CN106968758A - A kind of Combined oil gas separator - Google Patents
A kind of Combined oil gas separator Download PDFInfo
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- CN106968758A CN106968758A CN201611229063.XA CN201611229063A CN106968758A CN 106968758 A CN106968758 A CN 106968758A CN 201611229063 A CN201611229063 A CN 201611229063A CN 106968758 A CN106968758 A CN 106968758A
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- oil return
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- fuel mixture
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- 239000000203 mixture Substances 0.000 claims abstract description 60
- 239000000446 fuel Substances 0.000 claims abstract description 57
- 238000000926 separation method Methods 0.000 claims abstract description 46
- 238000010276 construction Methods 0.000 claims abstract description 23
- 230000008676 import Effects 0.000 claims abstract description 15
- 238000005192 partition Methods 0.000 claims description 35
- 241000283216 Phocidae Species 0.000 claims description 12
- 230000005484 gravity Effects 0.000 claims description 4
- 239000012528 membrane Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 5
- 239000003921 oil Substances 0.000 description 187
- 239000010721 machine oil Substances 0.000 description 16
- 239000007788 liquid Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of Combined oil gas separator, it is desirable to provide a kind of simple in construction, low manufacture cost, and oil-gas separation efficiency is high, the Combined oil gas separator of good separating effect.It includes being provided with air-fuel mixture passage, gas outlet channels and the mixed gas import being connected with air-fuel mixture passage in separator shell, separator shell；It is arranged on the smart isolating construction on separator shell, smart isolating construction include being arranged on the essence separation dividing plate in air-fuel mixture passage and be located on the bottom surface of air-fuel mixture passage and with the essence oil drain tank that to separate dividing plate corresponding, essence separation dividing plate is provided with the first spill port provided with some essence separation through holes, the bottom surface of oil drain tank；And the whirlwind oil-returning structure on separator shell is arranged on, and smart isolating construction is located between mixed gas import and whirlwind oil-returning structure.
Description
Technical field
The present invention relates to Oil-gas Separation field, and in particular to a kind of automobile engine Combined oil gas separator.
Background technology
Automobile engine gs-oil separator is mainly used in separating in the machine oil in the air-fuel mixture gas in crankcase.
After air-fuel mixture gas enters in gs-oil separator, gs-oil separator separates gas and machine oil, and the machine oil isolated is flowed back to
Oil sump；But it is high that current gs-oil separator leads to complicated, cost of manufacture, and oil-gas separation efficiency is not good.
On the other hand, the machine oil that current gs-oil separator is isolated generally returns to oil sump in the following ways：Pass through
One oil return pipe is directly dropped onto in crankcase by spill port, then flows back to oil sump, and this circuit is although simple in construction,
But the gas in crankcase can enter gs-oil separator by spill port, the separative efficiency of gs-oil separator is influenceed.
The content of the invention
The first object of the present invention is that there is provided a kind of simple in construction, making in order to overcome the deficiencies in the prior art
Cost is low, and oil-gas separation efficiency is high, the Combined oil gas separator of good separating effect.
The present invention on the basis of the first purpose another object is that for a kind of gas meeting that can effectively solve in crankcase
Gs-oil separator is entered by spill port, the Combined oil gas separator for the problem of influenceing the separative efficiency of gs-oil separator.
The technical scheme is that：
A kind of Combined oil gas separator, including：Arranged in separator shell, separator shell provided with air-fuel mixture passage, gas
Go out passage and the mixed gas import being connected with air-fuel mixture passage；The smart isolating construction on separator shell is arranged on, essence
Isolating construction include be arranged in air-fuel mixture passage essence separation dividing plate and be located on the bottom surface of air-fuel mixture passage and with essence
The corresponding oil drain tank of dividing plate is separated, essence separation dividing plate is provided with first time provided with some essence separation through holes, the bottom surface of oil drain tank
Oilhole；And the whirlwind oil-returning structure on separator shell is arranged on, and smart isolating construction is located at mixed gas import and whirlwind
Between oil-returning structure；The whirlwind oil-returning structure includes the whirlwind oil returning tube being arranged on separator shell and is arranged on whirlwind time
Discharge pipe in oily cylinder, the whirlwind oil returning tube includes superposed cylindrical portion and the cone cylinder portion positioned at bottom, cone cylinder portion
Internal diameter is gradually reduced from top to bottom, and the tangential of air-fuel mixture passage and whirlwind oil return tube inner chamber is communicated with the side of cylindrical portion
Import, and tangential entry, close to the upper end of whirlwind oil returning tube, the upper end of whirlwind oil returning tube is provided with to be connected with gas outlet channels
Air outlet, the lower end of whirlwind oil returning tube is provided with the second spill port, and the discharge pipe and cylindrical portion are coaxial, and the upper end of discharge pipe
Mouth is tightly connected with air outlet.
