CN212359904U - Oil-gas separator - Google Patents

Abstract

The utility model discloses an oil and gas separator, it includes casing (1) and installs centrifugation subassembly (3) in casing (1), casing (1) includes casing (1a), go up casing (1a) be provided with inlet channel (11), cross gas channel (13) and respectively with inlet channel (11) with separation chamber (12) that gas channel (13) are linked together, centrifuge assembly (3) part is acceptd in separation chamber (12) and with inlet channel (11) are linked together, warp the gaseous entering that inlet channel (11) got into centrifuge assembly (3) filters, and the gaseous entering after the filtration separation chamber (12) and along cross gas channel (13) and discharge. The utility model discloses oil and gas separator's the passageway of admitting air and giving vent to anger is integrated on last casing, has optimized business turn over gas structure, has shortened the passageway distance, and business turn over gas efficiency is higher.

Description

Oil-gas separator

Technical Field

The utility model relates to an automobile engine's crankcase, in particular to oil and gas separator of automobile engine crankcase.

Background

Crankcase blow-by means of the fact that during operation of the engine, a part of combustible mixture and combustion products can blow into the crankcase through the cylinder via the piston rings. When the engine is operating at low temperatures, there may also be liquid fuel leaking into the crankcase. Crankcase blowby is a necessary condition for every engine, regardless of the brand of displacement machine.

At present, the emission standard of pollutants of motor vehicles is more strict, and the gas which flows into a crankcase contains more pollutants, such as engine oil particles, impurities, moisture and the like, so that the gas cannot be directly discharged into the atmosphere. The oil-gas separator is generally used for filtering gas and then discharging the gas in the prior art, but the existing oil-gas separator shell consists of an upper shell, a middle shell and a lower shell, a gas channel is formed on the upper shell and the middle shell, an oil channel is formed on the lower shell and the middle shell, and gas and oil need to enter the upper shell and the lower shell from an inlet of the middle shell, so that the structure of an internal channel is complex, the integration level is low, the production cost is undoubtedly increased, and meanwhile, the filtering and discharging efficiency is lower due to the complexity and the redundancy of pipelines.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned defect among the prior art, provide an oil and gas separator, it has shortened the passageway distance, and business turn over gas efficiency is higher.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: the oil-gas separator comprises a shell and a centrifugal assembly arranged in the shell, wherein the shell comprises an upper shell, the upper shell is provided with a gas inlet channel, a gas passing channel and a separation chamber respectively communicated with the gas inlet channel and the gas passing channel, the centrifugal assembly is partially accommodated in the separation chamber and communicated with the gas inlet channel, gas entering through the gas inlet channel enters the centrifugal assembly to be filtered, and the filtered gas enters the separation chamber and is discharged along the gas passing channel.

Furthermore, the utility model discloses still provide following subsidiary technical scheme: the inlet channel extends partially into the separation chamber, the centrifuge assembly comprising a lamination assembly received within the separation chamber, the lamination assembly having an end that mates with the inlet channel extension, gas entering through the inlet channel entering the lamination assembly along the extension and filtering.

In a preferred embodiment, the inlet duct includes a mating portion extending downwardly into the separation chamber, and the lamination assembly includes an upwardly extending ring portion that shrouds the mating portion.

In a preferred embodiment, a hollow first accommodating cavity is formed in the top of the upper shell, the centrifugal assembly further comprises a rotating shaft driving the centrifugal assembly to rotate, and the upper end of the rotating shaft is rotatably installed in the first accommodating cavity.

In a preferred embodiment, a second bearing coupled with the rotating shaft is fixedly arranged in the first accommodating cavity.

In a preferred embodiment, the oil-gas separator further comprises a lower shell matched with the upper shell, and a support disc assembly for partitioning the separation chamber and the internal space of the lower shell is fixedly arranged between the upper shell and the lower shell.

In a preferred embodiment, the supporting disk assembly comprises a supporting disk and a mounting seat mounted on the supporting disk, the centrifugal assembly comprises a rotating shaft driving the centrifugal assembly to rotate, and the rotating shaft penetrates through the mounting seat and is matched and connected with the lower shell.

