Oil pan structure, engine cooling and lubricating system and vehicle

Abstract

The invention relates to the technical field of vehicles, in particular to an oil pan structure, an engine cooling and lubricating system and a vehicle, the oil pan structure comprises an oil pan body, and the oil pan body is provided with an oil storage cavity; the partition plate is arranged in the oil pan body, the partition plate is connected with the inner wall of the oil pan body, and the partition plate divides the oil storage cavity into an upper oil storage cavity and a lower oil storage cavity; the communication control valve is arranged on the partition plate and is communicated with the upper oil storage cavity and the lower oil storage cavity; the communication control valve is configured to be opened when the temperature of the lubricating oil in the upper oil storage cavity is not smaller than an opening temperature value, and to be closed when the temperature of the lubricating oil in the upper oil storage cavity is smaller than the opening temperature value. Moisture in lubricating oil in the oil pan can be removed, so that the use performance of engine oil is guaranteed, and oxidation and deterioration of the engine oil are inhibited.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicles, and in particular to an oil pan structure, an engine cooling and lubricating system, and a vehicle. Background Art

[0002] When operating a conventional engine, especially a turbocharged direct injection engine, the surfaces of various relatively moving components, such as the cylinder and piston rings, main bearings, connecting rod bearings, turbocharger bearings, and camshaft bearings, operate under extremely high loads and sliding speeds, inevitably leading to friction and damage. To ensure long-term reliable engine operation, the engine oil must have excellent properties.

[0003] During engine operation, the high-pressure combustible mixture in the combustion chamber can partially leak into the crankcase through the gap between the piston assembly and the cylinder, causing blowby. Especially in hydrogen engines, the primary combustion product is water, and blowby consists of unburned hydrogen, water vapor, and exhaust gases. Water vapor condenses and flows back into the lubrication system's oil pan. Excess water emulsifies the engine oil, reducing its performance and accelerating its oxidation and deterioration.

[0004] Therefore, an oil pan structure, an engine cooling and lubrication system, and a vehicle are needed to solve the above problems. Summary of the Invention

[0005] The object of the present invention is to provide an oil pan structure, an engine cooling and lubricating system and a vehicle, which can remove moisture from the lubricating oil in the oil pan, thereby ensuring the performance of the engine oil and inhibiting oxidation and deterioration of the engine oil.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] Oil pan structure, including:

[0008] An oil sump body, the oil sump body having an oil storage cavity;

[0009] a partition plate, the partition plate being disposed in the oil pan body and connected to an inner wall of the oil pan body, the partition plate dividing the oil storage cavity into an upper oil storage cavity and a lower oil storage cavity;

[0010] a communication control valve, the communication control valve being disposed on the partition plate and being in communication with the upper oil storage chamber and the lower oil storage chamber;

[0011] The communication control valve is configured to open when the lubricating oil temperature in the upper oil storage chamber is not less than the opening temperature value, and to close when the lubricating oil temperature in the upper oil storage chamber is less than the opening temperature value.

[0012] In some embodiments, the partition is made of a heat-insulating material, or a heat-insulating layer is provided on the surface of the partition.

[0013] In some embodiments, the communication control valve is a temperature-sensitive control valve, and the temperature-sensing portion of the temperature-sensitive control valve is located in the upper oil storage chamber.

[0014] In some embodiments, a mounting hole is opened on the partition, the connecting control valve is arranged in the mounting hole, and a seal is provided between the connecting control valve and the partition, and the seal is used to seal the gap between the mounting hole and the connecting control valve.

[0015] The engine cooling and lubrication system includes a cooling circulation system, a lubricating oil circulation system and the oil pan structure as described above. The lubricating oil circulation system is connected to the upper oil storage chamber of the oil pan body and is used to drive the circulation of the lubricating oil in the oil storage chamber. The cooling circulation system is used to perform heat exchange on the lubricating oil in the lubricating oil circulation system.

[0016] In some embodiments, the lubricating oil circulation system includes an oil pump and a cooling filter module that are interconnected in sequence. The oil pump is connected to the upper oil storage chamber of the oil pan body through a filter. The cooling filter module is connected to the upper oil storage chamber through the parts to be lubricated, and the cooling circulation system is connected to the cooling filter module.

