CN104879190B - A kind of variable inlet section gs-oil separator - Google Patents
A kind of variable inlet section gs-oil separator Download PDFInfo
- Publication number
- CN104879190B CN104879190B CN201510187925.6A CN201510187925A CN104879190B CN 104879190 B CN104879190 B CN 104879190B CN 201510187925 A CN201510187925 A CN 201510187925A CN 104879190 B CN104879190 B CN 104879190B
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- gear
- section
- air inlet
- guide groove
- slide plate
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Abstract
The invention discloses a kind of variable inlet section gs-oil separator, including cyclone type oil-gas separator main body, air inlet pipeline section with guide groove, air inlet pipe section lid plate, slide plate, train of reduction gears, stepper motor, cyclone type oil-gas separator main body include gas outlet, cylindrical section, conical section and the oil-out being sequentially connected；Stepping motor gear is provided with stepper motor；Train of reduction gears includes the gear and lower gear being connected by gear shaft, the end of slide plate is one section of rack, and slide plate is arranged in air inlet pipeline section guide groove, and can be slided along guide groove in air inlet pipeline section, rack end is engaged with gear, and train of reduction gears lower gear engages with stepping motor gear.Adjustable slide plate is changed in the position of air inlet pipeline section, control air-flow velocity and then preferable separating effect according to engine operating condition.The present invention has separative efficiency height, adapts to the characteristics of air leak amount is with working conditions change.
Description
Technical field
A kind of device of mist of oil or solid particle in a kind of separation bubble of the present invention, and in particular to variable inlet section oil gas
Separator.
Background technology
Control of the increasingly strict automobile emission regulation to crankcase emissions proposes higher requirement.Existing exhaust method
Provided in rule, the gas scurried out in engine crankcase can not be exhausted directly in atmospheric environment, and should be oriented to by connecting tube into
The appropriate location of gas system, return to cylinder and rekindle, that is, take closed crankcase forced ventilation.But contain in crankcase gas blowby
Machine oil mist of oil, if be not effectively treated to it, machine oil will be attached on eddy pressurizer blade, the charge air cooler of gas handling system on the way
On wall, inlet valve wall and fuel injector secret nozzle, the service behaviour of each part of the above is influenceed, shortens its service life simultaneously
Reduce the Stability and dependability of engine.On the other hand, if machine oil mist of oil is burnt into cylinder, it is easy to cause cylinder
Interior carbon distribution, raises engine particulate emissions, increases the burden of exhaust after treatment system, reduces the operating efficiency of engine and makes
Use the life-span.Therefore, mist of oil in gas blowby efficiently separate using gs-oil separator and seem very necessary.
Widely used gs-oil separator is mostly the passive type gs-oil separator without outside energy input currently on the market,
Mainly include two kinds of labyrinth type oil-gas separator and cyclone type oil-gas separator.The labyrinth type oil-gas separator pressure loss is small, and
Cost is relatively low, but its structure is not compact, and can only the larger oil mist particles of particle separation diameter, low separation efficiency.Cyclone type oil gas
Although separator can separate smaller oil mist particles and can obtain higher oil-gas separation efficiency, because it is to pass through gas
Stream is separated oil droplet in centrifugal force caused by separator interior rotation, so overall separation efficiency is influenceed by gas flow rate
Seriously.Automobile-used cyclone type oil-gas separator based on corresponding air leak amount under conventional operating mode generally to carry out structure design, but this
Sample causes separator to separate poor effect in low air leak amount, and the pressure loss is too high under high air leak amount.Engine is normally being transported
Air leak amount is not unalterable during row, thus the above-mentioned inherent shortcoming of whirlwind separator is complete in engine by restriction
Optimal separating property is played in condition range.
The content of the invention
It is an object of the invention to provide a kind of variable inlet section gs-oil separator so that in the range of engine full working scope
Oil gas is efficiently separated.
To achieve the above object, technical scheme is described as follows：
A kind of variable inlet section gs-oil separator, including cyclone type oil-gas separator main body, the air inlet with guide groove
Pipeline section, air inlet pipe section lid plate, slide plate, train of reduction gears, stepper motor, cyclone type oil-gas separator main body include what is be sequentially connected
Gas outlet, cylindrical section, conical section and oil-out；Stepping motor gear is provided with stepper motor；Train of reduction gears includes passing through
The gear and lower gear that gear shaft is connected, the end of slide plate is one section of rack, and slide plate is arranged in air inlet pipeline section guide groove,
And can be slided along guide groove in air inlet pipeline section, rack end is engaged with gear, train of reduction gears lower gear and stepper motor tooth
Wheel engagement.
