Engine and vehicle

Abstract

The present application discloses an engine and a vehicle, and belongs to the field of engine technology. The engine includes a cylinder block and a cylinder head. The cylinder block is provided with a first cooling groove and a second cooling groove, the second cooling groove is arranged around the cylinder barrel in the cylinder block, the first cooling groove is located between the outer wall of the cylinder block and the second cooling groove, and the first cooling groove and the second cooling groove are interconnected. When the engine is cooled, the coolant flows into the first cooling groove, a part of the coolant in the first cooling groove flows into the cylinder head, and the other part flows into the second cooling groove. By adopting the technical solution provided in the present application, the cylinder head and cylinder block of the engine can be cooled more appropriately, so that the engine can maintain normal performance.

Description

Technical Field

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

[0002] When the engine is in operation, the temperature of the gas in the cylinder can generally reach 2000-2500℃. If the engine cannot be cooled in time, it is easy to cause the normal gap between the moving parts in the engine to be destroyed or even stuck, reducing the mechanical strength of the engine; or causing the engine power to drop, the fuel consumption to increase, and even causing the mixture to spontaneously ignite and explode; or causing the oil temperature to be too high and the viscosity to decrease, thereby aggravating the friction and wear of the parts. In other words, the engine needs to be cooled in time, otherwise it will reduce the overall performance of the engine.

[0003] In the related art, a cooling passage is generally arranged around the cylinder barrel in the engine to cool the cylinder barrel. Part of the coolant flowing into the cylinder body will flow to the cylinder head, thereby cooling the cylinder head. However, this cooling passage will cause the cylinder head to not be cooled in time and the cylinder barrel to be overcooled. Then, when the engine is cold-started, it will not be able to warm up quickly, which will lead to high fuel consumption of the engine. At the same time, since the fuel may not be fully burned, it is easy to increase emissions. Furthermore, since the cylinder head cannot be fully cooled, it is easy to cause serious wear of the structure inside the cylinder head, which in turn affects the normal use of the engine. In other words, the use of this cooling structure cannot reasonably and fully cool the internal components of the engine, which is easy to reduce the performance of the engine. Summary of the invention

[0004] In view of this, the present application provides an engine and a vehicle, which can more appropriately cool the cylinder head and cylinder body of the engine so that the engine can maintain normal performance.

[0005] In one aspect, an embodiment of the present application provides an engine, the engine comprising a cylinder block and a cylinder head;

[0006] The cylinder body is provided with a first cooling groove and a second cooling groove, the second cooling groove is arranged around the cylinder barrel in the cylinder body, the first cooling groove is located between the outer wall of the cylinder body and the second cooling groove, and the first cooling groove and the second cooling groove are interconnected;

[0007] When the engine is cooled, the coolant flows into the first cooling groove, a part of the coolant in the first cooling groove flows into the cylinder head, and the other part flows into the second cooling groove.

[0008] Optionally, the volume of the first cooling groove is greater than the volume of the second cooling groove.

[0009] Optionally, a liquid inlet is provided on the wall of the first cooling groove, and the coolant flows into the first cooling groove from the liquid inlet;

[0010] The connecting point between the first cooling groove and the second cooling groove is far away from the liquid inlet.

[0011] Optionally, the engine further comprises a contour plate, the contour plate is similar in shape to the second cooling groove, and the contour plate is located in the second cooling groove.

[0012] Optionally, the thickness of the profiling plate is smaller than the width of the second cooling groove, and the height of the profiling plate is smaller than the depth of the second cooling groove.

[0013] Optionally, the first cooling grooves are arranged along a first direction;

[0014] The second cooling groove comprises a first sub-cooling groove close to the first cooling groove and a second sub-cooling groove far from the first cooling groove, wherein the first sub-cooling groove and the second sub-cooling groove are arranged along the first direction, one end of the first sub-cooling groove is connected to one end of the second sub-cooling groove, and the other end of the first sub-cooling groove is connected to the other end of the second sub-cooling groove;

[0015] The cylinder comprises at least two sub-cylinders arranged side by side along the first direction;

[0016] The cylinder body is further provided with a third cooling groove, and the third cooling groove is located between the two sub-cylinder barrels, and both ends of the third cooling groove are respectively connected with the first sub-cooling groove and the second sub-cooling groove.