In a preferred embodiment, a first bearing coupled with the rotating shaft is fixedly arranged in the mounting seat.

In a preferred embodiment, the side wall of the mounting seat is provided with a plurality of oil return grooves, and oil impurities filtered by the lamination assembly fall into the supporting disc and flow into the lower shell along the oil return grooves.

In a preferred embodiment, the lamination assembly comprises an upper lamination cover, a lower lamination cover and a plurality of laminations positioned between the upper lamination cover and the lower lamination cover, the upper lamination cover comprises a sleeve part with convex teeth, and the lower lamination cover is sleeved on the sleeve part and correspondingly provided with clamping grooves matched with the convex teeth.

Compared with the prior art, the utility model has the advantages of: 1. the upper shell of the oil-gas separator is integrated with an air inlet channel, an air passing channel and a separation chamber which is respectively communicated with the air inlet channel and the air passing channel, wherein the centrifugal component part is accommodated in the separation chamber and is communicated with the air inlet channel;

2. the gas inlet channel of the oil-gas separator comprises a matching part extending downwards into the separation chamber, the lamination assembly of the centrifugal assembly is correspondingly provided with a ring part matched and connected with the matching part, and gas entering through the gas inlet channel can enter the lamination assembly along the matching part and the ring part for filtering;

3. the top of the upper shell of the oil-gas separator is provided with a hollow first accommodating cavity, and a bearing matched and connected with the rotating shaft is arranged in the first accommodating cavity, so that the rotating shaft can rotate more smoothly;

4. the upper end part of the rotating shaft of the oil-gas separator is connected with the gland, and the gland is abutted against the bearing, so that the second bearing is fixed, and the stability of the rotating shaft is improved;

5. the supporting disc component which separates the internal space of the separating chamber and the internal space of the lower shell is arranged between the upper shell and the lower shell of the oil-gas separator, so that the oil-gas channeling is avoided when the oil-gas separator works;

6. the bearing matched with the rotating shaft is arranged on the supporting disc component of the oil-gas separator, so that the rotating stability and the smoothness of the rotating shaft are further improved;

7. the utility model discloses oil and gas separator's supporting disk subassembly's mount pad has seted up the oil gallery, and the fluid impurity after the lamination subassembly filters can flow in down the casing along the oil gallery.

8. The utility model discloses oil and gas separator's cover portion of lamination upper cover is provided with the dogtooth, and the lamination lower cover is provided with the draw-in groove that connects with the dogtooth and join in marriage, makes the lamination lower cover establish more inseparabler in the time of in cover portion.

Drawings

Fig. 1 is a schematic view of the whole structure of the oil-gas separator of the present invention.

Fig. 2 is a schematic structural diagram of the oil-gas separator of the present invention.

Fig. 3 is a schematic structural view of the oil separator of fig. 1 in another direction.

Fig. 4 is a sectional view in the direction a-a of the oil separator of fig. 3.

Fig. 5 is a sectional view in the direction B-B of the oil separator of fig. 3.

Fig. 6 is a sectional view in the direction of C-C of the oil separator of fig. 4.

Fig. 7 is a partially enlarged view at the oil separator F of fig. 4.

Fig. 8 is a partially enlarged view at the oil separator G of fig. 4.

Fig. 9 is a schematic top view of the upper housing of the oil-gas separator of the present invention.

Fig. 10 is a sectional view in the direction of D-D of the upper housing of fig. 9.

Fig. 11 is a schematic plan view of the lower housing of the oil-gas separator of the present invention.

Fig. 12 is a sectional view in the direction of E-E of the lower casing of fig. 11.

Fig. 13 is a schematic structural diagram of the plug of the oil-gas separator of the present invention.

Fig. 14 is a schematic top view of the support disc assembly of the gas-oil separator of the present invention.

Fig. 15 is a schematic structural diagram of the lamination of the oil-gas separator of the present invention.

Fig. 16 is a schematic structural diagram of the lamination upper cover of the oil-gas separator of the present invention.

Fig. 17 is a schematic structural diagram of the lower lamination cover of the oil-gas separator of the present invention.

