internal space of the crankcase inside the cylinder block 10, achieving a compact layout and further improving space occupancy. At the same time, placing the water pump 20 at the lowest point of the coolant flow path can also shorten the distance between the water pump 20 and the components used to store coolant, further reducing the piping length and lowering costs.

[0050] like Figure 1 As shown, according to some embodiments of this application, the cylinder water jacket further includes: a first discharge water jacket 16 and a second discharge water jacket 17, the first discharge water jacket 16 and the second discharge water jacket 17 being connected to the first cylinder water jacket 13 and the second cylinder water jacket 14 respectively, and both being connected to the thermostat 30.

[0051] Specifically, the coolant in the first cylinder water jacket 13 corresponding to the first cylinder bank 11 and the second cylinder water jacket 14 corresponding to the second cylinder bank 12 can be combined to the thermostat 30 through the first discharge water jacket 16 and the second discharge water jacket 17 respectively. This can further reduce the exposed pipes, reduce heat loss, and improve the response speed of the thermostat 30.

[0052] Understandably, this can further reduce the number of thermostats 30, requiring only one thermostat 30, which can further reduce material costs and reduce the external piping of the opposed engine 100. It can also achieve the integrated arrangement of water pump 20 and thermostat 30 on cylinder block 10, reducing space occupation, reducing the number of cooling system pipes and seals, simplifying the assembly process, and reducing manufacturing costs and failure rate.

[0053] Furthermore, it is understandable that the thermostat 30 is located on the side of the cylinder block 10 near the cylinder head and on the outside of the cylinder block 10. This can reduce the length of the connecting pipe between the thermostat 30 and the radiator mounted on the periphery of the cylinder block 10, thereby further reducing costs, improving flow resistance, and increasing cooling efficiency. At the same time, the radiator can be located near the intake side of the engine 100, where the temperature is relatively low, resulting in less impact on the radiator's heat dissipation. The coolant can be cooled sufficiently, which can further improve the cooling effect and efficiency of the engine 100.

[0054] See Figure 1 As shown, according to some embodiments of this application, the projected outlines of the first discharge water jacket 16 and the second discharge water jacket 17 are both adjacent to or located on the centerline of the cylinder body 10 in the second direction.

[0055] Specifically, one end of the first discharge water jacket 16 is connected to the first cylinder water jacket 13, and the other end of the first discharge water jacket 16 is connected to the thermostat 30. One end of the second discharge water jacket 17 is connected to the second cylinder water jacket 14, and the other end of the second discharge water jacket 17 is connected to the thermostat 30, so as to realize the convergence of coolant. The projected outlines of the first discharge water jacket 16 and the second discharge water jacket 17 are adjacent to or located on the centerline of the cylinder block 10 in the second direction, so that the coolant cooled by multiple cylinders in the first cylinder bank 11 and multiple cylinders in the second cylinder bank 12 can be collected in the middle position of the first cylinder water jacket 13 and the second cylinder water jacket 14 respectively, and then flow out to the thermostat 30. This can reduce the flow resistance of the coolant, increase the flow speed, and improve the cooling effect and cooling efficiency.

[0056] Furthermore, the thermostat 30 is located between the first cylinder water jacket 13 and the second cylinder water jacket 14, and the projected outline of the thermostat 30 is located at or near the center of the cylinder block 10 in the first direction, and the thermostat 30 is located above the upper surface of the cylinder block 10. Under the premise of improving space occupation, reducing the difficulty of arranging the thermostat 30, and realizing the connection between one thermostat 30 and two cylinder water jackets, the flow path lengths of the coolant flowing from the first cylinder water jacket 13 to the thermostat 30 and the coolant flowing from the second cylinder water jacket 14 to the thermostat 30 are similar. It can also further reduce flow resistance, improve the confluence effect, reduce the turbulence caused by different flow velocities, and further improve cooling efficiency and cooling effect.

[0057] It should be noted that in the embodiments of this application, the first direction can be the width direction of the cylinder body 10, and the second direction can be the length direction of the cylinder body 10.

