CN201953442U - Oil-gas separation structure of engine cylinder cover - Google Patents
Oil-gas separation structure of engine cylinder cover Download PDFInfo
- Publication number
- CN201953442U CN201953442U CN2011200306216U CN201120030621U CN201953442U CN 201953442 U CN201953442 U CN 201953442U CN 2011200306216 U CN2011200306216 U CN 2011200306216U CN 201120030621 U CN201120030621 U CN 201120030621U CN 201953442 U CN201953442 U CN 201953442U
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- oil
- gas
- cylinder cover
- separation structure
- labyrinth baffle
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Abstract
An oil-gas separation structure of an engine cylinder cover belongs to the technical field of engines and is used for solving the problems in the conventional oil-gas separation structure of the engine cylinder cover that the structure is complicated and the processing period is longer. The utility model adopts the technical scheme that the oil-gas separation structure of the engine cylinder cover comprises a cylinder cover body and a partition plate; after improvement, two labyrinth baffle groups are arranged on the cylinder cover body and are arranged close to one side of a gas inlet of the cylinder cover body; two oil-gas separating plates are arranged on the partition plate in parallel; and the oil-gas separating plates and the labyrinth baffle groups are positioned on the same side and form a two-stage oil-gas separating structure. The oil-gas separation structure realizes two-stage oil-gas separation through labyrinth baffles and the oil-gas separating plates, separated oil liquid flows into an oil collecting groove along the slope of the partition plate and leaks in a cylinder body through oil leak holes, and separated gas enters into a suction manifold through a PCV (pollution-control valve). The oil-gas separation structure dispenses with a complicated oil-gas separating system, has the advantages of compact structure and reasonability in arrangement, is easy to implement in process and can achieve better separating effect through two-stage oil-gas separation.
Description
Technical field
The utility model relates to a kind of cylinder cover of engine gas oil separation structure, belongs to technical field of engines.
Background technique
Along with rapid development of automobile industry, automobile exhaust pollution also threatens human ecological environment day by day seriously.How effectively to administer automobile emission and become a important subject in world today's environmental protection.At present, be that the emission controls by improving combustion technology of core becomes and reduces one of important technology that motor vehicle exhaust emission pollutes to improve engine combustion process.When engine operation, have " bypass gases " in the cylinder and scurry in the crankcase by cylinder through piston ring, bring the oil film and the oil droplet that are trapped in piston and cylinder sleeve surface into air-flow, by gas handling system, enter the firing chamber and burn once more.But because machine oil can not perfect combustion, the waste gas of generation can have a negative impact to environment and exhaust index, therefore, in order to reduce toxic emission, machine oil must be separated from crank case gases.Prior art is used hydromechanical basic theories, and oil and gas separating system is set in cylinder cover of engine, and for example inertial impaction formula separator separates oil gas, reduces exhaust emission pollution, reduces consumption of lubricating oil.The problem that exists is: the oil and gas separating system complex structure, and volume is bigger, the mould of employing and processing technology complexity, formed product cycle and process-cycle are longer.
The model utility content
The utility model is used to overcome the deficiencies in the prior art, provides that a kind of rational in infrastructure, preparation process is relatively easy, the cylinder cover of engine gas oil separation structure of good oil gas separation effect.
The alleged problem of the utility model realizes with following technical proposals:
A kind of cylinder cover of engine gas oil separation structure, its specialization is: it is made of cylinder head cover body and dividing plate, cylinder head cover body and dividing plate seam, described cylinder head cover body is provided with two labyrinth baffle group, wherein labyrinth baffle group 2 is near cylinder head cover body suction port one side, parallelly on the described dividing plate be provided with two oil-gas separating plate, oil-gas separating plate and labyrinth baffle group 2 are positioned at homonymy, constitute the secondary gas oil separation structure by labyrinth baffle group and oil-gas separating plate.
Above-mentioned cylinder cover of engine gas oil separation structure, described two labyrinth baffle group are made up of four labyrinth baffle plates respectively, each is organized four labyrinth baffle plates and is " people " font and lines up two rows, each labyrinth baffle plate is 61-63 ° with the angle α of vertical symmetry plane, the labyrinth baffle spacing B that two of every rows are parallel to each other is 8-9mm, and the slit b distance between two staggered labyrinth baffle plates is 1.5-2mm.
Above-mentioned cylinder cover of engine gas oil separation structure is provided with oil trap between described two oil-gas separating plate, and oil-gas separating plate is provided with aperture, and aperture is staggered, and the oil-gas separating plate side is provided with the Oil Guide gap, and the Oil Guide gap of two oil-gas separating plate is not in the same side.
Above-mentioned cylinder cover of engine gas oil separation structure, the diameter of the aperture on the described oil-gas separating plate is 2.5-3mm, hole pitch is spaced apart 5-6mm; Described Oil Guide gap distance is 8-12mm.