Detailed Description

The following non-limiting detailed description of the present invention is provided in connection with the preferred embodiments and accompanying drawings.

As shown in fig. 1 and 2, the oil-gas separator according to a preferred embodiment of the present invention includes a housing 1, a supporting plate assembly 2 installed in the housing 1, a centrifugal assembly 3, and a driving member 4 connected to the centrifugal assembly 3.

As shown in fig. 4 and 5, the housing 1 includes an upper housing 1a and a lower housing 1b, and the upper housing 1a and the lower housing 1b are connected by bolts. Preferably, the upper case 1a is formed by injection molding, and the lower case 1b is formed by aluminum die casting.

An air inlet channel 11, a separation chamber 12 and a gas passing channel 13 are formed in the upper shell 1a, and the separation chamber 12 is respectively communicated with the air inlet channel 11 and the gas passing channel 13. As shown in fig. 9 and 10, the intake passage 11 includes an intake port 11a communicating with the outside and a fitting portion 11b extending downward into the separation chamber 12, the fitting portion 11b has a circular ring-shaped cross section, and the crankcase exhaust gas enters the intake passage 11 through the intake port 11a and is introduced into the separation chamber 12 through the fitting portion 11 b. The air passage 13 comprises an opening end 13a communicated with the outside, and the air separated and filtered by the oil-gas separator can be discharged from the opening end 13 a.

Preferably, the upper case 1a is further provided with a gas discharge passage 14 and a pressure regulating valve 5 in order to regulate the gas pressure and prevent the gas from flowing backward outside the open end 13 a. Specifically, the exhaust channel 14 is partially located inside the air passing channel 13 and communicated with the air passing channel 13, and a plurality of ribs 15 are arranged between the air passing channel 13 and the exhaust channel 14 to increase the structural strength. The exhaust passage 14 includes an exhaust port 14a located outside the gas passing passage 13 and communicating with the outside, and the gas separated and filtered by the oil-gas separator is discharged from the exhaust port 14a after passing through the gas passing passage 13 and the exhaust passage 14.

The pressure regulating valve 5 is provided at the open end 13a of the air passage 13, and as shown in fig. 7, the pressure regulating valve 5 includes an end cap 50 connected to the open end 13a, a rubber film 51 sealing the open end 13a, and a spring 52 interposed between the rubber film 51 and the rib 15. The end cap 50 is snap-fit connected to the open end 13a, which compresses the rubber membrane 51 against the open end 13 a. The rubber membrane 51 has certain elasticity, the middle part of the rubber membrane has pressing force towards the exhaust passage 14, and the pressing force is greater than the pushing force of the spring 52, so that the rubber membrane 51 presses and seals the exhaust passage 14 under normal conditions, and external air is prevented from flowing back into the oil-gas separator; when the gas pressure in the gas-oil separator increases, the gas pushes away the middle portion of the rubber film 51, so that the gas in the gas-oil separator can be discharged after passing through the exhaust passage 14. The pressure regulating valve 5 keeps the gas pressure in the crankcase within a safe range.

In addition, a hollow first accommodating cavity 10 is arranged at the top of the upper shell 1a, a first shoulder 10a protruding inwards is arranged on the inner wall of the first accommodating cavity 10, and the first shoulder 10a is of an annular structure.

As shown in fig. 3, 5, 11 and 12, the lower housing 1b is formed with an oil inlet passage 16, a fixing seat 17 and an inner cavity 18 inside. The oil inlet passage 16 includes an oil inlet 16a communicated with the outside, and the oil inlet 16a is connected with a pressure source, specifically, an oil pump of the engine. The oil inlet 16a is selectively adjustable during the machining process according to the specific engine, in this embodiment, the oil inlet 16a is located above the lower housing 1b, and the oil inlet passage 16 is arranged in a substantially z-shape and includes a first horizontal section 16b, a vertical section 16c and a second horizontal section 16 d. Since the lower casing 1b is manufactured by a die casting process, in order to facilitate processing and ensure smooth molding of the oil inlet channel 16 in the die casting process, process holes 16e exist at the end portions of the vertical section 16c and the second horizontal section 16d, and at this time, in order to prevent oil from leaking out of the lower casing 1b, plugs 6 are arranged at the positions of the process holes 16e so as to plug the process holes 16e, and the structure of the plugs 6 is as shown in fig. 13.

