Oil-gas separation unit

Abstract

This utility model discloses an oil-gas separation device. The oil-gas separation device includes a camshaft, a gear, a body, and blades. The camshaft has a hollow pipe. The gear is sleeved on and connected to the camshaft. The gear is used for connection to external equipment. The body is sealed to the gear. The body and gear are distributed along the axial direction of the camshaft. The blades are connected to the body. The blades protrude radially from the body. The body has an air inlet and an oil outlet communicating with the air inlet. The air inlet communicates with the hollow pipe. This oil-gas separation device has high separation efficiency, good separation effect, and a simple structure.

Description

Technical Field

[0001] This utility model belongs to the field of engine technology, and in particular relates to an oil-gas separation device. Background Technology

[0002] As vehicle emission requirements become increasingly stringent, so too do the requirements for engine emissions and crankcase exhaust. As a result, the design of engine crankcase ventilation systems has become more diverse and complex in order to meet current environmental requirements.

[0003] Currently, passive oil-gas separators are widely used in engines to purify crankcase exhaust gases. These include labyrinth oil-gas separators, jet-hole oil-gas separators, and cyclone oil-gas separators. All of these separate oil and gas in the crankcase exhaust gases by utilizing the engine intake air. The separated oil falls back into the crankcase, while the gas participates in the engine intake air for combustion.

[0004] All three types of oil-gas separators mentioned above are passive oil-gas separators. These passive oil-gas separators utilize the engine's own gas pressure difference, which varies with engine operating conditions, resulting in low oil-gas separation efficiency. This makes it easy for incompletely separated engine oil to be carried into the engine for combustion, causing the engine to operate roughly, affecting engine life, and leading to worse engine emissions, deteriorating the environment, and having adverse effects on human health. Utility Model Content

[0005] This utility model aims to at least partially solve one of the technical problems in the related art.

[0006] An oil-gas separation device, comprising: Camshaft, the camshaft having a hollow tube; A gear, which is fitted onto and connected to the camshaft, is used to connect to external equipment; A body, the body being sealed to the gear, the body and the gear being distributed axially along the camshaft; and The blade is connected to the body and protrudes radially from the body. The blade has an air inlet and an oil outlet communicating with the air inlet. The air inlet is connected to the hollow pipe.

[0007] The oil-gas separation device provided by this utility model includes a camshaft, a gear, a body, and blades. The gear is connected to an external device, which drives the gear to rotate. The rotation of the gear drives the body and camshaft connected to it to rotate. The oil-gas mixture enters through the air inlet. Due to the rotation of the body and the blades connected to it, under the action of centrifugal force, the oil-gas mixture is separated into gas and oil. The oil flows out from the oil outlet, and the gas flows out from the hollow pipe. This oil-gas separation device has high separation efficiency, good separation effect, and simple structure.

[0008] In some embodiments, along the radial direction of the body, the blade has a first sidewall and a second sidewall opposite to the first sidewall, the first sidewall being connected to the body, and the oil outlet being located on the second sidewall.

[0009] By setting the oil outlet on the second sidewall, the separation effect of the oil-gas mixture can be improved, and the oil can flow out from the oil outlet more effectively.

[0010] In some embodiments, the second sidewall has a plurality of oil outlet holes, which are evenly spaced apart on the second sidewall.

[0011] By setting multiple oil outlet holes on the second sidewall, the separation efficiency of the oil-gas mixture can be improved.

[0012] In some embodiments, along the axial direction of the body, the blade has a third sidewall and a fourth sidewall opposite to the third sidewall, the third sidewall being away from the gear relative to the fourth sidewall, and the air inlet being located on the third sidewall.

[0013] By placing the air inlet on the third side wall, it is convenient for the oil-gas mixture to enter the air inlet.

[0014] In some embodiments, the third sidewall has a plurality of air inlets, which are evenly spaced apart on the third sidewall.

[0015] By setting multiple air intake holes on the third side wall, the air intake efficiency can be improved.

