Air cylinder, engine and vehicle

Abstract

The invention discloses an air cylinder, an engine and a vehicle. The technical problem that in the prior art, the heat dissipation capacity of an engine is insufficient is solved. The cylinder comprises a cylinder body, a cylinder cover, a water jacket, a spraying structure and a controller. The air cylinder cover covers the air cylinder body to form a cavity, and heat dissipation holes are formed in the air cylinder body and / or the air cylinder cover. And the water jacket is arranged in the cavity. The spraying structure communicates with the water jacket, and an electromagnetic valve is arranged in the spraying structure. And the controller is electrically connected with the electromagnetic valves. The controller of the air cylinder monitors the temperature in the cavity in real time, and when the temperature value in the cavity is larger than or equal to the preset temperature value, the electromagnetic valve is rapidly controlled to be opened, so that the spraying structure immediately sprays cooling liquid. The quick response mechanism can intervene in time when the temperature of the air cylinder rises abnormally, continuous rising of the temperature is avoided, the overall temperature of the air cylinder is effectively reduced, and compared with traditional equipment depending on a natural heat dissipation mode or a single cooling mode, heat can be taken away more quickly, and the heat dissipation efficiency is improved.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of engine cooling, and particularly relates to a cylinder, an engine and a vehicle. BACKGROUND

[0002] The engine cylinder head is an important component of the engine, which mainly functions to close the upper part of the cylinder and form a combustion chamber together with the top of the piston. Meanwhile, the cylinder head also bears the functions of cooling, lubrication and air intake and exhaust. During the operation of the engine, the cylinder head is subjected to multiple influences of high temperature, high pressure and mechanical load, and thus needs an effective cooling system to ensure its normal work.

[0003] The existing engine cylinder head cooling system mainly adopts a water cooling mode, through which the cooling liquid circulates in the water jacket in the cylinder head to take away heat, so as to keep the temperature of the cylinder head within a reasonable range. However, the heat dissipation capacity of this traditional cooling system may be insufficient under high load operation or high temperature environment, which further aggravates the thermal load of the cylinder head. SUMMARY

[0004] To solve the above technical problems, the application discloses a cylinder, an engine and a vehicle.

[0005] The technical scheme adopted to achieve the purpose of the application is as follows. In a first aspect of the application, a cylinder head is disclosed, comprising:

[0006] a cylinder body;

[0007] a cylinder head connected to the cylinder body to form a cavity, and the cylinder body and / or the cylinder head is provided with a heat dissipation hole;

[0008] a water jacket installed in the cavity;

[0009] a spraying structure in communication with the water jacket, and an electromagnetic valve is arranged in the spraying structure;

[0010] a controller electrically connected to the electromagnetic valve;

[0011] The controller is configured to control the electromagnetic valve to open to make the spraying structure spray the cooling liquid when the temperature value in the cavity is greater than or equal to a preset temperature value.

[0012] According to one embodiment of the application, the cylinder further comprises a plurality of temperature sensors, which are arranged at intervals in the cavity and are configured to detect the temperature value in the cavity; and the controller is configured to control the electromagnetic valve to open to make the spraying structure spray the cooling liquid when the temperature detected by at least one of the temperature sensors is greater than or equal to the preset temperature.

[0013] According to an embodiment of the present application, the spray structure is provided in plurality, the plurality of spray structures are arranged at intervals on the water jacket, and each temperature sensor corresponds to at least one spray structure; when the temperature detected by the temperature sensor is greater than or equal to the preset temperature, the controller controls the corresponding electromagnetic valve to open to make the corresponding spray structure spray the cooling liquid.

[0014] According to an embodiment of the present application, the plurality of temperature sensors are arranged at intervals along the length direction of the cylinder body, and the plurality of spray structures are arranged at intervals along the length direction of the cylinder body.

[0015] According to an embodiment of the present application, the spray structure comprises an extension pipe and a spray head, the extension pipe is communicated with the water jacket, the spray head is communicated with the extension pipe, and the electromagnetic valve is installed in the spray head.

[0016] According to an embodiment of the present application, the spray structure further comprises a mounting bracket, the mounting bracket is installed on the cylinder body, and the extension pipe is connected with the mounting bracket.

