Adjustable cooling and stable supporting system for engine of all-terrain vehicle

Abstract

The invention discloses an adjustable cooling and stable supporting system for an all-terrain vehicle engine. The system comprises a surrounding air cooling device, a multi-element air cooling adjusting device and a liquid cooling device. The surrounding air cooling device is arranged on the periphery of a heat dissipation part of an engine in a clearance sleeving mode, the multi-element air cooling adjusting device communicates with the surrounding air cooling device, the liquid cooling device is arranged in an upper gap between the heat dissipation part and the surrounding air cooling device, and a surrounding type liquid cooling assembly is composed of a plurality of elastic bags communicating with one another. And conveying and pumping of the cooling liquid are controlled through the two-way pumping circulating pump. The system limits heat dissipation and accelerates temperature rise during cold start; natural air cooling is performed during low load; when the load is increased, the cooling fan is started; the air inlet temperature is reduced when the load is further increased; liquid cooling is carried out during medium and high load; and liquid cooling and air cooling are matched during high load. When the elastic bag is filled with the cooling liquid, the engine can be stably supported, and the operation stability is improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle technology, particularly to the field of all-terrain vehicle engine technology, and more specifically, to a multi-mode cooling system for all-terrain vehicle engines, especially to an engine cooling and stability support technology with multiple cooling modes including air cooling and liquid cooling that can adaptively adjust according to engine operating conditions. Background Technology

[0002] As a special type of vehicle adapted to various complex terrains, all-terrain vehicles require their engines to operate stably under high loads and varying operating conditions for extended periods. The engine's cooling system is one of the key technologies ensuring its normal operation, directly affecting the engine's power output, fuel economy, and service life.

[0003] Existing technologies have made some improvements in engine cooling. For example, Chinese patent CN112983621B discloses an all-terrain vehicle and its engine. This technical solution includes: a cylinder with an exhaust port and a first cooling channel; a crankcase located below the cylinder, including a second cooling channel connected to the first cooling channel; a water pump located on one side of the crankcase; and a cylinder inlet pipe, one end of which is connected to the water pump, fixed to the top of the crankcase and spaced apart from the cylinder, and the other end of which is connected to the second cooling channel. This technology, by spacing the cylinder inlet pipe from the cylinder, avoids the influence of the high-temperature exhaust pipe on the low-temperature cylinder inlet pipe, thus improving the engine cooling effect to a certain extent.

[0004] However, existing cooling technologies still have the following technical problems: First, the cooling methods are singular and lack flexibility. Most existing technologies use a single cooling method, which cannot adaptively adjust to different engine operating conditions (such as cold start, low load, medium load, high load, etc.). During the engine cold start phase, excessive cooling will prolong the preheating time and affect lubrication; while under high load conditions, a single cooling method may not provide sufficient cooling capacity, leading to engine overheating.

[0005] Secondly, there is a lack of sophisticated cooling control methods. Existing technologies cannot precisely control parameters such as the flow rate, temperature, and velocity of the cooling medium, making it difficult to achieve optimal cooling performance.

[0006] Secondly, all-terrain vehicles (ATVs) experience engine stability issues when driving on complex terrain. When ATVs travel on uneven terrain, especially during sharp turns, inclines, and obstacle crossings, the vehicles experience severe bumps and tilts, causing significant engine swaying and torsional movements. This swaying not only exacerbates fatigue damage to the engine's support structure but also affects normal engine operation, potentially leading to uneven fuel supply, ignition timing deviations, and in severe cases, impacting engine reliability and lifespan.

[0007] Therefore, it is necessary to develop a cooling system that can intelligently adjust the cooling mode according to the engine operating conditions and also has engine stability support function, so as to meet the needs of all-terrain vehicle engines for efficient and stable operation under complex conditions. Summary of the Invention

[0008] The technical problem to be solved by the present invention is that the existing all-terrain vehicle engine cooling system has a single cooling method, cannot flexibly adjust the cooling mode according to different operating conditions, and lacks the function of stabilizing the engine, resulting in low cooling efficiency, waste of resources, and insufficient engine operating stability.

