Oil supply device and engine

Abstract

The present application is suitable for the technical field of engines. Provided are an oil supply device and an engine. The oil supply device comprises an oil pan and a vortex generating part, the oil pan being provided with an accommodation cavity and an oil discharge passage, the accommodation cavity being used for accommodating engine oil, and the oil discharge passage being communicated with the accommodation cavity. An oil inlet of the oil discharge passage is positioned at the bottom of the accommodation cavity, such that the engine oil can be discharged to the external environment through the oil discharge passage. The vortex generating part comprises a stirring component, and the stirring component is rotatably mounted at the bottom of the accommodation cavity and corresponds to the position of the oil inlet, so as to be used for stirring the engine oil, enabling the engine oil to form a vortex at the position corresponding to the oil inlet. Before discharging waste engine oil, the oil supply device provided by the present application can use the stirring component to stir the engine oil in the oil pan so as to resuspend impurities deposited at the bottom of the accommodation cavity into the engine oil, so that the impurities at the bottom of the accommodation cavity can be discharged to the external environment together with the waste engine oil through the oil discharge passage.

Description

Fuel supply system and engine

[0001] This application claims priority to Chinese Patent Application No. 202421241480.6, filed on May 31, 2024, entitled "Fuel Supply Device and Engine", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application belongs to the field of engine technology, and more specifically, relates to a fuel supply device and an engine. Background Technology

[0003] The engine lubrication system is a crucial component of the engine. Its main function is to reduce friction and wear between the engine's moving parts, while also providing cooling, cleaning, sealing, and rust prevention. It has a vital impact on the engine's reliability and durability. The engine lubrication system mainly includes the oil pan, oil pump, oil filter, oil cooler, main oil passage, branch oil passage, pressure relief valve, oil pressure sensor, and dipstick. The engine oil in the oil pan needs to be changed after a period of use, and most existing oil pans drain waste oil through a drain plug at the bottom.

[0004] However, when draining the waste oil from the oil pan through the drain port, the drainage speed is slow and it is not possible to fully remove the impurities deposited at the bottom of the oil pan. Technical issues

[0005] The purpose of this application is to provide an oil supply device and an engine, which aims to solve the technical problem in the prior art that the oil pan cannot fully remove the impurities deposited at the bottom of the oil pan when discharging waste oil, and the discharge speed is slow. Technical solutions

[0006] To achieve the above objectives, according to one aspect of this application, an oil supply device is provided, comprising: an oil pan and a vortex generator, wherein the oil pan is provided with a receiving cavity and an oil drain channel, the receiving cavity being used to receive engine oil, the oil drain channel communicating with the receiving cavity, the oil inlet of the oil drain channel being located at the bottom of the receiving cavity, and the engine oil being able to be discharged into the external environment through the oil drain channel; the vortex generator includes a stirring component, the stirring component being rotatably mounted at the bottom of the receiving cavity and corresponding to the position of the oil inlet, for stirring the engine oil so that the engine oil can generate a vortex at the position corresponding to the oil inlet.

[0007] Optionally, the oil supply device also includes a drive unit, which is disposed on the oil pan and drivenly connected to the stirring assembly to drive the stirring assembly, which can stir the oil under the drive of the drive unit.

[0008] Optionally, the drive unit is located on the bottom of the oil pan on the side away from the receiving cavity and corresponds to the position of the stirring assembly. The oil supply device also includes a magnetic coupling unit, which includes a first magnetic coupling member and a second magnetic coupling member. The first magnetic coupling member is disposed on the stirring assembly, and the second magnetic coupling member is disposed on the output end of the drive unit. The positions of the first magnetic coupling member and the second magnetic coupling member correspond to the positions of the second magnetic coupling member. The output end of the drive unit can drive the stirring assembly through the coupling of the first magnetic coupling member and the second magnetic coupling member.

[0009] Optionally, the vortex generator also includes a support assembly, which includes a support base disposed at the bottom of the receiving cavity, and the stirring assembly is rotatably mounted on the support base.