[0017] According to an embodiment of the present application, the water jacket comprises an inlet and an outlet, the inlet and the outlet are respectively located at opposite ends of the cylinder body; the cylinder further comprises a water storage structure, a water outlet of the water storage structure is communicated with the inlet of the water jacket, and a water inlet of the water storage structure is communicated with the outlet of the water jacket.

[0018] According to an embodiment of the present application, the cylinder cover comprises a first cavity, the cylinder body comprises a second cavity, the second cavity and the first cavity jointly form the cavity, and the water jacket is located in the first cavity and / or the second cavity.

[0019] The technical scheme adopted to achieve the purpose of the present application is that, in the second aspect of the present application, the present application further discloses an engine comprising the cylinder cover of the first aspect.

[0020] The technical scheme adopted to achieve the purpose of the present application is that, in the third aspect of the present application, the present application further discloses a vehicle comprising the engine of the second aspect.

[0021] According to the technical scheme, the cylinder disclosed in the application comprises a cylinder body, a cylinder cover, a water jacket, a spraying structure and a controller. The cylinder cover is connected to the cylinder body to form a cavity, and the cylinder body and / or the cylinder cover is provided with a heat dissipation hole. The water jacket is installed in the cavity. The spraying structure is communicated with the water jacket, and an electromagnetic valve is arranged in the spraying structure. The controller is electrically connected with the electromagnetic valve. The controller is used to control the electromagnetic valve to be opened to make the spraying structure spray cooling liquid when the temperature value in the cavity is greater than or equal to a preset temperature value.

[0022] The controller of the cylinder disclosed in the application is electrically connected with the electromagnetic valve, and can automatically control the opening and closing of the electromagnetic valve according to the comparison result of the actual temperature value in the cylinder cover cavity and the preset temperature value. The intelligent adjustment mode can accurately match the actual cooling demand of the cylinder cover under different working conditions, avoids the overcooling or insufficient cooling, improves the heat dissipation efficiency, and helps to save the consumption of cooling liquid and the waste of energy. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to make the person skilled in the art to which the present application belongs more clearly understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Figure 1 FIG. 1 is a schematic view of a cylinder in one or more embodiments of the present application;

[0025] Figure 2 FIG. 2 is a schematic view of a cylinder cover in one or more embodiments of the present application. Figure 1

[0026] Reference signs: 100, cylinder cover; 110, cavity; 111, first cavity; 120, temperature sensor; 200, water jacket; 210, inlet; 220, outlet; 230, hydraulic pump; 300, spraying structure; 310, extension pipe; 320, spray head; 330, mounting frame. DETAILED DESCRIPTION

[0027] ​In order for those skilled in the art to which the present application pertains to more clearly understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0028] In addition, reference numbers and / or reference letters can be repeated in different examples in the present application, and such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements discussed. In addition, the present application provides examples of various specific processes and materials, but those of ordinary skill in the art can realize the application of other processes and / or the use of other materials.

[0029] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0030] The embodiments of the present application disclose a cylinder, which can solve the problem of insufficient heat dissipation capacity of the existing engine cylinder head cooling system under high load operation or high temperature environment, thereby improving the cooling effect of the cylinder head and ensuring the stable operation of the engine.

[0031] The technical solutions of the present application will be described in detail below through specific embodiments:

[0032] Referring to Figure 1 and Figure 2 In the first aspect of the present application, a cylinder is disclosed, which comprises a cylinder body, a cylinder head 100, a water jacket 200, a spraying structure 300 and a controller. The cylinder head 100 is connected to the cylinder body to form a cavity 110, and the cylinder body and / or the cylinder head 100 is provided with a heat dissipation hole. The water jacket 200 is installed in the cavity 110. The spraying structure 300 is in communication with the water jacket 200, and an electromagnetic valve is arranged in the spraying structure 300. The controller is electrically connected with the electromagnetic valve. The controller is configured to control the electromagnetic valve to open to make the spraying structure 300 spray cooling liquid when the temperature value in the cavity 110 is greater than or equal to a preset temperature value; and the controller is configured to control the electromagnetic valve to close to make the spraying structure 300 stop spraying when the temperature value in the cavity 110 is less than the preset temperature value.

