CN107489486A - A kind of gas oil separation structure, engine and vehicle - Google Patents

A kind of gas oil separation structure, engine and vehicle Download PDF

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Publication number
CN107489486A
CN107489486A CN201610740566.7A CN201610740566A CN107489486A CN 107489486 A CN107489486 A CN 107489486A CN 201610740566 A CN201610740566 A CN 201610740566A CN 107489486 A CN107489486 A CN 107489486A
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CN
China
Prior art keywords
oil
gas
separation
separative element
separation structure
Prior art date
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Withdrawn
Application number
CN201610740566.7A
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Chinese (zh)
Inventor
沈吉瑞
田丹
杨玲
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beiqi Foton Motor Co Ltd
Original Assignee
Borgward Automotive China Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Borgward Automotive China Co Ltd filed Critical Borgward Automotive China Co Ltd
Priority to CN201610740566.7A priority Critical patent/CN107489486A/en
Publication of CN107489486A publication Critical patent/CN107489486A/en
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0422—Separating oil and gas with a centrifuge device
    • F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
    • F01M13/00—Crankcase ventilating or breathing
    • F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
    • F01M2013/0488—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase
    • F01M2013/0494—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with oil trap in the return conduit to the crankcase using check valves

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cyclones (AREA)

Abstract

The invention discloses a kind of gas oil separation structure, engine and vehicle.The gas oil separation structure includes：First separative element, it has the first Oil-gas Separation passage；And second separative element, it has the second Oil-gas Separation passage, the second Oil-gas Separation passage is arranged in parallel with the first Oil-gas Separation passage, and control valve is provided with the second Oil-gas Separation passage, for controlling the break-make of the second Oil-gas Separation passage.It is understood that the quantity of the first separative element and the second separative element is not limited to one.The gas oil separation structure of the present invention is provided with least two-stage separating capacity, so as to carry out corresponding Oil-gas Separation according to the different air leakages under the different operating modes such as engine low load, high load capacity, and then improves the efficiency of Oil-gas Separation.

