CN105065132B - A kind of improved structure for the motor cylinder protective shield for being integrated with gas oil separation structure - Google Patents
A kind of improved structure for the motor cylinder protective shield for being integrated with gas oil separation structure Download PDFInfo
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- CN105065132B CN105065132B CN201510493470.0A CN201510493470A CN105065132B CN 105065132 B CN105065132 B CN 105065132B CN 201510493470 A CN201510493470 A CN 201510493470A CN 105065132 B CN105065132 B CN 105065132B
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Abstract
The present invention relates to a kind of motor cylinder protective shield improved structure for being integrated with gas oil separation structure, there is Oil-gas Separation room in the inner surface setting of the cylinder cap shield；The Oil-gas Separation room is included positioned at the first Oil-gas Separation room and the second Oil-gas Separation room positioned at exhaust side of air inlet side；The first Oil-gas Separation room is level Four isolating construction；The second Oil-gas Separation room is level Four isolating construction.The present invention is by using level Four isolating construction, and by increasing the structure of cyclonic separation plate group, so that air-fuel mixture gas is when flowing through cyclonic separation plate group, by the setting of curve ruler, air-flow is caused to produce whirlpool, because the gentle density of oil is different, oil is gentle to produce separation in the presence of whirlpool, larger oil droplet after separation directly drops on oil baffle, and small oil droplet then impinges upon cyclone type separation plate surface and flows to orifice plate along its surface, improves the effect of Oil-gas Separation.
Description
Technical field
The invention belongs to technical field of engines, a kind of engine cylinder cover shield for being integrated with gas oil separation structure is particularly related to
The improved structure of cover.
Background technology
In engine operation process, gap and piston and work of a small amount of gas between cylinder wall and piston ring are had
Gap between plug ring is scurried into crankcase, and these gas blowbies can take away the machine oil of piston and cylinder wall surface, pass through air inlet system
System burns again into combustion chamber.But it is due to that machine oil can not burn completely, discharge can be had a negative impact.Therefore it is satisfaction
Emission regulation demands, it is necessary to separate machine oil in gas blowby.
Existing petrol engine is to meet the respiratory system that the requirement of Abgasgesetz uses enclosed, and the engine of early stage leads to
Wind system uses the structure of external oil-gas separator, causes pipeline complicated, arranges too fat to move, runs counter to the integrated lightweight of engine
Development trend.
The cylinder cap cover assembly of existing integrated gas oil separation structure is typically using one to three-level separation, the effect of Oil-gas Separation
The need for fruit substantially meets Abgasgesetz, but as Abgasgesetz is increasingly strict, it is badly in need of oil gas separation more preferable oil gas point
Emission request is met from device structure.
As shown in Figures 1 to 5, in order to realize that machine oil is separated with gas blowby, current Oil-gas Separation technical scheme uses enclosed three
Level isolating construction, be specially：Gs-oil separator is divided into air inlet side separation chamber A and exhaust side separation chamber B, and respectively there is three-level two separation chambers
Isolating construction.
Air inlet side separation chamber includes cylinder cap shield 010, oil baffle 020, the first dividing plate group 011, first baffle 021,
One orifice plate 023, the first tooth form crash panel 012, Pcv valve 013, air inlet side gas outlet I, the first oil return portion 022, air inlet side-inlet
IN1, the second oil return portion 024 and groove 029.
Exhaust side separation chamber includes cylinder cap shield 010, oil baffle 020, second partition group 014, second baffle 025,
Two orifice plates 027, the second tooth form crash panel 015, tubule 016, exhaust side-inlet IN2, exhaust side gas outlet II, the 3rd oil return portion
026th, the 4th oil return portion 028.
Prior art can not meet more maximum discharge limit value requirement, and directly resulting in vehicle can not list marketing.On overcoming
The problem of stating, prior art adds independent gs-oil separator to meet discharge standard by using motor cylinder protective shield, so not
Only result in pipeline complicated, arrange too fat to move, and increased cost is excessive.