[0033] It is possible that only the heat dissipation hole is arranged on the cylinder head 100, or only the heat dissipation hole is arranged on the cylinder body, or the heat dissipation holes are arranged on both the cylinder head 100 and the cylinder body.

[0034] The controller of the cylinder disclosed in the embodiment is electrically connected with the electromagnetic valve, and can automatically control the opening and closing of the electromagnetic valve according to the comparison result of the actual temperature value in the cavity 110 of the cylinder head 100 and the preset temperature value. The electromagnetic valve is controlled to be opened to make the spraying structure 300 spray the cooling liquid under the condition that the temperature value in the cavity 110 is greater than or equal to the preset temperature value; and the controller is configured to control the electromagnetic valve to be closed to make the spraying structure 300 stop spraying under the condition that the temperature value in the cavity 110 is less than the preset temperature value. Such an intelligent adjustment mode enables the cooling system to accurately match the actual cooling demand of the cylinder head 100 under different working conditions, avoids the occurrence of excessive cooling or insufficient cooling, improves the heat dissipation efficiency, and helps to save the consumption of cooling liquid and the waste of energy.

[0035] The cylinder is provided with a heat dissipation hole. The sprayed cooling liquid absorbs heat and vaporizes at the same time of cooling the cavity 110. At this time, the vaporized cooling liquid can be discharged from the heat dissipation hole, so as to avoid the accumulation of the condensed cooling liquid in the cavity 110.

[0036] The phase change material has a unique phase change characteristic. When absorbing heat, it changes from one phase to another phase (such as from liquid to gas), and can absorb a large amount of heat while the temperature remains basically unchanged. The phase change material is applied to the cooling system of the cylinder head 100. When the temperature of the cylinder head 100 rises, the phase change material rapidly absorbs heat and changes phase, thereby effectively reducing the temperature rising speed of the cylinder head 100 and enhancing the cooling effect.

[0037] In one embodiment, the cylinder further comprises a plurality of temperature sensors 120. The plurality of temperature sensors 120 are arranged at intervals in the cavity 110, and the temperature sensor 120 is configured to detect the temperature value in the cavity 110. The controller is configured to control the electromagnetic valve to be opened to make the spraying structure 300 spray the cooling liquid under the condition that at least one temperature sensor 120 detects a temperature greater than or equal to a preset temperature.

[0038] The plurality of temperature sensors 120 are arranged at intervals in the cavity 110, and can detect the temperature of the cylinder cavity 110 from different positions. The temperature distribution in the cylinder is not completely uniform, and there may be temperature differences in different areas due to factors such as combustion conditions and cooling liquid flow. A single temperature sensor 120 cannot fully reflect the temperature condition of the entire cavity 110, and blind spots are easily generated. The arrangement of multiple sensors can cover a wider area and obtain more comprehensive and accurate temperature information, ensuring accurate control of the temperature condition in the cavity 110.

[0039] Since multiple temperature sensors 120 monitor the temperature of the cavity 110 in real time, as soon as at least one sensor detects that the temperature reaches or exceeds the preset value, the controller can immediately respond to control the electromagnetic valve to open, so that the spraying structure 300 sprays the cooling liquid quickly. This rapid response mechanism can intervene in time at the initial stage of abnormal temperature rise, prevent the temperature from rising further, and effectively avoid damage to the cylinder components caused by high temperature, such as deformation of the cylinder head 100, seizure of the piston ring, and other serious problems.

[0040] In one embodiment, the spraying structure 300 is provided in multiple, and multiple spraying structures 300 are arranged at intervals in the water jacket 200, and each temperature sensor 120 corresponds to at least one spraying structure 300. When the temperature detected by the temperature sensor 120 is greater than or equal to the preset temperature, the controller controls the corresponding electromagnetic valve to open to make the corresponding spraying structure 300 spray the cooling liquid.

[0041] Each temperature sensor 120 corresponds to at least one spraying structure 300, and when the temperature sensor 120 in a certain area detects that the temperature reaches or exceeds the preset value, the controller only controls the corresponding spraying structure 300 to open. This design enables the cooling liquid to be accurately sprayed to the area where the temperature abnormally rises, achieving targeted cooling of the local high-temperature area in the cylinder. This avoids the problem of insufficient cooling of the high-temperature area and excessive cooling of the low-temperature area caused by uniform spraying of the cooling liquid in the traditional cooling method, greatly improving the accuracy and effectiveness of cooling.

