CN101943040A - Bent axle box ventilation labyrinth - Google Patents
Bent axle box ventilation labyrinth Download PDFInfo
- Publication number
- CN101943040A CN101943040A CN 201010295567 CN201010295567A CN101943040A CN 101943040 A CN101943040 A CN 101943040A CN 201010295567 CN201010295567 CN 201010295567 CN 201010295567 A CN201010295567 A CN 201010295567A CN 101943040 A CN101943040 A CN 101943040A
- Authority
- CN
- China
- Prior art keywords
- main body
- gas
- dividing plate
- diaphragm
- oil
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 23
- 238000005192 partition Methods 0.000 claims description 29
- 210000003027 ear inner Anatomy 0.000 claims 8
- 238000000926 separation method Methods 0.000 abstract description 10
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 25
- 230000000087 stabilizing effect Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 238000005119 centrifugation Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
Images
Abstract
The invention provides a bent axle box ventilation labyrinth with simple structure and good oil gas separating effect. The main body of the labyrinth is a cuboid cavity; the main body has an air outlet and an air inlet; multiple groups of diaphragms are arranged between the air inlet and the air outlet in the cavity at intervals; each group of diaphragms is composed of a first diaphragm close to the direction of the air inlet and a second diaphragm close to the direction of the air outlet; the distance of the first diaphragm and the second separation is 2-10mm; a first gas passing clearance is arranged between the top part of the first diaphragm and the top plate of the main body; a through hole is arranged at the center of the first diaphragm; a second gas passing clearance is arranged between the side of the diaphragm and the side plate of the main body; oil returning holes are arranged at the bottoms of the first diaphragm and the second diaphragm; the bent axle box ventilation labyrinth of the invention utilizes the clearances formed between the inner wall of the main body and the diaphragm and between the diaphragms as oil and gas flowing channels to lead oil and gas to flow in the narrow clearances, thus increasing the contact areas and crashing times between the oil and gas and the diaphragm as well as between the oil and gas and the inner wall of the main body, and improving the effect of oil and gas separation.
Description
Technical field
The invention belongs to the crankcase ventilation system of engine art, specially refer to the crankcase ventilation labyrinth in the crankcase ventilation system.
Background technique
The crankcase ventilation labyrinth of existing structure is by arranging that the oily dividing plate of retaining makes oil gas flow to be adsorbed on the wall and by making air-flow change direction along wall the oil in the oil gas is formed the gentle separation of oil by centrifugation, usually arrange that the oily dividing plate distance of retaining is far away, make oil gas along wall flow effect and the air-flow DeGrain that turns round, oil gas separation is not so good, in addition in order to increase the area of contact of air-flow and dividing plate, need the dividing plate quantity that increase, cost is higher more.When the Oil-gas Separation efficient in labyrinth is not high, need to increase again in addition to arrange that deaerator comes separated oil, increase part and cost.Original in addition labyrinth also needs to design independent drainback passage and takes the oil gas insulating measure, has also caused on the structure complicated.
Summary of the invention
The objective of the invention is to propose a kind of crankcase ventilation labyrinth of simple in structure, good oil gas separation effect.
The main body of crankcase ventilation labyrinth of the present invention is a rectangular-shaped cavity, and the top of described main body has exhaust outlet, and the bottom has intake grill; Key is to be arranged at intervals with between inherent intake grill of described cavity and the exhaust outlet many group dividing plates, and every group of dividing plate is by forming first dividing plate and second partition spacing 2～10mm near first dividing plate of intake grill direction, the second partition of close exhaust outlet direction; Have first between the top of described first dividing plate and the top board of described main body and cross the gas gap, the central authorities of first dividing plate have through hole; Have second between the side of described second partition and the side plate of described main body and cross the gas gap; The bottom of described first dividing plate, second partition is provided with spill port.