On the other hand, the Oil-gas Separation room technology of existing technology, when engine is in high speed and high load capacity working condition, because
Increase for the gas blowby of crankcase, and because inlet manifold and the pressure difference relation at the gas outlet of air inlet side Oil-gas Separation room, have portion
Divide gas blowby to need to complete Oil-gas Separation by exhaust side Oil-gas Separation room, improve the burden of exhaust side Oil-gas Separation room, lead
Cause engine can not be up to standard in the discharge standard at high speed and in the case of high load capacity.
The content of the invention
The purpose of the present invention is to propose improved technology scheme to existing motor cylinder protective shield, by the technical program, is being had
In the case of limit increase cost, realize that engine exhaust meets the emission limit requirement of existing regulation.
The present invention is achieved by the following technical solutions：
A kind of improved structure for the motor cylinder protective shield for being integrated with gas oil separation structure, sets in the inner surface of cylinder cap shield
It is equipped with Oil-gas Separation room；
The Oil-gas Separation room is included positioned at the first Oil-gas Separation room of air inlet side and positioned at the second oil gas point of exhaust side
From room；
The first Oil-gas Separation room is level Four isolating construction；The second Oil-gas Separation room is level Four isolating construction；
The first Oil-gas Separation room includes the first dividing plate group, first baffle, the first oil baffle, the first cyclonic separation plate
Group, the first orifice plate and the first tooth form crash panel；
The second Oil-gas Separation room includes second partition group, second baffle, the second oil baffle, the second cyclonic separation
Plate group, the second orifice plate and the second tooth form crash panel；
One side of the first dividing plate group, a side of the first cyclonic separation plate group, first tooth form
One side of crash panel, a side of the second partition group, a side of the second cyclonic separation plate group and institute
Inner surface of the side of the second tooth form crash panel with the cylinder cap shield is stated to be connected；
The first baffle and first orifice plate with table relative with the cylinder cap shield in first oil baffle
Face is connected；
The second baffle and second orifice plate with table relative with the cylinder cap shield in second oil baffle
Face is connected；
If first orifice plate is provided with dry gas via with second orifice plate close to the side of the cylinder cap shield；Often
The inwall of the individual gas via be provided with it is multiple axially through trench structure；The center line of each trench structure with
The center line of remaining trench structure is parallel；The center line of each trench structure is curve.
The center line of each trench structure is a same part for helix.
The structure of the first cyclonic separation plate group and the second cyclonic separation plate group is identical, includes at least three
The curve ruler be arrangeding in parallel.
First oil baffle connects as one structure with second oil baffle by connecting plate.
The first oil return portion and the second oil return portion are provided with first oil baffle；Set on second oil baffle
There are the 3rd oil return portion and the 4th oil return portion.
The first oil return portion is located at the same side of first oil baffle with the second oil return portion；3rd oil return
Portion is located at the same side of second oil baffle with the 4th oil return portion.
The height in the first oil return portion is different from the height in the second oil return portion；The height in the 3rd oil return portion with
The height in the 4th oil return portion is different.
First oil baffle and second oil baffle are provided with the flange to the cylinder cap shield direction.
Set fluted on the flange.
The first venthole is provided with the cylinder cap shield corresponding to the first Oil-gas Separation room；First venthole
Pcv valve is installed；The Pcv valve passes through pipeline and inlet manifold UNICOM；In the cylinder cap corresponding to the second Oil-gas Separation room
The second venthole is provided with shield；Second venthole passes through pipeline and air cleaner outlet side pipeline UNICOM.
The beneficial effects of the invention are as follows：
The application is carried by being disposed as level Four isolating construction in the Oil-gas Separation room of cylinder cap shield air inlet side and exhaust side
The high effect of Oil-gas Separation；
By using level Four isolating construction, and by increasing the structure of cyclonic separation plate group so that air-fuel mixture gas exists
When flowing through cyclonic separation plate group, by the setting of curve ruler, air-flow is caused to produce whirlpool, because the gentle density of oil is different, oil
Gentle that separation is produced in the presence of whirlpool, the larger oil droplet after separation directly drops on oil baffle, and small oil droplet then impinges upon rotation
Wind formula separation plate surface simultaneously flows to orifice plate along its surface, improves the effect of Oil-gas Separation；
Set in exhaust side Oil-gas Separation room using level Four isolating construction, when engine is in high speed and high-load operation
When, part crankcase gas blowby can carry out level Four separation by exhaust side Oil-gas Separation room, improve engine at high speed and high
Emission request is still met during load.
