CN210440098U

CN210440098U - Electromagnetic oil-gas separator

Info

Publication number: CN210440098U
Application number: CN201921003333.4U
Authority: CN
Inventors: 蒋海军
Original assignee: Nanjing Blue Oxygen Filtration Environmental Protection Technology Co Ltd
Current assignee: Nanjing Blue Oxygen Filtration Environmental Protection Technology Co Ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-05-01
Anticipated expiration: 2029-07-01

Abstract

The utility model discloses an electromagnetic oil-gas separator, which comprises a shell, a driving component and a centrifugal component; the shell is provided with an air inlet and an air outlet; drive assembly is including installing driving motor in the shell, the last pivot that is equipped with of driving motor, centrifugal assembly includes a plurality of laminations that pile up, the lamination is connected in the pivot, the driving motor drive the pivot rotates and drives lamination synchronous revolution, certainly the gaseous process that the air inlet got into follow after the lamination filters the gas vent is discharged. The utility model discloses a driving motor drive lamination is rotatory, and the lamination rotational speed is higher, can separate the pollutant of smaller granule from gaseous under the effect of centrifugal force for the gas that discharges away is more clean.

Description

Electromagnetic oil-gas separator

Technical Field

The utility model relates to an automobile engine's crankcase, in particular to electromagnetic type 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 the 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. In the prior art, an oil-gas separator is generally used for filtering gas and then discharging the filtered gas, the filtering requirement on the oil-gas separator is higher and higher under the condition that the pollutant discharge standard of a motor vehicle is stricter, and the traditional oil-gas separator is more difficult to meet the requirement of environmental protection.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to the above-mentioned defect among the prior art, provide an electromagnetic type oil and gas separator, it can be more effective gas that is mingled with the pollutant in the filtration crankcase, more for the environmental protection.

In order to realize the purpose of the utility model, the utility model adopts the following technical scheme: an electromagnetic oil-gas separator comprises a shell, a driving assembly and a centrifugal assembly; the shell is provided with an air inlet and an air outlet; drive assembly is including installing driving motor in the shell, the last pivot that is equipped with of driving motor, centrifugal assembly includes a plurality of laminations that pile up, the lamination is connected in the pivot, the driving motor drive the pivot rotates and drives lamination synchronous revolution, certainly the gaseous process that the air inlet got into follow after the lamination filters the gas vent is discharged.

Furthermore, the utility model discloses still provide following subsidiary technical scheme: the shell comprises an upper cover, a lower cover and a mounting shell connected between the upper cover and the lower cover.

The mounting shell is internally provided with a first inner cavity for accommodating the driving motor, a fairing is clamped in the first inner cavity, and the lamination is accommodated in the fairing.

The driving motor further comprises a machine shell, a stator arranged in the machine shell and a rotor matched and connected in the stator, and the rotating shaft is connected to the rotor.

The top of the shell is in interference fit in the upper cover.

And a mounting column is fixed on the stator, and a control circuit board for controlling the driving motor is mounted on the mounting column.

The lower cover is clamped at the bottom of the mounting shell, and the shell further comprises a fastener connected between the lower cover and the mounting shell.

The mounting shell is provided with a threaded matching part and a clamping part, the lower cover is clamped with the clamping part, and the fastening piece is abutted against the lower end face of the lower cover and is in threaded connection with the inside of the threaded matching part.

The clamping portion is matched with the lower cover to form a second inner cavity, and an air inlet channel and an oil return hole which are communicated with the first inner cavity and the second inner cavity are formed in the clamping portion.

The air inlet is opened cover down and is covered, cover down and still be equipped with the oil outlet, gaseous warp the air inlet enters into in the second inner chamber, the waste oil of separating flows out outside the separator through the oil outlet.

Compared with the prior art, the utility model has the advantages of: 1. the oil-gas separator of the utility model is provided with the rotating shaft and the lamination sleeved on the rotating shaft, the rotating shaft and the lamination are driven to rotate by the driving motor, and when the gas with pollutants passes through the lamination, the pollutants are separated from the gas under the action of centrifugal force, so that the discharged gas is cleaner and more environment-friendly;

2. the utility model discloses a stackable lamination design, the clearance between the lamination is less than 0.5mm, the lamination that piles up rotates at a high speed under the drive of motor, and filtration efficiency is high with the filter fineness to the tiny particle, and motor speed can reach 15000 to 20000 commentaries on classics/minute, can reach 100% to the filter fineness of the tiny particle of 0.4 ~ 0.5 micron;

3. the utility model discloses installation casing bottom detachable is connected with the lower cover, and the lower cover is used for being connected with the engine cooperation, and the lower cover is equipped with air inlet and the oil-out that communicates mutually with the installation casing, and in actual production, to the engine of isostructure, corresponding adjustment can be done to air inlet and oil-out, need not to change the installation casing, practices thrift manufacturing cost.

Drawings

Fig. 1 is a cross-sectional view of the electromagnetic oil-gas separator of the present invention.

Fig. 2 is a partially enlarged view of the electromagnetic oil-gas separator a in fig. 1.

Fig. 3 is a schematic structural diagram of the electromagnetic oil-gas separator of the present invention.

Fig. 4 is a schematic structural diagram of the electromagnetic oil-gas separator in another direction in fig. 3.

FIG. 5 is a cross-sectional view at B-B of the electromagnetic oil and gas separator of FIG. 4.

Fig. 6 is a schematic structural diagram of the mounting housing of the electromagnetic oil-gas separator of the present invention.

Fig. 7 is a bottom schematic view of the mounting housing of fig. 6.

Fig. 8 is a cross-sectional view of the electromagnetic oil-gas separator according to another aspect of the present invention.

Fig. 9 is a partially enlarged view at the electromagnetic oil separator C of fig. 8.

Fig. 10 is a schematic structural diagram of a separating assembly of the electromagnetic oil-gas separator of the present invention.

Fig. 11 is a front view of the separator assembly of fig. 10.

Fig. 12 is a bottom schematic view of the separator assembly of fig. 10.

Fig. 13 is a schematic view of the structure of the laminations of the separator assembly of fig. 10.

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, the electromagnetic oil-gas separator according to a preferred embodiment of the present invention includes a housing 1, a centrifugal assembly 3 installed in the housing 1, and a driving assembly 2 for driving the centrifugal assembly 2.

Referring further to fig. 1 to 3, the housing 1 includes an upper cover 11, a lower cover 13, and a mounting case 12 connected between the upper cover 11 and the lower cover 13, the upper cover 11 and the mounting case 12 are connected by bolts 14, and the lower cover 13 is coupled to the mounting case 12 by a fastener 15. The upper cover 11, the mounting housing 12 and the lower cover 13 are all formed by an aluminum die-casting process. Specifically, the upper cover 11 is partially embedded in the installation housing 12, a first installation space 113 is formed in the upper cover 11, a first installation groove 111 is formed in a contact position of the upper cover 11 and the inner wall of the installation housing 12, a first sealing ring 112 is embedded in the first installation groove 111, and the first sealing ring 112 is extruded with the inner wall of the installation housing 12, so that the sealing performance between the upper cover 11 and the installation housing 12 is improved. The bottom of the mounting housing 12 is provided with a screw-fitting portion 121 and a clamping portion 122 integrally formed with the mounting housing 12, and the screw-fitting portion 121 includes a screw hole 1211 and a second mounting space 1212 located above the screw hole 1211. As shown in fig. 7, the bottom of the clamping portion 122 is provided with an air inlet passage 123 and an oil return hole 124 distributed along the circumferential direction. The lower cover 13 is fitted between the snap portion 122 and the fastener 15. The fastener 15 is preferably a threaded cap, although bolts or other threaded fasteners may be used in other embodiments. The fastener 15 includes a threaded rod 151 threadedly coupled to the threaded mating portion 121 and a ledge 152 abutting the lower end surface 131 of the lower cover 13. Preferably, the clamping portion 122 is provided with a second mounting groove 1221, a second sealing ring 1222 is embedded in the second mounting groove 1221, and the second sealing ring 1222 is extruded with the lower cover 13. The lower end surface 131 of the lower cover 13 is provided with a third mounting groove 132, a third sealing ring 133 is embedded in the third mounting groove 132, and the third sealing ring 133 and the convex edge 152 are extruded mutually, so that the sealing performance between the lower cover 13 and the mounting shell 12 is effectively ensured.

With further reference to fig. 1, 3-7, a first interior chamber 125 and an exhaust port 126 are provided within the mounting housing 12. The first inner cavity 125 is provided with a fairing 16, and the fairing 16 is clamped on the inner wall of the top of the mounting shell 12 through a clamping pin 161. The clamping portion 122 of the mounting housing 12 cooperates with the lower cover 13 to form the second inner cavity 17, the lower cover 13 is provided with an air inlet 134 and an oil outlet 135, the air inlet 134 is communicated with the air inlet passage 123, and the oil outlet 135 is communicated with the oil return hole 124. The air intake 134 is connected to an open cross-ventilation port of the engine crankcase, and may be mounted directly to the engine or may be mounted via a conduit. The mixed gas containing the pollutants enters the second inner cavity 17 through the gas inlet 134 and enters the first inner cavity 125 along the gas inlet channel 123 in the second inner cavity 17, and the gas in the first inner cavity 125 is separated and filtered by the centrifugal component 2 and then is discharged through the gas outlet 126; the waste oil separated and filtered falls into the oil return hole 124 and is collected to the oil outlet 135 to be discharged.

With further reference to fig. 1, 5 and 8, the drive assembly 2 includes a drive motor 21 and a control circuit board 22 mounted on the drive motor 21. The driving motor 21 is preferably a permanent magnet motor, and includes a housing 211, a stator 212, a rotor 213, and a rotation shaft 215. The top of the housing 211 is interference fit with the bottom of the upper cover 11. The stator 212 is tightly pressed and fixed in the machine shell 211 through screws, the stator 212 is provided with mounting columns 214, the tops of the mounting columns 214 are connected with the upper cover 11, and the number of the mounting columns 214 is four in the embodiment and the mounting columns are uniformly distributed around the stator 212. The rotor 213 is installed in the stator 212 and fixed on the rotating shaft 215. The control circuit board 22 is installed on the top of the mounting post 214 and partially embedded in the upper cover 11, the control circuit board 22 is connected with a wiring terminal 23, the wiring terminal 23 is arranged in the upper cover 11 and is provided with a socket end 231 connected with an external power supply, and the side surface of the upper cover 11 is provided with a mounting port matched with the socket end 231. The two ends of the rotating shaft 215 extend into the upper cover 11 and the second inner cavity 17, respectively. The bearings 18 are fixedly disposed in the first mounting space 113 of the upper cover 11 and the second mounting space 1212 of the threaded portion 121, and the rotating shaft 215 is fixedly disposed in the bearings 18. The bearing 18 is preferably a powder metallurgy bearing which at the same time is capable of functioning as a seal. In addition, the rotating shaft 215 is further sleeved with a first pressing spring 216, the first pressing spring 216 is located between the rotor 123 and the bearing 18 in the first installation space 113, and the first pressing spring 216 can provide pre-pressure for the bearing 18 to eliminate an axial gap.

With further reference to fig. 10 to 13, the centrifugal assembly 3 is attached to the rotating shaft 215 and is accommodated in the fairing 16, and includes a lamination upper cover 31, a lamination lower cover 32, and a plurality of laminations 33 stacked on each other and disposed between the lamination upper cover 31 and the lamination lower cover 32. The upper cover 31 of the lamination is provided with a first sleeve part 311 fixedly connected with the rotating shaft 215, a second pressing spring 217 is arranged between the upper cover 32 of the lamination and the rotor 123, the second pressing spring 217 can limit the position of the centrifugal assembly 3 on the rotating shaft 215, and meanwhile, the first pressing spring 216 and the second pressing spring 217 are matched together to play a role in buffering the axial movement of the rotor 123, so that the disorder of the axial displacement formed by the rotor 123 in the operation process is greatly weakened, and the noise reduction of the motor is realized. The lamination lower cover 32 comprises a second sleeve portion 321 formed on the rotating shaft 215 in an injection molding mode, a plurality of through holes 322 evenly distributed in the circumferential direction are formed in the bottom of the lamination lower cover 32, and the mixed gas enters the lamination 33 through the air inlet channel 123 along the through holes 322. The lamination 33 includes a wing plate portion 331 arranged obliquely and an inner ring 332 fitted to the rotary shaft 215, and the lamination 33 is fixedly fitted on the rotary shaft 215 by the inner ring 332. Preferably, the outer contour of the lamination inner ring 332 is provided with a plurality of grooves 3321 extending outwards, and the sleeve portion of the lamination upper cover 31 and/or the lamination lower cover 32 can be provided with a convex portion (not shown) matching with the inner ring of the lamination 33, so that the lamination 33 can be prevented from rotating along the circumferential direction after long-term use, and the lamination 33 and the rotating shaft 215 can be ensured to rotate synchronously. The laminations 33 also include tie bars 333 that are connected between the flap portions 331 and the inner ring 332, and the laminations 33 are stacked in order such that the tie bars 333 define cavities 334 therebetween through which the air flows. The surface of the wing plate portion 331 is radially provided with a plurality of ribs 335, and the ribs 335 are used for generating a small gap between the two laminations 33 to facilitate the air flow to pass through. Preferably, the laminations 33 are made of stainless steel sheet, the thickness of which does not exceed 0.5 mm; the thickness of the ribs 335 also does not exceed 0.5 mm.

With further reference to fig. 8 and 9, the gas-oil separator is provided with a pressure regulating valve 4 at the location of the exhaust port 126. The regulating valve 4 comprises a valve body 41, an end cover 42 sleeved on the valve body 41 and a pressure regulating part 43 installed in the valve body 41. Specifically, a flange 127 integrally formed with the mounting housing 12 is disposed on the mounting housing 12 corresponding to the outer side of the exhaust port 126, one end of the valve body 41 is connected to the flange 127 by a bolt, the other end is connected to the end cap 42 by a snap fit, an exhaust passage 411 is disposed in the valve body 41, and a filtered air outlet 412 connected to the outside is disposed on the side surface of the valve body. The pressure regulating member 43 includes a pressure regulating spring 431 mounted in the valve body 41 and a rubber film 432 connected to the pressure regulating spring 431, and the rubber film 432 is engaged between the valve body 41 and the end cap 42 to fix the position of an outer ring 4321 of the rubber film 432. The rubber membrane 432 has certain elasticity, the middle part 4322 has pressing force towards the exhaust channel 411, and the pressing force is larger than the pushing force of the spring 431, so that the rubber membrane 432 is pressed and sealed on the exhaust channel 411 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 part 4322 of the rubber membrane 432, so that the gas in the gas-oil separator can be discharged after passing through the exhaust passage 411. The pressure regulating valve 4 keeps the gas pressure in the crankcase within a safe range.