[0010] Optionally, the support assembly further includes a first bearing. A first mounting hole is provided on the side of the support base near the receiving cavity. A support shaft is provided on the side of the stirring assembly near the support base. The support shaft is rotatably mounted in the first mounting hole. The first bearing is disposed between the first mounting hole and the support shaft. The outer ring of the first bearing abuts against the inner wall of the first mounting hole, and the inner ring of the first bearing abuts against the outer wall of the support shaft.

[0011] Optionally, a second mounting hole is provided at the bottom of the receiving cavity, the oil inlet of the oil drain channel is located on the inner side wall of the second mounting hole, and the support is movably installed in the second mounting hole. The support has a sealing state that isolates the oil inlet from the receiving cavity and an oil draining state that connects the oil inlet with the receiving cavity.

[0012] Optionally, the support is provided with a first seal, which can isolate the oil inlet and the receiving cavity when the support is in a sealed state.

[0013] Optionally, a third mounting hole is provided at the bottom of the oil pan, which communicates with the second mounting hole. The drive unit is movably installed in the third mounting hole, and the support base is connected to the drive unit. The support base can switch between a sealing state and an oil draining state as the drive unit moves.

[0014] Optionally, the drive unit includes a housing assembly and a drive assembly. The housing assembly is movably mounted in a third mounting hole. A support base is connected to the housing assembly, and a mounting cavity is formed between the housing assembly and the support base. The drive assembly is mounted in the mounting cavity.

[0015] According to another aspect of this application, an engine is provided, the engine including a fuel supply device, the fuel supply device being the one described above. Beneficial effects

[0016] The beneficial effects of the oil supply device provided in this application are as follows: Compared with the prior art, the oil supply device provided in this application, by rotatably installing the stirring component at the bottom of the receiving cavity, allows the oil supply device to stir the oil in the oil pan before discharging the waste oil, causing impurities deposited at the bottom of the receiving cavity to be resuspended in the oil. This allows the impurities at the bottom of the receiving cavity to be discharged into the external environment along with the waste oil through the oil drain channel. At the same time, when the stirring component of this application stirs the oil, it also causes the oil to generate a vortex at the position corresponding to the stirring component. Since the position of the oil inlet of the oil drain channel corresponds to the position of the stirring component, during the process of discharging the waste oil into the external environment through the oil drain channel, the air in the oil drain channel can quickly enter the receiving cavity through the center of the vortex and generate a certain negative pressure at the oil inlet of the oil drain channel, allowing the waste oil in the receiving cavity to be quickly discharged into the external environment. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 is a schematic diagram of the oil supply device provided in an embodiment of this application;

[0019] Figure 2 is a schematic diagram of the oil supply device from another perspective provided in an embodiment of this application;

[0020] Figure 3 is a cross-sectional schematic diagram of the oil supply device provided in an embodiment of this application;

[0021] Figure 4 is a magnified view of a portion of region A in Figure 3;

[0022] The details of the reference numerals used in the above figures are as follows:

[0023] 10. Oil pan; 11. Receiving cavity; 12. Oil drain channel;

[0024] 20. Vortex generator; 21. Stirring assembly; 22. Support assembly; 221. Support base; 2211. First seal; 222. First bearing;

[0025] 30. Drive unit; 31. Housing assembly; 32. Drive assembly;

[0026] 40. Magnetic coupling part; 41. First magnetic coupling element; 42. Second magnetic coupling element. Embodiments of the present invention

[0027] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0028] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly or indirectly on that other element. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to that other element. Unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0030] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0031] As described in the background section, the engine lubrication system is a crucial component of the engine. Its primary function is to reduce friction and wear between the engine's moving parts, while also providing cooling, cleaning, sealing, and rust prevention. It has a vital impact on the engine's reliability and durability. The engine lubrication system mainly includes the oil pan, oil pump, oil filter, oil cooler, main oil passage, branch oil passage, pressure relief valve, oil pressure sensor, and dipstick. The engine oil in the oil pan needs to be changed after a period of use, and most existing oil pans drain waste oil through a drain plug at the bottom. However, draining waste oil from the oil pan through the drain plug is not only slow but also fails to adequately remove impurities deposited at the bottom of the oil pan.