The utility model improves at long problem of the oil and gas separating system complex structure in the available engine cylinder head cover, process-cycle, employing is provided with the labyrinth baffle plate on the cylinder head cover body, the oil-gas separating plate that joint is arranged on the dividing plate place realizes the secondary Oil-gas Separation, separated liquid oil flows in the oil trap along the dividing plate gradient, by the cylinder body that bleeds from oil leaking hole, the gas after the separation enters into intake manifold by the PCV valve.The utility model need not to be provided with the complex hydrocarbon piece-rate system, and compact structure is provided with rationally, is easy on the technology realize, can reach separating effect preferably by the secondary Oil-gas Separation, reduces exhaust emission pollution, reduces consumption of lubricating oil.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the A-A sectional view of Fig. 1;
Fig. 3 Fig. 1 C portion partial enlarged view;
Fig. 4 is the diaphragm structure schematic representation;
Fig. 5 is the B-B sectional view of Fig. 4;
Fig. 6 is the left view of Fig. 4.
Each label is among the figure: 1. cylinder head cover body; 2,3. labyrinth baffle group; 2-1,3-1, labyrinth baffle plate; 4. dividing plate; 5. oil-gas separating plate; 5-1. aperture; 6. oil trap; 7. Oil Guide gap; 8. suction port; 9 vertical symmetry plane.
Embodiment
Referring to Fig. 1, Fig. 2, the utility model is made of cylinder head cover body 1 and dividing plate 4, cylinder head cover body and dividing plate seam.Be provided with labyrinth baffle group 2 and labyrinth baffle group 3 on the cylinder head cover body, wherein labyrinth baffle group 2 is near cylinder head cover body suction port 8 one sides.Parallelly on the described dividing plate be provided with two oil-gas separating plate 5, oil-gas separating plate and labyrinth baffle group 2 are positioned at homonymy, and the oil-containing gases that enters cylinder cover of engine constitutes the secondary gas oil separation structures through labyrinth baffle group 2 and oil-gas separating plate 5.
Referring to Fig. 1, Fig. 3, labyrinth baffle group 2 is made up of four labyrinth baffle plate 2-1, and labyrinth baffle group 3 and four labyrinth baffle plate 3-1 form, and the structure of labyrinth baffle group 2,3 is provided with identical.As seen from Figure 3, four labyrinth baffle plates are " people " font and line up two rows, each labyrinth baffle plate is 61-63 ° with the vertical angle α of symmetry plane 9, and the labyrinth baffle spacing B that two of every rows are parallel to each other is 8-9mm, and the slit b distance between two staggered labyrinth baffle plates is 1.5-2mm.
Referring to Fig. 4-6, the structure of two set oil-gas separating plate 5 is identical on the dividing plate 4, is provided with oil trap 6 between two oil-gas separating plate, and the oil trap bottom is provided with oil leaking hole.Oil-gas separating plate is provided with aperture 5-1, and the diameter of aperture is 2.5-3mm, and hole pitch is spaced apart 5-6mm.Three row totally 12 apertures are set on each oil-gas separating plate in the present embodiment, and aperture is staggered.Be provided with Oil Guide gap 7 at the oil-gas separating plate side, Oil Guide gap distance is 8-12mm, and the Oil Guide gap of two oil-gas separating plate is not arranged on the same side.
Referring to Fig. 2, the utility model Oil-gas Separation process is as follows: the mixed gas in the cylinder body enters cylinder head cover body 1 by suction port 8, when the baffle group 2 of the labyrinth of process cylinder head cover body 1, and repeatedly collision takes place in the slit between the baffle plate of labyrinth, the every bump of gas once, some fluid of capital is realized the one-level Oil-gas Separation by separating in the mixed gas; Through still containing a certain proportion of fluid in the gas after the one-level Oil-gas Separation, when its during by the oil-gas separating plate 5 on the dividing plate 4, collide with oil-gas separating plate, fluid flows down along oil-gas separating plate, gas quickens by aperture, and collision is in another oil-gas separating plate, and fluid flows down along oil-gas separating plate, gas passes through, and realizes the secondary Oil-gas Separation.Separated liquid oil flows in the long-pending oil groove 6, and by the cylinder body that bleeds from oil leaking hole, the gas after the separation enters intake manifold by the PCV valve.
Because the PCV valve is an one-way valve, connect intake manifold and cylinder head cover in the utility model, gas only enters into intake manifold by cylinder head cover, and oil-gas separating plate is arranged on cylinder head cover and PCV valve joint one side on the dividing plate, plays topmost Oil-gas Separation function.And be connected a side with air-strainer, because gas when high engine speeds turns round, enters into empty filter assembly air induction hose by cylinder head cover, labyrinth baffle group 1 plays oil gas separation; When time of engine low speed, gas enters into cylinder head cover by sky filter assembly air induction hose, do not need to realize the Oil-gas Separation function, consider drag effect, complex structure degree, manufacture cost that oil-gas separating plate produces gas, so oil-gas separating plate is not set in this side.