[0058] According to some embodiments of this application, the water pump 20 is disposed on the exhaust side of the first cylinder water jacket 13 and the second cylinder water jacket 14, and the thermostat 30 is disposed on the intake side of the first cylinder water jacket 13 and the second cylinder water jacket 14.

[0059] Specifically, the water pump 20 is located near the intake side of the first cylinder water jacket 13 and the second cylinder water jacket 14, while the thermostat 30 is located on the intake side of the first cylinder water jacket 13 and the second cylinder water jacket 14. This allows the cooling medium pumped out by the water pump 20 at a low initial temperature to first act on the higher temperature exhaust side and then flow to the lower temperature intake side. The thermostat 30 located near the intake side also allows the radiator connected to the thermostat 30 to be located near the intake side, thereby reducing the impact of the higher temperature exhaust side on the radiator.

[0060] In this way, the coolant can first cool the exhaust side, which has a higher initial temperature. The coolant has a lower initial temperature and a better cooling effect on the exhaust side. This can further improve the cooling effect of the engine 100 and enhance the working stability and reliability of the engine 100.

[0061] According to some embodiments of this application, the cylinder water jacket is cast inside the cylinder 10, and the cylinder 10 also has a first mounting seat and a second mounting seat for mounting the water pump 20 and the thermostat 30, respectively.

[0062] Specifically, the first mounting seat is located below the crankcase, and the second mounting seat is formed on the upper surface of the cylinder block 10 facing the cylinder head. The first mounting seat, the second mounting seat, and the cylinder block water jacket are all integrally cast into the cylinder block 10. The first mounting seat is located inside the cylinder block 10, and the second mounting seat is located above the upper surface of the cylinder block 10. They are used to fix the water pump 20 and the thermostat 30, respectively. Only bolts are needed to fasten the water pump 20 and the thermostat 30, which can reduce independent pipelines and their fasteners, further simplify the structure, reduce space occupation, reduce assembly difficulty, improve assembly efficiency, and reduce manufacturing costs.

[0063] In summary, according to the engine 100 of this application embodiment, an inter-cylinder water jacket 15 is provided between the first cylinder water jacket 13 and the second cylinder water jacket 14. The second cylinder water jacket 14 takes coolant from the inlet of the first cylinder water jacket 13. The inter-cylinder water jacket 15 is cast below the crankcase. The first cylinder water jacket 13 and the second cylinder water jacket 14 are respectively connected to the first discharge water jacket 16 and the second discharge water jacket 17. The first discharge water jacket 16 and the second discharge water jacket 17 are both connected to the thermostat 30. This can reduce the number of connecting pipes and related components (such as seals), reduce the risk of leakage, and make the engine 100 more compact and more reliable. At the same time, the water pump 20 and the thermostat 30 are directly connected to the cylinder block water jacket and are highly integrated with the cylinder block 10, making the engine 100 more compact, easier to install and maintain, and simplifying the water circuit to reduce coolant flow resistance.

[0064] Specifically, the cylinder block water jacket (including the first cylinder water jacket 13, the second cylinder water jacket 14, the inter-cylinder water jacket 15, the first discharge water jacket 16, and the first discharge water jacket 17) is cast inside the cylinder block 10, forming two coolant flow paths corresponding to the first cylinder bank 11 and the second cylinder bank 12. Not only is the coolant flow path inside the cylinder block 10 longer, which can improve the cooling effect, but only one thermostat 30 and one water pump 20 need to be set, which can simplify the cooling system structure of the engine 100 and reduce costs.

[0065] Furthermore, the second cylinder water jacket 14 can draw water from the first cylinder water jacket 14 side through the inter-cylinder water jacket 15. The inter-cylinder water jacket 15 can be located below the crankcase, and the first discharge water jacket 16 and the first discharge water jacket 17 are connected to the thermostat 30. This can reduce the number of additional connecting pipes and related components, reduce the risk of leakage, and make the overall layout of the engine 100 more compact and more reliable.

[0066] In addition, the inlet and outlet of the first cylinder water jacket 14 and the second cylinder water jacket 15 are both located near the centerline of the cylinder block 10 in the first direction. The thermostat 30 is located on the centerline of the first cylinder water jacket 14 and the second cylinder water jacket 15 in the second direction, which can achieve uniform distribution of coolant, make the coolant distribution among multiple cylinders more uniform, reduce the probability of local overheating of the engine 100, and improve reliability and safety.