Description

A kind of gas oil separation structure, engine and vehicle
Technical field
The present invention relates to technical field of engines, more particularly to a kind of gas oil separation structure, engine and vehicle.
Background technology
The structure type of the gs-oil separator of engine mainly includes labyrinth baffle-type structure, cyclone type structure, filter paper knot Structure and particle ionization structure etc..
Existing various gs-oil separators design only for a kind of engine operating condition, it is impossible to are adapted to different engines Under operating mode.Under some engine operating conditions, it need to separate that gas pressure is smaller, so as to which the flowing velocity on disjoint paths is excessively slow, Inferior separating effect；And under other engine operating conditions, it need to separate that gas pressure is larger, the flowing velocity mistake on disjoint paths It hurry up, carry the oil droplet discharge that part has little time separation, this external flux is very big, and the oil droplet of separation can not discharge in time, influence to separate Effect.
Thus, it is desirable to have a kind of technical scheme is come at least one in the drawbacks described above that overcomes or at least mitigate prior art It is individual.
The content of the invention
Lacked it is an object of the invention to provide a kind of gas oil separation structure to overcome or at least mitigate the above-mentioned of prior art It is at least one in falling into.
To achieve the above object, the present invention provides a kind of gas oil separation structure, and the gas oil separation structure includes：
First separative element, it has the first Oil-gas Separation passage；And
Second separative element, it has the second Oil-gas Separation passage, the second Oil-gas Separation passage and the described first oil Gas split tunnel is arranged in parallel, and control valve is provided with the second Oil-gas Separation passage, for controlling second oil gas The break-make of split tunnel.It is understood that the quantity of the first separative element and the second separative element is not limited to one.
Specifically, the control valve is spring diaphragm or spring leaf check valve, in the second Oil-gas Separation passage When pressure in pressure and/or the first Oil-gas Separation passage is more than or equal to setting value, spring diaphragm or the spring leaf check valve Open.
Specifically, the quantity of second separative element is at least two, and the second oil gas of different second separative elements The Opening pressure of the control valve set on split tunnel is different, and gradually increases according to the multiplication constant of setting.For example, each control The Opening pressure of valve is according to 1:b；Or 1:b:b2Or 1:b:b2:b3Etc the increased mode of index be incremented by.More specifically, Multiplication constant b is more than 1 and is less than or equal to 1.5.
Specifically, the control valve is magnetic valve, and the gas oil separation structure further comprises：
Pressure sensor, it detects pressure in described first Oil-gas Separation passage and/or second Oil-gas Separation is led to Pressure in road, and
ECU, it controls the electrically-controlled valve according to the pressure of detection, is more than or equal to setting value in the pressure of detection When so that the solenoid valve conduction.
Specifically, first separative element and second separative element are cyclone cylinder, and the control valve is set At the gas outlet of the cyclone cylinder of second separative element.
Specifically, first separative element and second separative element include two cyclone cylinders, and the whirlwind Cylinder is integrally disposed together.
Specifically, the gas outlet is arranged on the top of the cyclone cylinder, and oil storage is provided with below the cyclone cylinder Chamber, and the shoe cream room is divided into the mutually isolated sub- chamber of the first oil storage and the sub- chamber of the second oil storage by dividing plate, wherein, first storage Foxy old hand chamber collects the fluid that the cyclone cylinder of first separative element is isolated；It is single that the sub- chamber of second oil storage collects the second separation The fluid that the cyclone cylinder of member is isolated.
Specifically, return check valve is provided with the bottom of the shoe cream room, the return check valve is spring leaf list To valve, wherein, the return check valve is arranged on the lower section of the dividing plate, in the sub- chamber of first oil storage and second oil storage When any one fluid collected in sub- chamber reaches set amount, the return check valve is opened.