The Combined oil gas separator of this programme reasonably combines smart isolating construction with whirlwind oil-returning structure,
Realize that two-stage is separated in same air-fuel mixture passage, so as to improve oil-gas separation efficiency and separating effect.On the other hand, this programme
Combined oil gas separator it is simple in construction, low manufacture cost.
Preferably, smart isolating construction should include being arranged on separator shell and the self sealss corresponding with oil drain tank are returned
Oily structure；The self sealss oil-returning structure includes the oil return presented the first oil return pipe of lower extension and be set on the first oil return pipe
Deduction cap, upper end open, the lower end closed of the oil return deduction cap, first oil return pipe is located at the outside of separator shell, first
The upper port of oil return pipe is tightly connected with the first spill port, and the lower port of the first oil return pipe is located in oil return deduction cap.
The gas that the self sealss oil-returning structure of this programme can be solved effectively in crankcase can be by the first of smart isolating construction
Spill port enters gs-oil separator, the problem of influenceing the separative efficiency of gs-oil separator.
Preferably, the upper surface of oil return deduction cap is provided with oil return breach, and the floor height of oil return breach is higher than first
The height of the lower port of oil return pipe.
Preferably, on the first oil return pipe and the axis vertical setting of oil return deduction cap, the medial surface of oil return deduction cap and being located at
The lower section of oil return breach is provided with annular stop block, the first oil return pipe and is arranged with horizontal float dividing plate, horizontal float membrane support
In on annular stop block, horizontal float dividing plate is located at the lower section of oil return breach, and the buoyancy of horizontal float dividing plate is more than gravity.
This programme can be effectively solved when the machine in oil return deduction cap in the case where not influenceing the smooth oil return of smart isolating construction
When oil level is less than the lower port of the first oil return pipe, the gas in crankcase also can be by the first spill port into oil gas point
From device, the problem of influenceing the separative efficiency of gs-oil separator.
Preferably, the second oil return pipe is additionally provided with the outside of separator shell, the upper end of the second oil return pipe and the second oil return
Hole is tightly connected, and the lower end of the second oil return pipe is provided with oil return valve.
The oil return valve of this programme can effectively solve gas in crankcase can be by the second spill port of whirlwind oil-returning structure
Into gs-oil separator, the problem of influenceing the separative efficiency of gs-oil separator.
Preferably, the medial surface in cone cylinder portion is provided with the turbulent band of annular, annular turbulent flow band is by some cone cylinder portions that are located at
Groove composition on medial surface.The turbulent band of annular of this programme can be improved while oil-gas separation efficiency is had little influence on
Oil gas separation.
Preferably, annular turbulent flow band is located at the middle part or middle and upper part of the medial surface in cone cylinder portion.
Preferably, gas outlet channels are provided with one-way valve structures, one-way valve structures include being arranged on gas and discharging leading to
Partition panel in road, partition panel separates gas outlet channels, and partition panel is provided with the valve opening through partition panel opposite sides face；
The valve block mounting rod in the middle part of partition panel is arranged on, valve block mounting rod is provided with valve block baffle plate；And it is set on valve block mounting rod
The upper rubber valve plate for being used to seal the valve opening described in hiding, rubber valve plate is located between valve block baffle plate and partition panel, and rubber valve plate energy
Enough axial movements along valve block mounting rod.