[0017] Optionally, the opening of the third cooling groove faces the cylinder head, and the depth of the third cooling groove is less than the depth of the cylinder barrel.

[0018] Optionally, the cylinder body is further provided with a connecting through hole, the connecting through hole is located between the two sub-cylinder barrels, a first end of the connecting through hole is connected to the first sub-cooling groove, and a second end of the connecting through hole is connected to the second sub-cooling groove.

[0019] Optionally, the distance between the first end of the communicating through hole and the bottom of the cylinder is a first distance, the distance between the second end of the communicating through hole and the bottom of the cylinder is a second distance, and the first distance is greater than the second distance.

[0020] On the one hand, an embodiment of the present application provides a vehicle, comprising an engine as described above.

[0021] The engine provided by the embodiment of the present application includes a cylinder block and a cylinder head. The cylinder block is provided with a first cooling groove and a second cooling groove, the first cooling groove is arranged near the outer wall of the cylinder block, the second cooling groove is arranged around the cylinder barrel of the cylinder block, and the first cooling groove and the second cooling groove are mutually connected. When the engine is cooled, the coolant flows into the first cooling groove, a part of the coolant in the first cooling groove flows into the cylinder head, and another part flows into the second cooling groove. Thus, the coolant used to cool the engine can flow directly into the cylinder head to cool the cylinder head, while another part of the coolant can flow into the second cooling groove at the same time to cool the cylinder barrel. With such an arrangement, the cylinder head and the cylinder barrel can be cooled separately, and the coolant flowing through the cylinder head no longer flows around the cylinder barrel, so that the cylinder head can be fully cooled to a certain extent while the cylinder barrel can not be overcooled. That is, the cylinder head and the cylinder barrel of the engine can be cooled more appropriately respectively, so that the engine can maintain normal performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 is an exploded diagram of an engine provided in an embodiment of the present application;

[0024] Figure 2 is a schematic diagram of a coolant flow channel in an engine provided by an embodiment of the present application;

[0025] Figure 3 It is an exploded view of a cylinder block and a contour plate in an engine provided by an embodiment of the present application;

[0026] Figure 4 yes Figure 2 A partial schematic diagram of a coolant circulation channel in an engine provided in an embodiment of the present application.

[0027] Reference numerals:

[0028] 100, cylinder body;

[0029] 110. A first cooling tank;

[0030] 120, a second cooling tank;

[0031] 130, cylinder;

[0032] 140, a third cooling tank;

[0033] 150, connecting through hole;

[0034] 111, liquid inlet;

[0035] 112. Connecting point;

[0036] 121, first sub-cooling tank;

[0037] 122. a second sub-cooling tank;

[0038] 200, cylinder head;

[0039] 300, profiling plate;

[0040] 400, cylinder gasket;

[0041] 410, first through hole;

[0042] A1. First direction.

[0043] The above drawings have shown clear embodiments of the present application, which will be described in more detail later. These drawings and text descriptions are not intended to limit the scope of the present application in any way, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0044] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0045] Unless otherwise defined, all technical terms used in the embodiments of the present application have the same meanings as commonly understood by those skilled in the art.

[0046] In order to make the technical solutions and advantages of the present application more clear, the implementation methods of the present application will be further described in detail below with reference to the accompanying drawings.

[0047] Combination Figure 1 As shown, an embodiment of the present application provides an engine, which includes a cylinder block 100 and a cylinder head 200. The cylinder block 100 is provided with a first cooling groove 110 and a second cooling groove 120, the second cooling groove 120 is arranged around a cylinder barrel 130 in the cylinder block 100, the first cooling groove 110 is located between the outer wall of the cylinder block 100 and the second cooling groove 120, and the first cooling groove 110 and the second cooling groove 120 are interconnected. When the engine is cooled, the coolant flows into the first cooling groove 110, a part of the coolant in the first cooling groove 110 flows into the cylinder head 200, and the other part flows into the second cooling groove 120.

