CN105003349A - Engine cylinder head protection cover integrated with oil-gas separation structure - Google Patents
Engine cylinder head protection cover integrated with oil-gas separation structure Download PDFInfo
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- CN105003349A CN105003349A CN201510493910.2A CN201510493910A CN105003349A CN 105003349 A CN105003349 A CN 105003349A CN 201510493910 A CN201510493910 A CN 201510493910A CN 105003349 A CN105003349 A CN 105003349A
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- oil
- gas
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
- F02F7/00—Casings, e.g. crankcases or frames
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0422—Separating oil and gas with a centrifuge device
- F01M2013/0427—Separating oil and gas with a centrifuge device the centrifuge device having no rotating part, e.g. cyclone
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M13/00—Crankcase ventilating or breathing
- F01M13/04—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil
- F01M2013/0433—Crankcase ventilating or breathing having means for purifying air before leaving crankcase, e.g. removing oil with a deflection device, e.g. screen
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The invention relates to an engine cylinder head protection cover integrated with an oil-gas separation structure. Oil-gas separation chambers are arranged on the inner surface of the cylinder head protecting cover and comprise a first oil-gas separation chamber positioned on a gas inlet side and a second oil-gas separation chamber positioned on an exhaust side; the first oil-gas separation chamber adopts a four-stage separation structure; the second oil-gas separation chamber adopts the four-stage separation structure. According to the invention, by adopting the four-stage separation structure and the structure that cyclone separation plate groups are additionally arranged, when the oil-gas mixed gas passes through the cyclone separation plate groups, gas flow generates vortexes through the arrangement of curve plates, oil and gas are separated from each other under the effect of vortexes since oil and gas are different in density, large separated oil drops directly fall on oil baffles, and small oil drops collide the surfaces of the cyclone separation plates and flow towards pore plates along the surfaces of the cyclone separation plates, so that the oil-gas separation effect is improved.
Description
Technical field
The invention belongs to technical field of engines, refer to a kind of motor cylinder protective shield being integrated with gas oil separation structure especially.
Background technique
In engine operation process, having a small amount of gas scurries into crankcase from the gap between cylinder wall and piston ring and the gap between piston and rings, the machine oil of piston and cylinder wall surface can be taken away by these gas blowbies, enters firing chamber again burn by gas handling system.But because machine oil can not perfect combustion, can have a negative impact to discharge.Therefore for meeting emission regulation demands, machine oil must be separated from gas blowby.
Existing petrol engine is the respiratory system that the requirement meeting Abgasgesetz all adopts enclosed, and early stage engine breathing system adopts the structure of external oil-gas separator, causes pipeline complicated, arranges too fat to move, run counter to the integrated light-weighted development trend of motor.
The cylinder cap cover assembly of existing integrated gas oil separation structure generally adopts one to three grade of separation, the effect of Oil-gas Separation meets the needs of Abgasgesetz substantially, but along with Abgasgesetz increasingly stringent, be badly in need of the better oil-gas separator structure of oil gas separation and meet emission request.
As shown in Figures 1 to 5, be separated with gas blowby to realize machine oil, current Oil-gas Separation technological scheme adopts enclosed three grades of separation structures, is specially: deaerator is divided into air inlet side separation chamber A and exhaust side separation chamber B, and respectively there are three grades of separation structures two separation chambers.
Air inlet side separation chamber includes cylinder cap guard shield 010, oil baffle 020, first dividing plate group 011, first baffle plate 021, first orifice plate 023, first profile of tooth crash panel 012, Pcv valve 013, air inlet side air outlet I, the first oil return portion 022, air inlet side suction port IN1, the second oil return portion 024 and groove 029.
Exhaust side separation chamber includes cylinder cap guard shield 010, oil baffle 020, second partition group 014, second baffle 025, second orifice plate 027, second profile of tooth crash panel 015, tubule 016, exhaust side suction port IN2, exhaust side air outlet I I, the 3rd oil return portion 026, the 4th oil return portion 028.
Prior art can not meet more maximum discharge limit value requirement, directly causes car load cannot list marketing.In order to overcome above-mentioned problem, prior art meets emission standard by adopting motor cylinder protective shield to add independent deaerator, so not only cause pipeline complicated, arrange too fat to move, and the cost increased is too much.
On the other hand, the Oil-gas Separation room technology of existing technology, when motor high speed and high load working state time, because the gas blowby of crankcase increases, and because the pressure reduction relation at intake manifold and air outlet place, air inlet side Oil-gas Separation room, have part 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, cause motor in high speed and emission standard in high load situation can not be up to standard.
Summary of the invention
The object of the invention is to propose improvement opportunity scheme to existing motor cylinder protective shield, by the technical program, when limited increase cost, realize the emission limit requirement that engine exhaust meets existing regulation.