[0032] Referring to Figures 1 to 4, in order to solve the above problems, according to one aspect of this application, an embodiment of this application provides an oil supply device including: an oil pan 10 and a vortex generator 20, wherein the oil pan 10 is provided with a receiving cavity 11 and an oil drain channel 12, the receiving cavity 11 is used to receive engine oil, the oil drain channel 12 is connected to the receiving cavity 11, the oil inlet of the oil drain channel 12 is located at the bottom of the receiving cavity 11, and the engine oil can be discharged to the external environment through the oil drain channel 12; the vortex generator 20 includes a stirring assembly 21, the stirring assembly 21 is rotatably installed at the bottom of the receiving cavity 11 and corresponds to the position of the oil inlet, and is used to stir the engine oil so that the engine oil can generate a vortex at the position corresponding to the oil inlet. The oil supply device provided in this embodiment rotatably mounts the stirring assembly 21 at the bottom of the receiving cavity 11. This allows the oil supply device to stir the oil in the oil pan 10 before discharging the waste oil, causing impurities deposited at the bottom of the receiving cavity 11 to resuspend in the oil. This allows the impurities at the bottom of the receiving cavity 11 to be discharged into the external environment along with the waste oil through the oil drain channel 12. At the same time, when stirring the oil, the stirring assembly 21 also creates a vortex in the oil at the position corresponding to the stirring assembly 21. Since the position of the oil inlet of the oil drain channel 12 corresponds to the position of the stirring assembly 21, during the process of discharging the waste oil into the external environment through the oil drain channel 12, the air in the oil drain channel can quickly enter the receiving cavity 11 through the center of the vortex and generate a certain negative pressure at the oil inlet of the oil drain channel 12, allowing the waste oil in the receiving cavity 11 to be quickly discharged into the external environment.

[0033] In an optional embodiment, the center of the vortex generated by the stirring component 21 provided in this embodiment corresponds to the position of the stirring component 21.

[0034] In an optional embodiment, the bottom wall of the receiving cavity 11 provided in this embodiment is concave from the inner side wall of the receiving cavity 11 toward the stirring assembly 21 and away from the receiving cavity 11. By setting the bottom wall of the receiving cavity 11 to be concave from the inner side wall of the receiving cavity 11 toward the stirring assembly 21 and away from the receiving cavity 11, it is beneficial for the oil in the receiving cavity 11 to generate a vortex centered on the stirring assembly 21.

[0035] Referring to Figure 2, in one specific embodiment, the oil supply device further includes a drive unit 30. The drive unit 30 is disposed on the oil pan 10 and is drivenly connected to the stirring assembly 21, thereby driving the stirring assembly 21 to stir the engine oil under the drive of the drive unit 30. By providing the drive unit 30 on the oil pan 10 and drivingly connecting the drive unit 30 to the stirring assembly 21, the stirring assembly 21 provided in this embodiment can stir the engine oil in the receiving cavity 11 under the drive of the drive unit 30.

[0036] Referring to Figures 2, 3, and 4, in one specific embodiment, the drive unit 30 is located on the bottom of the oil pan 10, away from the receiving cavity 11, and corresponds to the position of the stirring assembly 21. The oil supply device also includes a magnetic coupling unit 40, which includes a first magnetic coupling member 41 and a second magnetic coupling member 42. The first magnetic coupling member 41 is disposed on the stirring assembly 21, and the second magnetic coupling member 42 is disposed on the output end of the drive unit 30. The positions of the first magnetic coupling member 41 and the second magnetic coupling member 42 correspond to the positions of the second magnetic coupling member 42. The output end of the drive unit 30 can drive the stirring assembly 21 through the coupling of the first magnetic coupling member 41 and the second magnetic coupling member 42. By providing a first magnetic coupling member 41 on the stirring assembly 21 and a second magnetic coupling member 42 on the output end of the drive unit 30, the drive unit 30 can drive the stirring assembly 21 through the coupling of the second magnetic coupling member 42 and the first magnetic coupling member 41. Furthermore, since the first magnetic coupling member 41 and the second magnetic coupling member 42 are coupled through a magnetic field, there is no need for a physical connection between the output end of the drive unit 30 and the stirring assembly 21. This allows the drive unit 30 to drive the stirring assembly 21 in the receiving cavity 11 from the bottom of the oil pan 10, away from the receiving cavity 11, thereby effectively improving the sealing performance of the oil supply device provided in this embodiment.