The fixed seat 17 is positioned in the inner cavity 18, and the fixed seat 17 comprises a plug-in part 17a and an oil guide part 17b connected with the plug-in part 17 a. The insertion portion 17a has a circular tubular structure, and an annular second shoulder portion 17c projects inwardly from a bottom portion of an inner wall thereof. The oil guiding part 17b is a cavity structure with an open upper end and a closed lower end, the upper end of the oil guiding part 17b is communicated with the inserting part 17a, the second horizontal section 16d of the oil inlet channel 16 is communicated with the cavity of the oil guiding part 17b, and pressure oil entering from the oil inlet 16a enters the oil guiding part 17b along the oil inlet channel 16.

In addition, an annular third shoulder 1c projects inwardly from the inner wall of the lower case 1b near the upper end. The bottom of the lower shell 1b is also provided with an oil return port 19 communicated with the inner cavity 18, and the oil return port 19 is communicated with an engine oil return tank to enable oil in the inner cavity 18 to flow back to the oil return tank of the engine.

As shown in fig. 4, 8 and 14, the support disc assembly 2 is installed between the upper casing 1a and the lower casing 1b and blocks the separation chamber 12 of the upper casing 1a from the inner cavity 18 of the lower casing 1b, and the support disc assembly 2 includes a support disc 21, a mounting seat 22 and a first bearing 23. The supporting disc 21 is set up on the third shoulder 1c of the lower casing 1b, when the upper casing 1a and the lower casing 1b are installed, the bottom of the upper casing 1a extends into the inner cavity 18 of the lower casing 1b, an installation gap for accommodating the supporting disc 21 is left between the bottom of the upper casing 1a and the third shoulder 1c of the lower casing 1b, and the upper end face and the lower end face of the supporting disc 21 are respectively abutted against the upper casing 1a and the lower casing 1 b.

The supporting disk 21 is provided with a mounting hole 21a in the middle, and the side of the mounting seat 22 is embedded in the mounting hole 21 a. The mounting seat 22 is a hollow structure, and includes a mounting seat upper portion 22a located above the supporting disk 21 and a mounting seat lower portion 22b located below the supporting disk 21, the cross section of the mounting seat upper portion 22a is annular, a plurality of oil return grooves 22c are formed in the side surface of the mounting seat upper portion along the circumferential direction, and the bottoms of the oil return grooves 22c are the same as or slightly lower than the height of the supporting disk 21.

The lower portion 22b of the mounting seat is provided with a second receiving chamber 22d, the bottom inner wall of which is projected inward with a fourth shoulder 22e having an annular shape, and the first bearing 23 is fitted into the second receiving chamber 22d from the upper portion 22a of the mounting seat and fixed. The first bearing 23 is preferably a ball bearing. The separated oil impurities drop on the support disc 21 and flow into the inner cavity 18 along the gaps between the balls of the first bearing 23 through the oil return grooves 22 c.

Preferably, in order to fix the first bearing 23, the support plate assembly 2 further includes a bearing cover plate 24 mounted on the upper portion 22a of the mounting seat and abutting against the first bearing 23. The bearing cover plate 24 is formed in a hollow circular boss shape as a whole, and includes a mounting portion 24a detachably connected to the mounting seat upper portion 22a and an abutting portion 24b protruding from the mounting portion 24 a. A plurality of mounting lugs 22f are formed in the side face of the upper portion 22a of the mounting seat along the circumferential direction, the mounting lugs 22f are staggered with the oil return grooves 22c, threaded holes are formed in the mounting lugs 22f, threaded holes matched with the mounting lugs 22f are correspondingly formed in the mounting portion 24a of the bearing cover plate 24, and threaded fasteners (not shown) penetrate through the mounting portion 24a and the mounting lugs 22f to fix the bearing cover plate 24. The abutting portion 24b extends into the second accommodating chamber 22d and abuts against the end face of the first bearing 23 to fix the first bearing 23.