[0017] In some embodiments, the cooling and filtering module includes a filter and a cooler that are interconnected. The cooler is in communication with the cooling circulation system, and the cooling circulation system can perform heat exchange with the lubricating oil flowing through the cooler.

[0018] In some embodiments, the filter includes a water absorption filter element and a filtering filter element.

[0019] In some embodiments, the cooling circulation system includes a water pump and a temperature control valve that are connected to each other, the water pump is connected to the water outlet of the cooler, and the temperature control valve is connected to the water inlet of the cooler;

[0020] The temperature control valve is configured to open when the temperature of the lubricating oil increases and the temperature of the cooling water is higher than the temperature of the lubricating oil; otherwise, the temperature control valve is closed.

[0021] A vehicle comprises a chassis and the engine cooling and lubrication system as described above, wherein the engine cooling and lubrication system is arranged on the chassis.

[0022] Beneficial effects of the present invention:

[0023] The present invention provides an oil pan structure, in which a partition is provided in the oil storage chamber of the oil pan body, the partition divides the oil storage chamber into an upper oil storage chamber and a lower oil storage chamber, and a connecting control valve is provided on the partition, and the connecting control valve is connected to the upper oil storage chamber and the lower oil storage chamber. When the temperature of the lubricating oil in the upper oil storage chamber is not less than the opening temperature value, the connecting control valve opens, and when the temperature of the lubricating oil in the upper oil storage chamber is less than the opening temperature value, the connecting control valve closes. Since the accumulation of condensed water in the crankcase is most serious when the engine is operating at low temperatures. At this time, the connecting control valve is in a closed state, and only the lubricating oil in the upper oil storage chamber participates in the lubrication cycle, achieving rapid warm-up in a low-temperature environment. When used in an engine, it helps to quickly increase the temperature of the lubricating oil and accelerate the volatilization of water in the lubricating oil, thereby removing the water in the lubricating oil in the oil pan, avoiding the problem of low-temperature condensation and emulsification of the engine oil, while ensuring the performance of the engine oil and inhibiting the oxidation and deterioration of the engine oil. When the temperature of the lubricating oil rises to the opening temperature value, the connecting control valve opens, and all the lubricating oil participates in the lubrication cycle. The amount of lubricating oil participating in the cooling lubrication cycle increases, ensuring the reliability of the system.

[0024] The engine cooling and lubrication system provided by the present invention includes a cooling circulation system, a lubricating oil circulation system and the oil pan structure as described above, which can remove moisture from the lubricating oil in the oil pan, thereby ensuring the performance of the engine oil and inhibiting oxidation and deterioration of the engine oil.

[0025] The present invention provides a vehicle comprising a chassis and the engine cooling and lubrication system as described above, which can remove moisture from the lubricating oil in the oil pan, thereby ensuring the performance of the engine oil and inhibiting oxidation and deterioration of the engine oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in describing the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without any creative work.

[0027] Figure 1 It is a cross-sectional view of an oil pan structure of the present invention;

[0028] Figure 2 It is a schematic diagram of an engine cooling and lubrication system of the present invention.

[0029] In the picture:

[0030] 1. Oil pan body; 11. Upper oil storage chamber; 12. Lower oil storage chamber; 2. Partition; 3. Connecting control valve; 4. Lubricating oil circulation system; 41. Filter; 42. Oil pump; 43. Filter; 44. Cooler; 45. Pressure limiting valve; 5. Cooling circulation system; 51. Water pump; 52. Temperature control valve; 100. Cylinder main oil channel; 110. Parts to be lubricated. DETAILED DESCRIPTION

[0031] Before any embodiments of the present application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the foregoing drawings.

[0032] In this application, the terms "comprises," "includes," "has," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0033] In this application, the terms "connect," "combine," "couple," and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without an intermediary, and an indirect connection refers to two parts or components being connected to at least one intermediary, with the two parts or components being connected via the intermediary. Furthermore, "connect" and "couple" are not limited to physical or mechanical connections or couplings and may include electrical connections or couplings.

[0034] In this application, it will be understood by those skilled in the art that the function performed by an assembly can be performed by one assembly, multiple assemblies, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one assembly, or a combination of multiple parts.

[0035] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to the other element "upper" or "lower", but also be indirectly connected to the other element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, below can include directly below, lower left, lower right, lower front and lower back, etc.

[0036] During the operation of the engine, lubricating oil is required to lubricate key components. In order to remove the water in the lubricating oil in the oil pan, thereby ensuring the performance of the engine oil, inhibiting the oxidation and deterioration of the engine oil, and extending the service life of the lubricating oil, such as Figure 1 As shown, the present invention provides an oil pan structure. The oil pan structure includes an oil pan body 1, a partition plate 2 and a communication control valve 3.

[0037] The oil pan body 1 has an oil reservoir. A partition 2 is disposed within the oil pan body 1 and connected to the inner wall of the body 1, dividing the oil reservoir into an upper oil reservoir 11 and a lower oil reservoir 12. A communication control valve 3 is disposed on the partition 2 and communicates with the upper and lower oil reservoirs 11, 12. The communication control valve 3 is configured to open when the lubricating oil temperature in the upper oil reservoir 11 is not less than the opening temperature, and to close when the lubricating oil temperature in the upper oil reservoir 11 is less than the opening temperature.

[0038] When the temperature of the lubricating oil in the upper oil storage chamber 11 is not less than the opening temperature value, the connecting control valve 3 opens; when the temperature of the lubricating oil in the upper oil storage chamber 11 is less than the opening temperature value, the connecting control valve 3 closes. Since the accumulation of condensed water in the crankcase is most serious when the engine is operating at low temperatures. At this time, the connecting control valve 3 is in a closed state, and only the lubricating oil in the upper oil storage chamber 11 participates in the lubrication cycle, achieving rapid warm-up in a low-temperature environment. When applied to the engine, it helps to quickly increase the temperature of the lubricating oil and accelerate the volatilization of water in the lubricating oil, thereby removing the water in the lubricating oil in the oil pan, avoiding the problem of low-temperature condensation emulsification of the engine oil, while ensuring the performance of the engine oil and inhibiting the oxidation and deterioration of the engine oil. When the temperature of the lubricating oil rises to the opening temperature value, the connecting control valve 3 opens, and all the lubricating oil participates in the lubrication cycle. The amount of lubricating oil participating in the cooling lubrication cycle increases, ensuring the reliability of the system.

[0039] In some embodiments, partition 2 is made of a heat-insulating material, or a heat-insulating layer is provided on its surface. The heat-insulating properties of partition 2 prevent heat exchange between the lubricating oil in upper reservoir 11 and the lubricating oil in lower reservoir 12 through partition 2, thereby reducing the heat exchange area. When the lubricating oil temperature needs to be quickly raised to accelerate the volatilization of water in the lubricating oil, the transfer of heat from the lubricating oil in upper reservoir 11 to lower reservoir 12 is reduced, thereby ensuring a rapid increase in the temperature of the lubricating oil in upper reservoir 11 and rapid evaporation and removal of water.

[0040] In some embodiments, the communication control valve 3 is a temperature-sensitive control valve, the temperature-sensing portion of which is located in the upper oil reservoir 11. In this embodiment, the communication control valve 3 is a wax-type temperature-sensitive control valve, with temperature-sensitive wax disposed in the circulating upper oil reservoir 11. The wax-type temperature-sensitive control valve is set to initially open at 90°C and fully open at 105°C. When the lubrication system oil temperature is relatively low, only the lubricating oil in the upper oil reservoir 11 participates in the circulation, allowing the lubricating oil temperature to rise rapidly. When the lubrication system oil temperature rises to the opening temperature of the wax-type temperature-sensitive control valve, all the lubricating oil participates in the lubrication circulation, ensuring the reliability of the lubrication system.

[0041] In some embodiments, a mounting hole is defined in the partition plate 2, into which the communication control valve 3 is disposed. A seal is provided between the communication control valve 3 and the partition plate 2 to seal the gap between the mounting hole and the communication control valve 3. The mounting hole facilitates positioning of the communication control valve 3, allowing for quick installation. The seal prevents the lubricating oil in the upper oil reservoir 11 and the lubricating oil in the lower oil reservoir 12 from flowing through the gap between the mounting hole and the communication control valve 3.

[0042] like Figure 2 As shown, this embodiment also provides an engine cooling and lubrication system. The engine cooling and lubrication system includes a cooling circulation system 5, a lubricating oil circulation system 4, and the above-mentioned oil pan structure. The lubricating oil circulation system 4 is connected to the upper oil storage chamber 11 of the oil pan body 1. The lubricating oil circulation system 4 is used to drive the circulation of the lubricating oil in the oil storage chamber, and the cooling circulation system 5 is used to perform heat exchange on the lubricating oil in the lubricating oil circulation system 4. When the temperature of the lubricating oil needs to be increased rapidly, and the temperature of the cooling water in the cooling circulation system 5 is higher than that of the lubricating oil, the cooling water in the cooling circulation system 5 is used to perform heat exchange with the lubricating oil in the lubricating oil circulation system 4 to quickly increase the temperature of the lubricating oil. When the temperature of the lubricating oil circulation system 4 is high, the lubricating oil is cooled by the cooling water at a lower temperature to ensure that the lubricating oil circulation system 4 can operate normally and stably. In this way, the moisture in the lubricating oil in the oil pan can be removed, thereby ensuring the performance of the engine oil and inhibiting the oxidation and deterioration of the engine oil.

[0043] In some embodiments, the lubricating oil circulation system 4 includes an oil pump 42 and a cooling filter module, which are interconnected in sequence. The oil pump 42 communicates with the upper oil reservoir 11 of the oil pan 1 via a filter 41. The cooling filter module communicates with the upper oil reservoir 11 via the lubricated components 110. The cooling circulation system 5 is also connected to the cooling filter module. Lubricating oil, driven by the oil pump 42, passes through the filter 41 and enters the cooling filter module. It then flows through the main oil gallery 100 of the cylinder block to lubricate the lubricated components 110, before returning to the upper oil reservoir 11 of the oil pan 1, completing a lubrication cycle. During this process, the lubricating oil can be heated or cooled as needed using cooling water in the cooling circulation system 5.

[0044] In some embodiments, the cooling and filtration module includes a filter 43 and a cooler 44, which are interconnected. Cooler 44 is connected to a cooling circulation system 5, which is capable of heat exchange with the lubricating oil flowing through cooler 44. When the cooling circulation system 5 is connected to the cooler 44, the cooling water in the cooling circulation system 5 can exchange heat with the lubricating oil flowing through the cooler 44, thereby raising or lowering the temperature of the lubricating oil as needed. By providing filter 43, the lubricating oil can be filtered to ensure its cleanliness.

[0045] In some embodiments, the filter 43 includes a water-absorbing filter element and a filter element. The water-absorbing filter element absorbs water from the lubricating oil, further reducing the risk of lubricating oil emulsification caused by excessive water content. The filter element further improves the cleanliness of the lubricating oil.

[0046] In some embodiments, a pressure limiting valve 45 is provided between the filter 43 and the oil pan. When the lubricating oil pressure passing through the filter 43 exceeds the set value of the pressure limiting valve 45, the lubricating oil flows directly back to the oil pan through the filter 43. This arrangement ensures the stability of the lubricating oil circulation system 4.

[0047] In some embodiments, the cooling circulation system 5 includes a water pump 51 and a temperature control valve 52, which are interconnected. The water pump 51 is connected to the water outlet of the cooler 44, and the temperature control valve 52 is connected to the water inlet of the cooler 44. The temperature control valve 52 is configured to open when the lubricating oil temperature is rising and the cooling water temperature is higher than the lubricating oil temperature; otherwise, the temperature control valve 52 is closed. Specifically, the vehicle controller constantly monitors the lubricating oil and cooling water temperature parameters. When the system requires a rapid lubricating oil temperature rise, if the cooling water temperature is higher than the lubricating oil temperature, the temperature control valve 52 opens, exchanging heat with the lubricating oil in the cooler 44. This allows the cooling water to heat the lubricating oil, causing the lubricating oil temperature to rise rapidly. If the cooling water temperature is lower than the lubricating oil temperature, the temperature control valve 52 closes, preventing heat exchange between the lubricating oil and the cooling water, thus preventing heat loss in the lubricating oil and achieving a rapid lubricating oil temperature rise. When the oil temperature rises to approximately 100°C, the evaporation rate of condensed water is accelerated, thereby reducing the risk of lubricating oil emulsification.

[0048] This embodiment also provides a vehicle comprising a chassis and the above-described engine cooling and lubrication system, the engine cooling and lubrication system being disposed on the chassis. The engine cooling and lubrication system is capable of removing moisture from lubricating oil in an oil pan, thereby ensuring the performance of the engine oil and preventing oxidation and deterioration of the engine oil.

[0049] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. Oil pan structure, characterized in that: include: An oil sump body (1), wherein the oil sump body (1) has an oil storage cavity; a partition plate (2), the partition plate (2) being arranged in the oil pan body (1), the partition plate (2) being connected to the inner wall of the oil pan body (1), the partition plate (2) dividing the oil storage cavity into an upper oil storage cavity (11) and a lower oil storage cavity (12); a communication control valve (3), the communication control valve (3) being arranged on the partition plate (2) and being in communication with the upper oil storage chamber (11) and the lower oil storage chamber (12); The communication control valve (3) is configured such that: when the temperature of the lubricating oil in the upper oil storage chamber (11) is not less than the opening temperature value, the communication control valve (3) opens; and when the temperature of the lubricating oil in the upper oil storage chamber (11) is less than the opening temperature value, the communication control valve (3) closes.

2. The oil pan structure according to claim 1, characterized in that: The partition (2) is made of a heat-insulating material, or a heat-insulating layer is provided on the surface of the partition (2).

3. The oil pan structure according to claim 1, characterized in that: The communication control valve (3) is a temperature-sensitive control valve, and the temperature-sensing part of the temperature-sensitive control valve is located in the upper oil storage chamber (11).

4. The oil pan structure according to claim 1, characterized in that: The partition plate (2) is provided with a mounting hole, the connecting control valve (3) is arranged in the mounting hole, and a sealing member is arranged between the connecting control valve (3) and the partition plate (2), the sealing member being used to seal the gap between the mounting hole and the connecting control valve (3).

5. Engine cooling and lubrication system, characterized in that: It comprises a cooling circulation system (5), a lubricating oil circulation system (4) and an oil pan structure as claimed in any one of claims 1 to 4, wherein the lubricating oil circulation system (4) is connected to an upper oil storage chamber (11) of an oil pan body (1) and is used to drive the circulation of the lubricating oil in the oil storage chamber, and the cooling circulation system (5) is used to perform heat exchange on the lubricating oil in the lubricating oil circulation system (4).

6. The engine cooling and lubrication system according to claim 5, characterized in that: The lubricating oil circulation system (4) comprises an oil pump (42) and a cooling filter module which are connected to each other in sequence; the oil pump (42) is connected to the upper oil storage chamber (11) of the oil pan body (1) via a filter (41); the cooling filter module is connected to the upper oil storage chamber (11) via a component to be lubricated (110); and the cooling circulation system (5) is connected to the cooling filter module.

7. The engine cooling and lubrication system according to claim 6, characterized in that: The cooling and filtering module comprises a filter (43) and a cooler (44) which are connected to each other. The cooler (44) is connected to the cooling circulation system (5). The cooling circulation system (5) can perform heat exchange with the lubricating oil flowing through the cooler (44).

8. The engine cooling and lubrication system according to claim 7, characterized in that: The filter (43) comprises a water absorption filter element and a filtering filter element.

9. The engine cooling and lubrication system according to claim 7, characterized in that: The cooling circulation system (5) comprises a water pump (51) and a temperature control valve (52) which are connected to each other, the water pump (51) is connected to the water outlet of the cooler (44), and the temperature control valve (52) is connected to the water inlet of the cooler (44); The temperature control valve (52) is configured such that: in the lubricating oil temperature rising stage, when the temperature of the cooling water is higher than the temperature of the lubricating oil, the temperature control valve (52) is opened; otherwise, the temperature control valve (52) is closed.

10. A vehicle, characterized in that It comprises a chassis and an engine cooling and lubrication system as claimed in any one of claims 5 to 9, wherein the engine cooling and lubrication system is arranged on the chassis.

Images