[0042] During the operation of the cylinder, due to the unevenness of combustion, differences in cooling liquid flow, and other factors, the internal temperature distribution is often complex. The corresponding arrangement of multiple spraying structures 300 and temperature sensors 120 can better adapt to this complex temperature distribution. No matter where the high-temperature area appears in the cylinder, the corresponding spraying structure 300 can cool it in time, ensuring that the overall temperature of the cylinder is within a reasonable range.

[0043] Once a high temperature appears in a certain area, the corresponding spraying structure 300 can immediately respond and spray the cooling liquid to quickly remove the heat in that area. Compared with the traditional overall cooling method, this local rapid cooling can more timely suppress the rise in temperature and prevent the high temperature from further spreading and intensifying, thereby effectively improving the cooling efficiency. For example, when an abnormal situation such as knock occurs in a local area of the cylinder, causing the temperature to rise sharply, the corresponding spraying structure 300 can quickly take effect to avoid damage to the equipment due to high temperature.

[0044] Since the coolant is sprayed on demand to the high-temperature area rather than uniformly sprayed throughout the cylinder, the amount of coolant used is greatly reduced. This not only reduces the cost of coolant consumption, but also reduces other problems that may be caused by excessive coolant, such as coolant leakage, corrosion of other parts of the equipment, etc. At the same time, reducing the circulation amount of coolant also helps to reduce the energy consumption of the cooling system and improve the overall energy utilization efficiency of the equipment.

[0045] In one embodiment, the plurality of temperature sensors 120 are arranged along the length direction of the cylinder body, and the plurality of spray structures 300 are arranged along the length direction of the cylinder body.

[0046] Since each spray structure 300 corresponds to a specific area in the length direction of the cylinder body, when the temperature sensor 120 at a certain position detects that the temperature is too high, the controller can accurately control the corresponding spray structure 300 to open and spray coolant to the high-temperature area.

[0047] There is usually a temperature gradient in the cylinder body, i.e. the temperature is different at different positions. By arranging the spray structures 300 along the length direction, the coolant can be reasonably distributed according to the temperature gradient, and the cooling of the area with higher temperature can be strengthened, and the cooling of the area with lower temperature can be reduced or not cooled. In this way, the temperature distribution in the cylinder body can be more uniform, and the performance and service life of the equipment can be affected by the local temperature being too high or too low.

[0048] Of course, arranging the plurality of temperature sensors 120 along the length direction of the cylinder body is only one embodiment in this embodiment, and in other embodiments, in order to better monitor the dead angle of the cylinder body or the cylinder head 100, it is also possible to install the plurality of temperature sensors 120 in other arrangement modes.

[0049] In one embodiment, the spray structure 300 includes an extension pipe 310 and a spray head 320. The extension pipe 310 communicates with the water jacket 200, the spray head 320 communicates with the extension pipe 310, and the electromagnetic valve is installed in the spray head 320.

[0050] The extension pipe 310 is arranged so that the spray head 320 can penetrate into the cylinder and be closer to the key parts that need to be cooled. The coolant in the water jacket 200 is delivered to the spray head 320 through the extension pipe 310, compared with directly spraying on the surface of the water jacket 200, the extension pipe 310 can guide the coolant to the areas inside the cylinder where the temperature is high and the heat is concentrated, such as around the combustion chamber, near the top of the piston, etc., thereby expanding the coverage range of the coolant and improving the cooling effect, effectively preventing the key parts from being damaged due to overheating.

[0051] The combination of the extension pipe 310 and the spray head 320 can more accurately control the direction and angle of the cooling liquid spray. The spray head 320 can be designed in different shapes and apertures according to the temperature distribution and cooling requirements inside the cylinder, so that the cooling liquid can be uniformly sprayed in a suitable atomization and injection manner in the target area. In this way, the problem of excessive concentration or insufficient dispersion of cooling liquid in certain areas can be avoided, the uniformity of the temperature inside the cylinder can be improved, and the thermal stress caused by excessive local temperature difference can be reduced.

