Cylinder block structure of engine, engine and vehicle

Abstract

The utility model discloses a cylinder structure of engine, engine and vehicle, the cylinder structure of engine includes: the cylinder body, the cylinder body forms the blow-by channel, the one end of blow-by channel is suitable for being communicated with the breathing system of engine, the other end of blow-by channel is suitable for being communicated with the crankcase of engine, a first cooling water jacket is further formed on the cylinder body and arranged around the blow-by channel so that heat exchange media in the first cooling water jacket can exchange heat with gas in the blow-by channel. According to the cylinder block structure, the cylinder block structure comprises the cylinder block body, the blow-by channel is formed in the cylinder block body, the first cooling water jacket is formed in the cylinder block body, the first cooling water jacket can cool gas in the blow-by channel, the viscosity of engine oil in blow-by gas can be increased, the engine oil forms large particles, and before the blow-by gas enters a breathing system of an engine, the engine oil can be cooled; the engine oil is separated from the blow-by gas in advance, the engine oil content in the blow-by gas is reduced, engine oil combustion is reduced, whole machine emission is optimized, and environmental pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the field of automobile accessories, in particular to a cylinder structure of an engine, an engine and a vehicle. Background Art

[0002] In the related technologies, as people pay more and more attention to environmental protection, the requirements for engine emission levels are also constantly increasing. At present, vehicles mainly reduce the combustion of oil in the cylinder through the cylinder hole mesh and piston ring, and reduce the probability of engine blowby through the breathing system, thereby reducing the oil entering the combustion chamber through the airway for combustion, and cleaning the vehicle exhaust. However, the efficiency is low and the cleaning effect is poor. Oil combustion still accounts for a large proportion of the particles in vehicle emissions. Particulate matter is the main source of emission pollution, polluting the environment. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the utility model is to propose a cylinder structure of an engine, which can increase the viscosity of the engine oil in the blowby gas, form larger particles of the engine oil, separate the engine oil from the blowby gas in advance before the blowby gas enters the breathing system of the engine, reduce the engine oil content in the blowby gas, reduce engine oil combustion, optimize the emission of the whole machine, and reduce environmental pollution.

[0004] The utility model also provides an engine using the cylinder structure.

[0005] The utility model also provides a vehicle using the engine.

[0006] According to the cylinder structure of the engine of the first aspect embodiment of the utility model, it includes: a cylinder body, the cylinder body is formed with a blow-by gas channel, one end of the blow-by gas channel is suitable for communicating with the breathing system of the engine, and the other end of the blow-by gas channel is suitable for communicating with the crankcase of the engine, and the cylinder body is also formed with a first cooling water jacket, and the first cooling water jacket is arranged around the blow-by gas channel so that the heat exchange medium in the first cooling water jacket can exchange heat with the gas in the blow-by gas channel.

[0007] According to the cylinder structure of the embodiment of the present application, it includes a cylinder body, which is formed with a blow-by gas channel. One end of the blow-by gas channel is suitable for being connected to the breathing system of the engine, and the other end of the blow-by gas channel is suitable for being connected to the crankcase of the engine. When the engine is working, part of the combustible mixture and combustion products blow into the crankcase from the cylinder through the piston ring, and the blow-by gas enters the blow-by gas channel through the crankcase. The cylinder body is formed with a first cooling water jacket, and the first cooling water jacket is arranged around the blow-by gas channel so that the heat exchange medium in the first cooling water jacket exchanges heat with the gas in the blow-by gas channel. The first cooling water jacket can cool the gas in the blow-by gas channel, increase the viscosity of the engine oil in the blow-by gas, and form larger particles of the engine oil. Before the blow-by gas enters the breathing system, the engine oil is separated from the blow-by gas in advance, thereby reducing the engine oil content in the blow-by gas, reducing engine oil combustion, optimizing overall machine emissions, and reducing environmental pollution.

[0008] According to some embodiments of the utility model, the blow-by gas channel penetrates the cylinder body along the height direction of the cylinder structure, the blow-by gas channel and the cylinder barrel of the cylinder body are arranged at intervals along a first direction, the cylinder body is also formed with a second cooling water jacket, the second cooling water jacket is located between the blow-by gas channel and the cylinder barrel of the cylinder body, the heat exchange medium in the second cooling water jacket exchanges heat with the gas in the blow-by gas channel, and the first direction is perpendicular to the height direction of the cylinder structure.