Specifically, the gas oil separation structure includes：Bottom plate, cyclone structure layer, middle casing, top cover and PRV valves, it is described Bottom plate, cyclone structure layer, middle casing and top cover are arranged in order from bottom to up, and with the side of friction welding (FW) between two neighboring part Formula is interconnected, and the PRV valves are arranged on the middle casing,
The bottom plate combines with the cyclone structure layer and forms shoe cream room and inlet chamber；
Four cyclone cylinders are integrated with the cyclone structure layer；
The cylindrical fit structure for coordinating with the cyclone cylinder, and escape pipe are provided with the middle casing,
The cyclone structure layer combines with the middle casing and forms disengagement chamber and gas flow cavity after PRV valves；
The middle casing combines with above-mentioned top cover and is formed and separate rear chamber, wherein, the outlet of the disengagement chamber and institute State separation rear chamber connection, it is described separation rear chamber outlet connected with the entrance of the PRV valves, the outlet of the PRV valves and Gas flow cavity connects after the PRV valves, and gas flow cavity connects with the escape pipe after the PRV valves.
The present invention also provides a kind of engine, and the engine includes gas oil separation structure as described above.
The present invention also provides a kind of vehicle, and the vehicle includes gas oil separation structure as described above, or as described above Engine.
The gas oil separation structure of the present invention is provided with least two-stage separating capacity, so as to according to low negative in engine Different air leakages under the different operating modes such as lotus, high load capacity carry out corresponding Oil-gas Separation, and then improve the efficiency of Oil-gas Separation.
Brief description of the drawings
Fig. 1 a are the schematic diagrames of the bottom surface of gas oil separation structure according to an embodiment of the invention.
Fig. 1 b are the schematic diagrames of the side of gas oil separation structure shown in Fig. 1 a.
Fig. 1 c are the schematic diagrames of the top surface of gas oil separation structure shown in Fig. 1 a.
Fig. 1 d are the schematic perspective views of gas oil separation structure shown in Fig. 1 a.
Fig. 1 e are schematic cross sectional views of the gas oil separation structure shown in Fig. 1 a on a horizontal plane.
Fig. 1 f are the schematic cross sectional views of the line A-A along Fig. 1 e.
Fig. 1 g are the schematic cross sectional views of the line B-B along Fig. 1 e.
Fig. 2 a are the elevational schematic views of the bottom plate of gas oil separation structure shown in Fig. 1 a.
Fig. 2 b are the schematic side views of the bottom plate of gas oil separation structure shown in Fig. 1 a.
Fig. 2 c are the schematic top plan views of the bottom plate of gas oil separation structure shown in Fig. 1 a.
Fig. 3 a are the schematic, bottom views of the cyclone cylinder structure sheaf of gas oil separation structure shown in Fig. 1 a.
Fig. 3 b are the schematic side views of the cyclone cylinder structure sheaf of gas oil separation structure shown in Fig. 1 a.
Fig. 3 c are the schematic top plan views of the cyclone cylinder structure sheaf of gas oil separation structure shown in Fig. 1 a.
Fig. 3 d are the schematic perspective views of whirlwind barrel structure.
Fig. 4 a are the schematic diagrames of the bottom surface of the middle casing of gas oil separation structure shown in Fig. 1 a.
Fig. 4 b are the schematic side views of the middle casing of gas oil separation structure shown in Fig. 1 a.
Fig. 4 c are the schematic top plan views of the middle casing of gas oil separation structure shown in Fig. 1 a.
Fig. 5 a are the schematic diagrames of the bottom surface of the top cover of gas oil separation structure shown in Fig. 1 a.
Fig. 5 b are the schematic side views of the top cover of gas oil separation structure shown in Fig. 1 a.
Fig. 5 c are the schematic top plan views of the top cover of gas oil separation structure shown in Fig. 1 a.
Fig. 6 a are schematically shown on the inside of PRV valves enclosing cover.
Fig. 6 b and Fig. 6 c are the schematic side elevation and schematic plan of PRV valve enclosing covers respectively.
Fig. 7 schematically shows spring leaf check valve.
Fig. 8 schematically shows spring diaphragm.
Reference：
10 Bottom plate 25 Dividing plate
20 Cyclone structure layer 26 Cyclone cylinder spill port
30 Middle casing 31 Cylindrical fit structure
40 Top cover 32 Disengagement chamber
50 PRV valves 33 Gas flow cavity after PRV valves
11 Shoe cream room 34 Aid in outage
11a The sub- chamber of first oil storage 35 Escape pipe
11b The sub- chamber of second oil storage 36 Spring diaphragm