In the above-mentioned technical solutions,
Air inlet pipeline section is set along whirlwind separator body cylindrical section outer wall tangent to periphery direction, and and whirlwind separator
Main body is affixed.
Air inlet pipeline section medial surface extends outward one section of guide groove, and groove width is identical with slide plate width, groove depth and slide plate height
Unanimously, the groove communicates and in an acute angle with air flue in air inlet pipeline section, limits slide plate single dof mobility.
Air inlet pipe section lid plate is connected with air inlet pipeline section, and is fitted with whirlwind separator body cylindrical section.
Slide plate is made up of leading portion and back segment, and leading portion is located in air inlet pipeline section air flue, parallel with air intake duct madial wall；Section afterwards
In in guide groove, coordinate with guide groove inner surface into gap；Back segment end sets rack, and tooth form is straight-tooth.
Gear and lower gear are two coaxial straight spur gears, and wherein gear is identical with rack modulus, lower tooth
Wheel is identical with stepping motor gear modulus；The diameter of gear is less than the diameter of lower gear.
Gear and lower gear use key connection with gear shaft.
Stepping motor gear is connected with by motor shaft on stepper motor；Stepping motor gear is connected with motor shaft using key
Connect.
The beneficial effects of the invention are as follows：The present invention is realized air intake duct and effectively circulated by motion of the slide plate along guide groove
The change of area, higher oil gas point can be met according to crankcase gas leakage flexible modulation slide plate position in actual applications
From the induction air flow ratio demand corresponding to efficiency, good oil gas separation can be reached under engine full working scope.Using step
The method that stepper motor drives reduction gearing, it is simple in construction, it is easy to accomplish, the reliability and stability of transmission system had both been ensure that,
And can makes the electrodeless continuous motion of slide plate, has heightened the accuracy of system control.So the present invention have oil-gas separation efficiency it is high,
The characteristics of air leak amount is with working conditions change is adapted to, the rigors that Abgasgesetz proposes to crankcase Oil-gas Separation is solved, has
Higher cost performance, it is applicable to various engines.
Brief description of the drawings
Fig. 1 is the structure axonometric drawing of variable inlet section of the present invention gs-oil separator；
Fig. 2 is the structural front view of variable inlet section of the present invention gs-oil separator；
Fig. 3 is sectional views of the Fig. 2 along Section A-A.
In figure, 1. air inlet pipe section lid plates, 2. air inlet pipeline sections, 3. slide plates, 4. train of reduction gears, 5. stepper motors, 6. steppings
Motor gear, 7. cyclone type oil-gas separator main bodys, 8. racks, 9. reduction gear shafts, 10. step motor shafts, 11. gas outlets,
12. cylindrical section, 13. conical sections, 14. oil-outs, 15. guide grooves.
Embodiment
With reference to embodiment, the present invention is described in detail.
The present invention provides a kind of variable inlet section gs-oil separator, as shown in figure 1, including cyclone type oil-gas separator master
Body 7, the air inlet pipeline section 2 with guide groove, air inlet pipe section lid plate 1, slide plate 3, train of reduction gears 4, stepper motor 5, cyclone type oil
Gas separating device main body 7 includes gas outlet 11, cylindrical section 12, conical section 13 and the oil-out 14 being sequentially connected；Set on stepper motor 5
It is equipped with stepping motor gear 6；Train of reduction gears 4 includes the gear and lower gear being connected by gear shaft 9, as shown in figure 3,
The end of slide plate 3 is one section of rack 8, and slide plate 3 is arranged in air inlet pipeline section guide groove 15, and can be along guide groove in air inlet pipeline section 2
Middle slip, rack end are engaged with gear, and train of reduction gears lower gear engages with stepping motor gear 6.Air inlet pipeline section 2 is along whirlwind
The cylindrical section outer wall tangent to periphery direction of formula separator main body 7 is set, and affixed with whirlwind separator main body 7.In air inlet pipeline section 2
Side extends outward one section of guide groove 15, and groove width is identical with slide plate width, and groove depth is highly consistent with slide plate, the groove and air inlet pipe
Air flue communicates and in an acute angle in section, limits slide plate single dof mobility.Air inlet pipe section lid plate 1 is connected with air inlet pipeline section 2 with bolt
Connect, and fitted with whirlwind separator body cylindrical section.Slide plate 3 is made up of leading portion and back segment, and leading portion is located at the gas of air inlet pipeline section 2
It is parallel with air intake duct madial wall in road；Back segment is located in guide groove 15, coordinates with guide groove inner surface into gap；Back segment end
Rack 8 is set, and tooth form is straight-tooth.Gear and lower gear are two coaxial straight spur gears, wherein gear and rack 8
Modulus is identical, and lower gear is identical with the modulus of stepping motor gear 6；The diameter of gear is less than the diameter of lower gear.Gear and
Lower gear uses key connection with gear shaft 9.Stepping motor gear 6 is connected with by motor shaft 10 on stepper motor 5；Stepper motor
Gear 6 uses key connection with motor shaft 10.