[0009] According to some embodiments of the present utility model, along the first direction, the first cooling water jacket and the second cooling water jacket are respectively located on both sides of the blow-by gas channel.

[0010] According to some embodiments of the present invention, the cylinder body is further formed with a pump installation space, and the pump installation space is connected to the first cooling water jacket and the second cooling water jacket.

[0011] According to some embodiments of the utility model, along the first direction, the pump installation space and the first cooling water jacket are located on the same side of the second cooling water jacket, and the pump installation space and the first cooling water jacket are arranged along the second direction, and a first connecting port is formed on the side wall of the pump installation space opposite to the first cooling water jacket along the second direction, and the first connecting port connects the pump installation space and the first cooling water jacket, and the first direction, the second direction and the height direction of the cylinder structure are perpendicular to each other.

[0012] According to some embodiments of the present invention, along the first direction, a side wall of the pump installation space opposite to the second cooling water jacket is formed with a second communication port, and the second communication port connects the pump installation space and the second cooling water jacket.

[0013] According to some embodiments of the utility model, the first cooling water jacket extends along the second direction, and the first cooling water jacket forms a medium flow rate enhancement zone. Along the second direction, the medium flow rate enhancement zone is located on a side of the first cooling water jacket away from the pump installation space.

[0014] According to some embodiments of the present utility model, the first cooling water jacket is arranged corresponding to the middle position of the blow-by gas channel.

[0015] The engine according to the embodiment of the second aspect of the utility model comprises: the cylinder structure of the engine described in the above embodiment.

[0016] The vehicle according to the embodiment of the third aspect of the utility model comprises: the engine described in the above embodiment.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 is a front view of a cylinder structure according to an embodiment of the present application;

[0020] Figure 2 yes Figure 1 Partial cross-sectional view at AA in FIG.

[0021] Figure 3 is a side view of a cylinder structure according to an embodiment of the present application;

[0022] Figure 4 yes Figure 3 The cross-sectional view at BB in FIG.

[0023] Figure 5 yes Figure 3 Partial cross-sectional view at CC in the figure.

[0024] Reference numerals:

[0025] Cylinder structure 1, cylinder body 10,

[0026] Blow-by gas channel 11, first cooling water jacket 12, first cooling water jacket inlet 121, medium flow rate improvement area 122,

[0027] Cylinder barrel 13, second cooling water jacket 14,

[0028] The pump installation space 15 has a first communication port 151 and a second communication port 152 . DETAILED DESCRIPTION

[0029] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0030] Reference below Figure 1-Figure 5 The cylinder structure 1 of the engine according to the embodiment of the utility model is described, and the cylinder structure 1 is provided in the engine, and the engine is installed on a vehicle. Of course, the utility model is not limited to this, and the engine with the cylinder structure 1 can also be installed on other devices using the engine, for example: the engine can be installed on an aircraft, a ship, etc. This application is described by taking the engine with the cylinder structure 1 installed on a vehicle as an example.

[0031] According to the cylinder structure 1 of the first embodiment of the utility model, Figure 1 and Figure 4 As shown, the cylinder structure 1 includes a cylinder body 10, and the cylinder body 10 is formed with a blow-by gas channel 11. One end of the blow-by gas channel 11 is suitable for communicating with the breathing system of the engine, and the other end of the blow-by gas channel 11 is suitable for communicating with the crankcase of the engine. The cylinder body 10 is also formed with a first cooling water jacket 12, and the first cooling water jacket 12 is arranged around the blow-by gas channel 11 so that the heat exchange medium in the first cooling water jacket 12 exchanges heat with the gas in the blow-by gas channel 11.

[0032] It should be noted that in the relevant technology, vehicles mainly reduce the combustion of oil in the cylinder through the cylinder bore mesh and piston ring cooperation, and reduce the probability of engine blowby through the breathing system, thereby reducing the oil entering the combustion chamber through the airway for combustion, and cleaning the vehicle's exhaust emissions. However, the efficiency is low and the cleaning effect is poor. Oil combustion still accounts for a large proportion of the particles in vehicle emissions. Particulate matter is the main source of emission pollution, polluting the environment.