Claims (4)
1. cylinder cover of engine gas oil separation structure, it is characterized in that: it is made of cylinder head cover body (1) and dividing plate (4), cylinder head cover body and dividing plate seam, described cylinder head cover body is provided with two labyrinth baffle group (2,3), wherein labyrinth baffle group (2) is near cylinder head cover body suction port (8) one sides, parallel two oil-gas separating plate (5) that are provided with on the described dividing plate, oil-gas separating plate and labyrinth baffle group (2) are positioned at homonymy, constitute the secondary gas oil separation structure by labyrinth baffle group (2) and oil-gas separating plate (5).
2. according to the described cylinder cover of engine gas oil separation structure of claim 1, it is characterized in that: described two labyrinth baffle group (2,3) are made up of four labyrinth baffle plates respectively, each is organized four labyrinth baffle plates and is " people " font and lines up two rows, each labyrinth baffle plate is 61-63 ° with the angle α of vertical symmetry plane (9), the labyrinth baffle spacing B that two of every rows are parallel to each other is 8-9mm, and the slit b distance between two staggered labyrinth baffle plates is 1.5-2mm.
3. cylinder cover of engine gas oil separation structure according to claim 1 and 2, it is characterized in that: be provided with oil trap (6) between described two oil-gas separating plate (5), oil-gas separating plate is provided with aperture (5-1), aperture is staggered, the oil-gas separating plate side is provided with Oil Guide gap (7), and the Oil Guide gap of two oil-gas separating plate is not in the same side.
4. cylinder cover of engine gas oil separation structure according to claim 3 is characterized in that: the diameter of the aperture on the described oil-gas separating plate (5-1) is 2.5-3mm, and hole pitch is spaced apart 5-6mm; Described Oil Guide gap distance is 8-12mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200306216U CN201953442U (en) | 2011-01-28 | 2011-01-28 | Oil-gas separation structure of engine cylinder cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200306216U CN201953442U (en) | 2011-01-28 | 2011-01-28 | Oil-gas separation structure of engine cylinder cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953442U true CN201953442U (en) | 2011-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200306216U Expired - Lifetime CN201953442U (en) | 2011-01-28 | 2011-01-28 | Oil-gas separation structure of engine cylinder cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953442U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470341A (en) * | 2013-09-26 | 2013-12-25 | 长城汽车股份有限公司 | Cylinder head cover and automobile with same |
| CN103982320A (en) * | 2014-05-21 | 2014-08-13 | 柳州五菱柳机动力有限公司 | High-efficiency integrated oil-gas separating device |
| CN105003321A (en) * | 2015-08-12 | 2015-10-28 | 安徽江淮汽车股份有限公司 | Improved structure for integrated oil-gas separator |
| CN105003320A (en) * | 2015-08-12 | 2015-10-28 | 安徽江淮汽车股份有限公司 | Improved structure of engine oil-gas separator |
| CN103822076B (en) * | 2012-11-16 | 2016-06-22 | 哈尔滨飞机工业集团有限责任公司 | One subtracts foam Fuel Tanking Unit |
| CN110259544A (en) * | 2019-07-29 | 2019-09-20 | 广西玉柴机器股份有限公司 | A kind of high-efficiency oil-gas separating device being integrated in cylinder cover of engine |
-
2011
- 2011-01-28 CN CN2011200306216U patent/CN201953442U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103822076B (en) * | 2012-11-16 | 2016-06-22 | 哈尔滨飞机工业集团有限责任公司 | One subtracts foam Fuel Tanking Unit |
| CN103470341A (en) * | 2013-09-26 | 2013-12-25 | 长城汽车股份有限公司 | Cylinder head cover and automobile with same |
| CN103982320A (en) * | 2014-05-21 | 2014-08-13 | 柳州五菱柳机动力有限公司 | High-efficiency integrated oil-gas separating device |
| CN105003321A (en) * | 2015-08-12 | 2015-10-28 | 安徽江淮汽车股份有限公司 | Improved structure for integrated oil-gas separator |
| CN105003320A (en) * | 2015-08-12 | 2015-10-28 | 安徽江淮汽车股份有限公司 | Improved structure of engine oil-gas separator |
| CN105003321B (en) * | 2015-08-12 | 2017-07-18 | 安徽江淮汽车集团股份有限公司 | A kind of integration type oil-gas separator improved structure |
| CN105003320B (en) * | 2015-08-12 | 2017-08-25 | 安徽江淮汽车集团股份有限公司 | A kind of oil-gas separating device for engine improved structure |
| CN110259544A (en) * | 2019-07-29 | 2019-09-20 | 广西玉柴机器股份有限公司 | A kind of high-efficiency oil-gas separating device being integrated in cylinder cover of engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110831 |