[0009] To address the aforementioned technical problems, this invention provides an adjustable dual cooling and stabilization support system for an all-terrain vehicle engine, applied to the engine of an all-terrain vehicle and mounted on the vehicle frame, comprising: The air-cooling device is surrounded and fitted around the engine's heat dissipation section to achieve air-cooling around the engine. A multi-element air-cooling regulating device, connected to the surrounding air-cooling device, is used to control the air intake volume, air intake temperature, and airflow velocity. A liquid cooling device is disposed in the upper gap between the heat dissipation part and the surrounding air cooling device, and surrounds the heat dissipation part around the perimeter and the upper end, for realizing liquid cooling of the engine. The system can be adjusted to different cooling modes according to the engine's operating conditions.

[0010] Furthermore, the enclosed air-cooling device includes: an air-cooling chamber, fitted onto the heat dissipation part, with an end cap detachably connected to its upper end; an air inlet duct, formed at the front end of the air-cooling chamber, communicating with the multi-element air-cooling adjustment device; and an air outlet duct, formed at the rear end of the air-cooling chamber, facing the rear of the all-terrain vehicle and communicating with the outside.

[0011] Preferably, the air-cooled chamber has multiple heat dissipation ribs on both the left and right inner walls. The airflow direction of the heat dissipation ribs is consistent with the airflow direction from the air inlet pipe to the air outlet pipe, so as to increase the heat-receiving area and guide the airflow direction, thereby improving the air-cooling effect.

[0012] Furthermore, the multi-element air-cooled regulating device includes: two sets of air intake regulating structures; an air volume regulating drive structure connected to the two air intake regulating structures; each set of air intake regulating structures includes: an air duct shell with a cavity and a filter air inlet facing the front of the all-terrain vehicle, the filter air inlet being arranged in a mesh pattern to block debris; a connecting pipe formed on the side wall of the air duct shell and connected to the air intake pipe; an air duct valve disposed in the connecting pipe and capable of completely closing or completely opening the connecting pipe opening; and a bypass air outlet disposed on the other side of the air duct shell opposite to the filter air inlet, so that when the air duct valve is completely closed, the airflow entering from the filter air inlet can flow out from the bypass air outlet, avoiding deformation and damage caused by inconsistent pressure difference inside and outside the air duct shell.

[0013] Furthermore, the airflow adjustment drive structure includes: an adjustment drive motor; a drive rod connected to the adjustment drive motor; and a connecting rod adjustment assembly connected to the two air duct valves, including a bidirectional power transmission rod hinged to the drive rod and a connecting rod hinged to both ends of the bidirectional power transmission rod and parallel to it; the connecting rod is connected to the central axis of the air duct valve, the central axis rotates through the connecting pipe, and the bidirectional power transmission rod can simultaneously drive the two connecting rods to rotate in the same direction and at the same angle, thereby realizing synchronous control of the two air duct valves.

[0014] Importantly, the multi-element air-cooling regulation device also includes: a cooling fan, installed on the outside of the air duct housing and positioned completely opposite to the inlet of the connecting pipe, used to generate accelerated airflow to achieve wind speed regulation; a water-cooled sponge plate, installed in the air duct housing, adjacent to the cooling fan and located between the cooling fan and the inlet of the connecting pipe, used to achieve air temperature regulation for airflow cooling; and a water tank, connected to the water-cooled sponge plate via a water pipe, used to supply cold water to the water-cooled sponge plate to keep it moist.

[0015] Preferably, the air duct housing has two interconnected mounting positions extending outward on the other side of the connecting pipe. The two mounting positions can be detachably mounted with a cooling fan and a water-cooled sponge plate from the outside to the inside. The upper end of the mounting position can be detachably fitted with a cover, and the upper end of the cover has a pull strap for easy removal.