Gas flow direction in the above-mentioned crankcase ventilation labyrinth is as follows: after oil gas enters from intake grill, at first flow to second partition by first through hole of crossing gas gap, first dividing plate, after being subjected to second partition and stopping, can between first dividing plate, second partition, clash into repeatedly, and flow to second of second partition both sides along the gap of first dividing plate and second partition and cross the gas gap, flow to the dividing plate of next group after the bending through 90 degree, up to flowing to the exhaust outlet place.The oil droplet of separating flows back to the intake grill place through spill port, finally flows back to oil sump.Because the spacing of first dividing plate and second partition is nearer, force oil gas pasting dividing plate and flow, strengthen the oil gas adsorption rate, gas must strengthen the effect of Oil-gas Separation greatly through the bending of 90 degree in flow process simultaneously.First crosses the gas gap is arranged on the top, and air-flow is from top to bottom flowed, and the machine oil that helps to adsorb on the dividing plate flows downward, reclaims.
The side of described second partition both sides has the flanging towards the exhaust outlet direction, and described flanging is parallel with the side plate of described main body.Flanging has prolonged the flow path of oil gas in catwalk, has increased the area of contact of oil gas and dividing plate, helps to strengthen the effect of Oil-gas Separation.
Described intake grill place is provided with oblique baffle plate, and the intake grill that forms with main body of described baffle plate is back to exhaust outlet one side, like this when oil gas when intake grill enters, at first can strike on the baffle plate, changed the direction of oil gas, help Oil-gas Separation.
Have the 3rd between the side of described first dividing plate and the side plate of described main body and cross the gas gap, have the 4th between the top of described second partition and the top board of described main body and cross the gas gap.The 3rd cross gas gap, the 4th cross the gas gap can be big at engine load, oil and gas content provides auxiliary gas channel in big, avoids influencing engine performance.
Crankcase ventilation labyrinth of the present invention is provided with many group dividing plates, and utilize between main body inner wall and the dividing plate, between dividing plate and the dividing plate formed gap as the passage of flowing through of oil gas, oil gas is flowed in narrow gap, increase the area of contact and the collision frequency of oil gas and dividing plate and main body inner wall, thereby improved the effect of Oil-gas Separation.
Description of drawings
Fig. 1 is the forward sectional view of crankcase ventilation labyrinth of the present invention;
Fig. 2 is the B-B sectional view of Fig. 1;
Fig. 3 is the A-A sectional view of Fig. 1.
Embodiment
Describe the present invention in detail below in conjunction with specific embodiments and the drawings.
As shown in Figure 1, 2, 3, the main body of the crankcase ventilation labyrinth of present embodiment is a rectangular-shaped cavity that is surrounded by valve chamber cover 1 and coaming plate 2, and the center of top of main body has exhaust outlet 3, and two bottom sides has intake grill 4; All be arranged at intervals with two groups of dividing plates between exhaust outlet 3 and each intake grill 4, every group of dividing plate is by form first dividing plate 5 and second partition 6 spacings 2～10mm near first dividing plate 5 of intake grill 4 directions, the second partition 6 of close exhaust outlet 3 directions; The central authorities that have the first mistake gas gap, 9, the first dividing plates 5 of 1～10mm between the cover plate of the top of first dividing plate 5 and valve chamber cover 1 have the through hole 10 that diameter is 1～15mm; Have second of 1～10mm between the side plate of the side of second partition 6 and valve chamber cover 1 and cross gas gap 16.
The side of second partition 6 both sides has the flanging 8 towards exhaust outlet 3 directions, and flanging 8 is parallel with the side plate of valve chamber cover 1.
Intake grill 4 places are provided with oblique baffle plate 7, and the true dip direction of baffle plate 7 makes intake grill back to exhaust outlet 3 one sides.
Have the 3rd between the side plate of the side of first dividing plate 5 and valve chamber cover 1 and cross gas gap 15, have the 4th between the top board of the top of second partition 6 and valve chamber cover 1 and cross gas gap 13.The 3rd crosses gas gap the 15, the 4th crosses gas gap 13 less than 1mm.
The 3rd mistake gas gap 15, second bottom of crossing gas gap 16 constitute the spill port of first dividing plate, second partition.