[0016] In some embodiments, multiple blades are provided, and the multiple blades are evenly spaced along the circumference of the body.

[0017] By setting multiple blades evenly spaced along the circumference of the body, not only can the separation effect and efficiency be improved, but the oil-gas separator can also rotate more smoothly.

[0018] In some embodiments, the body has an exhaust channel that communicates with the hollow pipe and is coaxially arranged with the hollow pipe, and the exhaust channel communicates with the air inlet.

[0019] By setting up an exhaust channel, it is easy to connect the air intake port with the hollow pipe.

[0020] In some embodiments, the body has a vent hole that communicates with the exhaust channel and the oil outlet hole, and the vent hole extends radially along the body.

[0021] By setting up vents, it is easy to connect the air intake and exhaust channels.

[0022] In some embodiments, a sealing ring is also included, and a sealing groove is provided on the side of the body near the gear, the sealing groove surrounding the exhaust passage, and the sealing ring is located in the sealing groove.

[0023] By setting a sealing groove and a sealing ring, a sealed connection between the body and the gear can be easily achieved, preventing the gas formed during separation from flowing out from the connection between the body and the gear.

[0024] In some embodiments, a fastener is also included, the body having a connecting hole, the gear having a threaded hole, and the fastener passing through the connecting hole and threadedly connected to the gear through the threaded hole.

[0025] By providing connection holes and threaded holes, it is easy to connect the body and gears using fasteners. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0027] Figure 1 This is a schematic diagram of the structure of an oil-gas separation device provided in one embodiment of the present invention; Figure 2 This is an exploded view of an oil-gas separation device provided in one embodiment of this utility model; Figure 3 This is a schematic diagram of the structure of a camshaft provided in one embodiment of the present invention; Figure 4 This is a cross-sectional view of a camshaft provided in one embodiment of the present invention; Figure 5 This is a schematic diagram of the assembly of the body and blades according to one embodiment of the present invention. Figure 1 ; Figure 6 This is a schematic diagram of the assembly of the body and blades according to one embodiment of the present invention. Figure 2 ; Figure 7This is a partial sectional view of the body and blades provided in one embodiment of the present invention.

[0028] Figure label: 1. Camshaft; 11. Hollow pipe; 12. Fifth end; 13. Sixth end; 2. Gear; 21. Through hole; 3. Body; 31. Connecting hole; 32. Exhaust channel; 33. Vent hole; 34. Sealing groove; 4. Blade; 41. Air inlet; 42. Oil outlet; 43. First sidewall; 44. Second sidewall; 45. Third sidewall; 46. Fourth sidewall; 5. Sealing ring; 6. Fasteners. Detailed Implementation

[0029] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be particularly noted that the following embodiments are for illustrative purposes only and do not limit the scope of the application. Similarly, the following embodiments are only some, not all, embodiments of the present application, and all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of the present application.

[0030] The terms "first," "second," and "third" used in the embodiments of this application are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified. All directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationships and movement of components in a specific posture (as shown in the figures). If the specific posture changes, the directional indication will also change accordingly. The terms "comprising" and "having," and any variations thereof, in the embodiments of this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or device that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or components inherent to these processes, methods, products, or devices.

[0031] An oil-gas separator includes a camshaft, a gear, a body, and blades. The camshaft has a hollow conduit. The gear is sleeved on and connected to the camshaft, and is used for connection to external equipment. The body is sealed to the gear, and the body and gear are distributed along the axial direction of the camshaft. The blades are connected to the body and protrude radially from the body. The body has an air inlet and an oil outlet communicating with the air inlet, which is connected to the hollow conduit.

[0032] The oil-gas separation device provided by this utility model includes a camshaft, a gear, a body, and blades. The gear is connected to an external device, which drives the gear to rotate. The rotation of the gear drives the body and camshaft connected to it to rotate. The oil-gas mixture enters through the air inlet. Due to the rotation of the body and the blades connected to it, under the action of centrifugal force, the oil-gas mixture is separated into gas and oil. The oil flows out from the oil outlet, and the gas flows out from the hollow pipe. This oil-gas separation device has high separation efficiency, good separation effect, and simple structure.