[0067] This application provides a vehicle, including: the engine 100 in the above embodiments.

[0068] According to the embodiments of this application, the vehicle using the above-mentioned engine 100 not only has a better cooling effect, which can improve the stability and reliability of the vehicle, but also has a smaller space occupation, which can reduce the space occupation of the engine compartment, reduce the difficulty of arranging internal components of the engine compartment of the vehicle 100, facilitate the expansion of passenger compartment space, improve the driving and riding comfort of the vehicle 100, and reduce the overall vehicle cost.

[0069] Other components and operations of the vehicle according to the embodiments of this utility model are known to those skilled in the art and will not be described in detail here.

[0070] 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 the present invention. 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.

[0071] Although embodiments of the present invention 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 the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An engine, characterized in that, include: Cylinder body (10), wherein a cylinder water jacket is provided inside the cylinder body (10); A water pump (20) is installed inside the cylinder (10) and is connected to the inlet of the water jacket of the cylinder. Thermostat (30) is disposed on the cylinder body (10). The thermostat (30) is located on the outer side of the upper surface of the cylinder body (10) and is connected to the outlet of the water jacket of the cylinder body.

2. The engine according to claim 1, characterized in that, The cylinder body (10) has a first cylinder bank (11) and a second cylinder bank (12) arranged opposite to each other in a first direction. The number of cylinders in the first cylinder bank (11) and the second cylinder bank (12) is at least one, and the multiple cylinders are arranged sequentially along a second direction. The first direction and the second direction have an angle. The cylinder body water jacket includes a first cylinder water jacket (13) and a second cylinder water jacket (14). The first cylinder water jacket (13) and the second cylinder water jacket (14) are respectively arranged corresponding to the first cylinder bank (11) and the second cylinder bank (12). The projected outlines of the water inlets of the first cylinder water jacket (13) and the second cylinder water jacket (14) are adjacent to or located on the centerline of the cylinder body (10) in the second direction.

3. The engine according to claim 2, characterized in that, The cylinder water jacket further includes an inter-cylinder water jacket (15), which is located between the first cylinder water jacket (13) and the second cylinder water jacket (14) and is used to connect the first cylinder water jacket (13) and the second cylinder water jacket (14). The end of the inter-cylinder water jacket (15) connected to the first cylinder water jacket (13) is located near the water inlet of the first cylinder water jacket (13).

4. The engine according to claim 3, characterized in that, The water pump (20) is connected to the inlet of the first cylinder water jacket (13), the cylinder water jacket (15) is located below the crankcase inside the cylinder body (10), and the water pump (20) is located below the cylinder water jacket (15).

5. The engine according to claim 2, characterized in that, The cylinder water jacket also includes a first discharge water jacket (16) and a second discharge water jacket (17), the first discharge water jacket (16) and the second discharge water jacket (17) are respectively connected to the first cylinder water jacket (13) and the second cylinder water jacket (14), and both are connected to the thermostat (30).

6. The engine according to claim 5, characterized in that, The projected outlines of the first discharge water jacket (16) and the second discharge water jacket (17) are both adjacent to or located on the centerline of the cylinder (10) in the second direction.

7. The engine according to claim 6, characterized in that, The thermostat (30) is located between the first cylinder water jacket (13) and the second cylinder water jacket (14), and the projected outline of the thermostat (30) is located at or near the center of the cylinder block (10) in the first direction.

8. The engine according to claim 5, characterized in that, The water pump (20) is located on the exhaust side of the first cylinder water jacket (13) and the second cylinder water jacket (14), and the thermostat (30) is located on the intake side of the first cylinder water jacket (13) and the second cylinder water jacket (14).

9. The engine according to any one of claims 1-8, characterized in that, The cylinder water jacket is cast inside the cylinder (10), and the cylinder (10) also has a first mounting seat and a second mounting seat for mounting the water pump (20) and the thermostat (30) respectively.

10. A vehicle, characterized in that, include: The engine according to any one of claims 1-9.

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