As shown in fig. 4, the centrifugal module 3 includes a rotating shaft 7 and a lamination module 8 attached to the rotating shaft 7, the lamination module 8 is accommodated in the separation chamber 12, and the rotating shaft 7 extends from the first accommodating chamber 10 to the inner chamber 18 through a first bearing 23.

As shown in fig. 5, the lamination assembly 8 includes a lamination upper cover 81, a lamination lower cover 82, and a plurality of laminations 83 disposed between the lamination upper cover 81 and the lamination lower cover 82 and stacked on each other.

As shown in fig. 15 to 17, the lamination upper cover 81 includes a ring portion 81a extending upward and ribs 81b provided along the circumferential direction of the lamination upper cover 81, and the ring portion 81a is covered outside the fitting portion 11b, so that the gas in the intake passage 11 enters the lamination 83 through the gaps between the ribs 81b of the lamination upper cover 81. The upper cover 81 further includes a sleeve portion 81c injection-molded on the shaft 7, the sleeve portion 81c has a polygonal cross-section, and the lamination 83 is fitted over the sleeve portion 81 c. Accordingly, the inner ring 83a of the lamination 83 is provided with an inner hole 83b fitted with the boss portion 81c to enable the lamination 83 and the lamination upper cover 81 to rotate synchronously.

The lamination sheets 83 include wing plate portions 83c arranged obliquely and tie bars 83d connected between the wing plate portions 83c and the inner rings 83a, and the lamination sheets 83 are stacked neatly such that cavities 83e through which the airflow passes are formed between the tie bars 83 d. The surface of the wing plate portion 83c is provided with a plurality of ribs 83f in the radial direction, and the ribs 83f are used for generating a small gap between the two laminated sheets 83 so as to facilitate the air flow to pass through. Preferably, the laminations 83 are made of stainless steel sheet, having a thickness not exceeding 0.5 mm; the thickness of the ribs 83f does not exceed 0.5 mm.

The lamination lower cover 82 is sleeved on the sleeve portion 81c, and includes a sleeve portion 82a located in the middle of the lamination lower cover 82, and the sleeve portion 82a is of a hollow cylindrical structure. Preferably, in order to improve the connection tightness, a plurality of convex teeth 81d are arranged on the outer wall of the sleeve portion 81c, a plurality of clamping grooves 82b are arranged on the sleeve portion 82a along the circumferential direction, the clamping grooves 82b are arranged along the axial direction, the clamping grooves 82b are matched and connected with the convex teeth of the sleeve portion 81c, and when the lamination lower cover 82 is sleeved on the sleeve portion 82c, the convex teeth of the sleeve portion 82c are inserted into the clamping grooves 82b, so that the circumferential rotation of the lamination lower cover 82 is limited, and the connection tightness is improved.

The lamination lower cover 82 is a sealing structure as a whole, so that gas can flow out only from the gaps between the stacked laminations 83, impurities in the gas are attached to the wing portions 83c of the laminations 83 when the lamination assembly 8 rotates at a high speed and are thrown off the wing portions 83c by a high-speed centrifugal force, and the separated clean gas is discharged out of the gas-oil separator through the gas passing passage 13 and the gas discharge passage 14. Since the vane portion 83c is inclined obliquely downward, the thrown-off impurities can be reliably separated from the clean gas at a high speed by the centrifugal force, and are not easily remixed.

As shown in fig. 4, a second bearing 9 is disposed between the rotating shaft 7 and the first receiving chamber 10, and the second bearing 9 is preferably a ball bearing. Specifically, the second bearing 9 is disposed on a first shoulder 10a of the first accommodating cavity 10, an axial threaded hole 7a is formed in the upper end of the rotating shaft 7, a gland 71 in threaded connection with the upper end of the rotating shaft 7 is arranged at the upper end of the rotating shaft 7, the diameter of the gland 71 is larger than that of the rotating shaft 7, and the second bearing 9 is abutted between the gland 71 and the first shoulder 10a, so that the second bearing 9 is fixed and the downward position of the rotating shaft 7 is limited. By providing the second bearing 9, the rotation shaft 7 can be smoothly rotated.