[0052] The electromagnetic valve is integrated in the spray head 320, which makes the modularization of the entire spray structure 300 higher. During equipment maintenance, if it is found that a certain spray unit fails, such as electromagnetic valve damage or spray head 320 blockage, the specific failure point can be quickly located, and the entire spray unit can be replaced or repaired without the need for large-scale disassembly and inspection of the entire cooling system, greatly shortening the repair time and reducing the maintenance cost.

[0053] In an embodiment, the spray structure 300 further comprises a mounting bracket 330. The mounting bracket 330 is mounted on the cylinder body, and the extension pipe 310 is connected with the mounting bracket 330.

[0054] The mounting bracket 330 provides a stable support point for the extension pipe 310, which can accurately fix the extension pipe 310 at a specific position on the cylinder body. During equipment operation, the cylinder body will vibrate and impact, and if there is no fixation of the mounting bracket 330, the extension pipe 310 may be displaced or shaken due to vibration, causing the spray direction and position of the spray head 320 to deviate, affecting the cooling effect. The presence of the mounting bracket 330 can effectively avoid this situation, ensuring that the extension pipe 310 and the spray head 320 always remain in the correct position and stably spray cooling liquid to the target area.

[0055] In an embodiment, the water jacket 200 comprises an inlet 210 and an outlet 220. The inlet 210 and the outlet 220 are respectively located at opposite ends of the cylinder body. The cylinder further comprises a water storage structure, the water outlet of the water storage structure is communicated with the inlet 210 of the water jacket 200, and the water inlet of the water storage structure is communicated with the outlet 220 of the water jacket 200.

[0056] The water jacket 200 and the spray structure 300 disclosed in the present application form two cooling methods, one is to make the cooling liquid flow in the water jacket 200 to absorb the problem in the cavity 110 of the cylinder, and the other is to spray cooling liquid on the key positions through the spray structure 300 to further improve the cooling effect of the key positions.

[0057] The inlet 210 and the outlet 220 of the water jacket 200 are located at opposite ends of the cylinder body, so that the cooling liquid needs to flow through the entire length of the cylinder body before it can flow out from the other end after entering the water jacket 200 from one end. This longer flow path increases the contact time of the cooling liquid with the cylinder wall, allowing the cooling liquid to fully absorb the heat generated by the cylinder during operation, thereby more effectively reducing the temperature of the cylinder and improving the cooling efficiency.

[0058] During the flow through the water jacket 200, the cooling liquid exchanges heat with the cylinder wall. Due to the long flow path, the cooling liquid has sufficient time to fully transfer heat with different parts of the cylinder wall, allowing heat to be quickly and uniformly transferred from the cylinder to the cooling liquid. In contrast, if the inlet 210 and the outlet 220 are close to each other, the cooling liquid may flow out of the water jacket 200 without fully absorbing the heat, resulting in poor cooling effect and possibly causing the cooling liquid sprayed by the spraying structure 300 to have a high temperature, resulting in poor cooling effect.

[0059] The relative arrangement of the inlet 210 and the outlet 220 of the water jacket 200 can not only improve the cooling effect of the water jacket 200 itself, but also ensure that the spraying structure 300 is provided with cooling liquid at a lower temperature, thereby ensuring the overall cooling effect.

[0060] In one embodiment, the water jacket 200 adopts a spiral structure. The cooling liquid flows in a spiral shape in the water jacket 200, increasing the contact area between the cooling liquid and the cylinder head 100 and improving the cooling effect.

[0061] In one embodiment, the water jacket 200 is provided with a hydraulic pump 230, which is used to apply pressure to the liquid in the water jacket 200, so that when the electromagnetic valve in the spraying structure 300 is opened, the cooling liquid in the water jacket 200 can be sprayed in a spraying posture, thereby ensuring the coverage of the cooling liquid.

[0062] The hydraulic pump 230 can provide additional pressure to the cooling liquid in the water jacket 200, so that it has a higher initial speed when sprayed through the spraying structure 300. This high-speed sprayed cooling liquid can reach various parts of the cylinder more quickly, especially those areas that are difficult to reach by traditional cooling methods, such as the periphery of the combustion chamber, the top of the piston, etc.