[0016] Furthermore, the liquid cooling device includes: an enclosed liquid cooling assembly surrounding the engine heat dissipation section and its upper part, which can hold coolant inside; a coolant tank for storing coolant; and a bidirectional pump for delivering or removing coolant into or from the enclosed liquid cooling assembly.

[0017] Furthermore, the enclosed liquid cooling assembly consists of multiple interconnected elastic bladders, some of which are enclosed in the gap between the heat dissipation part and the side wall of the air-cooled compartment, and others are enclosed in the gap between the heat dissipation part and the end cap; the elastic bladders are positioned above the air inlet and outlet pipes to avoid obstructing airflow during air cooling.

[0018] Preferably, when the elastic bladder is filled with coolant and expands, it is in close contact with the engine cooling section and the inner walls of the air-cooled compartment and the lower end of the end cap, so as to achieve liquid cooling while providing stable support for the torque swing of the engine.

[0019] Importantly, the system has the following six cooling modes based on the engine operating conditions: Mode 1: During the engine cold start phase, the air duct valve is completely closed to control the air intake to zero, and the air-cooled compartment is used to limit heat dissipation and accelerate the passive warm-up of the engine. Mode 2: When the engine is operating under low load, the air duct valve is opened, and natural air is used for cooling only through the filtered air inlet; Mode 3: When the engine load increases, open the air duct valve and start the cooling fan to accelerate the airflow and improve the air cooling effect. Mode 4: When the engine load increases further, open the air duct valve, start the cooling fan, and inject cold water into the water-cooled sponge plate through the water tank to reduce the temperature of the airflow entering the air-cooled compartment. Mode 5: When the engine is under medium to high load, the bidirectional pumping circulation pump is started to deliver coolant to the elastic bag, so that it is filled and expanded and then pressed against the heat dissipation part to achieve liquid cooling. Mode 6: When the engine is under high load, liquid cooling and air cooling work together for cooling, and the air cooling can be adjusted according to three levels from Mode 2 to Mode 4.

[0020] Furthermore, the system is connected to the control system of the all-terrain vehicle. A temperature sensor is installed at the engine. Based on the temperature sensed by the temperature sensor and the engine operating load, the optimal cooling mode is intelligently calculated to achieve automated cooling control.

[0021] The beneficial effects of the invention are: Multiple cooling methods are available: air cooling, liquid cooling and combined cooling are provided, which can be flexibly adjusted according to different operating conditions; Refined cooling control: The air intake volume, air speed and air temperature can be controlled through a multi-element air-cooling regulating device to achieve refined cooling regulation; Stabilizing support function: The elastic bladder in the liquid cooling system can provide stable support for the engine after it is filled with liquid, thereby improving operational stability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the structure of the present invention in conjunction with the engine and mounted on the frame of an all-terrain vehicle; Figure 2 This is a schematic diagram of the structure of the present invention applied to an all-terrain vehicle engine; Figure 3This is a schematic diagram of the structure of the present invention without the water tank and coolant tank; Figure 4 This is a structural diagram of the disassembled state of the present invention; Figure 5 This is a schematic diagram of the structure surrounding the air-cooling device of the present invention; Figure 6 This is a schematic diagram of the air intake adjustment structure of the present invention; Figure 7 This is a partial receiving schematic diagram of the multi-element air-cooled regulating device of the present invention; Figure 8 This is a schematic diagram of the liquid cooling device of the present invention.

[0023] Reference numerals: Engine 01, Cooling unit 011, Frame 02, Fixed support 03, Enclosed air-cooling device 10, Multi-element air-cooling adjustment device 20, Liquid cooling device 30, Air-cooling compartment 11, End cover 12, Air inlet duct 13, Air outlet duct 14, Cooling fins 15, Filter screen 16, Air inlet adjustment structure 21, Air volume adjustment drive structure 22, Enclosed liquid cooling assembly 31, Coolant tank 32, Two-way pump 33, Lifting handle 121 211. Duct housing 212. Filter inlet 213. Connecting pipe 214. Duct valve 215. Bypass outlet 216. Cooling fan 217. Water-cooled sponge plate 218. Adjustment drive motor 221. Drive rod 222. Linkage adjustment assembly 223. Central shaft 224. Elastic bag 311. Water tank 2171. Mounting position 2181. Cover 2182. Lifting strap 2183. Two-way power transmission rod 2231. Connecting rod 2232. Detailed Implementation