12 Inlet chamber 41 Separate rear chamber
13 Return check valve 37 Secondary shoe cream room
14 Outage 38 Spring diaphragm mounting hole
21 Cyclone cylinder 39 Gas outlet
23 Secondary return check valve
Embodiment
In the accompanying drawings, represent same or similar element using same or similar label or there is same or like function Element.Embodiments of the invention are described in detail below in conjunction with the accompanying drawings.
In the description of the invention, term " " center ", " longitudinal direction ", " transverse direction ", "front", "rear", "left", "right", " vertical ", The orientation or position relationship of the instruction such as " level ", " top ", " bottom " " interior ", " outer " are to be closed based on orientation shown in the drawings or position System, it is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must have Specific orientation, with specific azimuth configuration and operation, therefore it is not intended that limiting the scope of the invention.
Gas oil separation structure according to an embodiment of the invention includes：First separative element, it has the first Oil-gas Separation Passage；And second separative element, it has the second Oil-gas Separation passage.The second Oil-gas Separation passage and the described first oil Gas split tunnel is arranged in parallel, and control valve is provided with the second Oil-gas Separation passage, for controlling second oil gas The break-make of split tunnel.
It is understood that the quantity of the first separative element and the second separative element is not limited to one, but can be Any appropriate quantity.For example, the quantity of the first separative element and the second separative element is all two, or one is two, Another is three.
Specifically, the control valve is spring diaphragm or spring leaf check valve, in the second Oil-gas Separation passage When pressure in pressure and/or the first Oil-gas Separation passage is more than or equal to setting value, spring diaphragm or the spring leaf check valve Open.
The quantity of second separative element is at least two, and the second Oil-gas Separation passage of different second separative elements The Opening pressure of the control valve of upper setting is different, and gradually increases according to the multiplication constant of setting.For example, the unlatching of each control valve Pressure is according to 1:b；Or 1:b:b2Or 1:b:b2:b3Etc the increased mode of index be incremented by.More specifically, multiplication constant b More than 1 and less than or equal to 1.5.
Specifically, the control valve is magnetic valve, and the gas oil separation structure further comprises：Pressure sensor, its Detect the pressure in the first Oil-gas Separation passage and/or the pressure in the second Oil-gas Separation passage；And automatically controlled list Member, it controls the electrically-controlled valve according to the pressure of detection, when the pressure of detection is more than or equal to setting value so that the electromagnetism Valve turns on.
Fig. 1 a are the schematic diagrames of the bottom surface of gas oil separation structure according to an embodiment of the invention.Fig. 1 b are oily shown in Fig. 1 a The schematic diagram of the side of gas separation structure.Fig. 1 c are the schematic diagrames of the top surface of gas oil separation structure shown in Fig. 1 a.Fig. 1 d are Fig. 1 a The schematic perspective view of shown gas oil separation structure.Fig. 1 e are signal of the gas oil separation structure shown in Fig. 1 a on a horizontal plane Property sectional view.Fig. 1 f are the schematic cross sectional views of the line A-A along Fig. 1 e.Fig. 1 g are the schematic cross sectional views of the line B-B along Fig. 1 e.
In the illustrated embodiment, the first separative element and second separative element are cyclone cylinder, and the control valve It is arranged at the gas outlet of the cyclone cylinder 21 of second separative element.
Specifically, first separative element and second separative element include two cyclone cylinders, and the whirlwind Cylinder is integrally disposed together.More specifically, 4 cyclone cylinders 21 are integrated on cyclone structure layer 20, and the oil gas of 4 cyclone cylinders enters Mouth is adjacent to one another, and both facing to disengagement chamber 32 (Fig. 3 c).
The gas outlet of cyclone cylinder 21 is arranged on the top of cyclone cylinder 21, and the lower section of cyclone cylinder 21 is provided with shoe cream room 11. Shoe cream room 11 is divided into the sub- chamber 11a of the first mutually isolated oil storage and the sub- chamber 11b of the second oil storage by dividing plate 25.The sub- chamber of first oil storage 11a collects the fluid that the cyclone cylinder 21 of first separative element is isolated；It is single that the sub- chamber 11b of second oil storage collects the second separation The fluid that the cyclone cylinder 21 of member is isolated.