Brief description of the drawings
Fig. 1 is that existing technology cylinder cap shield removes structural representation after oil baffle；
Fig. 2 is the internal structure schematic diagram of existing technology cylinder cap almuce belt oil baffle；
Fig. 3 is the structural representation of existing technology oil baffle；
Fig. 4 is the structural representation of another angle of existing technology oil baffle；
Fig. 5 is Fig. 4 E-E sectional views；
Fig. 6 is that cylinder cap shield of the present invention removes the structural representation after oil baffle；
Fig. 7 is that cylinder cap shield of the present invention removes the front view after oil baffle；
Fig. 8 is Fig. 7 F-F sectional views；
Fig. 9 is oil baffle plate structure schematic diagram of the present invention.
Description of reference numerals
A air inlet sides separation chamber, B exhaust sides separation chamber, 010 cylinder cap shield, 011 first dividing plate group, 012 first tooth form is hit
Hit plate, 013PCV valves, 014 second partition group, 015 second tooth form crash panel, 016 tubule, 020 oil baffle, 021 first baffle,
022 first oil return portion, 023 first orifice plate, 024 second oil return portion, 025 second baffle, 026 the 3rd oil return portion, 027 second hole
Plate, 028 the 4th oil return portion, 029 groove, 100 cylinder cap shields, 200 first Oil-gas Separation rooms, 300 second Oil-gas Separation rooms, 400
First oil baffle, 500 second oil baffles, 600 connecting plates, 700 flange, 800 grooves, 900 gas vias, 101 convex tendons, 201
One dividing plate group, 202 first baffles, 203 first cyclonic separation plate groups, 204 first orifice plates, 205 first tooth form crash panels, 206
Pcv valve, 207 first ventholes, 208 first oil return portions, 209 second oil return portions, 301 second partition groups, 302 second baffles, 303
Second orifice plate, 304 second tooth form crash panels, 305 second ventholes, 306 the 3rd oil return portions, 307 the 4th oil return portions, 308 second
Cyclonic separation plate group.
Embodiment
Describe technical scheme in detail by the following examples, following embodiment be only it is exemplary, only
Explanation and illustration technical scheme can be used for, and be not to be construed as the limitation to technical solution of the present invention.
The present invention provides a kind of improved structure for the motor cylinder protective shield for being integrated with gas oil separation structure, such as Fig. 6 to figure
Shown in 9, there is Oil-gas Separation room in the inner surface setting of cylinder cap shield 100；The cylinder cap shield of the application refers to be integrated with oil gas point
From the cylinder cap shield of device, without the cylinder cap shield including not being integrated with gs-oil separator.In the technical scheme of the application, only
It is relevant with the oil-gas separator structure on cylinder cap shield, and the other structures set on cylinder cap shield are prior art, and
Not in the protection domain of the application.
The Oil-gas Separation room is included positioned at the first Oil-gas Separation room 200 of air inlet side and the second oil gas positioned at exhaust side
Separation chamber 300；
The first Oil-gas Separation room 200 is level Four isolating construction；The second Oil-gas Separation room 300 is that level Four separates knot
Structure.
The first Oil-gas Separation room 200 includes the first dividing plate group 201, first baffle 202, the first oil baffle 400,
One cyclonic separation plate group 203, the first orifice plate 204 and the first tooth form crash panel 205；Close to cylinder cap shroud on first orifice plate 204
Two rows several gas vias 900 are distributed with.First dividing plate group, the first cyclone type separating plate group, the first tooth form crash panel and
One oil baffle faces the uniform surface fixed gap of cylinder cap shield；The number and diameter of gas via, the first dividing plate group, the first whirlwind
The gap in the gap of separating plate group and the first tooth form crash panel and the first oil baffle, first baffle and cylinder cap shield top plate is according to oil
Gas mixed gas flow is rationally set.
The second Oil-gas Separation room 300 include second partition group 301, second baffle 302, the second oil baffle 500,
Second cyclonic separation plate group 308, the second orifice plate 303 and the second tooth form crash panel 304；Close to cylinder cap shield on second orifice plate 303
Two rows several gas vias 900 are distributed with side.Second partition group, the second cyclonic separation plate group, the second tooth form crash panel and
Two oil baffles face the uniform surface fixed gap of cylinder cap shield；The number and diameter of gas via, second partition group, the second whirlwind
The gap in the gap of separating plate group and the second tooth form crash panel and the second oil baffle, second baffle and cylinder cap shield top plate is according to oil
Gas mixed gas flow is rationally set.
One side of the first dividing plate group, a side of the first cyclonic separation plate group, first tooth form
One side of crash panel, a side of the second partition group, a side of the second cyclonic separation plate group and institute
Inner surface of the side of the second tooth form crash panel with the cylinder cap shield is stated to be connected.
The first baffle and first orifice plate with table relative with the cylinder cap shield in first oil baffle
Face is connected.
The second baffle and second orifice plate with table relative with the cylinder cap shield in second oil baffle
Face is connected.
If first orifice plate 204 is provided with dry gas with second orifice plate 303 close to the side of the cylinder cap shield
Via 900；The inwall of each gas via 900 be provided with it is multiple axially through trench structure；Each groove profile
The center line of structure is parallel with the center line of trench structure remaining described；The shape of the center line of each trench structure is meant herein
All same；The center line of each trench structure is curve；The center line of each trench structure is the same portion of helix
Point, i.e., the center line of each trench structure is spiral line type curve.In present embodiments, the horizontal stroke of each trench structure
Section is square or semicircle, and the depth of trench structure is the 1/10-1/3 of gas via diameter.
The first cyclonic separation plate group 203 is identical with the structure of the second cyclonic separation plate group 308, includes at least three
The individual curve ruler be arrangeding in parallel；Air inlet side and exhaust side increase in the application in cylinder cap shield sets cyclonic separation plate group to be this
The key technology scheme of application, particularly sets cyclonic separation plate group in exhaust side, ensure that engine at high speed and high
Discharge under load reaches defined standard.In this application, curve ruler refers on the fore-and-aft direction of cylinder cap shield, curve ruler
Center line be curve, and in the present embodiment, every piece of curve ruler is each perpendicular to the inner surface of cylinder cap shield；In order to improve whirlwind
The separating effect of separating plate group, when the tangent line parallel to cylinder cap shield axial centerline is done to every piece of curve ruler, every piece of curve ruler is equal
The tangent line for having part cuts adjacent curve ruler.
First oil baffle 400 connects as one structure with second oil baffle 500 by connecting plate 600.Connection
The length of plate is not only smaller than length of the length again smaller than the second oil baffle of first gear oiled-plate method；In the present embodiment, connecting plate 600
Two ends be arc.
The first oil return portion 208 and the second oil return portion 209 are provided with first oil baffle 400；In the second gear
The 3rd oil return portion 306 and the 4th oil return portion 307 are provided with oiled-plate method 500.To prevent oil gas from directly being altered without separation from oil return portion
Enter separation chamber, the height in the first oil return portion is different and different according to position from the height in the second oil return portion；The height in the 3rd oil return portion
Spend different and different according to position from the height in the 4th oil return portion.
The first oil return portion is located at the same side of first oil baffle with the second oil return portion；3rd oil return
Portion is located at the same side of second oil baffle with the 4th oil return portion.In the present embodiment, the first oil return portion with second time
Oily portion is located at close to the side of connecting plate；3rd oil return portion is located remotely from the side of connecting plate with the 4th oil return portion.
First oil baffle 400 and second oil baffle 500 are provided with the flange to the cylinder cap shield direction
700.Fluted 800 are set on the flange 700.The company of welding between certain altitude convex tendon 101 on groove 800 and cylinder cap shield
Connect, so as to form air inlet side the first Oil-gas Separation room or the second Oil-gas Separation room of exhaust side.
The first venthole 207 is provided with the cylinder cap shield corresponding to the first Oil-gas Separation room 200；Described first
Venthole 207 is provided with PCV (positive crankcase ventilation positive crankcase ventilation (PCV)s) valve 206；The PCV
Valve 206 passes through pipeline and inlet manifold UNICOM；Is provided with the cylinder cap shield corresponding to the second Oil-gas Separation room 300
Two ventholes 305；Second venthole 305 passes through pipeline and air cleaner outlet side pipeline UNICOM；Second venthole is same
When have concurrently by fresh air import bent axle box function.