[0037] In one alternative embodiment, the first magnetic coupling element 41 provided in this embodiment is a magnet.

[0038] In one optional embodiment, the second magnetic coupling element 42 provided in this embodiment is a magnet, and the magnetic pole of the second magnetic coupling element 42 near the first magnetic coupling element 41 is opposite in magnetism to the magnetic pole of the first magnetic coupling element 41 near the second magnetic coupling element 42. Of course, in other embodiments, the second magnetic coupling element 42 provided in this embodiment can also be an electromagnet.

[0039] In an optional embodiment, the first magnetic coupling element and the second magnetic coupling element 42 provided in this embodiment are both multiple, with multiple first magnetic coupling elements 41 arranged at intervals along the circumference of the stirring assembly 21, and multiple second magnetic coupling elements 42 corresponding one-to-one with multiple first magnetic coupling elements 41. By providing multiple first magnetic coupling elements and second magnetic coupling elements 42, and arranging multiple first magnetic coupling elements 41 at intervals along the circumference of the stirring assembly 21, and having multiple second magnetic coupling elements 42 corresponding one-to-one with multiple first magnetic coupling elements 41, the transmission effect between the drive unit 30 and the stirring assembly 21 can be effectively improved.

[0040] Referring to Figures 3 and 4, in one specific embodiment, the vortex generator 20 further includes a support assembly 22. The support assembly 22 includes a support base 221, which is disposed at the bottom of the receiving cavity 11. The stirring assembly 21 is rotatably mounted on the support base 221. By providing the support base 221 at the bottom of the receiving cavity 11, the stirring assembly 21 provided in this embodiment can be rotatably mounted at the bottom of the receiving cavity 11 by means of being rotatably mounted on the support base 221.

[0041] Referring to Figures 3 and 4, in one specific embodiment, the support assembly 22 further includes a first bearing 222. A first mounting hole is provided on the side of the support base 221 near the receiving cavity 11. A support shaft is provided on the side of the stirring assembly 21 near the support base 221. The support shaft is rotatably mounted in the first mounting hole. The first bearing 222 is disposed between the first mounting hole and the support shaft. The outer ring of the first bearing 222 abuts against the inner wall of the first mounting hole, and the inner ring of the first bearing 222 abuts against the outer wall of the support shaft. By providing a first mounting hole on the side of the support base 221 near the receiving cavity 11 and a support shaft on the side of the stirring assembly 21 near the support base 221, the stirring assembly 21 provided in this embodiment can be rotatably mounted on the support base 221 by engaging the support shaft with the first mounting hole. At the same time, by providing a first bearing 222 between the support shaft and the first mounting hole, and by having the inner ring of the first bearing 222 abut against the outer wall of the support shaft and the outer ring of the first bearing 222 abut against the inner wall of the first mounting hole, the rotational resistance of the stirring assembly 21 can be effectively reduced, making the rotation of the stirring assembly 21 easier.

[0042] In one optional embodiment, the first bearing 222 provided in this embodiment is a rolling bearing.

[0043] In an optional embodiment, the stirring assembly 21 provided in this embodiment is provided with stirring blades on the side away from the support base 221, and the stirring assembly 21 provided in this embodiment can stir the engine oil through the stirring blades.

[0044] In one optional embodiment, the stirring blades provided in this embodiment are multiple, and the multiple stirring blades are arranged at intervals along the circumference of the stirring assembly 21.