[0063] The shape of the cylinder is usually complex, with many uneven surfaces and corners. The spraying cooling method driven by the hydraulic pump 230 can better adapt to these complex shapes, and the droplets can penetrate into the gaps and corners, ensuring that these parts are also fully cooled.

[0064] In one embodiment, the cylinder head 100 includes a first cavity 111, and the cylinder body includes a second cavity. The second cavity is combined with the first cavity 111 to form a cavity 110, and the water jacket 200 is located in the first cavity 111 and / or the second cavity.

[0065] In the first implementation of the present embodiment, the water jacket 200 can be installed on the cylinder head 100, and at this time, the water jacket 200 is located in the first cavity 111. The cylinder head 100 is one of the parts with concentrated heat and severe temperature change in the engine, especially around the combustion chamber. By installing the water jacket 200 in the cylinder head 100, the coolant can directly cool the critical areas such as the combustion chamber and the valve seat ring, effectively reducing the temperature of these parts, preventing problems such as material performance degradation and thermal fatigue cracks caused by local overheating, and improving the service life and reliability of the cylinder head 100. Compared with the water jacket 200 arranged outside the cylinder head 100, the internal water jacket 200 design can reduce additional pipelines and connecting components, making the overall structure of the engine more compact.

[0066] In the second implementation of the present embodiment, the water jacket 200 can be installed on the cylinder body, and at this time, the water jacket 200 is located in the second cavity. The cylinder body is the main force component of the engine and generates a large amount of heat during operation. By installing the water jacket 200 in the cylinder body, the cylinder wall can be cooled comprehensively and uniformly, effectively reducing the working temperature of the cylinder, reducing thermal deformation and wear of the cylinder, and improving the sealing performance and durability of the cylinder. At the same time, good cooling effect also helps to improve the compression ratio and combustion efficiency of the engine, and improve the power performance and economic performance of the engine. Compared with the cylinder head 100, the structure of the cylinder body is relatively simple, and the design and layout of the internal water jacket 200 are easier to optimize.

[0067] In the third implementation of the present embodiment, the water jacket 200 can be installed on the cylinder head 100 and the cylinder body, and at this time, the water jacket 200 is located at the connection between the first cavity 111 and the second cavity. On the one hand, part of the water jacket 200 is located in the cylinder body, and its shape structure is more convenient to design, on the other hand, part of the water jacket 200 is located in the cylinder head 100, which can quickly cool the main heat concentration components, thereby ensuring the rapid temperature drop in the cavity 110.

[0068] Through the above embodiment, the application has the following beneficial effects or advantages: the cylinder disclosed in the application is provided with the spraying structure 300 communicated with the water jacket 200 and the controller and the temperature sensor 120, when the temperature in the cavity 110 reaches the preset value, the controller controls the electromagnetic valve to open, so that the spraying structure 300 sprays the cooling liquid, the inside of the cylinder can be cooled in time, especially under high load operation or high temperature environment, the problem of insufficient heat dissipation capacity of the traditional cooling system is effectively solved, and the cooling effect of the cylinder cover 100 is greatly improved. The plurality of temperature sensors 120 are arranged at intervals in the cavity 110, and can monitor the temperature change of different positions in the inside of the cylinder in real time and accurately. The controller accurately controls the opening of the electromagnetic valve corresponding to the spraying structure 300 according to the detection result of the temperature sensor 120, realizes local accurate cooling, avoids unnecessary waste of cooling liquid, and improves the utilization efficiency of cooling resources. The plurality of spraying structures 300 are arranged at intervals along the length direction of the cylinder main body and correspond to the temperature sensors 120, can comprehensively cover each area in the inside of the cylinder, ensure that the temperature of the whole cylinder is uniform during operation, and reduce the performance decline and damage risk caused by local overheating. The water jacket 200 and the water storage structure form a cooling liquid circulation loop, so that the cooling liquid can continuously cool the cylinder, and the persistence and stability of the cooling effect are ensured.

[0069] Based on the same inventive concept, the second aspect embodiment of the application discloses an engine comprising the cylinder disclosed in any of the first aspect embodiments.

[0070] The engine disclosed in the application comprises the cylinder of the first aspect, the good cooling effect makes the temperature distribution in the cylinder more uniform, which creates favorable conditions for the full atomization, mixing and combustion of fuel. The stable temperature environment helps to improve the combustion efficiency, so that the fuel is more completely combusted to release more energy, thereby improving the power output of the engine and reducing fuel consumption.

