Separating assembly, oil pot and engine

Abstract

The separation assembly comprises a centrifugal channel and a separation part, an inlet of the centrifugal channel is suitable for introducing an oil-gas mixture, the separation part is provided with a centrifugal separation cavity, an inlet of the centrifugal separation cavity is communicated with an outlet of the centrifugal channel, at least part of the centrifugal channel is in an arc shape, and the oil-gas separation effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of engines, and particularly relates to a separation assembly, an oil pot and an engine. Background Art

[0002] During the driving of a vehicle, due to the large acceleration during various acceleration processes of the vehicle, the oil pressure of the vehicle may fluctuate, and after the engine oil is pumped out, a certain amount of gas will be mixed in. This situation will not only affect the lubrication effect, but also when the engine oil containing gas enters the engine oil tank, more gas will be generated. Due to the characteristics of the engine oil, the gas in the engine oil is not easy to disappear, which will reduce the lubrication effect on the engine.

[0003] In the prior art, when designers set the oil-gas separation channel, the oil-gas mixture directly flows into the separator body through the conveying pipeline, and problems such as too fast or too slow air flow will occur, resulting in poor oil-gas separation effect. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a separation assembly, an oil pot and an engine, which solves the problem of poor oil-gas separation effect.

[0005] To achieve the purpose of the utility model, the following technical solutions are provided:

[0006] In a first aspect, the utility model provides a separation assembly, including: a centrifugal channel, the inlet of the centrifugal channel being adapted to introduce an oil-gas mixture; a separation member having a centrifugal separation chamber, the inlet of the centrifugal separation chamber being in communication with the outlet of the centrifugal channel, and at least part of the centrifugal channel being arc-shaped.

[0007] In one embodiment, the positive projection of part of the centrifugal separation chamber in the height direction of the separation member is arc-shaped, and the centrifugal channel is in communication with the centrifugal separation chamber in the tangential direction of the centrifugal separation chamber.

[0008] In one embodiment, the separation member includes a first cylindrical portion, the first cylindrical portion enclosing to form the centrifugal separation chamber, the first cylindrical portion being provided with a first inlet, the first inlet being in communication with the outlet of the centrifugal channel; the first cylindrical portion is provided with a first outlet and a second outlet, the height of the first outlet being greater than the height of the second outlet, the first inlet being disposed between the first outlet and the second outlet, the first outlet being for discharging gas, and the second outlet being for discharging oil.

[0009] In one embodiment, the radial dimension of part of the first cylindrical portion gradually decreases in the direction from the first outlet to the second outlet.

[0010] In one embodiment, the first cylinder part includes a first sub - cylinder part and a second sub - cylinder part. The first sub - cylinder part is provided with the first inlet. The second sub - cylinder part is connected to the first sub - cylinder part at the first outlet. The second sub - cylinder part is received in the centrifugal separation chamber. The second sub - cylinder part has an air outlet channel. The inlet of the air outlet channel is communicated with the centrifugal separation chamber, and the outlet of the air outlet channel is communicated with the first outlet.

[0011] In one embodiment, the height of the first cylinder part is H1. The first sub - cylinder part includes a connected first body and a diversion part. The distance between the connection part of the first body and the diversion part in the axial direction of the first sub - cylinder part and the second outlet is H2. The distance between the inlet of the air outlet channel and the second outlet is H3, satisfying: H1 > 60 mm, and / or, H2 > 40 mm, and / or, H3 > 20 mm.

[0012] In one embodiment, the separation component further includes a connecting pipe. The connecting pipe extends along a first direction. The connecting pipe has a first connection port and a second connection port. The first connection port is adapted to be communicated with the oil outlet of the engine, and the second connection port is communicated with the inlet of the centrifugal channel.

[0013] In one embodiment, both the first sub - cylinder part and the second sub - cylinder part are cylindrical bodies. The diameter of the first sub - cylinder part is A1, and the diameter of the second sub - cylinder part is A2, satisfying: A1 > A2.