[0048] It should be noted that the cylinder block 100 is the main body of the engine. The cylinder block 100 connects the cylinders and the crankcase together and is the supporting frame for installing the piston, crankshaft and other parts and accessories. The cylinder is composed of a cylinder barrel 130, an end cover, a piston, a seal and other structures. The cylinder head 200 is used to seal the cylinder and form a combustion chamber. Since the temperature of the gas in the cylinder can generally reach 2000-2500°C when the engine is in operation, it is necessary to cool the engine in time to avoid excessive temperature affecting the normal use of the engine.

[0049] When the engine provided by the embodiment of the present application is used to cool the engine, the coolant used to cool the engine can flow directly into the cylinder head 200 to cool the cylinder head 200, while another portion of the coolant can flow into the second cooling groove 120 at the same time to cool the cylinder barrel 130. With such a configuration, the cylinder head 200 and the cylinder barrel 130 can be cooled separately, and the coolant flowing through the cylinder head 200 no longer flows around the cylinder barrel 130, so that the cylinder head 200 can be fully cooled to a certain extent while the cylinder barrel 130 can be not overcooled. That is, the cylinder head 200 and the cylinder barrel 130 of the engine can be cooled more appropriately, so that the engine can maintain normal performance.

[0050] The following is combined with Figures 1 to 4 The details and functions of the engine provided in the embodiment of the present application are described in more detail.

[0051] like Figure 2 As shown, in some embodiments, a liquid inlet 111 is provided on the groove wall of the first cooling groove 110, and the coolant flows into the first cooling groove 110 from the liquid inlet 111. The connecting point 112 between the first cooling groove 110 and the second cooling groove 120 is far away from the liquid inlet 111. It can be understood that since the connecting point 112 is far away from the liquid inlet 111 of the first cooling groove 110, the coolant flowing into the first cooling groove 110 from the liquid inlet 111 can flow into the cylinder head 200 first, so that the cylinder head 200 can be cooled preferentially, so as to fully cool the cylinder head 200. In addition, the coolant that has not flowed into the cylinder head 200 will flow into the second cooling groove 120 after flowing to the connecting point 112, so as to cool the cylinder barrel 130 in the cylinder body 100. Through this arrangement, the cylinder head 200 and the cylinder barrel 130 of the engine can be cooled more appropriately, so that the engine can maintain normal performance, avoiding the phenomenon of overcooling of the cylinder barrel 130 and insufficient cooling of the cylinder head 200, and thus the engine can maintain normal performance. It should be noted that the location of the liquid inlet 111 can be appropriately adjusted according to different engine structures. Figure 1 The liquid inlet 111 is only an example.

[0052] In some embodiments, the liquid inlet 111 is connected to a first water pump (not shown) arranged at the front end of the cylinder body 100. It should be noted that the accessory belt of the engine is used to provide power for the first water pump, so that the coolant in the first water pump can be pumped into the first cooling tank 110.

[0053] In some embodiments, the liquid inlet 111 is connected to a second water pump (not shown) arranged at the rear end of the cylinder head 200. It should be noted that the camshaft of the engine (not shown) is used to provide power for the second water pump, so that the coolant in the second water pump can be pumped into the first cooling tank 110.

[0054] In some embodiments, the volume of the first cooling groove 110 is greater than the volume of the second cooling groove 120. It is understandable that, by such a configuration, most of the coolant in the first cooling groove 110 can flow into the cylinder head 200, ensuring the priority cooling and sufficient cooling of the cylinder head 200. At the same time, a small portion of the coolant in the first cooling groove 110 flows into the second cooling groove 120 to cool the cylinder body 100, and can also avoid the phenomenon of overcooling of the cylinder body 100. This reasonable and sufficient cooling can enable the engine to maintain normal performance. When the engine is cold started, it can ensure that the engine can be quickly warmed up in a very short time, which can reduce fuel consumption and emissions.

[0055] like Figure 1 As shown, in some embodiments, the engine further includes a cylinder gasket 400, which is located between the cylinder head 200 and the cylinder block 100. It should be noted that the cylinder gasket 400 is used to fill the gap between the cylinder block 100 and the cylinder head 200, to ensure good sealing at the joint surface of the cylinder head 200 and the cylinder block 100, thereby ensuring the sealing of the combustion chamber and preventing air or water leakage.

[0056] In some embodiments, the cylinder gasket 400 is provided with a first through hole 410, and the coolant in the first cooling groove 110 flows into the corresponding cooling passage in the cylinder head 200 through the first through hole 410 to cool the cylinder head 200. The number of the first through hole 410 can be one, two or more. Figure 1 The structure schematic diagram of the cylinder gasket 400 is provided with a plurality of first through holes 410. In some embodiments, the shape of the first through hole 410 is the same as the opening shape of the first cooling groove 110, so that most of the coolant in the first cooling groove 110 can flow to the cooling passage in the cylinder head 200 through the first through hole 410 in time, so as to ensure the priority cooling and sufficient cooling of the cylinder head 200.

[0057] like Figure 3As shown, in some embodiments, the engine further comprises a profiling plate 300, the profiling plate 300 is similar in shape to the second cooling groove 120, and the profiling plate 300 is located in the second cooling groove 120. It should be noted that, since the profiling plate 300 is placed in the second cooling groove 120, the profiling plate 300 can occupy part of the space in the second cooling groove 120, thereby reducing the amount of coolant that needs to be filled into the second cooling groove 120, thereby reducing the total amount of coolant that cools the engine. In other words, even if the flow rate of the coolant is small, the cylinder head 200 and the cylinder block 100 of the engine can still be fully cooled to avoid the phenomenon of knocking caused by insufficient cooling. In addition, since the profiling plate 300 reduces the space in the second cooling groove 120, the flow rate of the coolant can be accelerated, and the cooling efficiency of the cylinder block 100 is improved.

[0058] In some embodiments, the thickness of the profiling plate 300 is less than the width of the second cooling groove 120, and the height of the profiling plate 300 is less than the depth of the second cooling groove 120. It should be noted that, since the thickness of the profiling plate 300 is less than the width of the second cooling groove 120, the profiling plate 300 can be installed more conveniently during assembly, thereby improving assembly efficiency. At the same time, flow space can be reserved for the coolant, so the cooling process will not be affected. Since the height of the profiling plate 300 is less than the depth of the second cooling groove 120, after the profiling plate 300 is placed in the second cooling groove 120, the coolant flowing into the second cooling groove 120 from the connecting point 112 can smoothly flow into both sides of the profiling plate 300 to achieve cooling of the cylinder body 100.

[0059] Combination Figure 2 and Figure 4 As shown, in some embodiments, the first cooling slot 110 is arranged along the first direction. The second cooling slot 120 includes a first sub-cooling slot 121 close to the first cooling slot 110 and a second sub-cooling slot 122 away from the first cooling slot 110, wherein the first sub-cooling slot 121 and the second sub-cooling slot 122 are both arranged along the first direction, one end of the first sub-cooling slot 121 is connected to one end of the second sub-cooling slot 122, and the other end of the first sub-cooling slot 121 is connected to the other end of the second sub-cooling slot 122. It should be noted that Figure 2 The direction indicated by the middle arrow is the first direction A1 in the embodiment of the present application. One side outer wall of the cylinder body 100 extends along the first direction A1, so that the extension direction of the first cooling groove 110 is parallel to one side outer wall of the cylinder body 100.

[0060] The cylinder barrel 130 includes at least two sub-cylinder barrels 130 arranged side by side along the first direction. The cylinder body 100 is also provided with a third cooling groove 140, which is located between the two sub-cylinder barrels 130, and the two ends of the third cooling groove 140 are respectively connected to the first sub-cooling groove 121 and the second sub-cooling groove 122. It should be noted that the first cooling groove 110, the second cooling groove 120 and the third cooling groove 140 are all grooves with openings facing one side of the cylinder head. Figure 1 The figure shows a schematic diagram of the structure of the cylinder body 100 including four sub-cylinder barrels 130. The first cooling groove 110 disposed near the outer wall of the cylinder body 100 can have many shapes, such as linear, annular or semi-annular. Figure 1 and Figure 2 The diagram shows a schematic diagram of the first cooling groove 110 being roughly linear. It is understandable that the shape of the first cooling groove 110 can be adjusted in combination with other structures on the engine. By providing a third cooling groove 140 connected to the first sub-cooling groove 121 and the second sub-cooling groove 122, the coolant in the first sub-cooling groove 121 can flow quickly into the second sub-cooling groove 122, thereby accelerating the flow rate of the coolant, allowing the coolant to quickly fill the entire second cooling groove 120, thereby improving the cooling efficiency of the cylinder block 100.

[0061] like Figure 2 As shown, in some embodiments, the first sub-cooling groove 121 includes multiple sections of the first sub-cylinder cooling groove 1211, and two adjacent sections of the first sub-cylinder cooling groove 1211 are connected through the first arc portion 1212. The shapes of the two connected first sub-cylinder cooling grooves 1211 are the same as the shapes of the corresponding two sub-cylinders. It can be understood that Figure 2 The structure diagram of the first sub-cooling groove 121 includes four sections of first sub-cylinder cooling grooves 1211. The number of the first sub-cylinder cooling grooves 1211 is the same as the number of the sub-cylinders. Thus, each first sub-cylinder cooling groove 1211 can fully cool the side of each corresponding sub-cylinder close to the first cooling groove 110, thereby improving the cooling effect.

[0062] like Figure 2 As shown, in some embodiments, the second sub-cooling groove 122 includes multiple sections of second sub-cylinder cooling grooves 1221, and the second sub-cylinder cooling grooves 1221 at two adjacent ends are connected by a second arc portion 1222, and the shapes of the two connected second sub-cylinder cooling grooves 1221 are the same as the shapes of the corresponding two sub-cylinders. Figure 2 The second sub-cooling groove 122 includes four second sub-cylinder cooling grooves 1221. The number of the second sub-cylinder cooling grooves 1221 is the same as the number of the sub-cylinders. Thus, each second sub-cylinder cooling groove 1221 can fully cool the side of each corresponding sub-cylinder away from the first cooling groove 110, thereby improving the cooling effect.

[0063] like Figure 2 As shown, in some embodiments, the first sub-cooling groove 1211 and the second sub-cooling groove 1221 located at both ends are connected through the third arc portion 123 and the fourth arc portion 124 respectively, so that the coolant can flow in the second cooling groove 120.

[0064] Combination Figure 2 and Figure 4 As shown, in some embodiments, the opening of the third cooling groove 140 faces the cylinder head 200 , and the depth of the third cooling groove 140 is less than the depth of the cylinder barrel 130 . Thus, the third cooling groove 140 will not interfere with other structures disposed in the cylinder block 100 .

[0065] Combination Figure 2 and Figure 4 As shown, in some embodiments, the cylinder body 100 is further provided with a connecting through hole 150, the connecting through hole 150 is located between the two sub-cylinder barrels 130, the first end of the connecting through hole 150 is connected to the first sub-cooling groove 121, and the second end of the connecting through hole 150 is connected to the second sub-cooling groove 122. It should be noted that by providing the connecting through hole 150 whose two ends are respectively connected to the first sub-cooling groove 121 and the second sub-cooling groove 122, the coolant in the first sub-cooling groove 121 can flow quickly into the second sub-cooling groove 122, thereby accelerating the flow speed of the coolant, allowing the coolant to quickly fill the entire second cooling groove 120, thereby improving the cooling efficiency of the cylinder body 100.

[0066] Combination Figure 2 and Figure 4 As shown, in some embodiments, the distance between the first end of the connecting through hole 150 and the bottom of the cylinder 130 is a first distance, and the distance between the second end of the connecting through hole 150 and the bottom of the cylinder 130 is a second distance, and the first distance is greater than the second distance. It can be understood that through the above-mentioned arrangement, the connecting through hole 150 is in an inclined state, and the second section of the connecting through hole 150 is closer to the bottom of the cylinder 130, so the coolant can smoothly flow from the first sub-cooling groove 121 into the second sub-cooling groove 122. Since the coolant can quickly flow to the middle of the cylinder 130 and then gradually fill the entire second cooling groove 120, the cylinder 130 can be cooled more evenly, thereby improving the cooling effect and cooling rate of the cylinder 130. It should be noted that, Figure 2 It is a schematic diagram of a coolant flow channel consisting of a first cooling groove 110 , a second cooling groove 120 , a third cooling groove 140 and a connecting through hole 150 .

[0067] It should be noted that Figure 1The structure diagram of the cylinder 130 of the engine is shown as including four sub-cylinders 130, and a third cooling groove 140 and a connecting through hole 150 are respectively provided between every two sub-cylinders 130. It is understandable that the cylinder 130 may include more sub-cylinders 130, such as 3 sub-cylinders, 6 sub-cylinders 130 or 8 sub-cylinders 130, and the third cooling groove 140 and / or the connecting through hole 150 are provided between every two sub-cylinders 130. It should be noted that the third cooling groove 140 and the connecting through hole 150 can be provided at the same time, or only one of them can be provided. The provision of the third cooling groove 140 and the connecting through hole 150 can ensure that the coolant can circulate between the cylinders 130 to the maximum extent when the coolant flow rate is small, so that the cylinder 130 can be cooled more evenly and quickly, thereby improving the cooling effect and cooling rate, avoiding the occurrence of knocking caused by abnormal combustion of the engine, and ensuring the normal performance of the engine.

[0068] When the liquid inlet 111 is connected to the first water pump, the coolant flowing into the second sub-cooling groove 122 from the third cooling groove 140 and / or the connecting through hole 150 is combined with the coolant flowing into the second sub-cooling groove 122 from both ends of the first sub-cooling groove 121 and then flows back to the first water pump. In some embodiments, the cylinder body 100 is provided with a first liquid outlet (not shown in the figure), and the liquid outlet is connected to the first water pump, so that the collected coolant can flow back to the first water pump through the liquid outlet to realize the circulation of the coolant.

[0069] When the liquid inlet 111 is connected to the second water pump, the coolant flowing into the second sub-cooling groove 122 from the third cooling groove 140 and / or the connecting through hole 150 is combined with the coolant flowing into the second sub-cooling groove 122 from both ends of the first sub-cooling groove 121 and then flows back to the second water pump. In some embodiments, the cylinder gasket 400 is provided with a second through hole, and the cylinder head 200 is provided with a second liquid outlet. The combined coolant flows back to the second water pump through the second through hole and the second liquid outlet in sequence to realize the circulation of the coolant.

[0070] By using the engine provided by the embodiment of the present application, when the engine is cooled, the cylinder head 200 can be cooled preferentially and fully, so as to avoid the situation where the temperature of the cylinder head 200 is too high and causes the engine to be abnormal. In addition, the cylinder body 100 can also be cooled while the cylinder head 200 is cooled, so that the cylinder head 200 and the cylinder body 100 of the engine can be reasonably and fully cooled. Since the profiling plate 300 is placed in the second cooling groove 120, the total amount of coolant can be reduced, and the cylinder head 200 and the cylinder body 100 can be fully cooled even when the coolant is less. In addition, since the third cooling groove 140 and / or the connecting through hole 150 for connecting the first sub-cooling groove 121 and the second sub-cooling groove 122 are also provided between every two sub-cylinder barrels 130, the flow rate of the coolant can be accelerated, thereby improving the cooling efficiency.

[0071] An embodiment of the present application also provides a vehicle, which includes any one of the engines provided in the above embodiments of the present application.

[0072] Since any of the engines provided in the above embodiments is installed in the vehicle, when cooling the engine, the coolant used to cool the engine can flow directly into the cylinder head 200 to cool the cylinder head 200, while another part of the coolant can flow into the second cooling groove 120 at the same time to cool the cylinder barrel 130. With such an arrangement, the cylinder head 200 and the cylinder barrel 130 can be cooled separately, and the coolant flowing through the cylinder head 200 no longer flows around the cylinder barrel 130, so that the cylinder head 200 can be fully cooled to a certain extent while the cylinder barrel 130 can be not overcooled. That is, the cylinder head 200 and the cylinder barrel 130 of the engine can be cooled more appropriately, so that the engine can maintain normal performance. The situation in which the use of the vehicle is affected by repeated disassembly or assembly of the vehicle for engine maintenance is avoided, and the service life of the vehicle is extended.

[0073] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the present application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only.

[0074] It should be understood that the present application is not limited to the precise structures that have been described above and shown in the drawings, and that various modifications and changes may be made without departing from the scope thereof. The scope of the present application is limited only by the appended claims.

Claims

1. An engine, characterized in that: The engine comprises a cylinder block (100), a cylinder head (200), a cylinder gasket (400) and a contour plate (300); The cylinder body (100) is provided with a first cooling groove (110) and a second cooling groove (120), the second cooling groove (120) being arranged around a cylinder barrel (130) in the cylinder body (100), the first cooling groove (110) being located between an outer wall of the cylinder body (100) and the second cooling groove (120), the first cooling groove (110) and the second cooling groove (120) being interconnected, the first cooling groove (110) and the second cooling groove (120) being grooves opening toward one side of the cylinder head (200), the first cooling groove (110) and the second cooling groove (120) being grooves opening toward one side of the cylinder head (200), The volume of the cooling groove (110) is greater than the volume of the second cooling groove (120), so that most of the coolant in the first cooling groove (110) flows into the cylinder head (200), and a small part of the coolant flows into the second cooling groove (120); a groove wall of the first cooling groove (110) is provided with a liquid inlet (111), and the coolant flows into the first cooling groove (110) from the liquid inlet (111), and a connecting point (112) between the first cooling groove (110) and the second cooling groove (120) is far away from the liquid inlet (111); The profiling plate (300) is similar in shape to the second cooling groove (120), the profiling plate (300) is located in the second cooling groove (120), the thickness of the profiling plate (300) is smaller than the width of the second cooling groove (120), the height of the profiling plate (300) is smaller than the depth of the second cooling groove (120), and the profiling plate (300) is used to reduce the amount of coolant filled into the second cooling groove (120); The cylinder gasket (400) is located between the cylinder head (200) and the cylinder block (100), and the cylinder gasket (400) is provided with a first through hole (410), and the shape of the first through hole (410) is the same as the opening shape of the first cooling groove (110), so as to ensure that most of the coolant in the first cooling groove (110) can flow into the cylinder head (200); When the engine is cooled, the coolant flows into the first cooling groove (110), a portion of the coolant in the first cooling groove (110) first flows into the corresponding cooling passage in the cylinder head (200) through the first through hole (410), and another portion of the coolant that does not flow into the cylinder head (200) flows into the second cooling groove (120) to cool the cylinder barrel (130).

2. The engine according to claim 1, characterized in that The first cooling grooves (110) are arranged along a first direction; The second cooling groove (120) comprises a first sub-cooling groove (121) close to the first cooling groove (110) and a second sub-cooling groove (122) far from the first cooling groove (110), wherein the first sub-cooling groove (121) and the second sub-cooling groove (122) are both arranged along the first direction, one end of the first sub-cooling groove (121) is connected to one end of the second sub-cooling groove (122), and the other end of the first sub-cooling groove (121) is connected to the other end of the second sub-cooling groove (122); The cylinder (130) comprises at least two sub-cylinders arranged side by side along the first direction; The cylinder body is also provided with a third cooling groove (140), and the third cooling groove (140) is located between the two sub-cylinder barrels, and the two ends of the third cooling groove (140) are respectively connected to the first sub-cooling groove (121) and the second sub-cooling groove (122).

3. The engine according to claim 2, characterized in that The opening of the third cooling groove (140) faces the cylinder head (200), and the depth of the third cooling groove (140) is smaller than the depth of the cylinder barrel (130).

4. The engine according to claim 2, characterized in that The cylinder body (100) is also provided with a connecting through hole (150), wherein the connecting through hole (150) is located between the two sub-cylinder barrels, a first end of the connecting through hole (150) is connected to the first sub-cooling groove (121), and a second end of the connecting through hole (150) is connected to the second sub-cooling groove (122).

5. The engine according to claim 4, characterized in that The distance between the first end of the communicating through hole (150) and the bottom of the cylinder (130) is a first distance, and the distance between the second end of the communicating through hole (150) and the bottom of the cylinder (130) is a second distance, and the first distance is greater than the second distance.

6. A vehicle, characterized in that: The vehicle comprises an engine as claimed in any one of claims 1 to 5.

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