[0033] Based on this, the utility model proposes a cylinder structure 1, which includes a cylinder body 10. The cylinder body 10 can be made of metal materials such as cast iron and aluminum alloy. The cylinder body 10 has high strength and good thermal conductivity. The cylinder body 10 is formed with a blowby gas channel 11. One end of the blowby gas channel 11 is suitable for connecting with the breathing system of the engine, and the other end of the blowby gas channel 11 is suitable for connecting with the crankcase of the engine. When the engine is working, part of the combustible mixture and combustion products pass through the piston ring from the cylinder into the crankcase, and the combustible mixture and combustion products further enter the blowby gas channel 11 through the crankcase.

[0034] The cylinder body 10 is also formed with a first cooling water jacket 12, which is arranged inside the cylinder body 10, without laying pipes, which is beneficial to reducing the weight of the cylinder structure 1 and the production cost of the engine. A heat exchange medium flows in the first cooling water jacket 12, and the heat exchange medium can be a coolant or the like. The first cooling water jacket 12 is arranged around the blow-by gas channel 11, that is, the first cooling water jacket 12 can be arranged on one side of the blow-by gas channel 11, and the first cooling water jacket 12 can also be arranged around the blow-by gas channel 11. The heat exchange medium in the first cooling water jacket 12 exchanges heat with the gas in the blow-by gas channel 11. The heat exchange medium in the first cooling water jacket 12 can use the good thermal conductivity of the cylinder body 10 to achieve heat exchange with the gas in the blow-by gas channel 11. The temperature of the heat exchange medium in the first cooling water jacket 12 is lower than the temperature of the blow-by gas. The first cooling water jacket 12 cools the gas in the blow-by gas channel 11, and the temperature of the gas in the blow-by gas channel 11 is reduced, so that the viscosity of the engine oil in the gas in the blow-by gas channel 11 increases, and the engine oil forms larger particles. Before the blow-by gas enters the respiratory system of the engine, the engine oil is separated from the blow-by gas in advance, thereby reducing the engine oil content in the blow-by gas, reducing engine oil combustion, and reducing the proportion of engine oil combustion in vehicle emissions, optimizing overall emissions, and reducing environmental pollution.

[0035] In some embodiments of the present invention, Figure 2 and Figure 4 As shown, the blow-by gas channel 11 penetrates the cylinder body 10 along the height direction of the cylinder structure 1, and the blow-by gas channel 11 and the cylinder barrel 13 of the cylinder body 10 are arranged at intervals along the first direction. The cylinder body 10 is also formed with a second cooling water jacket 14, and the second cooling water jacket 14 is located between the blow-by gas channel 11 and the cylinder barrel 13 of the cylinder body 10. The heat exchange medium in the second cooling water jacket 14 exchanges heat with the gas in the blow-by gas channel 11, and the first direction is perpendicular to the height direction of the cylinder structure 1.

[0036] The blow-by gas passage 11 penetrates the cylinder body 10 along the height direction of the cylinder structure 1. Figure 4 When placed in the direction, the height direction of the cylinder structure 1 is Figure 4 In the Z direction, the blow-by gas channel 11 and the cylinder barrel 13 of the cylinder body 10 are arranged at intervals along the first direction. Figure 2 When placing in the direction, the first direction is Figure 2 In the X direction, the first direction is perpendicular to the height direction of the cylinder structure 1.

[0037] The cylinder body 10 is also formed with a second cooling water jacket 14, in which a heat exchange medium may flow, and the heat exchange medium may be a coolant or the like. The second cooling water jacket 14 is disposed between the blow-by gas passage 11 and the cylinder barrel 13 of the cylinder body 10, and the heat exchange medium in the second cooling water jacket 14 exchanges heat with the gas in the blow-by gas passage 11, and the heat exchange medium in the second cooling water jacket 14 may utilize the good thermal conductivity of the cylinder body 10 to achieve heat exchange with the blow-by gas, and the temperature of the heat exchange medium in the second cooling water jacket 14 is lower than the temperature of the blow-by gas, and the second cooling water jacket 14 cools the gas in the blow-by gas passage 11, and the first cooling water jacket 12 and the second cooling water jacket 14 cooperate to strengthen the cooling of the gas in the blow-by gas passage 11, further reduce the oil content in the blow-by gas, optimize the overall emission, and reduce environmental pollution. In addition, the cylinder body 10 is formed with a second cooling water jacket 14, and the second cooling water jacket 14 is disposed inside the cylinder body 10, and there is no need to lay pipes, which is conducive to reducing the weight of the cylinder structure 1 and the production cost of the engine. The second cooling water jacket 14 is disposed between the blow-by gas passage 11 and the cylinder barrel 13 of the cylinder body 10 . The second cooling water jacket 14 extends along the arrangement direction of the cylinder barrel 13 . The second cooling water jacket 14 can also cool the cylinder barrel 13 , thereby extending the service life of the cylinder barrel 13 .