[0045] Referring to Figures 3 and 4, in a specific embodiment, the bottom of the receiving cavity 11 is provided with a second mounting hole, the oil inlet of the oil drain channel 12 is provided on the inner side wall of the second mounting hole, and the support 221 is movably installed in the second mounting hole. The support 221 has a sealing state that isolates the oil inlet from the receiving cavity 11 and an oil draining state that connects the oil inlet with the receiving cavity 11. By movably installing the support base 221 provided in this embodiment into the second mounting hole and setting the oil inlet of the oil drain channel 12 on the inner side wall of the second mounting hole, the oil supply device provided in this embodiment can isolate the oil inlet of the oil drain channel 12 and the receiving cavity 11 by setting the support base 221 to a sealed state when oil draining is not required, thereby preventing the oil in the receiving cavity 11 from being discharged into the external environment through the oil drain channel 12. At the same time, when the oil supply device provided in this embodiment needs to drain oil, the oil inlet of the oil drain channel 12 and the receiving cavity 11 can be connected by setting the support base 221 to an oil draining state, so that the oil in the receiving cavity 11 can be discharged into the external environment through the oil drain channel 12.

[0046] Referring to Figures 3 and 4, in one specific embodiment, the support base 221 is provided with a first sealing element 2211. When the support base 221 is in a sealed state, the support base 221 can isolate the oil inlet and the receiving cavity 11 through the first sealing element 2211. By providing the first sealing element 2211 on the support base 221 provided in this embodiment, the support base 221 provided in this embodiment can isolate the oil inlet and the receiving cavity 11 through the first sealing element 2211 when it is in a sealed state.

[0047] Referring to Figures 3 and 4, in one specific embodiment, the bottom of the oil pan 10 is provided with a third mounting hole, which communicates with the second mounting hole. The drive unit 30 is movably mounted within the third mounting hole, and the support base 221 is connected to the drive unit 30. The support base 221 can switch between a sealing state and an oil draining state as the drive unit 30 moves. By movably mounting the drive unit 30 within the third mounting hole that communicates with the second mounting hole, and connecting the support base 221 to the drive unit 30, the drive unit 30 provided in this embodiment can drive the support base 221 to move within the second mounting hole when its position is adjusted relative to the oil pan 10 along the extension direction of the third mounting hole. This allows the support base 221 to switch between a sealing state and an oil draining state as the drive unit 30 moves.

[0048] Referring to Figures 3 and 4, in one specific embodiment, the drive unit 30 includes a housing assembly 31 and a drive assembly 32. The housing assembly 31 is movably mounted in a third mounting hole. A support base 221 is connected to the housing assembly 31, and a mounting cavity is formed between the housing assembly 31 and the support base 221. The drive assembly 32 is mounted in the mounting cavity. By movably mounting the housing assembly 31 in the third mounting hole and connecting the support base 221 to the housing assembly 31, the support base 221 can move as the housing assembly 31 moves.

[0049] In an optional embodiment, a second seal is provided between the housing assembly 31 and the support base 221 provided in this embodiment. The oil supply device provided in this embodiment can seal the gap between the housing assembly 31 and the support base 221 through the second seal, thereby preventing engine oil from entering the mounting cavity through the gap between the housing assembly 31 and the support base 221.

[0050] In one optional embodiment, the inner wall of the third mounting hole provided in this embodiment is provided with an internal thread structure, and the outer wall of the housing assembly 31 is provided with an external thread structure. The external thread structure provided in this embodiment is adapted to the internal thread structure, and the housing assembly 31 provided in this embodiment can be movably installed in the third mounting hole through the cooperation of the external thread structure and the internal thread structure.

[0051] In one optional embodiment, both the external thread structure and the internal thread structure provided in this embodiment are pipe threads.

[0052] In one optional embodiment, the drive assembly 32 provided in this embodiment includes a drive motor and a first mounting member. The drive motor provided in this embodiment is installed in the mounting cavity, and the output end of the drive motor is located on the side of the mounting cavity near the support base 221. The first mounting member is disposed on the output end of the drive motor, and the second magnetic coupling member 42 is installed on the first mounting member. The first mounting member forms the output end of the drive assembly 32 provided in this embodiment.