[0071] Based on the same inventive concept, the third aspect embodiment of the application discloses a vehicle comprising the engine of the second aspect embodiment.

[0072] The vehicle disclosed in the application comprises the engine disclosed in the second aspect, has higher power performance, fuel economy and driving stability, and can bring better use experience to users.

[0073] In order to make the purpose, technical scheme and advantages of the embodiments of the application clearer, the technical scheme of the embodiments of the application is described clearly and completely above in combination with the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, not all the embodiments. The components of the embodiments of the application described and shown in the drawings can be arranged and designed in various different configurations.

[0074] Therefore, the above detailed description of the embodiments of the application disclosed in the specification is not intended to limit the scope of the application, but merely represents selected embodiments of the application. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments of the application without creative work fall within the scope of the application.

[0075] It should be noted that similar reference numerals and letters refer to similar items throughout the accompanying drawings, and therefore, once an item is defined in one drawing, it is not necessary to further define and explain it in subsequent drawings.

[0076] In the description of the application, it should be understood that the terms indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the application.

[0077] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0078] In the present application, unless otherwise explicitly specified and limited, the first feature above or below the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature above, above and above the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature below, below and below the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0079] Although the preferred embodiments of the present application have been described, those of ordinary skill in the art can make further changes and modifications to the embodiments once they have been familiar with the basic inventive concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0080] Obviously, many modifications and variations of the present application are possible in light of the above teachings. It is, therefore, to be understood that within the scope of the appended claims and their equivalents, the application can be practiced otherwise than as specifically described.

Claims

1. A cylinder, characterized in that, include: Cylinder body; A cylinder head, which is attached to the cylinder body to form a cavity, and the cylinder body and / or the cylinder head are provided with heat dissipation holes; A water jacket is installed inside the cavity; The spraying structure is connected to the water jacket, and a solenoid valve is installed inside the spraying structure. The controller is electrically connected to both the solenoid valve and the solenoid valve. The controller is used to control the solenoid valve to open so that the spray structure sprays coolant when the temperature value in the cavity is greater than or equal to a preset temperature value.

2. The cylinder according to claim 1, characterized in that, The cylinder also includes multiple temperature sensors, which are spaced apart in the cavity and are used to detect the temperature value in the cavity. The controller is used to control the solenoid valve to open so that the spray structure sprays coolant when at least one of the temperature sensors detects a temperature greater than or equal to the preset temperature.

3. The cylinder according to claim 2, characterized in that, The spraying structure is configured as a plurality of spraying structures, which are spaced apart in the water jacket, and each temperature sensor corresponds to at least one spraying structure; When the temperature detected by the temperature sensor is greater than or equal to the preset temperature, the controller controls the corresponding solenoid valve to open so that the corresponding spray structure sprays coolant.

4. The cylinder according to claim 3, characterized in that, The multiple temperature sensors are spaced apart along the length of the cylinder body, and the multiple spray structures are spaced apart along the length of the cylinder body.

5. The cylinder according to claim 1, characterized in that, The spraying structure includes an extension pipe and a nozzle. The extension pipe is connected to the water jacket, and the nozzle is connected to the extension pipe. The solenoid valve is installed inside the nozzle.

6. The cylinder according to claim 5, characterized in that, The spraying structure also includes a mounting bracket, which is mounted on the cylinder body, and the extension pipe is connected to the mounting bracket.

7. The cylinder according to any one of claims 1 to 6, characterized in that, The water jacket includes an inlet and an outlet, which are located at opposite ends of the cylinder body, respectively. The cylinder also includes a water storage structure, the outlet of which is connected to the inlet of the water jacket, and the inlet of which is connected to the outlet of the water jacket.

8. The cylinder according to any one of claims 1 to 6, characterized in that, The cylinder head includes a first cavity, the cylinder body includes a second cavity, the second cavity and the first cavity together form the cavity body, and the water jacket is located in the first cavity and / or the second cavity.

9. An engine, characterized in that, Includes the cylinder as described in any one of claims 1 to 8.

10. A vehicle, characterized in that, Includes the engine as described in claim 9.

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