In this application, from the air inlet side air admission hole of crankcase oil gas to the first venthole side in the first Oil-gas Separation room
To being disposed with the first dividing plate group, first baffle, the first cyclonic separation plate group, the first oil return portion, the first orifice plate, the first tooth
Shape crash panel and the second oil return portion；The fuel-air mixture entered from air inlet side air admission hole hits the first dividing plate group first, preliminary point
Larger oil droplet is separated out, first order Oil-gas Separation is realized；Then air-fuel mixture air-flow hits during advance with first baffle
Realize second level Oil-gas Separation；Fuel-air mixture by two grades of Oil-gas Separations flows to the first cyclonic separation plate with certain speed
Group, because curve ruler is designed in the first cyclonic separation plate group, causes air-flow to produce whirlpool when passing through, due to the gentle density of oil not
Together, oil is gentle produces separation in the presence of whirlpool, and the larger oil droplet after separation directly drops on the first oil baffle, and small oil droplet is then
Impinge upon curve plate surface and flow to the first orifice plate along its surface, complete third level Oil-gas Separation；By third level Oil-gas Separation
Fuel-air mixture afterwards flows to the first tooth form crash panel after the first orifice plate and the first orifice plate, the first orifice plate and with certain speed
One tooth form crash panel realizes fourth stage Oil-gas Separation.
The aspect of the centrifugation of first orifice plate point three：One is that fuel-air mixture is directly isolated with the collision of orifice plate non-wall surface of the hole
Oil gas, two be that oil gas closes on before orifice plate inflow gas via whirlpool is produced by rotary shaft of axially bored line, and light gas is thrown out of reality
Existing Oil-gas Separation, three be that the fuel-air mixture of inflow gas via is converged through aperture and accelerated, and is entered oil gas by trench structure
Entering the whirlpool degree before gas via further increases, and improves radial rotary power and angular speed, small oil droplet is pooled larger
Oil droplet simultaneously isolates machine oil with the fiercer collision of tooth form crash panel generation.
Machine oil content so after the separation of above-mentioned level Four in fuel-air mixture is substantially reduced, and the gas after separation flows through
Pcv valve enters inlet manifold and then enters combustion chambers burn.
Exhaust side air admission hole in second Oil-gas Separation room from crankcase oil gas is disposed with to the second venthole direction
Second partition group, second baffle, the second cyclonic separation plate group, the 3rd oil return portion, the second orifice plate, the second tooth form crash panel and the 4th
Oil return portion；The fuel-air mixture entered from exhaust side air admission hole hits second partition group first, and initial gross separation goes out larger oil droplet,
Realize second level Oil-gas Separation；Then air-fuel mixture air-flow hits during advance with second baffle realizes second level oil gas point
From；Fuel-air mixture by two grades of Oil-gas Separations flows to the second cyclonic separation plate group with certain speed, due to the second whirlwind
Curve ruler is designed in separating plate group, causes air-flow to produce whirlpool when passing through, and because the gentle density of oil is different, oil is gentle in whirlpool
In the presence of produce separation, the larger oil droplet after separation directly drops on the second oil baffle, and small oil droplet then impinges upon curve ruler table
Face simultaneously flows to the second orifice plate along its surface, completes third level Oil-gas Separation；Fuel-air mixture after third level Oil-gas Separation
The second tooth form crash panel after second orifice plate and the second orifice plate is flowed to certain speed, the second orifice plate and the second tooth form crash panel are real
Existing fourth stage Oil-gas Separation.
The aspect of the centrifugation of second orifice plate point three：One is that fuel-air mixture is directly isolated with the collision of orifice plate non-wall surface of the hole
Oil gas, two be that oil gas closes on before orifice plate inflow gas via whirlpool is produced by rotary shaft of axially bored line, and light gas is thrown out of reality
Existing Oil-gas Separation, three be that the gaseous mixture of inflow gas via is converged through aperture and accelerated, and oil gas is entered into gas by trench structure
Whirlpool degree before body via further increases, and improves radial rotary power and angular speed, and small oil droplet is pooled compared with larger oil droplet
And isolate machine oil with the fiercer collision of castellated plates generation.