The cylindrical section tangent line of cyclone type oil-gas separator main body 7 extends air inlet pipeline section, and air inlet pipeline section 2 passes through bolt and air inlet
Pipeline section cover plate 1 is fixed.The inner side of air inlet pipeline section 2 sets guide groove 15, and slide plate 3 is arranged in guide groove, and can be transported along guide groove
Dynamic, the end of slide plate 3 be one section of rack 8, and rack 8 is meshed with gear in train of reduction gears 4, the lower gear of train of reduction gears 4 and
Stepping motor gear 6 is meshed, and reduction gearing uses key connection with gear shaft 9, and stepping motor gear 6 also uses with motor shaft 10
Key connection.Stepper motor 5 drives slide plate 3 to move by train of reduction gears, air intake duct net sectional area is changed.
As shown in Figures 2 and 3, at work, crankcase gas blowby is flowed into by the entrance of air inlet pipeline section 2, according to working as engine
Preceding actual condition regulation slide plate 3 position, when air leak amount is smaller, regulation slide plate 3 reduces air intake duct net sectional area, increases gas blowby
Flow velocity, reach the optimal inlet flow rate corresponding to higher oil-gas separation efficiency；When gas blowby quantitative change is big, regulation slide plate 3 increases
Big air intake duct net sectional area, makes gas blowby flow velocity equally meet the higher required optimal inlet flow rate of oil-gas separation efficiency.Enter
After entering cyclone type oil-gas separator main body 7, gas blowby is changed into circular motion from moving along a straight line, and downward along spiral inner wall, thus produces
The larger machine oil of density is thrown on separator internal face by raw centrifugal force, is gone out by the conical section of cyclone type oil-gas separator main body 7
Hydraulic fluid port flows out, gas then by center low-pressure area attraction by insertion tube stream above the cylindrical section of cyclone type oil-gas separator main body 7
Go out.Compared with traditional cyclone type oil-gas separator, the present invention can further improve oil-gas separation efficiency on the original basis, especially
It shows more preferably Oil-gas Separation performance under small air leak amount operating mode.During engine is run, draw according to engine operating condition
The air leak amount change risen, the rotation of closed-loop control step motor shaft, and then slide plate position is accurately controlled, adjust blowby gas inlet
Flow velocity, make its corresponding optimal oil-gas separation efficiency, realize efficiently separating for oil gas in the range of full working scope.
Embodiments of the present invention are explained in detail above in conjunction with accompanying drawing, but the present invention is not limited to above-mentioned embodiment party
Formula, in one skilled in the relevant art's possessed knowledge, many variations can also be made to it.
Claims (7)
1. a kind of variable inlet section gs-oil separator, including cyclone type oil-gas separator main body (7), the air inlet with guide groove
Pipeline section (2), air inlet pipe section lid plate (1), slide plate (3), train of reduction gears (4), stepper motor (5), the cyclone type Oil-gas Separation
Device main body (7) includes gas outlet (11), cylindrical section (12), conical section (13) and the oil-out (14) being sequentially connected；The stepping
Stepping motor gear (6) is provided with motor (5)；The train of reduction gears (4) includes the upper tooth being connected by gear shaft (9)
Wheel and lower gear, it is characterised in that the end of slide plate (3) is one section of rack (8), and slide plate (3) is arranged on air inlet pipeline section guide groove
(15) in, and can be slided along guide groove in the air inlet pipeline section (2), rack end is engaged with gear, train of reduction gears lower gear and
Stepping motor gear (6) engages；
The slide plate (3) is made up of leading portion and back segment, and leading portion is located in air inlet pipeline section (2) air flue, parallel with air intake duct madial wall；
Back segment is located in guide groove (15), coordinates with guide groove inner surface into gap；Back segment end sets rack (8), and tooth form is straight-tooth.