The lower end of the rotating shaft 7 is rotatably inserted into the insertion part 17a, and the bottom thereof extends into the oil guide part 17 b. The rotating shaft 7 is provided with a blind hole 7b along the axial direction from the bottom, and oil can enter the blind hole 7b from the oil guide part 17 b. Preferably, in order to protect the rotating shaft 7 and improve the sealing effect of the oil guide 17b, a sealing bushing 72 is disposed between the rotating shaft 7 and the insertion part 17a, the sealing bushing 72 is located on the second shoulder 17c, and prevents the pressure oil from leaking out of the oil guide 17b along the insertion part 17 a.

Preferably, the rotating shaft 7 is sleeved with an elastic member 73, and both ends of the elastic member 73 abut between the bearing cover plate 24 and the lamination lower cover 82, so as to further improve the compression effect of the lamination 83.

In addition, as shown in fig. 2, a through hole 7c for communicating the blind hole 7b with the driver 4 is radially opened in the rotary shaft 7.

The driving piece 4 is fixedly connected to the bottom of the rotating shaft 7 and is provided with two extension arms 41 which are respectively positioned on two sides of the rotating shaft 7, the extension arms 41 are provided with a nozzle 42 and an oil spraying pipeline 43 communicated with the nozzle 42, the oil spraying pipeline 43 is communicated with the through hole 7c, oil entering from the oil inlet 16a enters the oil spraying pipeline 43 after entering the blind hole 7b and is sprayed out through the nozzle 42, the reaction force generated by oil flow spraying pushes the driving piece 4 and the rotating shaft 7 connected with the driving piece to rotate at a high speed, so that the lamination assembly 8 is driven to rotate at a high speed, and the oil-gas mixture is. The oil ejected through the nozzle 42 flows out from the oil return port 19.

The utility model discloses an oil and gas separator during operation, pressure oil gets into from oil inlet 16a, and the gas that has the pollutant gets into from air inlet 11a, and pressure oil passes through oil feed passageway 16a in proper order, leads oil portion 17b, and from nozzle 42 blowout behind blind hole 7b and the oil spout pipeline 43, and the reaction force that high-pressure fluid blowout produced orders about pivot 7 and connects the high-speed rotation of lamination subassembly 8 in pivot 7, and spun fluid gathering is in 18 bottoms of inner chamber and through oil return 19 outflow.

The gas with the pollutants sequentially passes through the gas inlet channel 11, the channel formed by the matching part 11b and the ring part 81a and enters the cavity 83e, and when the gas passes through the tiny gaps generated by the ribs 83f among the laminated sheets 83, the pollutants carried by the gas, such as engine oil particles, impurities and the like, are attached to the laminated sheets 83 and are thrown off at a high speed. The clean gas filtered of the contaminants floats upward and is discharged from the exhaust port 14a after passing through the gas passage 13 and the exhaust passage 14 in sequence. The thrown impurities fall onto the support plate 21 and flow into the inner cavity 18 along the gaps between the balls of the first bearing 23 through the oil return grooves 22 a.

The utility model has the advantages that: 1. the utility model discloses oil and gas separator's last casing integration has inlet channel, cross the gas channel and the separation chamber that is linked together with inlet channel and gas channel respectively, wherein the inlet channel part extends into the separation chamber, centrifugal assembly's lamination subassembly holds in the separation chamber and communicates with inlet channel's extension portion, treat that the filtration gas enters lamination subassembly and filters by inlet channel, the gas after the filtration is discharged through separation chamber and gas channel, inlet channel and gas outlet channel are integrated on last casing, the business turn over gas structure has been optimized, the passageway distance has been shortened, business turn over gas efficiency is higher;

2. the utility model discloses oil and gas separator's lower casing is integrated to have oil feed passageway, fixing base and inner chamber, and wherein the oil feed passageway is linked together with the fixing base, and the pivot is inserted and is established in the fixing base, and the driving piece is connected in the pivot and is located the inner chamber, and pressure oil flows into the driving piece through oil feed passageway, fixing base, pivot to spout by the nozzle of driving piece, thereby order to order about the pivot to rotate, and the business turn over oil is whole to be integrated on lower casing, has optimized business turn over oil structure, has shortened the passageway distance, and business turn over oil;

3. the supporting disc component for separating the separation chamber from the inner cavity is fixedly arranged between the upper shell and the lower shell of the oil-gas separator, so that oil-gas channeling is avoided when the oil-gas separator works;

4. the utility model discloses be provided with the bearing on oil and gas separator's the supporting disk subassembly, the pivot is worn to establish in the bearing, when improving pivot pivoted stability and smoothness nature, also can do the adaptability adjustment to the countershaft axial position.