[0024] Example: This embodiment provides an adjustable dual cooling and stabilization support system for an all-terrain vehicle engine, which is applied to the engine 01 of the all-terrain vehicle (e.g., Figure 2 As shown), it is mounted on the all-terrain vehicle frame 02 (as shown). Figure 1 As shown), the engine 01 is fixedly mounted on the frame 02 via a fixed support 03. This system is partially fitted around the outside of the engine 01's cooling section 011 cylinder block (the engine cooling section can be referenced). Figure 4 On the other hand, it forms a supporting connection with the frame 02. This system can be adjusted to different cooling modes according to the operating conditions of the engine 01 to meet the cooling requirements.

[0025] refer to Figure 3 , Figure 4The adjustable dual cooling and stabilizing support system includes: a surrounding air-cooling device 10, which is spaced around the heat dissipation part 011 of the engine 01 to achieve surrounding air cooling of the engine 01; a multi-element air-cooling adjustment device 20, which is connected to the surrounding air-cooling device 10 to control the air intake volume, air intake temperature, and airflow velocity; and a liquid cooling device 30 (the liquid cooling device is as follows). Figure 4 As shown, the cooling system is located in the upper gap between the heat dissipation unit 011 and the surrounding air-cooling device 10, and surrounds the heat dissipation unit 011 on all sides and at the top, for liquid cooling of the engine 01. Therefore, this system can select air-cooling mode, liquid-cooling mode, or a combination of liquid-cooling and air-cooling mode as needed. Furthermore, the multi-element air-cooling regulating device 20 can control the air intake volume and air intake temperature to further refine the cooling mode, so that the engine 01 can have different cooling modes according to various operating conditions.

[0026] Specifically: refer to Figure 5 The enclosed air-cooling device 10 includes an air-cooling chamber 11, an air inlet pipe 13 and an air outlet pipe 14 respectively formed at the front and rear ends of the air-cooling chamber 11. The air-cooling chamber 11 is fitted onto the heat dissipation part 011, and an end cap 12 is detachably connected to its upper end. The air inlet pipe 13 is connected to the multi-element air-cooling adjustment device 20, and the air outlet pipe 14 faces the rear of the all-terrain vehicle and is connected to the outside, thereby allowing air circulation and achieving air-cooling. Two air inlet pipes 13 and two air outlet pipes 14 are provided to ensure airflow and improve the air-cooling effect. In this embodiment, the inner wall of the air-cooling chamber 11 maintains a 10mm gap with the heat dissipation part 011 of the engine 01, and the end cap 12 maintains a 30mm gap with the upper end of the heat dissipation part 011 of the engine 01.

[0027] Furthermore, to increase the heat-receiving area of ​​the air-cooled housing 11, thereby increasing the heat transferred from the engine 01 to the air-cooled housing 11 and improving the air-cooling effect, multiple heat dissipation fins 15 are provided on both the left and right inner walls of the air-cooled housing 11. The airflow direction of the heat dissipation fins 15 is consistent with the airflow direction from the air inlet duct 13 to the air outlet duct 14, so that while increasing the heat-receiving area, the heat dissipation fins 15 also guide the airflow to the air outlet duct 14, accelerating the airflow circulation speed at the heat dissipation section 011 of the engine 01, thereby further improving the air-cooling effect of the engine 01.

[0028] Preferably, filters 16 are provided on both side walls of the air-cooled chamber 11 above the air inlet duct 13 and the air outlet duct 14. This allows the heated airflow to flow upward and be discharged to the outside through the filters 16, increasing the gas flow and preventing the heated gas from stagnating in the small space between the air-cooled chamber 11 and the heat dissipation part 011, thereby further improving the air-cooling effect.