Form near first pressure stabilizing cavity 11 of intake grill 4 directions and second pressure stabilizing cavity 12 of close exhaust outlet 3 directions between above-mentioned many group dividing plates.
Gas flow direction in the above-mentioned crankcase ventilation labyrinth is as follows: after oil gas enters from intake grill 4, at first can strike on the baffle plate 7 and change direction, flow to the end wall of main body, through reflection, cross gas gap 9 by first again after compiling, the through hole 10 of first dividing plate flows to second partition 6, after being subjected to second partition 6 and stopping, can be at first dividing plate 5, clash into repeatedly between the second partition 6, and flow to second of second partition both sides along the gap 14 of first dividing plate and second partition and cross gas gap 16, flow to first pressure stabilizing cavity 11 after the bending through 90 degree, and then flow to the dividing plate and second pressure stabilizing cavity 12 of next group, flow out by exhaust outlet 3 at last.The oil droplet of separating flows back to intake grill 4 places through the 3rd mistake gas gap 15, second bottom of crossing gas gap 16, finally flows back to oil sump.
Claims (8)
1. crankcase ventilation labyrinth, its main body is a rectangular-shaped cavity, the top of described main body has exhaust outlet, the bottom has intake grill, it is characterized in that being arranged at intervals with between inherent intake grill of described cavity and the exhaust outlet many group dividing plates, every group of dividing plate is by forming first dividing plate and second partition spacing 2～10mm near first dividing plate of intake grill direction, the second partition of close exhaust outlet direction; Have first between the top of described first dividing plate and the top board of described main body and cross the gas gap, the central authorities of first dividing plate have through hole; Have second between the side of described second partition and the side plate of described main body and cross the gas gap; The bottom of described first dividing plate, second partition is provided with spill port.
2. crankcase ventilation labyrinth according to claim 1, the side that it is characterized in that described second partition both sides has the flanging towards the exhaust outlet direction, and described flanging is parallel with the side plate of described main body.
3. crankcase ventilation labyrinth according to claim 2 is characterized in that described intake grill place is provided with oblique baffle plate, and the intake grill that described baffle plate and main body form is back to exhaust outlet one side.
4. according to claim 1 or 2 or 3 described crankcase ventilation labyrinths, it is characterized in that having the 3rd between the side plate of the side of described first dividing plate and described main body crosses the gas gap, has the 4th mistake gas gap between the top of described second partition and the top board of described main body.
5. crankcase ventilation labyrinth according to claim 4 is characterized in that described the 3rd mistake gas gap, the 4th mistake gas gap are less than 1mm.
6. according to claim 1 or 2 or 3 described crankcase ventilation labyrinths, it is characterized in that described intake grill has two, is symmetricly set in the both sides of exhaust outlet.
7. according to claim 1 or 2 or 3 described crankcase ventilation labyrinths, it is characterized in that it is 1～10mm that the gas gap is crossed in the described first mistake gas gap, second.
8. according to claim 1 or 2 or 3 described crankcase ventilation labyrinths, the through-hole diameter that it is characterized in that described first dividing plate is 1～15mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102955678A CN101943040B (en) | 2010-09-27 | 2010-09-27 | Bent axle box ventilation labyrinth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102955678A CN101943040B (en) | 2010-09-27 | 2010-09-27 | Bent axle box ventilation labyrinth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943040A true CN101943040A (en) | 2011-01-12 |