[0014] In one embodiment, the connecting pipe is cylindrical, the second outlet is circular, the diameter of the second outlet is A3, and the diameter of the connecting pipe is A4, satisfying: 1.0 ≤ A3 / A4 ≤ 1.5; and / or, A1 and A4 satisfy: A1 / A4 ≥ 2.0.

[0015] In a second aspect, the present utility model further provides an oil pot, including a housing and the separation component according to any one of the various embodiments of the first aspect. The housing is connected to the separation component. The housing encloses a receiving space. The receiving space receives the separation component. The receiving space is communicated with both the first outlet and the second outlet. The inlet of the receiving space is adapted to be communicated with the oil outlet of the engine.

[0016] In one embodiment, the housing is further provided with a through - hole. The through - hole is communicated with the receiving space. The through - hole is arranged at a position higher than the inlet of the receiving space.

[0017] In a third aspect, the present utility model further provides an engine, including an engine body and the oil pot according to any one of the various embodiments of the second aspect. The oil outlet of the engine body is communicated with the inlet of the receiving space of the oil pot.

[0018] By providing a centrifugal channel and a separating member, the inlet of the centrifugal channel is adapted to receive an oil-gas mixture. The separating member has a centrifugal separation chamber, and the inlet of the centrifugal separation chamber is in communication with the outlet of the centrifugal channel. At least a part of the centrifugal channel is arc-shaped. The separation assembly utilizes the centrifugal channel to accelerate and centrifuge the oil-gas mixture, so that the oil-gas mixture can obtain a centrifugal force before entering the separating member, enabling thorough oil-gas separation and thus enhancing the oil-gas separation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 is the first sectional view of a separation assembly of an embodiment;

[0021] Figure 2 is the front view of a separation assembly of an embodiment;

[0022] Figure 3 is the top view of a separation assembly of an embodiment;

[0023] Figure 4 is the second sectional view of a separation assembly of an embodiment;

[0024] Figure 5 is the sectional view of an oil pot of an embodiment.

[0025] DESCRIPTION OF THE REFERENCE NUMERALS:

[0026] 10 - Separation assembly, 11 - Centrifugal channel, 12 - Separating member, 121 - First sub-cylinder part, 122 - Diversion part, 123 - Second sub-cylinder part, 1231 - Gas outlet channel, 13 - Centrifugal separation chamber, 14 - First outlet, 15 - Second outlet, 16 - Connecting pipe, 17 - Housing, 18 - Receiving space, 181 - Inlet of the receiving space, 19 - Through hole, H1 - Height of the first cylinder part, H2 - Distance between the connection point of the first body and the diversion part in the axial direction of the first sub-cylinder part and the second outlet, H3 - Distance between the inlet of the gas outlet channel and the second outlet, A1 - Diameter of the first sub-cylinder part, A2 - Diameter of the second sub-cylinder part, A3 - Diameter of the second outlet, A4 - Diameter of the connecting pipe. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0027] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] It should be noted that when a component is referred to as being "fixed to" another component, it can be directly on the other component or there can also be an intermediate component. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be an intermediate component at the same time.

[0029] Unless otherwise defined, all technical and scientific terms used in the present utility model have the same meaning as commonly understood by those skilled in the technical field to which the present utility model belongs. The terms used in the present utility model in the specification are only for the purpose of describing specific embodiments, and are not intended to limit the present utility model. The term "and / or" used in the present utility model includes any and all combinations of one or more of the related listed items.

[0030] The following will describe in detail some embodiments of the present utility model in conjunction with the accompanying drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0031] An embodiment of the present utility model provides a separation component 10. Please refer to Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 . The separation component 10 is used for an oil pot and includes a centrifugal channel 11 and a separation member 12.

[0032] The inlet of the centrifugal channel 11 is adapted to introduce an oil-gas mixture.