[0029] Furthermore, the air outlet duct 14 can be connected at one end to the cab and at the other end directly to the outside via a reversing valve (this structure is not shown in the figure), so that heated gas can be guided to the cab when needed, thereby improving the driver's driving comfort.

[0030] The multi-element air-cooling regulation device 20 is a core design for further refining the cooling mode. It regulates air-cooling by adjusting the airflow, air velocity, and air temperature of the incoming air. (Reference) Figure 4 The multi-element air-cooled regulating device 20 consists of two sets of air intake regulating structures 21 and an air volume regulating drive structure 22 connecting the two air intake regulating structures 21.

[0031] refer to Figure 6 Each air intake adjustment structure 21 includes a duct housing 211 with a cavity. The duct housing 211 is provided with a filter air intake 212 facing the front of the all-terrain vehicle. The filter air intake 212 is arranged in a grid pattern to block debris, fallen leaves and other objects from entering from the air intake. The side wall of the duct housing 211 is formed with a connecting pipe 213 that communicates with the air intake pipe 13. The connecting pipe 213 is provided with an air duct valve 214. The air duct valve 214 can completely close the opening of the connecting pipe 213 or completely open the opening of the connecting pipe 213.

[0032] refer to Figure 7 The airflow regulating drive structure 22 is used to simultaneously control the two duct valves 214 to open to the same degree. It includes, in sequence according to the power transmission direction, an regulating drive motor 221, a drive rod 222, and a linkage regulating assembly 223 connected to the two duct valves 214. The linkage regulating assembly 223 includes a bidirectional power transmission rod 2231 hinged to the drive rod 222, and a connecting rod 2232 hinged to both ends of the bidirectional power transmission rod 2231 and parallel to it. The bidirectional power transmission rod 2231 can simultaneously drive the two connecting rods 2232 to rotate in the same direction and by the same angle. The connecting rod 2232 is connected to the central axis 224 of the duct valve 214. The central axis 224 rotates through the connecting pipe 213 (e.g., ...). Figure 7 The diagram shows the duct valve 214 in a semi-open state, with the arrow above indicating the direction of rotation to fully open it.

[0033] Therefore, the airflow generated by the all-terrain vehicle can enter through the filter air inlet 212, and then the rotation angle of the air duct valve 214 can be adjusted by the air volume adjustment drive structure 22, thereby adjusting the connection area between the inlet of the connecting pipe 213 and the cavity of the air duct housing 211, so as to adjust the air intake volume. The incoming airflow then flows from the connecting pipe 213 and the air intake pipe 13 to the air-cooled compartment 11 in sequence, taking away the heat dissipated by the engine 01 in the air-cooled compartment 11, and then being discharged from the air outlet pipe 14, thus achieving air-cooling of the engine 01.

[0034] refer to Figure 6The air duct housing 211 is also provided with a bypass air outlet 215 on the other side opposite the filter air inlet 212. When the air duct valve 214 is completely closed, the airflow entering from the filter air inlet 212 can flow out from the bypass air outlet 215, forming a circulation of airflow and avoiding deformation and damage to the air duct housing 211 due to inconsistent pressure difference inside and outside. To further utilize the low-temperature air flowing out from the bypass air outlet 215 and improve resource utilization, the bypass air outlet 215 can be connected at one end to the driver's cab and at the other end directly to the outside through a reversing valve (this structure is not shown in the figure). Therefore, the low-temperature airflow can be diverted to the driver's cab according to the driver's needs, improving the driver's comfort.