The one-way valve structures of this programme are realized unidirectionally using the pressure change in the gas outlet channels of partition panel both sides
The keying of valve arrangement, it is not only simple in structure compact, low manufacture cost, and and conventional one-way valve（The keying of conventional one-way valve
Directly influenceed with service life by spring）Compare, keying and the service life portion of the one-way valve structures of this programme are influenceed by spring.
Preferably, the side of partition panel is provided with annular projection and outer annular protrusion, annular is raised, outer convex annular
The same side for being located at partition panel with valve block mounting rod is played, annular projection is located in outer annular protrusion, and valve block mounting rod is located at interior
In annular protrusion, it is raised between outer annular protrusion that the valve opening is located at annular.
Preferably, separator shell includes upper shell, middle housing and the lower house being sequentially distributed from top to bottom, the gas
Body passing away is located between upper shell and middle housing, and air-fuel mixture passage is located between middle housing and lower house, and oil gas is mixed
Close the underface that passage is located at gas outlet channels.This programme is simple and compact for structure, is easy to actual production to make.
The beneficial effects of the invention are as follows：
First, simple and compact for structure, low manufacture cost, and oil-gas separation efficiency is high, good separating effect.
Second, the gas that can effectively solve in crankcase can enter gs-oil separator by spill port, Oil-gas Separation is influenceed
The Combined oil gas separator of the problem of separative efficiency of device.
Brief description of the drawings
Fig. 1 is a kind of a kind of axonometric drawing of Combined oil gas separator of embodiments of the invention 1.
Fig. 2 is a kind of a kind of cross-sectional view of Combined oil gas separator of embodiments of the invention 1.
Fig. 3 is the partial enlarged drawing at A in Fig. 2.
Fig. 4 is a kind of structural representation of the oil return deduction cap of embodiments of the invention 1.
Fig. 5 is the partial enlarged drawing at B in Fig. 2.
Fig. 6 is the partial enlarged drawing at C in Fig. 2.
Fig. 7 is the partial enlarged drawing at D in Fig. 6.
Fig. 8 is a kind of partial structural diagram of the whirlwind oil-returning structure of embodiments of the invention 2.
Fig. 9 is a kind of structural representation at the self sealss oil-returning structure of embodiments of the invention 3.
In figure：
Upper shell 1a, middle housing 1b, lower house 1c；
PRV valves 2；
Second oil return pipe 3, oil return valve 3.1；
Mixed gas import 4；
Air-fuel mixture passage 5；
Smart isolating construction 6, essence separation dividing plate 6.1, essence separation through hole 6.2, skimming baffle 6.3, oil drain tank 6.4, the first spill port
6.4.1, self sealss oil-returning structure 6.5, the first oil return pipe 6.5.1, oil return deduction cap 6.5.2, fixture block 6.5.3, hole clipping 6.5.4, return
Oily breach 6.5.5, annular stop block 6.5.6, horizontal float dividing plate 6.5.7；
Whirlwind oil-returning structure 7, cylindrical portion 7.1, cone cylinder portion 7.2, the second spill port 7.3, discharge pipe 7.4, air outlet 7.5, tangentially
Import 7.6, annular turbulent flow band 7.7；
Gas outlet channels 8；
One-way valve structures 9, partition panel 9.1, valve opening 9.2, rubber valve plate 9.3, valve block mounting rod 9.4, valve block baffle plate 9.5, inner ring
Shape projection 9.6, outer annular protrusion 9.7.
Embodiment
The present invention is described in further detail with embodiment below in conjunction with the accompanying drawings：
Embodiment 1：As shown in Figure 1 and Figure 2, a kind of Combined oil gas separator, including：Separator shell；It is arranged on outside separator
Smart isolating construction 6 on shell and the whirlwind oil-returning structure 7 being arranged on separator shell.
Separator shell includes upper shell 1a, middle housing 1b and the lower house 1c being sequentially distributed from top to bottom.Outside separator
Air-fuel mixture passage 5, gas outlet channels 8 and the mixed gas import 4 being connected with air-fuel mixture passage are provided with shell.Gas
Passing away is located between upper shell and middle housing.Air-fuel mixture passage is located between middle housing and lower house, and air-fuel mixture
Passage is located at the underface of gas outlet channels.Mixed gas import is arranged on the bottom surface of lower house.