Return check valve 13 is provided with the bottom of shoe cream room 11, return check valve 13 is spring leaf check valve, wherein, Return check valve 13 is arranged on the lower section of the dividing plate 25, in the sub- chamber 11a of first oil storage and the sub- chamber 11b of second oil storage In any one fluid collected when reaching set amount, the return check valve 13 is opened, and passes through the oil extraction of outage 14.
The gas oil separation structure of diagram includes：Bottom plate 10, cyclone structure layer 20, middle casing 30, top cover 40 and PRV valves 50, the bottom plate 10, cyclone structure layer 20, middle casing 30 and top cover 40 are arranged in order from bottom to up, and two neighboring part Between interconnected in a manner of friction welding (FW).PRV valves 50 are arranged on the middle casing 30.
The bottom plate 10 combines with the cyclone structure layer 20 and forms shoe cream room 11 and inlet chamber 12.
Four cyclone cylinders 21 are integrated with the cyclone structure layer 20.The oil gas entrance of four cyclone cylinders 21 all with disengagement chamber 32 connections.
The cylindrical fit structure 31 and escape pipe 35 for coordinating with cyclone cylinder 21 are provided with middle casing 30.
Cyclone structure layer 20 combines with middle casing 30 and forms disengagement chamber 32 and gas flow cavity 33 after PRV valves.In addition, Cyclone structure layer 20 is also combined with middle casing 30 and forms time shoe cream room 37, and time oil return is provided with the bottom of secondary shoe cream room 37 Check valve 23.By and large, secondary shoe cream room 37 is located at the lower section of gas flow cavity 33 after PRV valves, and extends downward into and oil storage The bottom of chamber 11 is substantially flush.
The middle casing 30 combines with above-mentioned top cover 40 and is formed and separate rear chamber 41, wherein, the disengagement chamber 32 Outlet connects with the rear chamber 41 that separates, and the outlet of the separation rear chamber 41 connects with the entrance of the PRV valves 50, described The outlet of PRV valves 50 connects with gas flow cavity 33 after the PRV valves, gas flow cavity 33 and the outlet after the PRV valves Pipe 35 connects.
One embodiment of the invention is a kind of engine, and the engine includes gas oil separation structure as described above.
This another embodiment of the present invention is a kind of vehicle, and the vehicle includes gas oil separation structure as described above, or Engine as described above.
The gas oil separation structure of the present invention is provided with least two-stage separating capacity, so as to according to low negative in engine Different air leakages under the different operating modes such as lotus, high load capacity carry out corresponding Oil-gas Separation, and then improve the efficiency of Oil-gas Separation.
Generally speaking, gas oil separation structure of the invention includes：Bottom plate 10, cyclone structure layer 20, middle casing 30 and top Lid 40.This four part from bottom to up, is interconnected to form three layering cavitys successively.
4 cyclone cylinders 21 are provided with cyclone structure layer 20 referring to Fig. 3 a- Fig. 3 d.Engine interior fuel-air mixture, Spun up through four cyclone cylinders 21.The machine oil in oil gas is hit cyclone wall and be attached on cyclone wall, by gravity Aggregate and precipitate；Clean gas is flowed out by exporting after separation.
Referring to Fig. 1 f, mist of oil mixed gas enters intermediate layer middle casing 30 and cyclone structure layer 20 from bottom plate 10, warp After crossing four separation of cyclone cylinders 21, flowed out from the space that top cover 40 and middle casing 30 are formed.By PRV valves 50 from escape pipe 35 Flow to pressurized end or inlet manifold.
Bottom plate 10 is connected with cyclone structure layer 20 using vibrations friction welding (FW), and forms two cavitys：It is shoe cream room 11 respectively With inlet chamber 12.Middle casing 30 is equally connected with cyclone structure layer 20 in the form of friction welding (FW) is shaken, and forms disengagement chamber Gas flow cavity 33 after 32 and PRV valves, and subsidiary oil return oil-bearing structure.
Top cover 40 is formed with middle casing 30 and separates rear chamber 41, and gas is flowed into by this separation rear chamber 41 after separation PRV valves 50.
Shoe cream room 11 is split into two halves by Fig. 3 a of dividing plate 25, and spill port 22 is also divided into two semicircles, be the purpose of major design by The oil return of four cyclone cylinders 21 separates, and meets that machine oil effectively collects oil return after being separated under Different Work Condition of Engine.
Collect spill port 26 as shown in figure 3, being provided with the bottom of each cyclone cylinder 21.So as to be attached to cyclone wall On oil droplet flowed downwardly into by collecting spill port 26 in shoe cream room 11.
When gas after separation is by PRV valves 50, because separator or isolating construction are not completely separated in gas Machine oil, so as to when by PRV valves 50, have remaining machine oil and be attached on the component of PRV valves 50, and precipitate aggregation.So There is a spill port in the bottom design of PRV valves 50, will accumulate in the discharge of the machine oil in PRV valve insertions.It is adapted therewith Auxiliary outage 34 is designed with middle casing 30, is accumulated in the machine oil for avoiding PRV valve modules from discharging on middle casing 30.
Air-fuel mixture gas enters disengagement chamber 32 by bottom plate 10, is entered by mixed gas entry in cyclone cylinder 21. Cyclone cylinder 21 and the collective effect of cylindrical fit structure 31, mixed gas is set to be rotated after entering cyclone cylinder 21.Oil droplet is in centrifugal force It is attached on cyclone wall under effect, is entered after collecting from cyclone cylinder spill port 26 in shoe cream room 11.
Four cyclone cylinders 21 are classification work.In the case of the low operating mode of engine, the cyclone cylinder 21 of inner side two works.Need It is noted that the top of two cyclone cylinders 21 in inner side is not provided with spring diaphragm 36.In the case of the low operating mode of engine, gas leakage Measure low, if worked using four cyclone cylinders 21 simultaneously, circulated gases are likely to not reach required rotary speed, influence point From effect.When high engine load operation, air leakage increase, spring diaphragm 36 is opened in the presence of gas pressure, and four Individual cyclone cylinder 21 works simultaneously, reduces engine interior pressure, ensures separating effect.
As it was previously stated, shoe cream room 11 is divided to for two cavitys, it is to prevent from separating gas in the case of the low operating mode of engine The flow-disturbing in shoe cream room.Flow-disturbing herein refers to that separating gas enters in the cyclone cylinder 21 with spring diaphragm 36, because pressure Not enough, spring diaphragm 36 is not opened, and gas flows through shoe cream room 11 by cyclone cylinder spill port 26, then does not have spring by another two The cyclone cylinder spill port 26 of the cyclone cylinder 21 of diaphragm 36 flows out, and causes gas flow-disturbing, influences separating effect.
Referring to Fig. 4 c, spring diaphragm mounting hole 38 is provided with the top of middle casing 30, for spring to be fixedly mounted Diaphragm 36.In the illustrated embodiment, two spring diaphragm mounting holes 38 are provided with spring diaphragm 36 is fixedly mounted.It can manage Solution, can be fixedly mounted spring diaphragm 36 using other structures.
Still referring to Fig. 4 c, 4 gas outlets 39 are provided with the top of middle casing 30.Spring diaphragm 36 acts on In optionally blocking two gas outlets 39 therein.So as to which, spring diaphragm 36 is used as being arranged on including two cyclone cylinders 21 Control valve on Oil-gas Separation passage, for controlling the break-make of the Oil-gas Separation passage.
Referring to Fig. 8, two diaphragms are provided with spring diaphragm 38, control two gas outlets respectively.It is understood that The structure of spring diaphragm 38 is not limited to illustrate embodiment with form.Such as in one alternate embodiment, on each spring diaphragm One diaphragm is only set, fixation is installed individually from each spring diaphragm.It is understood that spring diaphragm 38 is one in itself Individual check valve, it can only be opened on the direction of cyclone cylinder exhaust.Further, spring diaphragm 38 can also use spring leaf Check valve replaces.The concrete form of spring leaf check valve herein can be with the form phase of the return check valve 13 shown in Fig. 7 Together.
It is last it is to be noted that：The above embodiments are merely illustrative of the technical solutions of the present invention, rather than its limitations.This The those of ordinary skill in field should be understood：Technical scheme described in foregoing embodiments can be modified, or it is right Which part technical characteristic carries out equivalent substitution；These modifications are replaced, and the essence of appropriate technical solution is departed from this Invent the spirit and scope of each embodiment technical scheme.