[0035] refer to Figure 7 The multi-element air-cooling regulating device 20 is also designed with wind speed regulation function and air temperature regulation function. The wind speed regulation function is achieved by installing a cooling fan 216 on the outside of the air duct housing 211. The cooling fan 216 and the opening of the connecting pipe 213 are completely opposite to each other, so that the accelerated airflow generated by the cooling fan 216 can flow quickly into the connecting pipe 213 along the shortest path. The air temperature regulation function is achieved by installing a water-cooled sponge plate 217 in the air duct housing 211. The water-cooled sponge plate 217 is arranged adjacent to the cooling fan 216 and is located between the cooling fan 216 and the opening of the connecting pipe 213. This allows the accelerated airflow generated by the cooling fan 216 to directly pass through the water-cooled sponge plate 217 to achieve air cooling, and then flow into the connecting pipe 213 along the shortest path.

[0036] Furthermore, to facilitate the replacement or maintenance and cleaning of the water-cooled sponge plate 217 and the cooling fan 216, the air duct housing 211 extends outward on the other side of the relative connecting pipe 213 with two interconnected mounting positions 2181. The cooling fan 216 and the water-cooled sponge plate 217 can be detachably mounted on the two mounting positions 2181 from the outside to the inside. A cover 2182 can be detachably fitted onto the upper end of the mounting position 2181. The upper end of the cover 2182 has a lifting strap 2183 for easy removal.

[0037] Preferably, to ensure that the water-cooled sponge plate 217 can be kept moist at all times, the water-cooled sponge plate 217 is connected to a water tank 2171 via a water pipe (e.g., ...). Figure 2 , Figure 4 As shown in the figure, when it is necessary to reduce the air temperature for air cooling, the valve of water tank 2171 can be opened to allow cold water to soak the water-cooled sponge plate 217.

[0038] refer to Figure 8The liquid cooling device 30 includes: an enclosed liquid cooling assembly 31, which surrounds the heat dissipation part 011 of the engine 01 and its upper end, and can hold coolant inside; a coolant tank 32, which is used to store coolant; and a bidirectional pumping circulation pump 33, which is used to deliver or extract coolant into the enclosed liquid cooling assembly 31. Its bidirectional pumping function is existing technology, so its structure will not be described in detail.

[0039] The enclosed liquid cooling assembly 31 is composed of multiple interconnected elastic bladders 311. A portion of these elastic bladders 311 are enclosed within the gap between the heat dissipation section 011 and the side wall of the air-cooled compartment 11, while another portion is enclosed within the gap between the heat dissipation section 011 and the end cap 12 (this portion of the bladder is not shown in the figure). The end cap 12 has a handle 121 (e.g., for easy removal of the enclosed liquid cooling assembly 31) that facilitates its removal. Figure 8 (As shown). To prevent the elastic bladder 311 from obstructing the airflow from the air inlet duct 13 to the air outlet duct 14 during air cooling, the elastic bladder 311 is positioned above the air inlet duct 13 and the air outlet duct 14.

[0040] When liquid cooling is performed, the bidirectional pumping circulation pump 33 is started to deliver the coolant in the coolant tank 32 to each elastic bladder 311. The elastic bladder 311 is filled with coolant and expands, thus adhering tightly to the heat dissipation part 011 of the engine 01, as well as the inner walls around the air-cooled compartment 11 and the lower end of the end cover 12, to achieve liquid cooling. In addition, this close contact also provides certain support to the heat dissipation part 011 of the engine 01, thereby supporting the torque swing of the engine 01 and effectively improving the operating stability of the engine 01.

[0041] Based on the engine's operating conditions, this system can be divided into the following six cooling modes: Engine 01 Cold Start Phase: Mode 1: When in the cold start stage, the air duct valve 214 is completely closed, and the air intake is controlled to zero. This causes the air-cooled compartment 11 surrounding the heat dissipation part 011 to restrict the heat dissipation of the engine 01, accelerate the passive warm-up rate of the engine 01, and thus increase the preheating rate of the engine oil, so that it can achieve the best lubrication effect in the shortest time.

[0042] Engine 01 is operating under low to medium load conditions and is being cooled by air. Mode 2: When the load is very low, open the air duct valve 214 to allow only natural air to pass through the filter air inlet 212 into the air-cooled chamber 11 for natural air cooling. Mode 3: When the load increases slightly, open the air duct valve 214 and turn on the cooling fan 216 to accelerate the airflow and improve the air cooling effect; Mode 4: When the load increases further, the air duct valve 214 and the cooling fan 216 are opened, and cold water is injected into the water-cooled sponge plate 217 through the water tank 2171 to reduce the airflow temperature entering the air-cooled chamber 11, thereby further improving the cooling effect of air cooling.

[0043] Engine 01 is operating under medium to high load conditions and is being cooled by liquid cooling. Mode 5: When under medium to high load, liquid cooling is selected. The bidirectional pumping circulation pump 33 is started to deliver coolant to each elastic bag 311, so that it expands after being filled with coolant and sticks tightly to the heat dissipation part 011 of the engine 01 to achieve liquid cooling. Mode 6: When under high load, liquid cooling and air cooling can be combined for cooling. Air cooling can be further divided into three cooling levels, which can be operated according to the liquid cooling and air cooling steps above.

[0044] To achieve intelligent heat dissipation, this system is connected to the control system of the all-terrain vehicle, and a temperature sensor is installed at the engine 01. Based on the temperature sensed by the temperature sensor and the operating load of the engine 01, the optimal cooling mode is calculated, thereby achieving and maintaining the optimal cooling temperature of the engine 01 under the operating conditions with minimal resources.

[0045] In summary, the multi-mode cooling system for all-terrain vehicle engines provided by this invention achieves a breakthrough in engine cooling technology by integrating a surrounding air-cooling device, a multi-element air-cooling adjustment device, and a liquid-cooling device. This system not only solves the problems of limited cooling methods and adjustment capabilities in existing technologies, but also achieves cooling control across all operating conditions, from cold starts to high loads, through flexible switching of cooling modes.

[0046] The core of this invention lies in the following: First, the multi-element air-cooling adjustment device enables precise three-dimensional adjustment of air intake volume, wind speed, and wind temperature, significantly improving the adjustment accuracy and cooling efficiency of the air-cooling system; Second, the elastic bladder design in the liquid cooling device not only provides efficient liquid cooling but also serves as a stable support for the engine, effectively solving the problem of engine swaying when all-terrain vehicles are driving on complex terrain.

[0047] This invention is not only applicable to all-terrain vehicle engines, but can also be extended to other engine systems requiring efficient cooling and stable support, possessing broad application prospects and significant technical value. Through the implementation of this invention, the working efficiency, reliability, and service life of all-terrain vehicle engines can be significantly improved, providing crucial technical support for the development of all-terrain vehicle technology.

Claims

1. An adjustable cooling and stabilizing support system for an all-terrain vehicle engine, applied to an engine (01) of an all-terrain vehicle, mounted on a frame (02) of the all-terrain vehicle, characterized in that, The system comprises: a surrounding air cooling device (10) sleeved on the outer periphery of a heat dissipation part (011) of an engine (01) to achieve surrounding air cooling of the engine (01); a multi-element air cooling adjusting device (20) in communication with the surrounding air cooling device (10) to control the air inlet amount, air inlet temperature and air flow speed; a liquid cooling device (30) arranged in an upper gap between the heat dissipation part (011) and the surrounding air cooling device (10) and surrounding the periphery and upper end of the heat dissipation part (011) to achieve liquid cooling of the engine (01); the system can be adjusted to different cooling modes according to the operating conditions of the engine (01).

2. The ATV engine adjustable cooling and stabilizing support system of claim 1, wherein, The surrounding air cooling device (10) comprises: an air cooling bin (11) sleeved on the heat dissipation part (011), the upper end of the air cooling bin (11) being detachably connected with an end cover (12); an air inlet pipeline (13) formed on the front end of the air cooling bin (11) and in communication with the multi-element air cooling adjusting device (20); an air outlet pipeline (14) formed on the rear end of the air cooling bin (11) and facing the tail of the all-terrain vehicle and in communication with the outside.