[0053] In another embodiment, the driving assembly 32 provided in this embodiment includes a rotating member, a flexible driving member, and an elastic reset assembly. The rotating member provided in this embodiment is rotatably installed in the mounting cavity. A second mounting member is installed at one end of the rotating member near the support base 221. A second magnetic coupling member 42 is installed on the second mounting member. The second mounting member forms the output end of the driving assembly 32 provided in this embodiment. The flexible driving member provided in this embodiment is connected to the rotating member and is wound around the rotating member. The rotating member can be driven by pulling the flexible driving member, causing the rotating member to rotate relative to the housing assembly 31. The elastic reset assembly is connected to the rotating member. When the flexible driving member is pulled to make the rotating member rotate relative to the housing assembly 31 in a preset direction, the elastic reset assembly can be driven to retract. At this time, the elastic reset assembly can apply elastic force to the rotating member. When the pulling of the flexible driving member and the rotating member is stopped, the rotating member can rewrap the flexible rotating member back onto the rotating member under the action of the elastic force applied by the elastic reset assembly.

[0054] In one optional embodiment, a drive shaft is provided at one end of the rotating component provided in this embodiment. A bearing mounting hole is provided on the side of the second mounting component near the rotating component. The drive shaft is rotatably inserted into the bearing mounting hole. A second bearing, a one-way bearing, is provided between the drive shaft and the bearing mounting hole. The inner ring of the second bearing abuts against the outer wall of the drive shaft, and the outer ring of the second bearing abuts against the inner wall of the bearing mounting hole. When the rotating component rotates in a preset direction, it can drive the second mounting component via the second bearing. When the rotating component rotates in the opposite direction to the preset direction, it can rotate relative to the second mounting component via the second bearing. By using a one-way bearing to transmit power between the rotating component and the second mounting component, the stirring assembly 21 provided in this embodiment can rotate unidirectionally under the drive of the driving assembly 32, which is beneficial for the formation of vortices.

[0055] In one optional embodiment, the housing assembly 31 provided in this embodiment is provided with a clearance hole. The clearance hole provided in this embodiment is used to connect the mounting cavity with the external environment. The first end of the flexible transmission member provided in this embodiment is connected to the rotating member. The second end of the flexible transmission member passes through the clearance hole into the external environment. A pull ring is provided on the second end of the flexible transmission member, and the user can pull the flexible transmission member through the pull ring.

[0056] According to another aspect of this application, an engine is provided, the engine including a fuel supply device, the fuel supply device being the one described above.

[0057] In an optional embodiment, the engine provided in this embodiment further includes a lubrication device. The oil suction port of the lubrication device provided in this embodiment is located in the receiving cavity 11 and is immersed in the engine oil. The lubrication device can draw the engine oil in the receiving cavity 11 through the oil suction port.

[0058] In an optional embodiment, the position of the oil suction port provided in this embodiment corresponds to the position of the vortex generator 20. The oil suction port provided in this embodiment is equipped with a filter device. When the stirring assembly 21 stirs the oil in the receiving cavity 11, the flowing oil can flush the impurities on the filter device to remove the impurities on the filter device.

[0059] In summary, implementing the oil supply device and engine provided in this embodiment has at least the following beneficial technical effects: The oil supply device provided in this embodiment, by rotatably installing the stirring component 21 at the bottom of the receiving cavity 11, allows the oil supply device provided in this embodiment to stir the oil in the oil pan 10 before discharging the waste oil, so that the impurities deposited at the bottom of the receiving cavity 11 are resuspended in the oil, thereby allowing the impurities at the bottom of the receiving cavity 11 to be discharged into the external environment along with the waste oil from the oil drain channel 12. At the same time, when the stirring component 21 provided in this embodiment stirs the oil, it also causes the oil to generate a vortex at the position corresponding to the stirring component 21. Since the position of the oil inlet of the oil drain channel 12 corresponds to the position of the stirring component 21, during the process of discharging the waste oil into the external environment through the oil drain channel 12, the air in the oil drain passage can quickly enter the receiving cavity 11 through the center of the vortex and generate a certain negative pressure at the oil inlet of the oil drain channel 12, so that the waste oil in the receiving cavity 11 can be quickly discharged into the external environment.