Oil-gas Separation principle is as follows：
Because crankcase is different from inlet manifold or air filter air outlet pipe pressure differential, bent axle under Different Work Condition of Engine
Case ventilating path is different.
During low engine speed Smaller load, when generally referring to engine speed herein less than 2000 turns, crankcase gas blowby passes through
The first Oil-gas Separation of air inlet side room is separated, and gas blowby is flowed into from air inlet side air admission hole first, meanwhile, it is small negative in low engine speed
During lotus, due to pressure difference, fresh air after air filter can by the second gas outlet of the first Oil-gas Separation of exhaust side room against
Oil gas flowing side flows into the second Oil-gas Separation room and crankcase, and fuel-air mixture in crankcase further is swept into air inlet side first
Oil-gas Separation room carries out Oil-gas Separation, prevents oil sump machine oil from going bad.
In big load at a high speed, when generally referring to engine speed herein more than 2000 turns, air- distributor pressure is higher,
Due to Pcv valve one-way conduction, the first Oil-gas Separation of air inlet side room simulation model for mixing gases flows is hindered, now, has part bent axle
Case gas blowby is separated by the second Oil-gas Separation of exhaust side room, and gas blowby is flowed into from exhaust side air admission hole first, by above-mentioned four
The machine oil content in fuel-air mixture is greatly lowered after level separation, the gas after separation flows into air filter by the second gas outlet
The escape pipe of clear device, then inlet manifold and combustion chambers burn are flowed into successively.
By Oil-gas Separation, the machine oil being separated flows to oil baffle oil return portion, and thus place returns to oil sump.So, nothing
Effective Oil-gas Separation can be obtained by operating in fuel-air mixture in which kind of operating mode, crankcase by engine, and keep crankcase
Available ventilation can be obtained, exhaust emission is significantly reduced while avoiding oil sump machine oil from going bad.
Although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of changes, modification can be carried out to these embodiments, replace without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is by appended claims and its equivalent limits.
Claims (10)
1. a kind of improved structure for the motor cylinder protective shield for being integrated with gas oil separation structure, it is characterised in that：In cylinder cap shield
Inner surface setting have Oil-gas Separation room；
The Oil-gas Separation room is included positioned at the first Oil-gas Separation room and the second Oil-gas Separation room positioned at exhaust side of air inlet side；
The first Oil-gas Separation room is level Four isolating construction；The second Oil-gas Separation room is level Four isolating construction；
The first Oil-gas Separation room include the first dividing plate group, first baffle, the first oil baffle, the first cyclonic separation plate group,
First orifice plate and the first tooth form crash panel；
The second Oil-gas Separation room include second partition group, second baffle, the second oil baffle, the second cyclonic separation plate group,
Second orifice plate and the second tooth form crash panel；
One side of the first dividing plate group, a side of the first cyclonic separation plate group, first tooth form are hit
One side of plate, a side of the second partition group, a side of the second cyclonic separation plate group and described
Inner surface of one side of two tooth form crash panels with the cylinder cap shield is connected；
The first baffle and first the orifice plate surface relative with the cylinder cap shield with first oil baffle connect
Connect；
The second baffle and second the orifice plate surface relative with the cylinder cap shield with second oil baffle connect
Connect；
If first orifice plate is provided with dry gas via with second orifice plate close to the side of the cylinder cap shield；Each institute
State gas via inwall be provided with it is multiple axially through trench structure；The center line of each trench structure and remaining
The center line of the trench structure is parallel；The center line of each trench structure is curve.
2. the improved structure of the motor cylinder protective shield according to claim 1 for being integrated with gas oil separation structure, its feature
It is：The center line of each trench structure is a same part for helix.
3. the improved structure of the motor cylinder protective shield according to claim 1 for being integrated with gas oil separation structure, its feature
It is：The structure of the first cyclonic separation plate group and the second cyclonic separation plate group is identical, includes at least three flat
The curve ruler that row is set.