3. The ATV engine adjustable cooling and stabilizing support system of claim 2, wherein, A plurality of heat dissipation rib plates (15) are arranged on the left and right inner walls of the air cooling bin (11), the airflow flow direction of the heat dissipation rib plates (15) being consistent with the direction of airflow flowing from the air inlet pipeline (13) to the air outlet pipeline (14).

4. The ATV engine adjustable cooling and stabilizing support system of claim 2, wherein, The multi-element air cooling adjusting device (20) comprises: two groups of air inlet adjusting structures (21); an air volume adjusting driving structure (22) connected with the two air inlet adjusting structures (21); each group of air inlet adjusting structures (21) comprises: an air duct shell (211) with a cavity and provided with a filtered air inlet (212) facing the head of the all-terrain vehicle; a communication pipe (213) formed on the side wall of the air duct shell (211) and in communication with the air inlet pipeline (13); an air duct valve (214) arranged in the communication pipe (213).

5. The ATV engine adjustable cooling and stabilizing support system of claim 4, wherein, The air volume adjusting driving structure (22) comprises: an adjusting driving motor (221); a driving short rod (222) connected with the adjusting driving motor (221); a connecting rod adjusting assembly (223) connected with the two air duct valves (214) and comprising a bidirectional power transmission rod (2231) hinged with the driving short rod (222), and connecting rods (2232) hinged on both ends of the bidirectional power transmission rod (2231) and parallel to each other; the connecting rods (2232) are connected with central shafts (224) of the air duct valves (214), and the central shafts (224) are arranged in the communication pipe (213) in rotation.

6. The ATV engine adjustable cooling and stabilizing support system of claim 2, wherein, The liquid cooling device (30) comprises: a surrounding liquid cooling assembly (31) surrounding the periphery and upper end of the heat dissipation part (011) of the engine (01) and capable of containing cooling liquid; a cooling liquid tank (32) for storing the cooling liquid; a bidirectional pumping circulation pump (33) for pumping or pumping away the cooling liquid into or out of the surrounding liquid cooling assembly (31).

7. The ATV engine adjustable cooling and stabilizing support system of claim 6, wherein, The surrounding liquid cooling assembly (31) is composed of a plurality of interconnected elastic bags (311), wherein a part of the elastic bags (311) are enclosed in the gap between the heat dissipation part (011) and the side wall of the air cooling warehouse (11), and the other part is enclosed in the gap between the heat dissipation part (011) and the end cover (12); the elastic bags (311) are arranged above the air inlet pipe (13) and the air outlet pipe (14).

8. The ATV engine adjustable cooling and stabilizing support system of claim 7, wherein, When the elastic bags (311) are filled with cooling liquid and expanded, they are tightly attached to the inner wall around the heat dissipation part (011) of the engine (01) and the air cooling warehouse (11) and the lower end of the end cover (12), thereby providing support for the torque swing of the engine (01).

9. The ATV engine adjustable cooling and stabilizing support system of claim 7, wherein, The system has the following six cooling modes according to the operating conditions of the engine (01): Mode one: during the cold start stage of the engine (01), the air inlet amount is controlled to be zero by the air cooling device (10); Mode two: during the low load operating condition of the engine (01), the natural air cooling is performed by the air cooling device (10); Mode three: when the load of the engine (01) increases, the air flow circulation speed is accelerated by the air cooling device (10); Mode four: when the load of the engine (01) further increases, the air inlet temperature is adjusted by the air cooling device (10) and the multi-element air cooling adjusting device (20); Mode five: when the engine (01) is in medium and high load, the cooling liquid is delivered to the elastic bags (311) by the liquid cooling device (30) to realize liquid cooling; Mode six: when the engine (01) is in high load, the liquid cooling and air cooling are cooperated to cool.

10. The ATV engine adjustable cooling and stabilizing support system of claim 9, wherein, The system is connected with the control system of the all-terrain vehicle, and a temperature sensor is arranged at the engine (01), and the best cooling mode is calculated according to the sensing temperature of the temperature sensor and the operating load condition of the engine (01).

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