[0033] like Figure 1 and Figure 2 As shown, in some embodiments, the oil-gas separator includes a camshaft 1, a gear 2, a body 3, and blades 4. The gear 2 is sleeved on and connected to the camshaft 1.

[0034] Specifically, the gear 2 has a through hole 21, and the gear 2 is fitted onto the camshaft 1 through the through hole 21.

[0035] Gear 2 is used to connect to an external device. For example, the external device is the timing gear 2 of the crankshaft. Gear 2 meshes with the timing gear 2 of the crankshaft, and the timing gear 2 of the crankshaft drives gear 2 to rotate.

[0036] In some embodiments, gear 2 is connected to camshaft 1 by an interference fit. Of course, in other embodiments, gear 2 can also be connected to camshaft 1 by welding or bolting.

[0037] In some embodiments, the body 3 is connected to the gear 2. The body 3 and the gear 2 are distributed along the axial direction of the camshaft 1.

[0038] Specifically, the main body 3 is connected to the gear 2 via fastener 6. This detachable connection between the main body 3 and the gear 2 allows the main body 3 to be disassembled for repair or replacement if damaged, reducing the cost of the oil-gas mixing device. Of course, in other embodiments, the gear 2 can also be connected to the main body 3 by welding.

[0039] Optionally, fastener 6 is a bolt.

[0040] In some embodiments, multiple fasteners 6 are provided. The body is connected to the gear via multiple fasteners 6, resulting in a more secure connection.

[0041] For example, fastener 6 is provided with four.

[0042] In some embodiments, the blade 4 is connected to the body 3. The blade 4 protrudes from the body 3 radially.

[0043] Specifically, the blade 4 is integrally formed with the body 3, which is simple to manufacture and eliminates the risk of loosening. Of course, in other embodiments, the blade 4 can also be connected to the body 3 by welding.

[0044] In some embodiments, the body 3 is a cylindrical structure. Of course, in other embodiments, the body 3 can also be configured as a prism structure.

[0045] In some embodiments, the body 3 has an outer wall. The blade 4 is connected to the outer wall.

[0046] In some embodiments, the diameter of the body 3 is smaller than the tip circle diameter of the gear 2.

[0047] In some embodiments, the oil-gas separator further includes a sealing ring 5. The sealing ring 5 is located between the body 3 and the gear 2. The body 3 and the gear 2 are sealed together by the sealing ring 5, which prevents the separated gas from flowing away from the connection between the body 3 and the gear 2.

[0048] like Figure 3 and Figure 4 As shown, the camshaft 1 has a hollow conduit 11. The hollow conduit 11 extends along the axial direction of the camshaft 1. Specifically, the hollow conduit 11 is coaxially arranged with the camshaft 1. The hollow conduit 11 passes through the camshaft 1 along the axial direction of the camshaft 1.

[0049] In some embodiments, the hollow pipe 11 is a channel with a circular cross-section. Of course, in other embodiments, the hollow pipe 11 may also be a channel with an elliptical cross-section.

[0050] like Figure 5 and Figure 6 As shown, in some embodiments, multiple blades 4 are provided. Multiple blades 4 are evenly spaced along the circumference of the body 3 on the outer wall of the body 3. By providing multiple blades 4 evenly spaced along the circumference of the body 3, not only can the separation effect and efficiency be improved, but the rotation of the oil-gas separator can also be made more stable.

[0051] Specifically, there are six blades 4, which are evenly spaced along the axial direction of the body 3 on the outer wall of the body 3. Of course, in other embodiments, there may be two, three, four or more blades 4.

[0052] In some embodiments, the blade 4 has an air inlet 41 and an oil outlet 42. The air inlet 41 communicates with the oil outlet 42. The air inlet 41 is also connected to the hollow pipe 11.