4. the improved structure of the motor cylinder protective shield according to claim 1 for being integrated with gas oil separation structure, its feature
It is：First oil baffle connects as one structure with second oil baffle by connecting plate.
5. the improved structure of the motor cylinder protective shield for being integrated with gas oil separation structure according to claim 1 or 4, it is special
Levy and be：The first oil return portion and the second oil return portion are provided with first oil baffle；Set on second oil baffle
There are the 3rd oil return portion and the 4th oil return portion.
6. the improved structure of the motor cylinder protective shield according to claim 5 for being integrated with gas oil separation structure, its feature
It is：The first oil return portion is located at the same side of first oil baffle with the second oil return portion；The 3rd oil return portion
It is located at the same side of second oil baffle with the 4th oil return portion.
7. the improved structure of the motor cylinder protective shield according to claim 5 for being integrated with gas oil separation structure, its feature
It is：The height in the first oil return portion is different from the height in the second oil return portion；The height in the 3rd oil return portion and institute
The height for stating the 4th oil return portion is different.
8. the improved structure of the motor cylinder protective shield according to claim 1 for being integrated with gas oil separation structure, its feature
It is：First oil baffle and second oil baffle are provided with the flange to the cylinder cap shield direction.
9. the improved structure of the motor cylinder protective shield according to claim 8 for being integrated with gas oil separation structure, its feature
It is：Set fluted on the flange.
10. the improved structure of the motor cylinder protective shield according to claim 1 for being integrated with gas oil separation structure, its feature
It is：The first venthole is provided with the cylinder cap shield corresponding to the first Oil-gas Separation room；The first venthole peace
Equipped with Pcv valve；The Pcv valve passes through pipeline and inlet manifold UNICOM；In the cylinder cap shield corresponding to the second Oil-gas Separation room
The second venthole is provided with cover；Second venthole passes through pipeline and air cleaner outlet side pipeline UNICOM.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493470.0A CN105065132B (en) | 2015-08-12 | 2015-08-12 | A kind of improved structure for the motor cylinder protective shield for being integrated with gas oil separation structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493470.0A CN105065132B (en) | 2015-08-12 | 2015-08-12 | A kind of improved structure for the motor cylinder protective shield for being integrated with gas oil separation structure |
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| Publication Number | Publication Date |
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| CN105065132A CN105065132A (en) | 2015-11-18 |
| CN105065132B true CN105065132B (en) | 2017-11-03 |
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| CN112282893B (en) * | 2020-10-23 | 2022-04-08 | 奇瑞汽车股份有限公司 | Crankcase ventilation mechanism and engine |
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| CN203441567U (en) * | 2013-08-29 | 2014-02-19 | 安徽江淮汽车股份有限公司 | Oil-gas separator and engine cylinder cover sheath |
| CN204060857U (en) * | 2014-08-04 | 2014-12-31 | 安徽江淮汽车股份有限公司 | Motor cylinder protective shield and crankcase ventilation system |
| CN204126756U (en) * | 2014-09-29 | 2015-01-28 | 安徽江淮汽车股份有限公司 | Motor cylinder protective shield and engine assembly |
-
2015
- 2015-08-12 CN CN201510493470.0A patent/CN105065132B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013072314A (en) * | 2011-09-27 | 2013-04-22 | Daihatsu Motor Co Ltd | Oil separator |
| CN102536385A (en) * | 2012-02-29 | 2012-07-04 | 长城汽车股份有限公司 | Oil-gas separating device and air cylinder cover assembly |
| CN103422942A (en) * | 2013-08-29 | 2013-12-04 | 安徽江淮汽车股份有限公司 | Oil-gas separator and motor cylinder protective shield |
| CN203441567U (en) * | 2013-08-29 | 2014-02-19 | 安徽江淮汽车股份有限公司 | Oil-gas separator and engine cylinder cover sheath |
| CN204060857U (en) * | 2014-08-04 | 2014-12-31 | 安徽江淮汽车股份有限公司 | Motor cylinder protective shield and crankcase ventilation system |
| CN204126756U (en) * | 2014-09-29 | 2015-01-28 | 安徽江淮汽车股份有限公司 | Motor cylinder protective shield and engine assembly |
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| CN105065132A (en) | 2015-11-18 |
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