| CN101943040B CN101943040B (en) | 2012-05-23 |
Family
ID=43435218
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010102955678A Active CN101943040B (en) | 2010-09-27 | 2010-09-27 | Bent axle box ventilation labyrinth |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101943040B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703998A (en) * | 2016-12-21 | 2017-05-24 | 中国燃气涡轮研究院 | Laminated restrictor |
| CN107910791A (en) * | 2017-12-26 | 2018-04-13 | 索凌电气有限公司 | A kind of distribution box and its ventilation chamber door |
| CN109707484A (en) * | 2017-10-25 | 2019-05-03 | 丰田纺织株式会社 | Oil eliminator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988544A (en) * | 1995-09-29 | 1997-03-31 | Tenetsukusu:Kk | Oil mist separator |
| JP2005337123A (en) * | 2004-05-27 | 2005-12-08 | Daihatsu Motor Co Ltd | Oil separation device of blow-by gas in internal combustion engine |
| JP2008157047A (en) * | 2006-12-21 | 2008-07-10 | Mahle Filter Systems Japan Corp | Oil-mist separator in blowby gas duct in internal combustion engine |
| CN101363345A (en) * | 2008-09-17 | 2009-02-11 | 奇瑞汽车股份有限公司 | Labyrinth type oil-gas separating structure in cover of engine spiracular atrium |
| WO2010050367A1 (en) * | 2008-10-28 | 2010-05-06 | 三菱重工業株式会社 | Gas engine lubrication apparatus |
-
2010
- 2010-09-27 CN CN2010102955678A patent/CN101943040B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0988544A (en) * | 1995-09-29 | 1997-03-31 | Tenetsukusu:Kk | Oil mist separator |
| JP2005337123A (en) * | 2004-05-27 | 2005-12-08 | Daihatsu Motor Co Ltd | Oil separation device of blow-by gas in internal combustion engine |
| JP2008157047A (en) * | 2006-12-21 | 2008-07-10 | Mahle Filter Systems Japan Corp | Oil-mist separator in blowby gas duct in internal combustion engine |
| CN101363345A (en) * | 2008-09-17 | 2009-02-11 | 奇瑞汽车股份有限公司 | Labyrinth type oil-gas separating structure in cover of engine spiracular atrium |
| WO2010050367A1 (en) * | 2008-10-28 | 2010-05-06 | 三菱重工業株式会社 | Gas engine lubrication apparatus |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106703998A (en) * | 2016-12-21 | 2017-05-24 | 中国燃气涡轮研究院 | Laminated restrictor |
| CN109707484A (en) * | 2017-10-25 | 2019-05-03 | 丰田纺织株式会社 | Oil eliminator |
| CN109707484B (en) * | 2017-10-25 | 2021-07-06 | 丰田纺织株式会社 | Oil separator |
| DE102018124476B4 (en) | 2017-10-25 | 2022-10-06 | Toyota Boshoku Kabushiki Kaisha | OIL SEPARATOR |
| CN107910791A (en) * | 2017-12-26 | 2018-04-13 | 索凌电气有限公司 | A kind of distribution box and its ventilation chamber door |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101943040B (en) | 2012-05-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205714339U (en) | A kind of gs-oil separator | |
| RU2016101060A (en) | HEAT EXCHANGER | |
| CN101868287B (en) | Oil separator | |
| CN101943040B (en) | Bent axle box ventilation labyrinth | |
| JP2015031195A (en) | Oil mist separator | |
| JPH07243318A (en) | Oil mist separator | |
| WO2014007164A1 (en) | Oil separator | |
| CN202645675U (en) | Engine filter core type crankcase ventilation maze structure | |
| JP6359962B2 (en) | Oil separator | |
| CN201848166U (en) | Water distributing and draining device | |
| CN109340731B (en) | High-pressure steam drum with separator and high-pressure boiler with high-pressure steam drum | |
| JP4353473B2 (en) | Oil separation device for blow-by gas in internal combustion engines | |
| JP5495402B2 (en) | Oil separator | |
| CN204511570U (en) | Cylinder head cover diaphragm type gas and oil separating plant | |
| WO2008037561A1 (en) | Fuel filter | |
| WO2007015106A1 (en) | Separator | |
| CN205330763U (en) | Novel oil -gas separator | |
| CN110107378B (en) | Oil-gas separator | |
| CN203962100U (en) | A kind of gas-oil separation structure of engine | |
| CN202853218U (en) | Oil separator used for variable refrigerant volume (VRC) air conditioner system | |
| CN102900709A (en) | Gas-liquid separation structure for compressor | |
| JP2000274225A (en) | Oil separator for blow-by gas | |
| CN202012409U (en) | Cylinder head cover for engine | |
| CN205379694U (en) | Titanium separator | |
| CN203525448U (en) | Oil separator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |