Engine lubricating system, engine and vehicle

Abstract

The utility model discloses a dry type oil pan system of an engine, and belongs to the technical field of vehicles. Comprising an oil pan which is provided with a plurality of oil storage areas. And the multiple first oil pumps are arranged corresponding to the multiple oil storage areas correspondingly, and the first oil pumps are used for pumping oil in the oil storage areas. In the embodiment of the invention, the first oil pump and the oil storage area are correspondingly arranged, so that efficient oil pumping of the oil pan can be achieved, and the beneficial effect that the situation that oil in the oil pan is not thoroughly pumped, and work of an engine is affected is avoided.

Description

Technical Field

[0001] The present application belongs to the field of vehicle technology, and specifically relates to an engine lubrication system, an engine, and a vehicle. Background Art

[0002] The lubrication system is an important component of the engine, responsible for many functions such as engine lubrication, cooling, cleaning, sealing, shock absorption and buffering.

[0003] In the related art, there are generally two types of oil pans in traditional lubrication systems: wet oil pans and dry oil pans. Dry oil pans are widely used due to their advantage of low height thickness.

[0004] However, the current dry oil pan still has a certain thickness in its height direction, which occupies the layout space of the entire vehicle. When the vehicle is running at a large inclination angle, the oil stored in the oil pan also tilts. The first oil pump has difficulty in completely sucking out the oil stored in the oil pan, which has an adverse effect on the normal operation of the engine. Utility Model Content

[0005] The purpose of the embodiments of the present application is to provide an engine lubrication system, an engine, and a vehicle, which can solve the problem in the prior art that the engine lubrication system occupies the entire vehicle space and does not completely pump out the oil.

[0006] In order to solve the above technical problems, this application is implemented as follows:

[0007] In a first aspect, an embodiment of the present application provides an oil pan, which is provided with multiple oil storage areas; multiple first oil pumps, which are respectively arranged corresponding to the multiple oil storage areas, and the first oil pumps are used to suck the oil from the oil storage areas.

[0008] In an embodiment of the present application, a plurality of first oil pumps are arranged above the oil pan, and the arrangement of the plurality of first oil pumps is used to extract the oil remaining in the oil storage area, so as to achieve efficient oil extraction and smooth oil return. Specifically, the oil pan is arranged below the first oil pump and the engine, and the oil pan may include an oil storage area and a non-oil storage area, wherein the oil storage area and the non-oil storage area are on horizontal planes with different heights. The height of the oil storage area is slightly lower than the height of the non-oil storage area, that is, the oil storage area is arranged at the lowest point of the oil pan. In actual application, the oil falls back to the oil pan by its own gravity. Since the height of the oil storage area is lower than the height of the non-oil storage area, the oil naturally flows to the oil storage area under the action of gravity, and the oil in the oil storage area is extracted by the first oil pump to prevent the oil from remaining in the oil pan.

[0009] Furthermore, the oil pan includes multiple oil storage areas, and the multiple oil storage areas are all arranged at the edge positions of the oil pan. During the operation of the vehicle, when a large-angle tilt state occurs, the oil in the oil pan will flow in the tilt direction. It can be understood that under the action of force, the oil will flow to the edge position of the oil pan, and the oil storage area arranged at the edge position of the oil pan can naturally retain the oil, and the first oil pump can also draw oil from the oil storage area, which has the beneficial effect of preventing the oil from flowing to the edge position, resulting in incomplete suction, and affecting the operation of the engine.

[0010] Optionally, in an embodiment of the present application, the engine lubrication system further includes an oil pot, which is disposed on the side of the oil pan, and the oil pot is connected to the oil pan, and the plurality of first oil pumps can draw the oil in the oil storage area into the oil pot.

[0011] Optionally, in an embodiment of the present application, the engine lubrication system further includes an oil return pipe, which is connected to the first oil pump and the oil pot, and the first oil pump can pump oil from the multiple oil storage areas into the oil pot along the oil return pipe.

[0012] Optionally, in an embodiment of the present application, the engine lubrication system further includes a second oil pump, the second oil pump is connected to the oil pot, and the second oil pump is used to pump the oil in the oil pot.

[0013] Optionally, in an embodiment of the present application, the engine lubrication system further includes an oil outlet pipe, which connects the second oil pump and the oil pot, and the second oil pump can pump the oil in the oil pot into the second oil pump along the oil outlet pipe.

[0014] Optionally, in an embodiment of the present application, the engine lubrication system further includes a driving shaft and a driven shaft, the second oil pump is fixedly connected to the driving shaft, and any one of the plurality of first oil pumps is connected to the driving shaft and the driven shaft.

[0015] Optionally, in an embodiment of the present application, the plurality of first oil pumps are all gear pumps, and the plurality of first oil pumps are interconnected.

[0016] Optionally, in an embodiment of the present application, the oil storage area includes a first oil storage area, a second oil storage area, a third oil storage area and a fourth oil storage area, and the oil flowing into the oil pan is gathered in at least one of the first oil storage area, the second oil storage area, the third oil storage area and the fourth oil storage area; along the first direction, the first oil storage area and the second oil storage area are correspondingly arranged; along the second direction, the third oil storage area and the fourth oil storage area are correspondingly arranged; wherein, the first direction is the length direction of the vehicle, and the second direction is the width direction of the vehicle.

[0017] Optionally, in an embodiment of the present application, the connecting line between the first oil storage area and the second oil storage area is a first connecting line, and the connecting line between the third oil storage area and the fourth oil storage area is a second connecting line; wherein, the first connecting line and the second connecting line are perpendicular, the first connecting line extends along the first direction, and the second connecting line extends along the second direction.

[0018] In a second aspect, in an embodiment of the present application, an engine is also provided, wherein the engine includes the engine lubrication system as described above.

[0019] In a third aspect, in an embodiment of the present application, a vehicle is also provided, comprising the engine as described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of an engine dry sump system in an embodiment of the present application;

[0021] Figure 2 This is a schematic structural diagram of a dry oil sump in an embodiment of the present application;

[0022] Figure 3 2 is a schematic structural diagram of the first oil pump and the second oil pump in an embodiment of the present application;

[0023] Figure 4 It is a structural schematic diagram of the oil pot in the embodiment of the present application.

[0024] Description of reference numerals:

[0025] 11. Oil pan; 111. Oil storage area; 1111. First oil storage area; 1112. Second oil storage area; 1113. Third oil storage area; 1114. Fourth oil storage area; 112. Non-oil storage area; 12. Oil pot; 121. Pot body; 122. Oil-gas separator; 123. Oil baffle; 21. Second oil pump; 22. First oil pump; 31. Oil outlet pipe; 32. Oil return pipe. DETAILED DESCRIPTION

[0026] The following will be combined with the accompanying drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0027] The terms "first," "second," and the like in the specification and claims of this application are used to distinguish similar objects, and are not used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of this application can be implemented in an order other than that illustrated or described herein, and that the objects distinguished by "first," "second," and the like are generally of the same type, and do not limit the number of objects; for example, the first object can be one or more. In addition, the term "and / or" in the specification and claims refers to at least one of the connected objects, and the character " / " generally indicates that the objects connected are in an "or" relationship.

[0028] The engine dry sump system and vehicle provided in the embodiments of the present application are described in detail below with reference to specific embodiments and their application scenarios in conjunction with the accompanying drawings.

[0029] See also Figures 1 to 4 An embodiment of the present application provides an oil pan 11, which is provided with multiple oil storage areas 111; multiple first oil pumps 22, which are respectively arranged corresponding to the multiple oil storage areas 111, and the first oil pumps 22 are used to suck the oil in the oil storage areas 111.

[0030] In this embodiment of the present application, multiple first oil pumps 22 are positioned above the oil pan 11. These pumps are used to pump oil remaining in the oil storage area 111, achieving efficient pumping and smooth oil return. Specifically, the oil pan 11 is positioned below the first oil pumps 22 and the engine. The oil pan 11 includes an oil storage area 111 and a non-oil storage area 112111, which are located at different levels. The height of the oil storage area 111 is slightly lower than that of the non-oil storage area 112111, meaning that the oil storage area 111 is positioned at the lowest point of the oil pan 11. In actual application, the oil falls back to the oil pan 11 due to its own gravity. Since the height of the oil storage area 111 is lower than the height of the non-oil storage area 112111, the oil naturally flows to the oil storage area 111 under the action of gravity. The oil in the oil storage area 111 is extracted by the first oil pump 22 to prevent the oil from remaining in the oil pan 11.

[0031] Furthermore, the oil pan 11 includes a plurality of oil storage areas 111, and the plurality of oil storage areas 111 are all arranged at the edge positions of the oil pan 11. During the operation of the vehicle, when a large-angle tilt state occurs, the oil in the oil pan 11 will flow in the tilt direction. It can be understood that under the action of force, the oil will flow to the edge positions of the oil pan 11. The oil storage areas 111 arranged at the edge positions of the oil pan 11 can naturally retain the oil, and the first oil pump 22 can also extract the oil from the oil storage areas 111, which has the beneficial effect of preventing the oil from flowing to the edge position, resulting in incomplete suction and affecting the operation of the engine.

[0032] Optionally, in an embodiment of the present application, the engine lubrication system also includes an oil pot 12, which is arranged on the side of the oil pan 11, and the oil pot 12 is connected to the oil pan 11. A plurality of first oil pumps 22 can draw the oil in the oil storage area 111 into the oil pot 12.

[0033] In the embodiment of the present application, the oil pot 12 is configured to store the oil extracted from the oil storage area 111 so that the oil stored in the oil pot 12 does not need to be stored in the oil pan 11, thereby reducing the volume of the oil pan 11. The reduction in the volume of the oil pan 11 can lower the height of the lubrication system in the height direction of the vehicle, thereby facilitating the layout of the lubrication system in the entire vehicle.

[0034] Furthermore, the oil pot 12 is arranged on the side of the oil pan 11, and the oil pot 12 and the oil pan 11 do not need to be stacked along the height direction of the vehicle, thereby lowering the height of the lubrication system in the height direction of the vehicle, which facilitates the beneficial effect of arranging the lubrication system in the entire vehicle.

[0035] Optionally, in an embodiment of the present application, the engine lubrication system further includes an oil return pipe 32 , which is connected to the first oil pump 22 and the oil pot 12 . The first oil pump 22 can pump oil from multiple oil storage areas 111 into the oil pot 12 along the oil return pipe 32 .

[0036] In an embodiment of the present application, the return oil pipe 32 is provided to connect the first oil pump 22 and the oil pot 12. The oil stored in the oil storage area 111 can enter the oil pot 12 from the oil storage area 111 along the return oil pipe 32, thereby achieving sufficient oil suction of the lubrication system.

[0037] In actual applications, the first oil pump 22 and the oil storage area 111 are set correspondingly. It can be understood that any oil storage area 111 is correspondingly provided with at least one return oil pipe 32. When multiple first oil pumps 22 are working, multiple oil storage areas 111 are sucked for oil through multiple return oil pipes 32, thereby achieving efficient oil suction for multiple oil storage areas 111.

[0038] Optionally, in the embodiment of the present application, the engine lubrication system further includes a second oil pump 21, which is connected to the oil pot 12 and is used to pump oil from the oil pot 12. Furthermore, the engine lubrication system further includes an oil outlet pipe 31, which connects the second oil pump 21 and the oil pot 12, and the second oil pump 21 can pump the oil in the oil pot 12 into the second oil pump 21 along the oil outlet pipe 31.

[0039] In the embodiment of the present application, the second oil pump 21 is configured to draw oil from the oil pot 12 and supply it to the engine for lubrication and other purposes. In actual use, an oil outlet pipe 31 connects the oil pot 12 and the second oil pump 21. When the second oil pump 21 is operating, the oil in the oil pot 12 enters the second oil pump 21 through the oil outlet pipe 31 and is then supplied to the engine by the second oil pump 21.

[0040] Optionally, in an embodiment of the present application, the engine lubrication system further includes a driving shaft and a driven shaft, the second oil pump 21 is fixedly connected to the driving shaft, and any one of the multiple first oil pumps 22 is connected to the driving shaft and the driven shaft.

[0041] Furthermore, the multiple first oil pumps 22 are all gear pumps, and the multiple first oil pumps 22 are interconnected. The interconnected setting can enable the oil to flow in the above-mentioned multiple first oil pumps 22. In actual applications, the multiple first oil pumps 22 that are interconnected can suck the oil in the oil storage area 111, and the sucked oil can also be pumped into the oil pot 12 through the multiple first oil pumps 22, which has the beneficial effect of improving oil suction.

[0042] In an embodiment of the present application, the engine lubrication system further includes a driving shaft, a driven shaft, a gear set on the driving shaft, and a gear set on the driven shaft. The second oil pump 21 may be a rotor pump, which is disposed on the driving shaft and is provided with a second oil pump 21 rotor oil chamber for mounting the inner and outer rotors of the rotor pump. The driving shaft is driven to rotate by the crankshaft in a chain-driven manner, and the inner and outer rotors of the rotor pump also begin to operate under the rotation of the driving shaft. The first oil pump 22 is provided with a first oil pump 22 gear oil chamber for connecting to the gear set on the driven shaft. The gear set on the driving shaft is driven to rotate by the crankshaft in a chain-driven manner, and the gear set on the driving shaft then meshes with the gear on the driven shaft, driving the gear set on the driven shaft to begin rotating, thereby achieving synchronous operation of multiple first oil pumps 22.

[0043] When the engine is working, the second oil pump 21 starts to work. The second oil pump 21 is designed with a rotor, which is fixed on the main shaft. The main shaft starts to rotate under the drive of the crankshaft and drives the rotor to rotate, so that negative pressure is generated in the second oil pump 21. The oil in the oil pot 12 enters the second oil pump 21 through the oil outlet pipe 31 of the oil pot 12 under the action of this negative pressure, and then the oil enters the engine. It can be divided into several oil circuits after passing through the main oil channel, oil filter and oil cooler, which are respectively used to continuously supply oil and lubrication to the friction pairs such as the crankshaft main bearing, connecting rod bearing, camshaft bearing, supercharger, high-pressure oil pump, and tensioner.

[0044] The oil in the engine cannot return to the engine by its own gravity due to the structure of the engine, but is deposited at the low point of the engine cylinder head. Under the action of the first oil pump 22, this part of the stored oil enters the first oil pump 22 through the left and right cylinder head oil passages and the return oil pipe 32.

[0045] Optionally, in an embodiment of the present application, the oil storage area 111 includes a first oil storage area 1111, a second oil storage area 1112, a third oil storage area 1113 and a fourth oil storage area 1114, and the oil flowing into the oil pan 11 is gathered in at least one of the first oil storage area 1111, the second oil storage area 1112, the third oil storage area 1113 and the fourth oil storage area 1114; along the first direction, the first oil storage area 1111 and the second oil storage area 1112 are correspondingly arranged; along the second direction, the third oil storage area 1113 and the fourth oil storage area 1114 are correspondingly arranged; wherein, the first direction is the length direction of the vehicle, and the second direction is the width direction of the vehicle.

[0046] In the embodiments of the present application, the vehicle may experience various operating conditions during use, including uphill, downhill, and left-right tilts at large angles. When the vehicle is in an uphill or downhill condition, the oil will flow toward the front and rear ends of the oil pan 11. The first oil storage area 1111 and the second oil storage area 1112 are positioned opposite each other along a first direction and at the edge of the oil pan 11. It is understood that under these operating conditions, the oil will flow into either the first oil storage area 1111 or the second oil storage area 1112. Similarly, when the vehicle is in a left-right tilt at a large angle, the oil will flow toward the left and right sides of the oil pan 11. The third oil storage area 1113 and the fourth oil storage area 1114 are positioned opposite each other along a second direction and at the edge of the oil pan 11. It is understood that under these operating conditions, the oil will flow into either the third oil storage area 1113 or the fourth oil storage area 1114. The arrangement of the above-mentioned first oil storage area 1111, second oil storage area 1112, third oil storage area 1113 and fourth oil storage area 1114 is beneficial for the oil to flow to the oil storage area 111 under various working conditions such as uphill, downhill and left and right large angle inclinations. Furthermore, it is also convenient for the first oil pump 22 to extract oil from the oil storage area 111 and thus achieve efficient oil extraction.

[0047] Optionally, in an embodiment of the present application, the connecting line between the first oil storage area 1111 and the second oil storage area 1112 is the first connecting line, and the connecting line between the third oil storage area 1113 and the fourth oil storage area 1114 is the second connecting line; wherein, the first connecting line and the second connecting line are perpendicular, the first connecting line extends along the first direction, and the second connecting line extends along the second direction.

[0048] In the embodiment of the present application, in the embodiment of the present application, the first connecting line and the second connecting line are perpendicular to each other, so that the first oil storage area 1111, the second oil storage area 1112, the third oil storage area 1113 and the fourth oil storage area 1114 are located at a right cross intersection position. It can be understood that the first oil storage area 1111, the second oil storage area 1112, the third oil storage area 1113 and the fourth oil storage area 1114 in the above position are further beneficial to the flow direction of oil in various working conditions such as uphill, downhill and left and right large angle tilts during the use of the vehicle.

[0049] Furthermore, the oil pot 12 may include a pot body 121 and an oil-gas separator 122 . The pot body 121 has a receiving cavity, and the oil-gas separator 122 is disposed in the receiving cavity.

[0050] The oil baffle 123 is disposed in the accommodating cavity and is disposed below the oil-gas separator 122 along the height direction of the vehicle. The oil baffle 123 is provided with a plurality of through holes along the height direction of the vehicle.

[0051] In the embodiment of the present application, multiple first oil pumps 22 draw oil from multiple oil storage areas 111 of the oil pan 11, which can easily cause cavitation and increase the gas content of the oil. Because the oil pot 12 has a large vertical space, an oil-gas separator 122 is provided within the pot body 121. Oil flows back to the oil pot 12 through the first oil pumps 22 and enters the oil-gas separator 122 (cyclone) within the oil pot 12. The separated gas is discharged through the gas outlet at the top of the oil pot 12. The oil then flows vertically through the gap in the oil-gas separator 122 (cyclone) toward the oil baffle 123 of the oil pot 12. The oil baffle 123 reduces oil oscillation and is designed with a large number of through-holes. The oil on the oil baffle 123 flows through these through-holes to the bottom of the oil pot 12, achieving the beneficial effect of oil and gas separation.

[0052] Furthermore, an oil level sensor can be provided on the oil pot 12, which can identify the oil level through electronic signals to replace the oil dipstick in the traditional engine, thereby having the beneficial effect of improving the recognition accuracy.

[0053] Furthermore, the kettle body 121 can be made cylindrical, if the boundaries allow, to further enhance its anti-tilt capability at all angles. The oil dipstick conduit and the fuel filler cap can be integrated into a design. By making a threaded hole above the fuel filler cap, the oil dipstick is fixed to the fuel filler cap via threads, which can save installation space.

[0054] In addition, the first oil pump 22 can be arranged outside the oil pan 11, and the connection surface between the first oil pump 22 and the oil pan 11 is sealed by a sealing ring, thereby reducing the length of the pipeline connection.

[0055] Optionally, in an embodiment of the present application, an engine is also provided, which includes the engine lubrication system as described above.

[0056] In an embodiment of the present application, the engine includes the engine lubrication system as described above, and further includes all the technical features and beneficial effects of the engine lubrication system, which will not be described in detail in this embodiment.

[0057] Optionally, in an embodiment of the present application, a vehicle is also provided, comprising the engine as described above.

[0058] In an embodiment of the present application, the vehicle includes the engine as described above, and further includes all the technical features and beneficial effects of the engine, which will not be described in detail in this embodiment.

[0059] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the statement "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be noted that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted, or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0060] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms without departing from the purpose of this application and the scope of protection of the claims, all of which are within the protection of this application.

Claims

1. An engine lubrication system, applied to a vehicle, characterized in that: include: An oil pan (11), wherein the oil pan (11) is provided with a plurality of oil storage areas (111); A plurality of first oil pumps (22) are respectively arranged corresponding to the plurality of oil storage areas (111), and the first oil pumps (22) are used to pump oil from the oil storage areas (111).

2. The engine lubrication system according to claim 1, characterized in that: The engine lubrication system further comprises an oil pot (12), which is arranged on the side of the oil pan (11), and the oil pot (12) and the oil pan (11) are in communication, and the plurality of first oil pumps (22) can pump the oil in the oil storage area (111) into the oil pot (12).

3. The engine lubrication system according to claim 2, characterized in that: The engine lubrication system further comprises an oil return pipe (32), wherein the oil return pipe (32) is connected to the first oil pump (22) and the oil pot (12), and the first oil pump (22) can pump oil from the plurality of oil storage areas (111) into the oil pot (12) along the oil return pipe (32).

4. The engine lubrication system according to claim 2, characterized in that: The engine lubrication system further comprises a second oil pump (21), the second oil pump (21) being in communication with the oil pot (12), and the second oil pump (21) being used for pumping oil in the oil pot (12).

5. The engine lubrication system according to claim 4, characterized in that: The engine lubrication system further comprises an oil outlet pipe (31), wherein the oil outlet pipe (31) is connected to the second oil pump (21) and the oil pot (12), and the second oil pump (21) can pump the oil in the oil pot (12) into the second oil pump (21) along the oil outlet pipe (31).

6. The engine lubrication system according to claim 5, characterized in that: The engine lubrication system further comprises a driving shaft and a driven shaft, the second oil pump (21) is fixedly connected to the driving shaft, and any one of the plurality of first oil pumps (22) is connected to the driving shaft and the driven shaft.

7. The engine lubrication system according to claim 6, characterized in that: The plurality of first oil pumps (22) are all gear pumps, and the plurality of first oil pumps (22) are interconnected.

8. The engine lubrication system according to claim 7, characterized in that: The oil storage area (111) comprises a first oil storage area (1111), a second oil storage area (1112), a third oil storage area (1113) and a fourth oil storage area (1114); the oil flowing into the oil pan (11) is collected in at least one of the first oil storage area (1111), the second oil storage area (1112), the third oil storage area (1113) and the fourth oil storage area (1114); Along the first direction, the first oil storage area (1111) and the second oil storage area (1112) are correspondingly arranged; Along the second direction, the third oil storage area (1113) and the fourth oil storage area (1114) are correspondingly arranged; The first direction is the length direction of the vehicle, and the second direction is the width direction of the vehicle.

9. The engine lubrication system according to claim 8, characterized in that: The connection line between the first oil storage area (1111) and the second oil storage area (1112) is a first connection line, and the connection line between the third oil storage area (1113) and the fourth oil storage area (1114) is a second connection line; The first connection line is perpendicular to the second connection line, the first connection line extends along the first direction, and the second connection line extends along the second direction.

10. An engine, characterized in that: The engine comprises the engine lubrication system according to any one of claims 1-9.

11. A vehicle, characterized in that: The vehicle includes the engine of claim 10 .

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