[0053] Specifically, the blade 4 has a first sidewall 43 and a second sidewall 44 opposite to the first sidewall 43. The first sidewall 43 is connected to the outer wall of the body 3. The oil outlet 42 is located on the second sidewall 44. By setting the oil outlet 42 on the second sidewall 44, the separation effect of the oil-gas mixture can be improved, and the oil can flow out from the oil outlet more effectively.

[0054] Specifically, along the axial direction of the body 3, the blade 4 has a third sidewall 45 and a fourth sidewall 46 opposite to the third sidewall 45. The third sidewall 45 is away from the gear 2 relative to the fourth sidewall 46. The air inlet 41 is located on the third sidewall 45. By setting the air inlet 41 on the third sidewall 45, it is convenient for the oil-air mixture to enter the air inlet 41.

[0055] In some embodiments, the second sidewall 44 has a plurality of oil outlet holes 42. The plurality of oil outlet holes 42 are evenly spaced on the second sidewall 44. By providing a plurality of oil outlet holes 42 on the second sidewall 44, the separation efficiency of the oil-gas mixture can be improved.

[0056] In some embodiments, the second sidewall 44 has three oil outlet holes 42. The three oil outlet holes 42 are evenly spaced apart on the second sidewall 44. Of course, in other embodiments, the second sidewall 44 has two, four, or more oil outlet holes 42.

[0057] In some embodiments, the third sidewall 45 has a plurality of air inlets 41. The plurality of air inlets 41 are evenly spaced on the third sidewall 45. By providing a plurality of air inlets 41 on the third sidewall 45, the air intake efficiency can be improved.

[0058] In some embodiments, the third sidewall 45 has nine air inlets 41. The nine air inlets 41 are arranged in a three-row, three-column configuration on the third sidewall 45. Of course, in other embodiments, the third sidewall 45 may also have six air inlets 41. The six air inlets 41 are arranged in a two-row, three-column configuration on the third sidewall 45.

[0059] In some embodiments, the air inlet 41 is a circular hole. Of course, in other embodiments, the air inlet 41 may also be an elliptical hole.

[0060] In some embodiments, the oil outlet 42 is a circular hole. Of course, in other embodiments, the oil outlet 42 may also be an elliptical hole.

[0061] In some embodiments, the body 3 has an exhaust channel 32. The exhaust channel 32 is connected to the hollow pipe 11. Specifically, the exhaust channel 32 and the hollow pipe 11 are coaxially arranged.

[0062] In some embodiments, the exhaust channel 32 is a channel with a circular cross-section. Of course, in other embodiments, the exhaust channel 32 may also be a channel with an elliptical cross-section.

[0063] In some embodiments, a sealing groove 34 is provided on the side of the body 3 near the gear 2. The sealing groove 34 surrounds an exhaust channel 32. A sealing ring 5 is located in the sealing groove 34. By providing the sealing groove 34 and the sealing ring 5, a sealed connection between the body 3 and the gear 2 can be easily achieved, preventing the gas formed during separation from flowing away from the connection between the body 3 and the gear 2.

[0064] Optionally, the sealing ring 5 is a rubber ring.

[0065] In some embodiments, the body 3 is provided with a connecting hole 31. Specifically, the extending direction of the connecting hole 31 is parallel to the axial direction of the body 3.

[0066] In some embodiments, the connecting hole 31 is a circular hole. Of course, in other embodiments, the connecting hole 31 may also be an elliptical hole.

[0067] In some embodiments, multiple connecting holes 31 are provided. Specifically, four connecting holes 31 are provided. Each connecting hole 31 corresponds to a fastener 6. Of course, in other embodiments, two, three, five, or more connecting holes 31 may be provided.

[0068] In some embodiments, a plurality of connection holes 31 are provided to surround a sealing groove 34.

[0069] In some embodiments, gear 2 has a threaded hole. Fastener 6 passes through connection hole 31 and is threadedly connected to gear 2 via threaded hole.

[0070] In some embodiments, multiple threaded holes are provided. Specifically, four threaded holes are provided. The four threaded holes correspond one-to-one with four connecting holes. Of course, in other embodiments, two, three, five, or more threaded holes may be provided.