[0038] In some embodiments of the present invention, Figure 2 As shown, along the first direction, the first cooling water jacket 12 and the second cooling water jacket 14 are respectively located on both sides of the blow-by gas channel 11 .

[0039] The first cooling water jacket 12 is located on the side of the blow-by gas channel 11 away from the cylinder barrel 13 of the cylinder body 10, and the second cooling water jacket 14 is provided between the blow-by gas channel 11 and the cylinder barrel 13 of the cylinder body 10. The first cooling water jacket 12 and the second cooling water jacket 14 can both cool the gas in the blow-by gas channel 11. The first cooling water jacket 12 and the second cooling water jacket 14 are respectively located on both sides of the blow-by gas channel 11. The first cooling water jacket 12 and the second cooling water jacket 14 cooperate to wrap the blow-by gas channel 11, which can improve the cooling effect of the gas in the blow-by gas channel 11, further increase the viscosity of the engine oil in the blow-by gas, and reduce the engine oil content in the blow-by gas.

[0040] In some embodiments of the present invention, Figure 1 and Figure 2 As shown, the cylinder body 10 is further formed with a pump installation space 15 , and the pump installation space 15 is connected to the first cooling water jacket 12 and the second cooling water jacket 14 .

[0041] The cylinder body 10 is also formed with a pump installation space 15, which can be used to assemble a pump body. The pump body can circulate the heat exchange medium inside the engine, and the heat exchange medium can be a coolant, etc. The pump installation space 15 can be connected to the first cooling water jacket 12 and the second cooling water jacket 14. The heat exchange medium flows through the first cooling water jacket 12, the pump installation space 15 and the second cooling water jacket 14. The pump body in the pump installation space 15 can drive the heat exchange medium in the first cooling water jacket 12 to flow to the second cooling water jacket 14, so as to realize the flow of the heat exchange medium. After the heat exchange medium exchanges heat with the gas in the blowby gas channel 11, the heat exchange medium flows to transfer the heat, thereby realizing the continuous cooling of the gas in the blowby gas channel 11.

[0042] In some embodiments of the present invention, Figure 2 and Figure 3 As shown, along the first direction, the pump installation space 15 and the first cooling water jacket 12 are located on the same side of the second cooling water jacket 14, and the pump installation space 15 and the first cooling water jacket 12 are arranged along the second direction, and a first connecting port 151 is formed on the side wall of the pump installation space 15 opposite to the first cooling water jacket 12 along the second direction, and the first connecting port 151 connects the pump installation space 15 and the first cooling water jacket 12, and the first direction, the second direction and the height direction of the cylinder structure 1 are perpendicular to each other.

[0043] Along the first direction, the pump installation space 15 and the first cooling water jacket 12 are arranged on the same side of the second cooling water jacket 14, and the pump installation space 15 and the first cooling water jacket 12 are arranged along the second direction. Figure 2 Direction placement, the second direction is Figure 2 In the Y direction, the first direction and the height direction of the cylinder structure 1 are perpendicular to each other, the second direction and the height direction of the cylinder structure 1 are perpendicular to each other, and the first direction and the second direction are also perpendicular to each other.

[0044] Along the second direction, a first connecting port 151 is formed on the side wall of the pump installation space 15 opposite to the first cooling water jacket 12. The first connecting port 151 connects the pump installation space 15 with the first cooling water jacket 12. The first cooling water jacket 12 is formed with a first cooling water jacket inlet 121. The first cooling water jacket inlet 121 is arranged on the side of the first cooling water jacket 12 away from the cylinder barrel 13. The first cooling water jacket inlet 121 is arranged on the side wall of the cylinder body 10. The heat exchange medium can enter the first cooling water jacket 12 through the first cooling water jacket inlet 121. The heat exchange medium can flow from the first cooling water jacket 12 into the pump installation space 15 through the first connecting port 151. The heat exchange medium circulates to achieve continuous cooling of the gas in the blowby gas channel 11.