It should be noted that the above-mentioned preferred embodiments are only for illustrating the technical concepts and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention accordingly, and the protection scope of the present invention cannot be limited thereby. All equivalent changes and modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims (10)

1. An oil and gas separator comprising a housing (1) and a centrifugal assembly (3) mounted within the housing (1), the housing (1) comprising an upper housing (1a), characterized in that: the upper shell (1a) is provided with an air inlet channel (11), an air passing channel (13) and a separation chamber (12) communicated with the air inlet channel (11) and the air passing channel (13) respectively, the centrifugal component (3) is partially accommodated in the separation chamber (12) and communicated with the air inlet channel (11), air entering through the air inlet channel (11) enters the centrifugal component (3) to be filtered, and the filtered air enters the separation chamber (12) and is discharged along the air passing channel (13).

2. Oil separator according to claim 1, characterized in that: the inlet channel (11) extends partly into the separation chamber (12), the centrifuge assembly (3) comprising a lamination assembly (8) housed inside the separation chamber (12), the end of the lamination assembly (8) being fitted with an extension of the inlet channel (11), along which the gas entering through the inlet channel (11) enters the lamination assembly (8) to be filtered.

3. An oil separator as in claim 2, wherein: the inlet channel (11) comprises a fitting (11b) extending downwards into the separation chamber (12), and the lamination assembly (8) comprises an upwardly extending ring portion (81a), the ring portion (81a) being housed outside the fitting (11 b).

4. Oil separator according to claim 1, characterized in that: go up casing (1a) top and be provided with hollow first chamber (10) that holds, centrifugal component (3) still include drive its pivoted pivot (7), the rotatable installation of upper end of pivot (7) in first chamber (10) that holds.

5. Oil separator according to claim 4, characterized in that: and a second bearing (9) matched and connected with the rotating shaft (7) is fixedly arranged in the first accommodating cavity (10).

6. An oil separator as in any one of claims 1 to 5, wherein: the oil-gas separator also comprises a lower shell (1b) matched and connected with the upper shell (1a), and a support plate assembly (2) for isolating the separation chamber (12) and the inner space of the lower shell (1b) is fixedly arranged between the upper shell (1a) and the lower shell (1 b).

7. An oil separator as in claim 6 wherein: the supporting disc assembly (2) comprises a supporting disc (21) and a mounting seat (22) mounted on the supporting disc (21), the centrifugal assembly (3) comprises a rotating shaft (7) driving the centrifugal assembly (3) to rotate, and the rotating shaft (7) penetrates through the mounting seat (22) and is connected with the lower shell (1b) in a matching mode.

8. An oil separator as in claim 7, wherein: and a first bearing (23) matched and connected with the rotating shaft (7) is fixedly arranged in the mounting seat (22).

9. An oil separator as in claim 7 or 8, wherein: a plurality of oil return grooves (22c) have been seted up to mount pad (22) lateral wall, and the fluid impurity after lamination subassembly (8) filters falls into supporting disk (21) and along oil return groove (22c) flow in casing (1b) down.

10. An oil separator as in claim 2 or 3, wherein: the lamination assembly (8) comprises an upper lamination cover (81), a lower lamination cover (82) and a plurality of laminations (83) located between the upper lamination cover (81) and the lower lamination cover (82), the upper lamination cover (81) comprises a sleeve portion (81c) with convex teeth (81d), and the lower lamination cover (82) is sleeved on the sleeve portion (81c) and is correspondingly provided with a clamping groove (82b) matched and connected with the convex teeth (81 d).

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