2. variable inlet section according to claim 1 gs-oil separator, it is characterised in that air inlet pipeline section (2) edge
Whirlwind separator main body (7) cylindrical section outer wall tangent to periphery direction is set, and affixed with whirlwind separator main body (7).
3. variable inlet section according to claim 1 gs-oil separator, it is characterised in that in the air inlet pipeline section (2)
Side extends outward one section of guide groove (15), and the groove width of the guide groove is identical with slide plate width, the groove depth of the guide groove
Highly consistent with slide plate, the guide groove is communicated with air flue in air inlet pipeline section and in an acute angle, limitation slide plate single dof mobility.
4. variable inlet section according to claim 1 gs-oil separator, it is characterised in that the air inlet pipe section lid plate
(1) it is connected with air inlet pipeline section (2), and is fitted with whirlwind separator body cylindrical section.
5. variable inlet section according to claim 1 gs-oil separator, it is characterised in that the gear and lower gear
For two coaxial straight spur gears, wherein gear is identical with rack (8) modulus, lower gear and stepping motor gear (6)
Modulus is identical；The diameter of the gear is less than the diameter of lower gear.
6. variable inlet section according to claim 1 gs-oil separator, it is characterised in that the gear and lower gear
Key connection is used with gear shaft (9).
7. variable inlet section according to claim 1 gs-oil separator, it is characterised in that on the stepper motor (5)
Stepping motor gear (6) is connected with by motor shaft (10)；The stepping motor gear (6) is connected with motor shaft (10) using key
Connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187925.6A CN104879190B (en) | 2015-04-20 | 2015-04-20 | A kind of variable inlet section gs-oil separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510187925.6A CN104879190B (en) | 2015-04-20 | 2015-04-20 | A kind of variable inlet section gs-oil separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104879190A CN104879190A (en) | 2015-09-02 |
| CN104879190B true CN104879190B (en) | 2017-12-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510187925.6A Expired - Fee Related CN104879190B (en) | 2015-04-20 | 2015-04-20 | A kind of variable inlet section gs-oil separator |
Country Status (1)
| Country | Link |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762032B (en) * | 2016-12-23 | 2018-11-27 | 吉林大学 | A kind of air inlet section type variable gs-oil separator |
| CN106762031A (en) * | 2016-12-23 | 2017-05-31 | 长春市奔腾动力科技有限公司 | Round entrance section-variable formula gs-oil separator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB259317A (en) * | 1925-07-11 | 1926-10-11 | Robert Traill | Improvements relating to the abstraction of lubricating oil from the oil vapour in the crank cases of diesel engines |
| EP0667444A1 (en) * | 1994-02-15 | 1995-08-16 | Firma Carl Freudenberg | Liquid separator |
| CN2328428Y (en) * | 1997-06-20 | 1999-07-14 | 庄学清 | Cyclone separator |
| CN101368499A (en) * | 2008-05-07 | 2009-02-18 | 奇瑞汽车股份有限公司 | Engine gas-oil separator and method thereof |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005106019A (en) * | 2003-10-01 | 2005-04-21 | Toyota Motor Corp | Oil separator and pcv system |
| JP5076841B2 (en) * | 2007-11-29 | 2012-11-21 | トヨタ自動車株式会社 | Oil separator |
| JP5757776B2 (en) * | 2011-04-15 | 2015-07-29 | ダイハツ工業株式会社 | Cylinder head structure |
-
2015
- 2015-04-20 CN CN201510187925.6A patent/CN104879190B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB259317A (en) * | 1925-07-11 | 1926-10-11 | Robert Traill | Improvements relating to the abstraction of lubricating oil from the oil vapour in the crank cases of diesel engines |
| EP0667444A1 (en) * | 1994-02-15 | 1995-08-16 | Firma Carl Freudenberg | Liquid separator |
| CN2328428Y (en) * | 1997-06-20 | 1999-07-14 | 庄学清 | Cyclone separator |
| CN101368499A (en) * | 2008-05-07 | 2009-02-18 | 奇瑞汽车股份有限公司 | Engine gas-oil separator and method thereof |
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| Publication number | Publication date |
|---|---|
| CN104879190A (en) | 2015-09-02 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171226 Termination date: 20190420 |
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| CF01 | Termination of patent right due to non-payment of annual fee |