[0045] In some embodiments of the present invention, Figure 2As shown, along the first direction, a second communication port 152 is formed on the side wall of the pump installation space 15 opposite to the second cooling water jacket 14 , and the second communication port 152 communicates the pump installation space 15 with the second cooling water jacket 14 .

[0046] Along the first direction, the side wall of the pump installation space 15 opposite to the second cooling water jacket 14 is formed with a second connecting port 152, and the second connecting port 152 connects the pump installation space 15 with the second cooling water jacket 14. The heat exchange medium can flow from the pump installation space 15 into the second cooling water jacket 14 through the second connecting port 152. The heat exchange medium flows through the first connecting port 151 and the second connecting port 152, so that the heat exchange medium flows from the first cooling water jacket 12 to the pump installation space 15, and then flows from the pump installation space 15 to the second cooling water jacket 14, thereby realizing The heat exchange medium now flows around the blow-by gas channel 11, wrapping the blow-by gas channel 11 on all sides, fully cooling the gas in the blow-by gas channel 11, enhancing the cooling effect on the gas in the blow-by gas channel 11, reducing the temperature of the gas in the blow-by gas channel 11, increasing the viscosity of the engine oil, and forming larger particles of the engine oil. Before the gas in the blow-by gas channel 11 enters the respiratory system, the engine oil is separated and falls off from the gas in the blow-by gas channel 11 in advance, thereby improving the separation rate of the engine oil in the blow-by gas, reducing the engine oil content in the blow-by gas, reducing engine oil combustion, optimizing overall emissions, and protecting the environment.

[0047] In some embodiments of the present invention, Figure 5 As shown, the first cooling water jacket 12 extends along the second direction, and a medium flow rate enhancement area 122 is formed in the first cooling water jacket 12 . Along the second direction, the medium flow rate enhancement area 122 is located on a side of the first cooling water jacket 12 away from the pump installation space 15 .

[0048] The first cooling water jacket 12 extends along the second direction, and the first cooling water jacket 12 is formed with a medium flow rate enhancement area 122, and the cross-sectional area of ​​the medium flow rate enhancement area 122 is smaller than the cross-sectional area of ​​the remaining part of the first cooling water jacket 12. In the embodiment of the present application, along the second direction, the medium flow rate enhancement area 122 is located on the side of the first cooling water jacket 12 away from the pump installation space 15, and along the first direction, the medium flow rate enhancement area 122 is located on the side of the first cooling water jacket 12 close to the cylinder 13. When the heat exchange medium in the first cooling water jacket 12 flows through the medium flow rate enhancement area 122, the medium flow rate enhancement area 122 can increase the flow rate of the heat exchange medium due to the decrease in the cross-sectional area of ​​the medium flow rate enhancement area 122, thereby increasing the flow rate of the heat exchange medium in the first cooling water jacket 12, improving the heat exchange efficiency between the heat exchange medium and the gas in the blowby gas channel 11, and enhancing the cooling effect of the heat exchange medium on the gas in the blowby gas channel 11.

[0049] In some embodiments of the present invention, Figure 3 and Figure 4 As shown, the first cooling water jacket 12 is disposed corresponding to the middle position of the blow-by gas passage 11 .

[0050] The first cooling water jacket 12 is correspondingly arranged at the middle position of the blowby gas channel 11, so that the cooling of the gas in the blowby gas channel 11 by the first cooling water jacket 12 mainly occurs in the middle position of the blowby gas channel 11, so that the engine oil is separated and detached from the gas in the blowby gas channel 11 in advance, reducing the oil content in the blowby gas, reducing oil combustion, optimizing overall emissions, and protecting the environment.

[0051] The first cooling water jacket 12 is correspondingly arranged in the middle position of the blow-by gas channel 11. Along the height direction of the cylinder structure 1, the first cooling water jacket 12 can utilize the good thermal conductivity of the cylinder structure 1 to cool the gas in the blow-by gas channel 11 above the first cooling water jacket 12. The first cooling water jacket 12 can also utilize the good thermal conductivity of the cylinder structure 1 to cool the gas in the blow-by gas channel 11 below the first cooling water jacket 12. Since the first cooling water jacket 12 is correspondingly arranged in the middle position of the blow-by gas channel 11, the first cooling water jacket 12 has a similar cooling efficiency for the gas in the blow-by gas channel 11 above or below it, thereby reducing the temperature difference of the gas in the blow-by gas channel 11, and can also reduce the overall temperature of the gas in the blow-by gas channel 11, thereby improving the cooling efficiency.

