CN201474750U - Novel crankcase ventilation system - Google Patents
Novel crankcase ventilation system Download PDFInfo
- Publication number
- CN201474750U CN201474750U CN2009201724700U CN200920172470U CN201474750U CN 201474750 U CN201474750 U CN 201474750U CN 2009201724700 U CN2009201724700 U CN 2009201724700U CN 200920172470 U CN200920172470 U CN 200920172470U CN 201474750 U CN201474750 U CN 201474750U
- Authority
- CN
- China
- Prior art keywords
- oil
- ventilation system
- deaerator
- valve
- pcv valve
- 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.)
- Expired - Fee Related
Links
- 238000009423 ventilation Methods 0.000 title claims abstract description 22
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 7
- 239000003921 oil Substances 0.000 description 12
- 210000003027 ear inner Anatomy 0.000 description 11
- 210000003128 head Anatomy 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000002153 concerted effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
Images
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model relates to a novel crankcase ventilation system which comprises a valve chamber cover, a maze, an oil-gas separator, a crankshaft ventilation tube and a PCV valve, and is characterized in that the maze, the oil-gas separator and the PCV valve are arranged on the valve chamber cover, and the PCV valve is arranged above the oil-gas separator; and because the maze, the oil-gas separator and the PCV valve are integrated on the valve chamber cover, the novel crankcase ventilation system reduces the number of pipes, optimizes the layout, saves the cost, has high oil-gas separation efficiency, and is not easy to leak oil.
Description
Technical field
The utility model relates to a kind of new type crank box ventilation system.
Background technique
Usually engine crankshaft ventilation system is by the labyrinth, the several independent parts of deaerator and PCV valve are formed, the labyrinth, connect by pipeline between deaerator and the PCV valve, and deaerator is a vortex type structure, this structure oil gas separation does not often reach requirement, and is relatively more difficult on the layout yet.
The model utility content
The utility model technical issues that need to address provide a kind of new type crank box ventilation system, efficient separation oil and gas, the purpose of simplification crankcase ventilation system.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of new type crank box ventilation system comprises valve chamber cover, labyrinth, deaerator, crankcase bleed pipe and PCV valve; It is characterized in that: described labyrinth, deaerator and PCV valve formation are wholely set at cyclinder head cover and cover, and described PCV valve is arranged on the top of deaerator.
A kind of new type crank box ventilation system is characterized in that: described deaerator is made of three cyclone type oil-gas separators.
A kind of new type crank box ventilation system is characterized in that: described deaerator bottom is provided with oil back chamber.
A kind of new type crank box ventilation system is characterized in that: the PVC valve of stating be connected with the bent axle ventilation duct.
A kind of new type crank box ventilation system, because the labyrinth, deaerator and PCV valve all are integrated in cyclinder head cover and cover, and have reduced pipeline, have optimized layout, provide cost savings, Oil-gas Separation efficient height is not prone to oil leakage phenomenon.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further details
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model labyrinth and deaerator structural drawing
In Fig. 1-2,1, the PCV valve; 2, spring; 3, PCV valve insertion; 4, valve chamber cover; 5, mixed gas inlet; 6, labyrinth; 7, deaerator; 8, oil back chamber; 9, crankcase bleed pipe.
Embodiment
Show as Fig. 1-2; A kind of crankcase ventilation system, comprise labyrinth 6, deaerator 7, PCV valve 1, labyrinth 6, deaerator 7, the PCV valve is integrated on the valve chamber cover 4 of motor, and deaerator 7 is that three cyclone type oil-gas separator monomers are formed, oil gas in the crankcase from oil sump by mixed gas inlet 5 labyrinths 6 that enter on the valve chamber cover 4, pre-separation by labyrinth 6 enters deaerator 7 then, under the vortex type centrifugal action, machine oil after the separation can be deposited to the oil back chamber 8 of deaerator 7 bottoms, after expiring, oil back chamber 8 can flow back into oil sump, and the gas after separating under the vortex type centrifugal action can enter into PCV valve insertion 3 by the aperture above the deaerator 7, if should locate making a concerted effort of pressure and spring 2 elastic force this moment greater than barometric pressure, then this pressure difference can be with the diaphragm jack-up at PCV valve 1 top, PCV valve 1 top membrane top has aperture to communicate with atmosphere, gas will enter into crankcase bleed pipe 9 in the slit below diaphragm, and gas directly enters engine intake manifold.When crankcase pressure too small, pressure difference is not enough to the diaphragm jack-up with PCV valve 1 top, then gas then can not enter into crankcase bleed pipe 9, so just controlled the crankcase internal pressure within certain scope, this structure separating oil up hill and dale is gentle, the separation effect height is difficult for occurring oil leakage phenomenon again.
Claims (4)
1. a new type crank box ventilation system comprises valve chamber cover (4), labyrinth (6), deaerator (7), bent axle ventilation duct (9) and PCV valve (1); It is characterized in that: described labyrinth (6), deaerator (7) and PCV valve (1) formation are wholely set on valve chamber cover (4), and described PCV valve (1) is arranged on the top of deaerator (7).
2. a kind of new type crank box ventilation system according to claim 1 is characterized in that: described deaerator (7) is made of three cyclone type oil-gas separators.
3. a kind of new type crank box ventilation system according to claim 1 is characterized in that: described deaerator (7) bottom is provided with oil back chamber (8).
4. a kind of new type crank box ventilation system according to claim 1 is characterized in that: the PVC valve (1) of stating be connected with bent axle ventilation duct (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201724700U CN201474750U (en) | 2009-06-08 | 2009-06-08 | Novel crankcase ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201724700U CN201474750U (en) | 2009-06-08 | 2009-06-08 | Novel crankcase ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201474750U true CN201474750U (en) | 2010-05-19 |
Family
ID=42410998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201724700U Expired - Fee Related CN201474750U (en) | 2009-06-08 | 2009-06-08 | Novel crankcase ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201474750U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146824A (en) * | 2011-04-29 | 2011-08-10 | 淮阴工学院 | Crankcase ventilation system for engine |
| CN102410061A (en) * | 2010-09-20 | 2012-04-11 | 广西玉柴机器股份有限公司 | Engine respirator assembly |
| CN102865124A (en) * | 2012-09-14 | 2013-01-09 | 长城汽车股份有限公司 | Whirlwind type oil-gas separator having self-sealing oil return structure |
| CN104487665A (en) * | 2012-07-04 | 2015-04-01 | 爱信精机株式会社 | Oil separator |
| CN104819032A (en) * | 2015-05-21 | 2015-08-05 | 宁波库贴汽车塑料有限公司 | Oil-gas separator |
-
2009
- 2009-06-08 CN CN2009201724700U patent/CN201474750U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102410061A (en) * | 2010-09-20 | 2012-04-11 | 广西玉柴机器股份有限公司 | Engine respirator assembly |
| CN102146824A (en) * | 2011-04-29 | 2011-08-10 | 淮阴工学院 | Crankcase ventilation system for engine |
| CN104487665A (en) * | 2012-07-04 | 2015-04-01 | 爱信精机株式会社 | Oil separator |
| CN102865124A (en) * | 2012-09-14 | 2013-01-09 | 长城汽车股份有限公司 | Whirlwind type oil-gas separator having self-sealing oil return structure |
| CN102865124B (en) * | 2012-09-14 | 2014-12-24 | 长城汽车股份有限公司 | Whirlwind type oil-gas separator having self-sealing oil return structure |
| CN104819032A (en) * | 2015-05-21 | 2015-08-05 | 宁波库贴汽车塑料有限公司 | Oil-gas separator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100519 Termination date: 20140608 |