Claims (10)

  1. A kind of 1. gas oil separation structure, it is characterised in that including：
    First separative element, it has the first Oil-gas Separation passage；And
    Second separative element, it has the second Oil-gas Separation passage, the second Oil-gas Separation passage and first oil gas point It is arranged in parallel from passage, control valve is provided with the second Oil-gas Separation passage, for controls second Oil-gas Separation The break-make of passage.
  2. 2. gas oil separation structure as claimed in claim 1, it is characterised in that the control valve is spring diaphragm or spring leaf list To valve, the pressure in pressure and/or the first Oil-gas Separation passage in the second Oil-gas Separation passage is more than or equal to setting During value, spring diaphragm or the spring leaf check valve is opened.
  3. 3. gas oil separation structure as claimed in claim 2, it is characterised in that the quantity of second separative element is at least two It is individual, and the Opening pressure of the control valve set on the second Oil-gas Separation passage of different second separative element is different, and according to setting Fixed multiplication constant gradually increases.
  4. 4. gas oil separation structure as claimed in claim 1, it is characterised in that the control valve is magnetic valve, and the oil gas Isolating construction further comprises：
    Pressure sensor, it is detected in pressure and/or the second Oil-gas Separation passage in the first Oil-gas Separation passage Pressure, and
    ECU, it controls the electrically-controlled valve according to the pressure of detection, when the pressure of detection is more than or equal to setting value, makes Obtain the solenoid valve conduction.
  5. 5. such as the gas oil separation structure any one of claim 1-4, it is characterised in that first separative element and institute It is cyclone cylinder (21) to state the second separative element, and the control valve is arranged on the cyclone cylinder (21) of second separative element At gas outlet.
  6. 6. gas oil separation structure as claimed in claim 5, it is characterised in that first separative element and second separation Unit includes two cyclone cylinders (21), and the cyclone cylinder (21) is integrally disposed together.
  7. 7. gas oil separation structure as claimed in claim 5, it is characterised in that the gas outlet is arranged on the cyclone cylinder (21) Top, be provided with shoe cream room (11) below the cyclone cylinder (21), and the shoe cream room (11) is separated by dividing plate (25) For the mutually isolated sub- chamber of the first oil storage (11a) and the sub- chamber of the second oil storage (11b), wherein, the sub- chamber of the first oil storage (11a) is received Collect the fluid that the cyclone cylinder (21) of first separative element is isolated；The sub- chamber of second oil storage (11b) collects the second separation The fluid that the cyclone cylinder (21) of unit is isolated.
  8. 8. gas oil separation structure as claimed in claim 7, it is characterised in that be provided with the bottom of the shoe cream room (11) Return check valve (13), the return check valve (13) they are spring leaf check valve, wherein, the return check valve (13) is arranged on The lower section of the dividing plate (25), any one receipts in the sub- chamber of the first oil storage (11a) and the sub- chamber of the second oil storage (11b) When the fluid of collection reaches set amount, the return check valve (13) is opened.
  9. 9. a kind of engine, it is characterised in that including the gas oil separation structure as any one of claim 1-8.
  10. 10. a kind of vehicle, it is characterised in that including the gas oil separation structure as any one of claim 1-8, or as weighed Profit requires the engine described in 9.
CN201610740566.7A 2016-08-26 2016-08-26 A kind of gas oil separation structure, engine and vehicle Withdrawn CN107489486A (en)

Priority Applications (1)

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Cited By (1)

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CN112576335A (en) * 2020-12-11 2021-03-30 奇瑞汽车股份有限公司 Engine crankcase ventilation device

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CN202325757U (en) * 2011-11-09 2012-07-11 中国第一汽车股份有限公司 Integration type oil-gas separator
CN102588041A (en) * 2012-02-27 2012-07-18 长城汽车股份有限公司 Gas-oil separator
CN103953417A (en) * 2014-03-28 2014-07-30 青岛鑫铁成汽车配件有限公司 Parallel-type oil-gas separator for crankcase ventilation

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