As shown in Figure 2, Figure 3, Figure 4, smart isolating construction is located between mixed gas import and whirlwind oil-returning structure.Essence separation
Structure includes being arranged on the essence separation dividing plate 6.1 in air-fuel mixture passage；It is located on the bottom surface of air-fuel mixture passage and divides with essence
The oil drain tank 6.4 corresponding from dividing plate；And it is arranged on self sealss oil return knot on separator shell and corresponding with oil drain tank
Structure 6.5.
Essence separation dividing plate and airflow direction in air-fuel mixture passage are perpendicular.Essence separation dividing plate leads to air-fuel mixture
Road separates.Essence separation dividing plate is provided with some essence separation through holes 6.2.The oil gas of essence separation through hole connection essence separation dividing plate both sides is mixed
Close passage.Smart separation through hole is in cone, and essence separates airflow side of the cross-sectional area of through hole in air-fuel mixture passage
It is gradually reduced upwards.
It is additionally provided with air-fuel mixture passage and the essence skimming baffle 6.3 that to separate dividing plate parallel.Essence separation dividing plate is with separating
Baffle plate is distributed along before and after the airflow direction in air-fuel mixture passage.The top surface of skimming baffle and the top surface of air-fuel mixture passage
Provided with gap.Skimming baffle was provided with oily breach, and the bottom surface of excessively oily breach is flushed with the bottom surface of air-fuel mixture passage.
The bottom surface of oil drain tank is provided with the first spill port 6.4.1.The oil drain tank of the present embodiment is two.Essence separation dividing plate is with dividing
It is located at from baffle plate between two oil drain tanks.
Self sealss oil-returning structure includes presenting the first oil return pipe 6.5.1 of lower extension and is set in returning on the first oil return pipe
Oily deduction cap 6.5.2.Upper end open, the lower end closed of oil return deduction cap.Oil return deduction cap is connected to the first oil return pipe by buckle structure
On.Buckle structure includes the fixture block 6.5.3 being arranged on the first oil return pipe lateral surface and is arranged in oil return deduction cap and and fixture block
The hole clipping 6.5.4 being engaged.First oil return pipe is located at the outside of separator shell.The upper port of first oil return pipe and the first oil return
Hole is tightly connected, and the lower port of the first oil return pipe is located in oil return deduction cap.The upper surface of oil return deduction cap is provided with oil return breach
6.5.5, and oil return breach floor height higher than the first oil return pipe lower port height.
As shown in Fig. 2, Fig. 5, whirlwind oil-returning structure includes the whirlwind oil returning tube being arranged on separator shell and is arranged on
Discharge pipe 7.4 in whirlwind oil returning tube.The upper and lower ends closing of whirlwind oil returning tube.Whirlwind oil returning tube includes superposed cylinder
Portion 7.1 and the cone cylinder portion 7.2 positioned at bottom.Cylindrical portion is arranged on lower house with cone cylinder portion, and cylindrical portion, cone cylinder portion and lower casing
Body is integrated injection molding structure.The upper surface of whirlwind oil returning tube is made up of the bottom surface of middle housing.Cylindrical portion and cone cylinder portion are coaxial.
The internal diameter in cone cylinder portion is gradually reduced from top to bottom.Cylindrical portion is located in air-fuel mixture passage.The bottom in cone cylinder portion is mixed positioned at oil gas
Close the lower section of passage.
The tangential entry 7.6 of air-fuel mixture passage and whirlwind oil return tube inner chamber is communicated with the side of cylindrical portion, and is cut
To the upper end of the close whirlwind oil returning tube of import.The upper end of whirlwind oil returning tube is provided with the air outlet being connected with gas outlet channels
7.5.Discharge pipe is coaxial with cylindrical portion, and the upper port of discharge pipe is tightly connected with air outlet.Discharge pipe is integrated with middle housing
Injection molding structure.The lower end of whirlwind oil returning tube is provided with the second spill port 7.3.The second oil return is additionally provided with the outside of separator shell
Pipe 3.The upper end of second oil return pipe is tightly connected with the second spill port.The lower end of second oil return pipe is provided with oil return valve 3.1.