[0033] The separation member 12 has a centrifugal separation chamber 13. The inlet of the centrifugal separation chamber 13 is communicated with the outlet of the centrifugal channel 11. At least a part of the centrifugal channel 11 is arc-shaped. Optionally, after the oil-gas mixture passes through the separation member 12, the lighter gas is connected to the inside of the crankcase through the first outlet 14, and the heavier oil directly sinks to the bottom of the oil pot. Optionally, the material of the flow guiding member can be plastic, metal, alloy, etc. Optionally, the material of the separation member 12 can be plastic, metal, alloy, etc. Optionally, the orthographic projection of the centrifugal separation chamber 13 in the height direction of the separation member 12 is circular, square or irregular, etc. Optionally, the centrifugal separation chamber 13 is in a cylindrical shape or a square tube shape.

[0034] By providing a centrifugal channel 11 and a separating member 12, the inlet of the centrifugal channel 11 is adapted to receive an oil-gas mixture. The separating member 12 has a centrifugal separation chamber 13, the inlet of the centrifugal separation chamber 13 is in communication with the outlet of the centrifugal channel 11, and at least a part of the centrifugal channel 11 is arc-shaped. The separation assembly 10 utilizes the centrifugal channel 11 to accelerate and centrifugally separate the oil-gas mixture, enabling the oil-gas mixture to acquire a centrifugal force before entering the separating member 12, thereby achieving a more thorough oil-gas separation and enhancing the oil-gas separation effect.

[0035] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 , the orthographic projection of a part of the centrifugal separation chamber 13 in the height direction of the separating member 12 is arc-shaped, and the centrifugal channel 11 communicates with the centrifugal separation chamber 13 tangentially to the centrifugal separation chamber 13.

[0036] Optionally, the centrifugal channel 11 communicates with the outer edge of the centrifugal separation chamber 13. Optionally, after the oil-gas mixture enters the centrifugal separation chamber 13 tangentially along the arc, it rotates along the inner wall of the separating member 12. Since the droplets with a larger density have a greater inertia, they are more likely to be thrown towards the outer wall of the separating member 12, and the gas with a smaller density tends to remain in the central region, thus facilitating the separation of oil and gas. Optionally, the tangential gas inlet method enables the oil-gas mixture to acquire a certain rotational speed when entering the centrifugal separation chamber 13, further enhancing the centrifugal force exerted on the oil droplets in the oil-gas mixture and helping the oil droplets to separate from the gas and deposit more quickly.

[0037] Optionally, the arc-shaped tangential gas inlet design helps to reduce the turbulence phenomenon of the oil-gas mixture in the separating member 12, making the flow of the oil-gas mixture more stable and orderly, which helps to reduce energy loss and improve the separation efficiency. Optionally, the tangential gas inlet can ensure the uniform distribution of the fluid in the separating member 12, avoiding the situation of too fast or too slow air flow velocity in local areas, thereby optimizing the efficiency of the entire separation process.

[0038] Specifically, by providing that the centrifugal channel 11 communicates with the centrifugal separation chamber 13 tangentially to the centrifugal separation chamber 13, the speed at which the oil-gas mixture enters is the fastest.

[0039] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 , the separating member 12 includes a first cylindrical part, the first cylindrical part encloses to form the centrifugal separation chamber 13, the first cylindrical part is provided with a first inlet, and the first inlet is in communication with the outlet of the centrifugal channel 11; the first cylindrical part is provided with a first outlet 14 and a second outlet 15, the height of the first outlet 14 is greater than the height of the second outlet 15, the first inlet is arranged between the first outlet 14 and the second outlet 15, the first outlet 14 is for discharging gas, and the second outlet 15 is for discharging oil.

[0040] Optionally, the cross-sectional shape of the first outlet 14 can be a polygon, a circle, an ellipse, an irregular shape, etc. Optionally, the cross-sectional shape of the first outlet 14 can specifically be, but is not limited to, a quadrilateral, a pentagon, a hexagon, an octagon, a circle, an ellipse, etc., and the present utility model does not make a limitation. Optionally, the cross-sectional shape of the second outlet 15 can be a polygon, a circle, an ellipse, an irregular shape, etc. Optionally, the cross-sectional shape of the second outlet 15 can specifically be, but is not limited to, a quadrilateral, a pentagon, a hexagon, an octagon, a circle, an ellipse, etc., and the present utility model does not make a limitation. Optionally, the shape of the first sub-cylinder part 121 can be a polygon, a circle, an ellipse, an irregular shape, etc. Optionally, the shape of the first sub-cylinder part 121 can specifically be, but is not limited to, a quadrilateral, a pentagon, a hexagon, an octagon, a circle, an ellipse, etc., and the present utility model does not make a limitation.

[0041] Optionally, the connection mode between the first sub-cylinder part 121 and the diversion part 122 can specifically be, but is not limited to, snap connection, bolt and nut connection, riveting connection, welding connection, etc. Optionally, the connection mode between the first sub-cylinder part 121 and the diversion part 122 is bolt and nut connection.

[0042] Specifically, by providing that the separation member 12 includes a first cylinder part, the first cylinder part encloses to form a centrifugal separation chamber 13, the first cylinder part is provided with a first inlet, and the first inlet communicates with the outlet of the centrifugal channel 11; the first cylinder part is provided with a first outlet 14 and a second outlet 15, the height of the first outlet 14 is greater than the height of the second outlet 15, the first inlet is arranged between the first outlet 14 and the second outlet 15, the first outlet 14 is for discharging gas, the second outlet 15 is for discharging oil, and the first cylinder part prevents the oil-gas mixture from splashing randomly. Due to the density difference between oil and gas, the engine oil smoothly sinks to the bottom of the oil pot through the guiding action of the first cylinder part, improving the efficiency of receiving and guiding the oil-gas mixture.

[0043] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 , the radial dimension of a part of the first cylinder part gradually decreases in the direction from the first outlet 14 to the second outlet 15.

[0044] Optionally, the first cylinder part includes a diversion part 122, and the diversion part 122 is a conical cylinder. Optionally, the diameter of the diversion part 122 gradually decreases in the direction away from the first sub-cylinder part 121 from the first sub-cylinder part 121. Optionally, the angle of the conical angle of the diversion part 122 is between 10° and 20°.

[0045] Optionally, by arranging a portion of the first cylinder portion to gradually reduce its radial dimension in a direction from the first outlet 14 to the second outlet 15 , the flow rate of the oil-gas mixture inside the separation component 10 is accelerated.

[0046] In one embodiment, please refer to Figure 1 , Figure 2 and Figure 3 The separation element 12 includes a first sub-cylinder portion 121 and a second sub-cylinder portion 123. The first sub-cylinder portion 121 is provided with a first inlet. The second sub-cylinder portion 123 is connected to the first sub-cylinder portion 121 at the first outlet 14. The second sub-cylinder portion 123 is accommodated in the centrifugal separation chamber 13. The second sub-cylinder portion 123 has an air outlet channel 1231. The inlet of the air outlet channel 1231 is connected to the centrifugal separation chamber 13, and the outlet of the air outlet channel 1231 is connected to the first outlet 14.

[0047] Optionally, the connection between the second sub-barrel portion 123 and the first sub-barrel portion 121 may be, but is not limited to, snap connection, bolt and nut connection, riveting connection, welding connection, etc. Optionally, the connection between the second sub-barrel portion 123 and the first sub-barrel portion 121 is welding connection.

[0048] Optionally, the shape of the second sub-barrel portion 123 may be polygonal, circular, elliptical, irregular, etc. Optionally, the shape of the second sub-barrel portion 123 may be, but not limited to, quadrilateral, pentagon, hexagon, octagon, circular, elliptical, etc., which is not limited in the present invention.

[0049] Specifically, the separation element 12 includes a first sub-cylinder portion 121 and a second sub-cylinder portion 123, both of which are cylindrical bodies, and the second sub-cylinder portion 123 is connected to the first sub-cylinder portion 121 at the first outlet 14, and the second sub-cylinder portion 123 is accommodated in the centrifugal separation chamber 13. The second sub-cylinder portion 123 has an air outlet channel 1231, and the inlet of the air outlet channel 1231 is connected to the centrifugal separation chamber 13, and the outlet of the air outlet channel 1231 is connected to the first outlet 14, so that the gas can be concentrated and discharged along the second sub-cylinder portion 123, thereby further improving the gas diversion effect and avoiding gas turbulence.

[0050] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, the height of the first cylindrical part is H1. The first sub-cylindrical part 121 includes a connected first body and a diversion part 122. The distance between the connection point of the first body and the diversion part 122 in the axial direction of the first sub-cylindrical part 121 and the second outlet 15 is H2, and the distance between the inlet of the air outlet channel 1231 and the second outlet 15 is H3, satisfying: H1 > 60 mm, and / or, H2 > 40 mm, and / or, H3 > 20 mm.

[0051] Optionally, H1 can specifically be, but is not limited to, 65 mm, 70 mm, 80 mm, 100 mm, etc. Optionally, H2 can specifically be, but is not limited to, 50 mm, 70 mm, 80 mm, 100 mm, etc. Optionally, H3 can specifically be, but is not limited to, 30 mm, 40 mm, 50 mm, 60 mm, etc.

[0052] Optionally, the arc angle of the centrifugal channel 11 is not limited. Optionally, through the arc-shaped design of the centrifugal channel 11, the flow of the oil-gas mixture is relatively smooth, and a centrifugal force is generated on the oil-gas mixture.

[0053] Optionally, the above settings regarding the dimensions enable thorough oil-gas separation and improve the oil-gas separation effect.

[0054] In one embodiment, please refer to Figure 1 、 Figure 2 and Figure 3 , the separation component 10 further includes a connecting pipe 16. The connecting pipe 16 extends along the first direction. The connecting pipe 16 has a first connection port and a second connection port. The first connection port is adapted to communicate with the oil outlet of the engine, and the second connection port communicates with the inlet of the centrifugal channel 11.

[0055] Optionally, the first direction is the same as the direction from the second outlet 15 towards the first outlet 14.

[0056] Optionally, the shape of the first connection port can be a polygon, a circle, an ellipse, an irregular shape, etc. Optionally, the shape of the first connection port can specifically be, but is not limited to, a quadrilateral, a pentagon, a hexagon, an octagon, a circle, an ellipse, etc., and the present utility model does not limit it. Optionally, the shape of the second connection port can be a polygon, a circle, an ellipse, an irregular shape, etc. Optionally, the shape of the second connection port can specifically be, but is not limited to, a quadrilateral, a pentagon, a hexagon, an octagon, a circle, an ellipse, etc., and the present utility model does not limit it.

[0057] Optionally, by setting that the separating component 10 further includes a connecting pipe 16 which extends along the first direction and has a first connection port and a second connection port, the first connection port is adapted to communicate with the oil outlet of the engine, and the second connection port communicates with the inlet of the centrifugal channel 11, so that the connecting pipe 16 connects the oil outlet of the engine and the inlet of the centrifugal channel 11, enabling the oil-gas mixture to flow rapidly along the connecting pipe 16 and preventing the oil-gas mixture from flowing randomly.

[0058] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the first sub-cylinder part 121 and the second sub-cylinder part 123 are both cylindrical bodies, the diameter of the first sub-cylinder part 121 is A1, the diameter of the second sub-cylinder part 123 is A2, and the following is satisfied: A1 > A2.

[0059] Optionally, A1 > A2, which ensures the smooth flow of the gas and the oil after the separation of the oil and the gas.

[0060] Specifically, by setting the diameter of the first sub-cylinder part 121 as A1, the diameter of the second sub-cylinder part 123 as A2, and making A1 > A2, the oil-gas mixture has a longer flow path, thus having a greater centrifugal force, enabling the complete separation of the oil and the gas.

[0061] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , the connecting pipe 16 is cylindrical, the second outlet 15 is circular, the diameter of the second outlet 15 is A3, the diameter of the connecting pipe 16 is A4, and the following is satisfied: 1.0 ≤ A3 / A4 ≤ 1.5; and / or, A1 and A4 satisfy: A1 / A4 ≥ 2.0.

[0062] Optionally, A3 / A4 can specifically be but is not limited to 1.0, 1.1, 1.2, 1.3, and 1.5, etc. Optionally, A1 / A4 can specifically be but is not limited to 2.0, 2.1, 2.2, 2.3, and 2.5, etc.

[0063] Specifically, the above settings make A3 / A4 and A1 / A4 within an appropriate range, so that the oil-gas mixture has a greater centrifugal force, enabling the complete separation of the oil and the gas.

[0064] The embodiment of the present utility model further provides an oil pot. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5, including a shell 17 and the separation component 10 as mentioned above, the shell 17 is connected to the separation component 10, the shell 17 encloses a receiving space 18, the receiving space 18 receives the separation component 10, the receiving space 18 is connected to the first outlet 14 and the second outlet 15, and the inlet 181 of the receiving space is suitable for connecting with the oil outlet of the engine.

[0065] Optionally, the material of the shell 17 can be metal, alloy, etc.

[0066] Optionally, the shape of the cross section of the entrance 181 of the receiving space may be a polygon, a circle, an ellipse, an irregular shape, etc. Optionally, the shape of the cross section of the entrance 181 of the receiving space may be, but is not limited to, a quadrilateral, a pentagon, a hexagon, an octagon, a circle, an ellipse, etc., which is not limited in the present invention.

[0067] The oil pot includes a shell 17 and the separation component 10 as mentioned above, the shell 17 is connected to the separation component 10, the shell 17 encloses a receiving space 18, the receiving space 18 receives the separation component 10, the receiving space 18 is connected to the first outlet 14 and the second outlet 15, the inlet 181 of the receiving space is suitable for connecting with the oil outlet of the engine, thereby providing a stable accommodating space and separation space for the oil-gas mixture to prevent the oil-gas mixture from running around.

[0068] In one embodiment, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 The shell 17 is further provided with a through hole 19 , which is communicated with the receiving space 18 , and the through hole 19 is arranged at a higher position than the entrance 181 of the receiving space.

[0069] Optionally, the cross-sectional shape of the through hole 19 may be polygonal, circular, elliptical, irregular, etc. Optionally, the cross-sectional shape of the through hole 19 may be, but not limited to, quadrilateral, pentagon, hexagon, octagon, circular, elliptical, etc., which is not limited in the present invention.

[0070] The shell 17 is provided with a through hole 19, which is connected to the receiving space 18, so that the gas entering the receiving space 18 can flow out from the through hole 19. The through hole 19 is arranged at a higher position than the entrance 181 of the receiving space, and the low density of gas is used to make it easy to flow upward, so as to avoid the gas from being deposited at the bottom of the receiving space 18.

[0071] The embodiment of the utility model further provides an engine, comprising an engine body and the oil pot as described above, wherein the oil outlet of the engine body is connected to the inlet 181 of the receiving space of the oil pot.

[0072] Optionally, the engine further includes an oil pump. The oil-gas mixture pumped out from the engine body enters the centrifugal channel 11 of the flow guide member through the inlet 181 of the accommodation space of the oil pot.

[0073] In the description of the embodiments of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present invention.

[0074] The above-disclosed is only a preferred embodiment of the present invention, and of course, the scope of rights of the present invention cannot be limited thereby. Those of ordinary skill in the art can understand the entire or part of the process of implementing the above embodiments, and the equivalent changes made according to the present invention still fall within the scope covered by the present invention.

Claims

1. A separation component, characterized in that, Comprising: A centrifugal channel, the inlet of the centrifugal channel being adapted to admit an oil-gas mixture; A separating member having a centrifugal separation chamber, the inlet of the centrifugal separation chamber being in communication with the outlet of the centrifugal channel, at least a part of the centrifugal channel being arc-shaped.

2. The separation component according to claim 1, wherein The positive projection of a part of the centrifugal separation chamber in the height direction of the separating member is arc-shaped, and the centrifugal channel communicates with the centrifugal separation chamber in the tangential direction of the centrifugal separation chamber.

3. The separation component according to claim 1, wherein The separating member includes a first cylindrical portion that encloses to form the centrifugal separation chamber. The first cylindrical portion is provided with a first inlet that communicates with the outlet of the centrifugal channel. The first cylindrical portion is provided with a first outlet and a second outlet. The height of the first outlet is greater than the height of the second outlet. The first inlet is disposed between the first outlet and the second outlet. The first outlet is for discharging gas, and the second outlet is for discharging oil.

4. The separation component according to claim 3, characterized in that, The radial dimension of a part of the first cylindrical portion gradually decreases in the direction from the first outlet to the second outlet.

5. The separation component according to claim 3, characterized in that, The first cylindrical portion includes a first sub-cylindrical portion and a second sub-cylindrical portion. The first sub-cylindrical portion is provided with the first inlet. The second sub-cylindrical portion is connected to the first sub-cylindrical portion at the first outlet. The second sub-cylindrical portion is received in the centrifugal separation chamber. The second sub-cylindrical portion has an air outlet channel. The inlet of the air outlet channel communicates with the centrifugal separation chamber, and the outlet of the air outlet channel communicates with the first outlet.

6. The separation component according to claim 5, wherein, The height of the first cylindrical portion is H1. The first sub-cylindrical portion includes a first body and a guiding portion that are connected. The distance between the connection portion of the first body and the guiding portion in the axial direction of the first sub-cylindrical portion and the second outlet is H2. The distance between the inlet of the air outlet channel and the second outlet is H3, satisfying: H1 > 60 mm, and / or, H2 > 40 mm, and / or, H3 > 20 mm.

7. The separation component according to any one of claims 1 to 6, characterized in that, The separation assembly further includes a connecting pipe that extends in a first direction. The connecting pipe has a first connection port and a second connection port. The first connection port is adapted to communicate with the oil outlet of the engine, and the second connection port communicates with the inlet of the centrifugal channel.

8. The separation component according to claim 7, wherein Both the first sub-cylindrical portion and the second sub-cylindrical portion are cylindrical bodies. The diameter of the first sub-cylindrical portion is A1, and the diameter of the second sub-cylindrical portion is A2, satisfying: A1 > A2.

9. The separation component according to claim 8, wherein The connecting pipe is cylindrical. The second outlet is circular. The diameter of the second outlet is A3, and the diameter of the connecting pipe is A4, satisfying: 1.0 ≤ A3 / A4 ≤ 1.5; and / or, A1 and A4 satisfy: A1 / A4 ≥ 2.

0.

10. An oil pot, characterized in that, Comprising a housing and the separation assembly according to any one of claims 1 to 9. The housing is connected to the separation assembly. The housing encloses a receiving space that receives the separation assembly. The receiving space communicates with both the first outlet and the second outlet. The inlet of the receiving space is adapted to communicate with the oil outlet of the engine.

11. The oil pot according to claim 10, characterized in that, The housing is further provided with a through hole that communicates with the receiving space. The through hole is disposed at a position higher than the inlet of the receiving space.

12. An engine, characterized in that, Comprising an engine body and an oil pot as described in any one of claims 10 to 11, an oil outlet of the engine body is communicated with an inlet of a receiving space of the oil pot.

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