Dry-type oil pan engine efficient heat management system with independent oil tank

Abstract

The invention relates to an efficient heat management system of a dry oil pan engine with an independent oil tank, and relates to the technical field of engine heat management systems, the efficient heat management system comprises an engine cylinder body, a dry oil pan, an oil tank, a transportation assembly and a cooling assembly, and the dry oil pan is fixedly installed at the bottom end of the engine cylinder body; the oil tank is fixedly arranged on the vehicle body and communicates with the dry type oil pan. The two ends of the conveying assembly are connected with the dry type oil pan and the oil tank correspondingly and used for circulating lubricating oil in the oil tank. The two ends of the cooling assembly are connected with the dry type oil pan and the oil tank correspondingly, and the cooling assembly is used for cooling lubricating oil in the dry type oil pan and lubricating oil in the oil tank. The engine cooling device has the effect of improving the engine cooling efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of engine thermal management systems, and in particular to a high-efficiency thermal management system for a dry sump engine with an independent oil tank. Background Art

[0002] The oil pan is the lower part of the crankcase, also known as the lower crankcase. Its function is to seal the crankcase as the outer shell of the oil tank to prevent impurities from entering, collect and store the lubricating oil flowing back from the friction surfaces of the diesel engine, dissipate some heat, and prevent the lubricating oil from oxidizing.

[0003] At present, most general oil pans use wet oil pans, which usually store the engine oil directly at the bottom of the crankcase. The crankshaft throw and the connecting rod big end will enter the lubricating oil in the oil pan in each movement cycle, and at the same time stir up a certain amount of oil splashes and oil mist to lubricate the crankshaft and bearings.

[0004] However, under extreme conditions, such as high-speed driving, sharp turns or bumpy roads, the lubricating oil in the oil pan may not be supplied stably, which can easily affect the heat dissipation effect. Summary of the invention

[0005] In order to improve the heat dissipation efficiency of the engine, the present application provides a high-efficiency thermal management system for a dry sump engine with an independent oil tank.

[0006] The present application provides a high-efficiency thermal management system for a dry sump engine with an independent oil tank, which adopts the following technical solutions: A high-efficiency thermal management system for a dry sump engine with an independent oil tank, comprising: Engine block; A dry oil sump, fixedly mounted on the bottom end of the engine cylinder block; An oil tank, fixedly mounted on the vehicle body and connected to the dry oil sump; A transport component, the two ends of which are respectively connected to the dry oil sump and the oil tank, and is used to circulate the lubricating oil in the oil tank; Cooling assembly, including: a detection unit, disposed on the dry oil sump and used to detect the temperature of the lubricating oil in the dry oil sump; A heat dissipation part, two ends of which are respectively connected to the detection part and the cooling part, and is used to drive the lubricating oil in the dry oil sump to cool down; The cooling unit is arranged on the oil tank and is used for cooling the lubricating oil in the oil tank.

[0007] By adopting the above technical scheme, the transport component extracts the lubricating oil in the oil tank into the dry oil sump, and the lubricating oil in the oil tank is circulated by the transport component. The crankshaft throw and the connecting rod big end in the engine cylinder block can continuously use the lubricating oil to lubricate the crankshaft and the bearing. During the lubrication process, the detection unit detects the temperature of the lubricating oil in the dry oil sump. When the temperature exceeds a preset threshold, the heat dissipation unit cools the lubricating oil in the dry oil sump, and the cooling unit cools the lubricating oil in the oil tank, which effectively prevents the lubricating oil from overheating and reduces problems such as oxidation and deterioration of the lubricating oil caused by high temperature, thereby extending the service life of the lubricating oil and the overall life of the engine, and further improving the heat dissipation efficiency of the engine.

[0008] Optionally, a connecting pipe is provided on the dry oil sump, and the detection unit includes: An induction airbag is sleeved on the connecting pipe and filled with inert gas; A fixed airbag, fixedly mounted on the dry oil sump, the fixed airbag being sleeved on the sensing airbag and abutting against the sensing airbag; The pressure sensor is fixedly arranged in the fixed airbag and electrically connected to an external control source. The pressure sensor is used to output an air pressure signal in the fixed airbag.

[0009] By adopting the above technical solution, when the temperature exceeds the preset threshold, the temperature at the connecting pipe increases significantly during the circulation process. Since the inert gas is very sensitive to temperature changes, the inert gas in the sensing airbag expands due to the heat motion, and the sensing airbag squeezes the fixed airbag, increasing the pressure in the fixed airbag. The pressure sensor detects the air pressure in the fixed airbag and outputs an air pressure signal to an external control source. The external control source controls the transport component to speed up the circulation. The pressure sensor monitors and feeds back the air pressure changes in the fixed airbag in real time, thereby achieving accurate monitoring of the oil level changes in the oil pan, and thus easily improving the durability and reliability of the entire detection system.

[0010] Optionally, the heat dissipation unit includes: An impeller rotatably connected in the connecting pipe; A bevel gear 1, coaxially connected to the impeller; Bevel gear 2 is meshed with bevel gear 1 and is rotatably connected with the connecting pipe; A connecting shaft is coaxially connected to the second bevel gear, and the axial direction of the connecting shaft is parallel to the axial direction of the connecting pipe; The stirring wheel is coaxially connected to the connecting shaft and is located in the dry oil sump.

[0011] By adopting the above technical solution, when the temperature exceeds the preset threshold, the external control source controls the transport component to speed up the circulation speed. At this time, the flow rate of the lubricating oil increases, and the lubricating oil impacts the impeller to speed up the rotation. The impeller drives the bevel gear one to rotate, and the bevel gear one drives the bevel gear two to rotate. The bevel gear two drives the connecting shaft to rotate, and the connecting shaft drives the stirring wheel to stir the lubricating oil in the dry oil sump. Through stirring, the contact area between the lubricating oil and the air is significantly increased, making it easy for the lubricating oil to dissipate heat, thereby helping to reduce the operating temperature of the engine.

[0012] Optionally, the cooling unit includes: A water tank is fixed on the vehicle body; A condenser pipe is fixedly mounted on the outer wall of the oil tank, and both ends thereof are connected to the water tank through a guide pipe; The water pump is connected in series to the flow guide pipe and is electrically connected to an external control source.

[0013] By adopting the above technical solution, when the temperature exceeds the preset threshold, the external control source controls the water pump to start, and the water pump draws cold water from the water tank into the condenser. The condenser absorbs the heat emitted from the oil tank to achieve heat exchange, so that the temperature of the lubricating oil in the oil tank is easy to drop, thereby ensuring the stability of the lubricating oil temperature and avoiding the problem of lubricating oil performance degradation due to excessive temperature.

[0014] Optionally, a plurality of stirring wheels are provided, and the plurality of stirring wheels are arranged along the axial direction of the connecting shaft.

[0015] By adopting the above technical solution, by increasing the number of stirring wheels, a wider area within the dry oil sump can be covered, which helps to ensure that the lubricating oil in the dry oil sump is fully stirred and cooled, thereby easily reducing performance degradation caused by local overheating.

[0016] Optionally, the transport component includes: An oil supply pipeline, one end of which is connected to the connecting pipe, and the other end of which is connected to the top of the oil tank; An oil delivery pipeline, one end of which is connected to the engine cylinder block, and the other end of which is connected to the bottom of the oil tank; Wherein, the oil supply pipeline and the oil delivery pipeline are both connected in series with oil pumps, and an organic filter device is arranged on the oil delivery pipeline, and the organic filter device is used to remove impurities in the lubricating oil.

[0017] By adopting the above technical solution, under the drive of the oil pump, the lubricating oil can circulate between the dry oil sump and the oil tank through the oil supply pipeline and the oil delivery pipeline. During the circulation process, the oil filter device removes impurities in the lubricating oil to prevent the impurities from entering the engine and causing damage to the engine. Through the entire transportation component, smooth circulation and efficient filtration of the lubricating oil are achieved, thereby improving the stability and reliability of the system.

[0018] Optionally, the condenser is serpentine-shaped.

[0019] By adopting the above technical solution, the total length and surface area of ​​the condenser tube are greatly increased, thereby providing more cooling area, so that more heat can be transferred and dissipated per unit time, thereby improving the efficiency of heat exchange.

[0020] Optionally, the dry oil sump is made of aluminum alloy casting material.

[0021] By adopting the above technical solution, the dry oil sump cast by aluminum alloy is lighter than cast iron, which helps to reduce the weight of the vehicle, improve fuel economy, and reduce energy consumption during vehicle operation; In addition, aluminum alloy has excellent thermal conductivity and can quickly dissipate the heat in the oil pan to the surrounding environment, which is important for maintaining a stable oil temperature and preventing overheating, and helps extend the service life of the oil and engine.

[0022] Optionally, the impeller, the bevel gear 1 and the bevel gear 2 are all made of aluminum alloy casting material.

[0023] By adopting the above technical solution, aluminum alloy, as a lightweight material, significantly reduces the weight of the impeller and bevel gear, making it easier for the lubricating oil to drive the impeller to rotate and speeding up the rotation efficiency.

[0024] In summary, the present application includes at least one of the following beneficial technical effects: 1. By arranging the impeller, bevel gear 1, bevel gear 2, connecting shaft and stirring wheel, the contact area between the lubricating oil and the air is significantly increased through stirring, making it easy for the lubricating oil to dissipate heat, thereby helping to reduce the operating temperature of the engine; 2. By setting up the induction airbag, fixed airbag and pressure sensor, the pressure sensor monitors and feeds back the air pressure change in the fixed airbag in real time, thereby realizing the accurate monitoring of the oil level change in the oil pan, and thus facilitating the improvement of the durability and reliability of the entire detection system; 3. By setting up a water tank, a condenser and a water pump, the temperature of the lubricating oil in the oil tank can be easily reduced, thereby ensuring the stability of the lubricating oil temperature and avoiding the problem of lubricating oil performance degradation caused by excessive temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application; Figure 2 is a cross-sectional view of a cooling assembly in an embodiment of the present application; Figure 3 yes Figure 2 Magnified view at A in the middle; Figure 4 It is a schematic diagram of the structure of the transport component in the embodiment of the present application.

[0026] Description of reference numerals: 1. Engine block; 2. Dry sump; 21. Connecting pipe; 3. Fuel tank; 4. Transport assembly; 41. Fuel supply pipeline; 42. Fuel delivery pipeline; 43. Fuel pump; 44. Oil filter; 5. Cooling assembly; 51. Detection unit; 511. Inductive airbag; 512. Fixed airbag; 513. Pressure sensor; 52. Heat dissipation unit; 521. Impeller; 522. Bevel gear one; 523. Bevel gear two; 524. Coupling; 525. Agitator wheel; 53. Cooling unit; 531. Water tank; 532. Condenser; 533. Water pump. DETAILED DESCRIPTION

[0027] The following is combined with Figure 1-4 This application is described in further detail.

[0028] The embodiment of the present application discloses a high-efficiency thermal management system for a dry sump 2 engine with an independent oil tank 3. Figure 1 and Figure 2 A high-efficiency thermal management system for a dry oil sump 2 engine with an independent oil tank 3 comprises an engine block 1, a dry oil sump 2, an oil tank 3, a transport component 4 and a cooling component 5. The dry oil sump 2 is fixedly mounted on the bottom end of the engine block 1 and is made of aluminum alloy casting material; the oil tank 3 is fixedly mounted on the vehicle body and is connected to the dry oil sump 2; the two ends of the transport component 4 are respectively connected to the dry oil sump 2 and the oil tank 3, and are used to circulate the lubricating oil in the oil tank 3; the two ends of the cooling component 5 are respectively connected to the dry oil sump 2 and the oil tank 3, and are used to cool the lubricating oil in the dry oil sump 2 and the lubricating oil in the oil tank 3.

[0029] When in use, the transport component 4 draws the lubricating oil in the oil tank 3 into the dry oil sump 2, and the lubricating oil in the oil tank 3 is circulated through the transport component 4. During the lubrication process, when the temperature exceeds a preset threshold, the cooling component 5 cools the lubricating oil in the dry oil sump 2 and the lubricating oil in the oil tank 3, effectively preventing the lubricating oil from overheating and reducing problems such as lubricating oil oxidation and deterioration caused by high temperature, thereby extending the service life of the lubricating oil and the overall life of the engine, and further improving the heat dissipation efficiency of the engine.

[0030] Reference Figure 1 The dry oil sump 2 is provided with a connecting pipe 21, and the transport assembly 4 includes an oil supply pipeline 41 and an oil delivery pipeline 42. One end of the oil supply pipeline 41 is connected to the connecting pipe 21, and the other end is connected to the top of the oil tank 3. One end of the oil delivery pipeline 42 is connected to the engine cylinder 1, and the other end is connected to the bottom of the oil tank 3.

[0031] Reference Figure 1 An oil pump 43 is connected in series on the oil supply pipeline 41 and the oil delivery pipeline 42. An organic filter device 44 is provided on the oil delivery pipeline 42. The organic filter device 44 is used to remove impurities in the lubricating oil.

[0032] When in use, the oil pump 43 is started to extract lubricating oil, and the lubricating oil can circulate between the dry oil sump 2 and the oil tank 3 through the oil supply pipeline 41 and the oil delivery pipeline 42. During the circulation process, the oil filter device 44 removes impurities in the lubricating oil to prevent the impurities from entering the engine and causing damage to the engine, thereby achieving smooth circulation and efficient filtration of the lubricating oil, thereby improving the stability and reliability of the system.

[0033] Reference Figures 1 to 3 The cooling assembly 5 includes a detection part 51, a heat dissipation part 52 and a cooling part 53. The detection part 51 includes a sensing airbag 511, a fixed airbag 512 and a pressure sensor 513. The sensing airbag 511 is sleeved on the connecting pipe 21 and is filled with an inert gas. In the embodiment of the present application, the inert gas is preferably helium.

[0034] Reference Figure 1 and Figure 2 The fixed airbag 512 is fixed on the dry oil sump 2, and the fixed airbag 512 is sleeved on the sensing airbag 511 and abuts against the sensing airbag 511. The pressure sensor 513 is fixed in the fixed airbag 512 and electrically connected to the external control source. The pressure sensor 513 is used to output the air pressure signal in the fixed airbag 512.

[0035] Reference Figure 3 The heat dissipation part 52 includes an impeller 521, a bevel gear 1 522, a bevel gear 2 523, a connecting shaft 524 and a stirring wheel 525. The impeller 521 is rotatably connected in the connecting pipe 21. The bevel gear 1 522 is coaxially fixedly connected with the impeller 521 through a rotating shaft. The bevel gear 2 523 is meshed with the bevel gear 1 522 and is rotatably connected with the connecting pipe 21.

[0036] Reference Figure 3 The connecting shaft 524 is coaxially connected to the bevel gear 2 523, and the axial direction of the connecting shaft 524 is arranged parallel to the axial direction of the connecting pipe 21. The stirring wheel 525 is coaxially connected to the connecting shaft 524 and is located in the dry oil sump 2. The impeller 521, the bevel gear 1 522 and the bevel gear 2 523 are all made of aluminum alloy casting material.

[0037] Reference Figure 1 and Figure 4The cooling unit 53 includes a water tank 531, a condenser 532 and a water pump 533. The water tank 531 is fixed on the vehicle body and is located on one side of the fuel tank 3. The condenser 532 is serpentine and fixed on the outer wall of the fuel tank 3. Both ends of the condenser 532 are connected to the water tank 531 through a guide pipe. The water pump 533 is connected in series to the guide pipe and is electrically connected to an external control source.

[0038] During use, when the temperature exceeds a preset threshold, the inert gas in the sensing airbag 511 senses that the temperature at the connecting pipe 21 is significantly increased. Under the action of thermal motion, the sensing airbag 511 is heated and expanded, and the sensing airbag 511 squeezes the fixed airbag 512, and the pressure in the fixed airbag 512 increases. The pressure sensor 513 detects the air pressure in the fixed airbag 512 and outputs an air pressure signal to the external control source. The external control source controls the transport component 4 to speed up the circulation speed, and the flow rate of the lubricating oil increases at this time. The lubricating oil impacts the impeller 521 to accelerate the rotation, the impeller 521 drives the bevel gear 1 522 to rotate, the bevel gear 1 522 drives the bevel gear 2 523 to rotate, the bevel gear 2 523 drives the connecting shaft 524 to rotate, the connecting shaft 524 drives the stirring wheel 525 to stir the lubricating oil in the dry oil sump 2, so that the lubricating oil in the dry oil sump 2 is easy to dissipate heat; At the same time, the external control source controls the water pump 533 to start, and the water pump 533 draws cold water from the water tank 531 into the condenser 532. The condenser 532 absorbs the heat emitted from the oil tank 3, making it easy to reduce the temperature of the lubricating oil in the oil tank 3, thereby ensuring the stability of the lubricating oil temperature and further improving the heat dissipation efficiency of the engine.

[0039] The implementation principle of the high-efficiency thermal management system of a dry sump 2 engine with an independent oil tank 3 in the embodiment of the present application is as follows: through the oil pump 43, the lubricating oil can circulate between the dry sump 2 and the oil tank 3 through the oil supply pipeline 41 and the oil delivery pipeline 42, and the oil filter device 44 removes impurities in the lubricating oil to prevent the impurities from entering the engine; During the circulation process, the inert gas in the sensing airbag 511 senses the temperature at the connecting pipe 21 to determine that the temperature of the lubricating oil has risen. When the temperature exceeds the preset threshold, the sensing airbag 511 expands due to the heat movement, and the sensing airbag 511 squeezes the fixed airbag 512. The pressure sensor 513 detects the air pressure in the fixed airbag 512 and outputs an air pressure signal to the external control source. The external control source controls the transport component 4 to speed up the circulation speed, and the flow rate of the lubricating oil increases at this time. The lubricating oil impacts the impeller 521 to accelerate its rotation. Through the bevel gear set, the impeller 521 drives the connecting shaft 524 to rotate. The connecting shaft 524 drives the stirring wheel 525 to stir the lubricating oil in the dry oil sump 2, so that the lubricating oil in the dry oil sump 2 can be easily dissipated. At the same time, the external control source controls the water pump 533 to start, and the water pump 533 draws cold water from the water tank 531 into the condenser 532. The condenser 532 absorbs the heat emitted from the oil tank 3, making it easy to reduce the temperature of the lubricating oil in the oil tank 3, thereby ensuring the stability of the lubricating oil temperature and further improving the heat dissipation efficiency of the engine.

[0040] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A high-efficiency thermal management system for a dry sump engine with an independent oil tank, characterized in that: include: Engine block (1); A dry oil sump (2) fixedly mounted on the bottom end of the engine cylinder block (1); An oil tank (3) is fixedly mounted on the vehicle body and is in communication with the dry oil sump (2); A transport component (4), the two ends of which are respectively connected to the dry oil sump (2) and the oil tank (3), and is used to circulate the lubricating oil in the oil tank (3); The cooling assembly (5) comprises: a detection unit (51) disposed on the dry oil sump (2) and used to detect the temperature of the lubricating oil in the dry oil sump (2); A heat dissipation portion (52), two ends of which are respectively connected to the detection portion (51) and the cooling portion (53), and are used to cool the lubricating oil in the dry oil sump (2); The cooling unit (53) is arranged on the oil tank (3) and is used to cool the lubricating oil in the oil tank (3).

2. A high-efficiency thermal management system for a dry sump engine with an independent oil tank according to claim 1, characterized in that: The dry oil sump (2) is provided with a connecting pipe (21), and the detection unit (51) comprises: A sensing airbag (511) is sleeved on the connecting pipe (21) and is filled with an inert gas; A fixed airbag (512) is fixedly mounted on the dry oil sump (2); the fixed airbag (512) is sleeved on the sensing airbag (511) and abuts against the sensing airbag (511); The pressure sensor (513) is fixedly arranged in the fixed airbag (512) and is electrically connected to an external control source. The pressure sensor (513) is used to output an air pressure signal in the fixed airbag (512).

3. A high-efficiency thermal management system for a dry sump engine with an independent oil tank according to claim 2, characterized in that: The heat dissipation portion (52) comprises: An impeller (521) rotatably connected to the connecting pipe (21); A bevel gear (522) is coaxially fixedly connected to the impeller (521); Bevel gear 2 (523) meshes with bevel gear 1 (522) and is rotationally connected to the connecting pipe (21); A connecting shaft (524) is coaxially fixedly connected to the second bevel gear (523), and the axial direction of the connecting shaft (524) is arranged parallel to the axial direction of the connecting pipe (21); The stirring wheel (525) is coaxially fixedly connected to the connecting shaft (524) and is located in the dry oil sump (2).

4. A high-efficiency thermal management system for a dry sump engine with an independent oil tank according to claim 1, characterized in that: The cooling unit (53) comprises: A water tank (531) is fixedly mounted on the vehicle body; A condenser pipe (532) is fixedly mounted on the outer wall of the oil tank (3), and both ends of the condenser pipe are connected to the water tank (531) via a guide pipe; The water pump (533) is connected in series to the flow guide pipe and is electrically connected to an external control source.

5. The high-efficiency thermal management system for a dry sump engine with an independent oil tank according to claim 3, characterized in that: A plurality of stirring wheels (525) are provided, and the plurality of stirring wheels (525) are arranged along the axial direction of the connecting shaft (524).

6. A high-efficiency thermal management system for a dry sump engine with an independent oil tank according to claim 1, characterized in that: The transport component (4) comprises: An oil supply pipeline (41), one end of which is in communication with the connecting pipe (21), and the other end of which is in communication with the top of the oil tank (3); An oil delivery pipeline (42), one end of which is in communication with the engine cylinder block (1), and the other end of which is in communication with the bottom of the oil tank (3); The oil supply pipeline (41) and the oil delivery pipeline (42) are both connected in series with an oil pump (43), and the oil delivery pipeline (42) is provided with an organic filter device (44), which is used to remove impurities in the lubricating oil.

7. A high-efficiency thermal management system for a dry sump engine with an independent oil tank according to claim 4, characterized in that: The condenser tube (532) is serpentine-shaped.

8. The high-efficiency thermal management system for a dry sump engine with an independent oil tank according to claim 1, characterized in that: The dry oil sump (2) is made of aluminum alloy casting material.

9. A high-efficiency thermal management system for a dry sump engine with an independent oil tank according to claim 3, characterized in that: The impeller (521), the bevel gear one (522) and the bevel gear two (523) are all made of aluminum alloy casting material.

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