As shown in Figure 1, Figure 2, shown in Fig. 6, Fig. 7, gas outlet channels are provided with one-way valve structures 9 and PRV valves 2.Gas is discharged
The end of passage is provided with gas discharge end mouthful 8.1.One-way valve structures and PRV valves are located between air outlet and gas discharge end mouthful.
One-way valve structures are located between PRV valves and gas discharge end mouthful.
One-way valve structures include the partition panel 9.1 being arranged in gas outlet channels；It is arranged on the valve block in the middle part of partition panel
Mounting rod 9.4；And it is set on the rubber valve plate 9.3 on valve block mounting rod.Valve block mounting rod is located at gas discharge end mouthful
The same side of partition panel.The side of valve block mounting rod and the partition panel where the valve block mounting rod is perpendicular.On valve block mounting rod
Provided with valve block baffle plate 9.5.Valve block baffle plate is connected by welding with valve block mounting rod.
Partition panel separates gas outlet channels.Partition panel and airflow direction in gas outlet channels are perpendicular.
Partition panel is provided with the valve opening 9.2 through partition panel opposite sides face.The side of partition panel is provided with annular projection 9.6 and outside
Annular protrusion 9.7.Annular is raised, outer annular protrusion and valve block mounting rod are positioned at the same side of partition panel.Annular projection position
In in outer annular protrusion.It is raised interior that valve block mounting rod is located at annular.Annular projection is coaxially distributed with valve block mounting rod.Inner ring
Shape projection is coaxially distributed with outer annular protrusion.It is raised between outer annular protrusion that valve opening is located at annular.
Rubber valve plate, which is used to seal, hides valve opening.Rubber valve plate center is provided with valve block mounting hole, and valve block mounting rod is plugged in valve block
In mounting hole.Rubber valve plate is located between valve block baffle plate and partition panel.And rubber valve plate can be moved along the axial direction of valve block mounting rod
It is dynamic.The internal diameter of valve block mounting hole is less than the raised internal diameter of annular, and the external diameter of rubber valve plate is more than the external diameter of outer annular protrusion.
The specific works of the Combined oil gas separator of the present embodiment are as follows：
First；Air-fuel mixture gas in crankcase is entered in air-fuel mixture passage by mixed gas import.
Second, the air-fuel mixture gas in air-fuel mixture passage carries out oil gas one-level separation by smart isolating construction first,
The oil gas one-level separation process of smart isolating construction is as follows：
Air-fuel mixture gas in air-fuel mixture passage mixes oil gas after essence separation dividing plate, essence separation through hole and skimming baffle
The machine oil for closing gas is separated with gas, and the machine oil isolated is gathered in oil drain tank under Gravitative Loads；Then, pass through first time
Oilhole and the first oil return pipe are flowed into oil return deduction cap and are gathered in oil return deduction cap, when the machine oil liquid level being gathered in oil return deduction cap
When being highly higher than the floor height of oil return breach, the machine oil in oil return deduction cap will be flowed out in crankcase and flowed back to by oil return breach
Oil sump；In this process, due to height of the floor height higher than the lower port of the first oil return pipe of oil return breach, aggregation is worked as
When machine oil in oil return deduction cap is flowed out by oil return breach, the machine oil in oil return deduction cap will cover the lower port of the first oil return pipe,
The lower port of first oil return pipe is sealed, so that avoid the gas in crankcase from entering gs-oil separator by the first spill port,
The problem of influenceing the separative efficiency of gs-oil separator.