[0060] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. An oil supply device, characterized in that, The oil supply device includes: An oil pan (10) is provided with a receiving cavity (11) and an oil drain channel (12). The receiving cavity (11) is used to receive engine oil, and the oil drain channel (12) is connected to the receiving cavity (11). The oil inlet of the oil drain channel (12) is located at the bottom of the receiving cavity (11), and the engine oil can be discharged into the external environment through the oil drain channel (12). The vortex generating unit (20) includes a stirring assembly (21), which is rotatably mounted at the bottom of the receiving cavity (11) and corresponds to the position of the oil inlet. It is used to stir the engine oil so that the engine oil can generate a vortex at the position corresponding to the oil inlet.

2. The oil supply device according to claim 1, characterized in that, The oil supply device also includes a drive unit (30), which is disposed on the oil pan (10) and drivenly connected to the stirring assembly (21) for driving the stirring assembly (21). The stirring assembly (21) can stir the oil under the drive of the drive unit (30).

3. The oil supply device according to claim 2, characterized in that, The drive unit (30) is located on the bottom of the oil pan (10) away from the receiving cavity (11) and corresponds to the position of the stirring assembly (21). The oil supply device also includes a magnetic coupling unit (40), which includes a first magnetic coupling element (41) and a second magnetic coupling element (42). The first magnetic coupling element (41) is located on the stirring assembly (21), and the second magnetic coupling element (42) is located on the output end of the drive unit (30). The position of the first magnetic coupling element (41) corresponds to the position of the second magnetic coupling element (42). The output end of the drive unit (30) can drive the stirring assembly (21) through the coupling of the first magnetic coupling element (41) and the second magnetic coupling element (42).

4. The oil supply device according to claim 2 or 3, characterized in that, The vortex generator (20) also includes a support assembly (22), which includes a support base (221) disposed at the bottom of the accommodating cavity (11), and the stirring assembly (21) is rotatably mounted on the support base (221).

5. The oil supply device according to claim 4, characterized in that, The support assembly (22) further includes a first bearing (222). A first mounting hole is provided on the side of the support base (221) near the receiving cavity (11). A support shaft is provided on the side of the stirring assembly (21) near the support base (221). The support shaft is rotatably installed in the first mounting hole. The first bearing (222) is disposed between the first mounting hole and the support shaft. The outer ring of the first bearing (222) abuts against the inner sidewall of the first mounting hole, and the inner ring of the first bearing (222) abuts against the outer sidewall of the support shaft.

6. The oil supply device according to claim 4, characterized in that, The bottom of the receiving cavity (11) is provided with a second mounting hole, the oil inlet of the oil drain channel (12) is provided on the inner side wall of the second mounting hole, the support (221) is movably installed in the second mounting hole, and the support (221) has a sealing state that isolates the oil inlet from the receiving cavity (11) and an oil draining state that connects the oil inlet with the receiving cavity (11).

7. The oil supply device according to claim 6, characterized in that, The support base (221) is provided with a first sealing element (2211). When the support base (221) is in the sealed state, the support base (221) can isolate the oil inlet and the receiving cavity (11) through the first sealing element (2211).

8. The oil supply device according to claim 6, characterized in that, The bottom of the oil pan (10) is provided with a third mounting hole, which is connected to the second mounting hole. The drive unit (30) is movably installed in the third mounting hole. The support seat (221) is connected to the drive unit (30). The support seat (221) can switch between the sealing state and the oil discharge state as the drive unit (30) moves.

9. The oil supply device according to claim 8, characterized in that, The drive unit (30) includes a housing assembly (31) and a drive assembly (32). The housing assembly (31) is movably installed in the third mounting hole. The support base (221) is connected to the housing assembly (31). A mounting cavity is formed between the housing assembly (31) and the support base (221). The drive assembly (32) is installed in the mounting cavity.

10. An engine, characterized in that, The engine includes a fuel supply device, which is the fuel supply device according to any one of claims 1 to 9.

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