[0052] The engine according to the embodiment of the second aspect of the utility model comprises: the cylinder structure 1 in the above embodiment.

[0053] According to the engine of the embodiment of the present application, the cylinder structure 1 in the above embodiment is used to cool the gas in the blowby gas channel 11, reduce the oil content in the gas in the blowby gas channel 11, reduce the oil combustion in the combustion chamber, and the engine structure is simple, reducing the production cost.

[0054] A vehicle according to an embodiment of the third aspect of the utility model includes: the engine in the above embodiment.

[0055] The vehicle according to the embodiment of the present application uses the engine in the above embodiment to reduce the content of oil combustion in vehicle emissions, improve the cleanliness of vehicle emissions, and protect the environment.

[0056] The cylinder structure 1 of the engine according to the embodiment of the utility model, other components and operations of the engine and the vehicle are well known to those skilled in the art and will not be described in detail here.

[0057] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0058] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A cylinder structure (1) of an engine, characterized in that: include: A cylinder body (10), wherein the cylinder body (10) is formed with a blow-by gas passage (11), one end of the blow-by gas passage (11) is suitable for being connected to a breathing system of the engine, and the other end of the blow-by gas passage (11) is suitable for being connected to a crankcase of the engine, and the cylinder body (10) is also formed with a first cooling water jacket (12), wherein the first cooling water jacket (12) is arranged around the blow-by gas passage (11) so that a heat exchange medium in the first cooling water jacket (12) exchanges heat with gas in the blow-by gas passage (11).

2. The cylinder structure (1) of the engine according to claim 1, characterized in that: The blow-by gas channel (11) penetrates the cylinder body (10) along the height direction of the cylinder structure (1); the blow-by gas channel (11) and the cylinder barrel (13) of the cylinder body (10) are arranged at intervals along a first direction; the cylinder body (10) is further provided with a second cooling water jacket (14); the second cooling water jacket (14) is located between the blow-by gas channel (11) and the cylinder barrel (13) of the cylinder body (10); a heat exchange medium in the second cooling water jacket (14) exchanges heat with gas in the blow-by gas channel (11); and the first direction is perpendicular to the height direction of the cylinder structure (1).

3. The cylinder structure (1) of the engine according to claim 2, characterized in that: Along the first direction, the first cooling water jacket (12) and the second cooling water jacket (14) are respectively located on both sides of the blow-by gas channel (11).

4. The cylinder structure (1) of the engine according to claim 2, characterized in that: The cylinder body (10) is also formed with a pump installation space (15), and the pump installation space (15) is in communication with the first cooling water jacket (12) and the second cooling water jacket (14).

5. The cylinder structure (1) of the engine according to claim 4, characterized in that: Along the first direction, the pump installation space (15) and the first cooling water jacket (12) are located on the same side of the second cooling water jacket (14), and the pump installation space (15) and the first cooling water jacket (12) are arranged along the second direction. Along the second direction, a first connecting port (151) is formed on a side wall of the pump installation space (15) opposite to the first cooling water jacket (12), and the first connecting port (151) connects the pump installation space (15) and the first cooling water jacket (12). The first direction, the second direction and the height direction of the cylinder structure (1) are perpendicular to each other.

6. The cylinder structure (1) of the engine according to claim 5, characterized in that: Along the first direction, a side wall of the pump installation space (15) opposite to the second cooling water jacket (14) is formed with a second communication port (152), and the second communication port (152) connects the pump installation space (15) and the second cooling water jacket (14).

7. The cylinder structure (1) of the engine according to claim 5, characterized in that: The first cooling water jacket (12) extends along a second direction, and the first cooling water jacket (12) forms a medium flow rate enhancement area (122). Along the second direction, the medium flow rate enhancement area (122) is located on a side of the first cooling water jacket (12) away from the pump installation space (15).

8. The cylinder structure (1) of an engine according to any one of claims 1 to 7, characterized in that: The first cooling water jacket (12) is arranged corresponding to the middle position of the blow-by gas channel (11).

9. An engine, characterized in that: A cylinder structure (1) of an engine comprising any one of claims 1-8.

10. A vehicle, characterized in that: Comprising an engine according to claim 9.

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