[0071] In some embodiments, the body 3 has a vent 33. The vent 33 communicates with the hollow pipe 11. The vent 33 extends radially along the body 3. The vent 33 communicates with the oil outlet 42. By providing the vent 33, it is convenient to connect the air inlet 41 with the exhaust channel 32.

[0072] In some embodiments, the vent 33 is a circular hole. Of course, in other embodiments, the vent 33 may also be an elliptical hole.

[0073] In some embodiments, the vent 33 and the oil outlet 42 are coaxially arranged.

[0074] In some embodiments, the diameter of the oil outlet hole 42 is equal to the diameter of the oil outlet hole 42.

[0075] Working principle: An external device drives gear 2 to rotate, which in turn drives camshaft 1 and body 3 connected to it to rotate. Body 3, in turn, drives blade 4 connected to it to rotate. An oil-gas mixture enters the intake port 41 and, under centrifugal force, separates into gas and oil. The oil flows out from the oil outlet 42, which is connected to the intake port 41. The gas enters the exhaust channel 32 from the vent 33, which is also connected to the intake port 41, and then enters the hollow pipe 11, from which it flows out.

[0076] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0077] 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0078] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0079] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0080] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Furthermore, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0081] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An oil-gas separation device, characterized in that, include: Camshaft (1), the camshaft (1) having a hollow pipe (11); Gear (2), the gear (2) is sleeved on the camshaft (1) and connected to the camshaft (1), the gear (2) is used to connect to external equipment; Body (3), said body (3) being sealed to said gear (2), said body (3) and said gear (2) being distributed along the axial direction of said camshaft (1); and The blade (4) is connected to the body (3) and protrudes from the body (3) radially. The blade (4) has an air inlet (41) and an oil outlet (42) communicating with the air inlet (41). The air inlet (41) is connected to the hollow pipe (11).

2. The oil-gas separation device according to claim 1, characterized in that, Along the radial direction of the body (3), the blade (4) has a first sidewall (43) and a second sidewall (44) opposite to the first sidewall (43), the first sidewall (43) being connected to the body (3), and the oil outlet (42) being located on the second sidewall (44).

3. The oil-gas separation device according to claim 2, characterized in that, The second sidewall (44) has a plurality of oil outlet holes (42), which are evenly spaced on the second sidewall (44).

4. The oil-gas separation device according to claim 1, characterized in that, Along the axial direction of the body (3), the blade (4) has a third sidewall (45) and a fourth sidewall (46) opposite to the third sidewall (45), the third sidewall (45) being away from the gear (2) relative to the fourth sidewall (46), and the air inlet (41) being located on the third sidewall (45).

5. The oil-gas separation device according to claim 4, characterized in that, The third sidewall (45) has a plurality of air inlets (41), which are evenly spaced apart on the third sidewall (45).

6. The oil-gas separation device according to claim 1, characterized in that, Multiple blades (4) are provided, and the multiple blades (4) are evenly spaced along the circumference of the body (3).

7. The oil-gas separation device according to claim 1, characterized in that, The main body (3) has an exhaust channel (32), which is connected to the hollow pipe (11). The exhaust channel (32) and the hollow pipe (11) are coaxially arranged, and the exhaust channel (32) is connected to the air inlet (41).

8. The oil-gas separation device according to claim 7, characterized in that, The body (3) has a vent (33) that is connected to the exhaust channel (32) and the oil outlet (42). The vent (33) extends radially along the body (3).

9. The oil-gas separation device according to claim 7, characterized in that, It also includes a sealing ring (5), and a sealing groove (34) is provided on the side of the body (3) near the gear (2), the sealing groove (34) surrounds the exhaust channel (32), and the sealing ring (5) is located in the sealing groove (34).

10. The oil-gas separation device according to claim 1, characterized in that, It also includes a fastener (6), the body (3) has a connecting hole (31), the gear (2) has a threaded hole, and the fastener (6) passes through the connecting hole (31) and is threadedly connected to the gear (2) through the threaded hole.

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