3rd, oil gas the second-order separation, the oil gas the second-order separation process of whirlwind oil-returning structure are carried out by whirlwind oil-returning structure
It is as follows：
Air-fuel mixture gas in air-fuel mixture passage is entered by tangential entry in the cylindrical portion on whirlwind oil returning tube top, tangentially
Air-fuel mixture gas is introduced tangentially into cylindrical portion by import, and air-fuel mixture gas forms adherent rotary motion in cylindrical portion, around rotation
Wind oil returning tube inwall gradually down rotates, and the oil droplet with larger centrifugal inertial force is got rid of to whirlwind oil returning tube inwall, oil droplet exists
Slide and discharged by the second spill port, the second oil return pipe and oil return valve along whirlwind oil returning tube inwall under Action of Gravity Field；And gas
It will be discharged to by discharge pipe and air outlet in gas outlet channels；Gas in gas outlet channels passes sequentially through PRV valves, list
Discharged to valve arrangement and gas discharge end mouthful；So as to which the machine oil in air-fuel mixture gas be separated with gas.
On the other hand, in the gs-oil separator course of work, as shown in fig. 6, the gas outlet channels on the right side of partition panel
When interior air pressure is more than the air pressure in the gas outlet channels on the left of partition panel, rubber valve plate is moved left along valve block mounting rod is past,
And the axial movement stroke of rubber valve plate is limited by valve block baffle plate；Now valve opening is opened, and the gas discharge on the right side of partition panel is logical
Gas in road is discharged on the left of partition panel by valve opening, and is discharged by the gas discharge end mouthful of gas outlet channels.Work as cut-off
When the air pressure in gas outlet channels on the left of plate is more than the air pressure in the gas outlet channels on the right side of partition panel, then rubber valve plate
It is resisted against annular raised with outer annular protrusion, valve opening being closed, it is to avoid the gas backstreaming in gas outlet channels.The present invention
One-way valve structures realize the keying of one-way valve structures using the pressure change in the gas outlet channels of partition panel both sides, its
It is not only simple in structure compact, low manufacture cost, and and conventional one-way valve（The keying of conventional one-way valve and service life directly by
Spring influences）Compare, keying and the service life portion of the one-way valve structures of this programme are influenceed by spring.
Embodiment 2, remaining structure of the present embodiment is with reference to embodiment 1, and its difference is：
As shown in figure 8, the medial surface in cone cylinder portion 7.2 is provided with the turbulent band 7.7 of annular.Annular turbulent flow band is located at the inner side in cone cylinder portion
The middle part or middle and upper part in face.Annular turbulent flow band is made up of some grooves being located on the medial surface in cone cylinder portion.Annular turbulent flow band
Groove is densely arranged.
Applicant has found in the analysis that studies for a long period of time：It is down in rotary moving in inwall of the air-fuel mixture gas along cone cylinder portion
During, because the internal diameter in cone cylinder portion is gradually reduced, the rotating speed of air-fuel mixture gas will gradually increase（Linear velocity constant is not
Become）, although the rotating speed increase of air-fuel mixture gas is conducive to improving oil gas separation, but then, air-fuel mixture gas
Rotating speed it is faster, then disengaging time is shorter under identical stroke, without enough disengaging times（Fluid does not divide fully
From）Oil gas separation can be reduced again；So for the oil gas separation for further improving cone cylinder portion, applicant is in cone cylinder portion
The middle and upper part of medial surface the turbulent band of annular is set, in inwall of the air-fuel mixture gas along cone cylinder portion is down in rotary moving, when
When the air-fuel mixture gas of downward spiral is by annular turbulent flow band, it on the one hand can contain that the rotating speed of air-fuel mixture gas continues to increase
Greatly, so as to improve the Oil-gas Separation time of air-fuel mixture gas, air-fuel mixture gas energy in the case where keeping higher rotation speed is made
Enough there is the longer time to carry out Oil-gas Separation, improve oil gas separation；On the other hand, fuel-air mixture shows consideration for annular turbulent flow
During band operation, so that oil droplet is attached directly on groove medial surface, will further it be carried on the groove for impinging upon annular turbulent band
High oil gas separation；After air-fuel mixture gas crosses annular turbulent flow band, the rotating speed of fuel-air mixture gradually increases again, enters
Row oil gas is secondary to be efficiently separated；It so, it is possible while oil-gas separation efficiency is had little influence on, effectively to improve Oil-gas Separation
Effect.
Embodiment 3：Remaining structure of the present embodiment is with reference to embodiment 1 or embodiment 2, its difference：
As shown in figure 9, the first oil return pipe and the axis vertical of oil return deduction cap are set.On oil return deduction cap 6.5.2 medial surface and position
Annular stop block 6.5.6 is provided with the lower section of oil return breach.Horizontal float dividing plate 6.5.7 is arranged with first oil return pipe.Level
The first oil return pipe via is provided with the middle part of float partition, the internal diameter of the first oil return pipe via is slightly larger than the external diameter of the first oil return pipe.The
One oil return pipe passes through the first oil return pipe via.Horizontal float dividing plate can fluctuate along the first oil return pipe.Horizontal float dividing plate
It is supported on annular stop block.Horizontal float dividing plate horizontal float dividing plate is located at the lower section of oil return breach.Horizontal float dividing plate
External diameter is slightly less than the internal diameter of oil return deduction cap.The buoyancy of horizontal float dividing plate is more than gravity.
When being less than the lower port of the first oil return pipe due to the machine oil liquid level in oil return deduction cap, the gas in crankcase is still
Gs-oil separator can be entered by the first spill port, the separative efficiency of gs-oil separator is influenceed；To this present embodiment to reality
The self sealss oil-returning structure applied in example 1 is further improved, on the premise of the smooth oil return of gs-oil separator is not influenceed, effectively
Solve this problem.
When machine oil liquid level in oil return deduction cap is less than the lower port of the first oil return pipe, because horizontal float dividing plate is by first
Gap envelope between oil return pipe and oil return deduction cap hides, so as to avoid the gas in crankcase from passing through the first oil return pipe and the first oil return
Hole enters gs-oil separator.During the machine oil liquid level in oil return deduction cap gradually rises, the machine oil in oily deduction cap will first overflow
The lower port of the first oil return pipe is crossed, the lower port of the first oil return pipe is sealed；Then the random oil level of horizontal float dividing plate is together
Rise, when horizontal float dividing plate is risen to above the bottom surface of oil return breach, the machine oil in oil return deduction cap will be by oil return breach stream
Go out into crankcase cocurrent oil return drain pan.
Claims (10)
1. a kind of Combined oil gas separator, it is characterized in that, including：
Air-fuel mixture passage, gas outlet channels are provided with separator shell, separator shell and are connected with air-fuel mixture passage
Logical mixed gas import；
The smart isolating construction on separator shell is arranged on, smart isolating construction includes being arranged on the essence separation in air-fuel mixture passage
Dividing plate and be located on the bottom surface of air-fuel mixture passage and with the essence oil drain tank that to separate dividing plate corresponding, if essence separation dividing plate provided with
Dry essence separation through hole, the bottom surface of oil drain tank is provided with the first spill port；And
The whirlwind oil-returning structure on separator shell is arranged on, and smart isolating construction is located at mixed gas import and whirlwind oil return knot
Between structure；
The whirlwind oil-returning structure includes the whirlwind oil returning tube being arranged on separator shell and is arranged in whirlwind oil returning tube
Discharge pipe, the whirlwind oil returning tube include superposed cylindrical portion with positioned at bottom cone cylinder portion, cone cylinder portion it is interior without leave on
And under be gradually reduced, the tangential entry of air-fuel mixture passage and whirlwind oil return tube inner chamber is communicated with the side of cylindrical portion, and
Tangential entry is close to the upper end of whirlwind oil returning tube, and the upper end of whirlwind oil returning tube is provided with the air-out being connected with gas outlet channels
Mouthful, the lower end of whirlwind oil returning tube is provided with the second spill port, and the discharge pipe and cylindrical portion are coaxial, and discharge pipe upper port with going out
Air port is tightly connected.
2. a kind of Combined oil gas separator according to claim 1, it is characterized in that, the smart isolating construction should include setting
Put self sealss oil-returning structure on separator shell and corresponding with oil drain tank；The self sealss oil-returning structure include be in above and below
First oil return pipe of extension and the oil return deduction cap being set on the first oil return pipe, upper end open, the lower end seal of the oil return deduction cap
Close, first oil return pipe is located at the outside of separator shell, the upper port of the first oil return pipe is tightly connected with the first spill port,
The lower port of first oil return pipe is located in oil return deduction cap.
3. a kind of Combined oil gas separator according to claim 2, it is characterized in that, on the upper surface of the oil return deduction cap
Floor height provided with oil return breach, and oil return breach is higher than the height of the lower port of the first oil return pipe.
4. a kind of Combined oil gas separator according to Claims 2 or 3, it is characterized in that, first oil return pipe is with returning
The axis vertical of oily deduction cap is set, and annular stop block is provided with the medial surface of oil return deduction cap and positioned at the lower section of oil return breach, the
Horizontal float dividing plate is arranged with one oil return pipe, horizontal float membrane support is on annular stop block, and horizontal float dividing plate is located at
The lower section of oil return breach, the buoyancy of horizontal float dividing plate is more than gravity.
5. a kind of Combined oil gas separator according to claim 1 or 2 or 3, it is characterized in that, the separator shell
Outside is additionally provided with the second oil return pipe, and the upper end of the second oil return pipe is tightly connected with the second spill port, and the lower end of the second oil return pipe is set
There is oil return valve.
6. a kind of Combined oil gas separator according to claim 1 or 2 or 3, it is characterized in that, the inner side in the cone cylinder portion
Face is made up of provided with the turbulent band of annular, annular turbulent flow band some grooves being located on the medial surface in cone cylinder portion.
7. a kind of Combined oil gas separator according to claim 6, it is characterized in that, the annular turbulent flow band is located at cone cylinder
The middle part or middle and upper part of the medial surface in portion.
8. a kind of Combined oil gas separator according to claim 1 or 2 or 3, it is characterized in that, the gas outlet channels
One-way valve structures are provided with, one-way valve structures include the partition panel being arranged in gas outlet channels, and partition panel discharges gas
Passageway break, partition panel is provided with the valve opening through partition panel opposite sides face；
The valve block mounting rod in the middle part of partition panel is arranged on, valve block mounting rod is provided with valve block baffle plate；And
Be set on valve block mounting rod be used for seal hide described in valve opening rubber valve plate, rubber valve plate be located at valve block baffle plate with every
Between disconnected plate, and rubber valve plate can along valve block mounting rod axial movement.
9. a kind of Combined oil gas separator according to claim 8, it is characterized in that, the side of the partition panel is provided with
Annular projection and outer annular protrusion, annular projection, outer annular protrusion and valve block mounting rod are located at the same side of partition panel, interior
Annular protrusion is located in outer annular protrusion, valve block mounting rod be located at annular it is raised in, the valve opening be located at annular it is raised with
Between outer annular protrusion.
10. a kind of Combined oil gas separator according to claim 1 or 2 or 3, it is characterized in that, the separator shell
Including the upper shell, middle housing and lower house being sequentially distributed from top to bottom, the gas outlet channels are located at upper shell and middle shell
Between body, air-fuel mixture passage is located between middle housing and lower house, and air-fuel mixture passage is being located at gas outlet channels just
Lower section.
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| CN201611229063.XA CN106968758B (en) | 2016-12-27 | 2016-12-27 | Combined oil-gas separator |
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| CN201611229063.XA CN106968758B (en) | 2016-12-27 | 2016-12-27 | Combined oil-gas separator |
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| CN106968758B CN106968758B (en) | 2022-09-20 |
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| CN114458420A (en) * | 2022-02-10 | 2022-05-10 | 河北工业大学 | Oil-gas separator of inserting plate type engine |
| CN116291800A (en) * | 2023-03-21 | 2023-06-23 | 重庆长安汽车股份有限公司 | Engine crankcase ventilation system, engine oil water content adjusting method and vehicle |
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Address after: 315408 788 Tanjialing West Road, Yuyao City, Ningbo City, Zhejiang Province Applicant after: SHENTONG TECHNOLOGY GROUP Co.,Ltd. Address before: 315408 788 Tanjialing West Road, Yuyao City, Ningbo City, Zhejiang Province Applicant before: NINGBO SHENTONG MOULD & PLASTIC Co.,Ltd. |
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