The utility model discloses oil and gas separator during operation, driving motor 21 circular telegram drives pivot 215 and rotates, thereby it is rotatory at a high speed to drive the centrifugal component 3 that is located pivot 215 (motor speed can reach 15000 to 20000 commentaries on classics/minute), the gas that has the pollutant gets into second inner chamber 17 through air inlet 134 on the lower cover 13, and in getting into radome fairing 16 along inlet channel 123 in the second inner chamber 17, gas in the radome fairing 16 is when the small clearance that produces by rib 335 between each lamination 33 through, the pollutant that it carried, attached to on lamination 33 like engine oil granule and impurity etc, and by throwing away at a high speed. The clean gas with the pollutants filtered out floats up to the exhaust port 126, and then is discharged into the pressure regulating valve 4, and finally is discharged into the outside, and the waste oil separated and filtered out falls into the oil return hole 124 and is collected to the oil outlet 135 to be discharged.

The utility model has the advantages that: 1. the oil-gas separator of the utility model is provided with a rotating shaft, a lamination which is sleeved on the rotating shaft is sleeved, the rotating shaft and the lamination are driven to rotate by a driving motor, and when gas with pollutants passes through the lamination, the pollutants are separated from the gas under the action of centrifugal force, so that the discharged gas is cleaner and more environment-friendly;

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

1. The utility model provides an electromagnetic type oil and gas separator, its includes shell (1), drive assembly (2) and centrifugal assembly (3), shell (1) is equipped with air inlet (134) and gas vent (126), centrifugal assembly (3) include a plurality of laminations (33) that stack, its characterized in that: drive assembly (2) is including installing driving motor (21) in shell (1), be equipped with pivot (215) on driving motor (21), lamination (33) are connected in pivot (215), driving motor (21) drive pivot (215) are rotated and are driven lamination (33) synchronous revolution, certainly the gas process that air inlet (134) got into follow after lamination (33) filter gas vent (126) are discharged.

2. The electromagnetic oil-gas separator according to claim 1, wherein: the shell (1) comprises an upper cover (11), a lower cover (13) and a mounting shell (12) connected between the upper cover (11) and the lower cover (13).

3. The electromagnetic oil and gas separator of claim 2, wherein: the mounting shell (12) is internally provided with a first inner cavity (125) for accommodating the driving motor (21), a fairing (16) is clamped in the first inner cavity (125), and the lamination (33) is accommodated in the fairing (16).

4. The electromagnetic oil and gas separator of claim 2, wherein: the driving motor (21) further comprises a machine shell (211), a stator (212) installed in the machine shell (211) and a rotor (213) matched and connected in the stator (212), and the rotating shaft (215) is connected to the rotor (213).

5. The electromagnetic oil and gas separator of claim 4, wherein: the top of the shell (211) is in interference fit in the upper cover (11).

6. The electromagnetic oil and gas separator of claim 4, wherein: and a mounting column (214) is fixed on the stator (212), and a control circuit board (22) for controlling the driving motor (21) is mounted on the mounting column (214).

7. The electromagnetic oil and gas separator of claim 3, wherein: the lower cover (13) is clamped at the bottom of the mounting shell (12), and the shell (1) further comprises a fastening piece (15) connected between the lower cover (13) and the mounting shell (12).

8. The electromagnetic oil and gas separator of claim 7, wherein: the mounting shell (12) is provided with a threaded matching part (121) and a clamping part (122), the lower cover (13) is clamped with the clamping part (122), and the fastening piece (15) is abutted against the lower cover (13) and is in threaded connection with the threaded matching part (121).

9. The electromagnetic oil-gas separator of claim 8, wherein: the clamping portion (122) is matched with the lower cover (13) to form a second inner cavity (17), and the clamping portion (122) is provided with an air inlet channel (123) and an oil return hole (124) which are communicated with the first inner cavity (125) and the second inner cavity (17).

10. The electromagnetic oil-gas separator of claim 9, wherein: air inlet (134) are seted up on lower cover (13), still be equipped with oil outlet (135) on lower cover (13), gaseous process air inlet (134) enter into in second inner chamber (17), the waste oil warp of separating outside oil outlet (135) outflow separator.