The present invention is achieved by the following technical solutions:
Be integrated with a motor cylinder protective shield for gas oil separation structure, the internal surface of cylinder cap guard shield is provided with Oil-gas Separation room;
Described Oil-gas Separation room comprises the first Oil-gas Separation room being positioned at air inlet side and the second Oil-gas Separation room being positioned at exhaust side;
Described first Oil-gas Separation room is level Four separation structure; Described second Oil-gas Separation room is level Four separation structure.
Described first Oil-gas Separation room includes the first dividing plate group, the first baffle plate, first gear oiled-plate method, the first cyclonic separation plate group, the first orifice plate and the first profile of tooth crash panel;
Described two Oil-gas Separation rooms include second partition group, second baffle, second gear oiled-plate method, the second cyclonic separation plate group, the second orifice plate and the second profile of tooth crash panel;
A side of a side of described first dividing plate group, a side of described first cyclonic separation plate group, a side of described first profile of tooth crash panel, described second partition group, a side of described second cyclonic separation plate group and a side of described second profile of tooth crash panel are all connected with the internal surface of described cylinder cap guard shield;
Described first baffle plate and described first orifice plate are all connected with surface relative with described cylinder cap guard shield in described first gear oiled-plate method;
Described second baffle and described second orifice plate are all connected with surface relative with described cylinder cap guard shield in described second gear oiled-plate method.
The structure of described first cyclonic separation plate group and described second cyclonic separation plate group is identical, includes at least three french curvess be arranged in parallel.
Described first gear oiled-plate method and described second gear oiled-plate method connect as one structure by connecting plate.
Described first gear oiled-plate method is provided with the first oil return portion and the second oil return portion; Described second gear oiled-plate method is provided with the 3rd oil return portion and the 4th oil return portion.
Described first oil return portion and described second oil return portion are positioned at the same side of described first gear oiled-plate method; Described 3rd oil return portion and described 4th oil return portion are positioned at the same side of described second gear oiled-plate method.
The height in described first oil return portion is different from the height in described second oil return portion; The height in described 3rd oil return portion is different from the height in described 4th oil return portion.
Described first gear oiled-plate method and described second gear oiled-plate method are provided with the flange to described cylinder cap guard shield direction.
Described flange is provided with groove.
Cylinder cap guard shield corresponding to described first Oil-gas Separation room is provided with the first air outlet hole; Described first air outlet hole is provided with Pcv valve; Described Pcv valve is by pipeline and intake manifold UNICOM; Cylinder cap guard shield corresponding to described second Oil-gas Separation room is provided with the second air outlet hole; Described second air outlet hole is by pipeline and air-strainer outlet side pipeline UNICOM.
The invention has the beneficial effects as follows:
The application, by being all set to level Four separation structure in the Oil-gas Separation room of cylinder cap guard shield air inlet side and exhaust side, improves the effect of Oil-gas Separation;
By adopting level Four separation structure, and by increasing the structure of cyclonic separation plate group, make air-fuel mixture gas when flowing through cyclonic separation plate group, by the setting of french curves, cause air-flow to produce whirlpool, the density gentle due to oil is different, the gentle generation under the effect of whirlpool of oil is separated, larger oil droplet after separation directly drops on oil baffle, and little oil droplet then impinges upon vortex type separating plate surface and flows to orifice plate along its surface, improves the effect of Oil-gas Separation;
Adopt level Four separation structure to arrange in exhaust side Oil-gas Separation room, when motor high speed and high-load operation time, part crankcase gas blowby can carry out level Four separation by exhaust side Oil-gas Separation room, improve motor high speed and high load time still meet emission request.
Accompanying drawing explanation
Fig. 1 is structural representation after existing technology cylinder cap guard shield removal 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 existing another angle of technology oil baffle;
Fig. 5 is the E-E sectional view of Fig. 4;
Fig. 6 is the structural representation after oil baffle removed by cylinder cap guard shield of the present invention;
Fig. 7 is the plan view after oil baffle removed by cylinder cap guard shield of the present invention;
Fig. 8 is the F-F sectional view of Fig. 7;
Fig. 9 is oil baffle plate structure schematic diagram of the present invention.
Description of reference numerals
A air inlet side separation chamber, B exhaust side separation chamber, 010 cylinder cap guard shield, 011 first dividing plate group, 012 first profile of tooth crash panel, 013PCV valve, 014 second partition group, 015 second profile of tooth crash panel, 016 tubule, 020 oil baffle, 021 first baffle plate, 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 orifice plate, 028 the 4th oil return portion, 029 groove, 100 cylinder cap guard shields, 200 first Oil-gas Separation rooms, 300 second Oil-gas Separation rooms, 400 first gear oiled-plate methods, 500 second gear oiled-plate methods, 600 connecting plates, 700 flange, 800 grooves, 101 convex tendons, 201 first dividing plate groups, 202 first baffle plates, 203 first cyclonic separation plate groups, 204 first orifice plates, 205 first profile of tooth crash panels, 206PCV valve, 207 first air outlet holes, 208 first oil return portions, 209 second oil return portions, 301 second partition groups, 302 second baffles, 303 second orifice plates, 304 second profile of tooth crash panels, 305 second air outlet holes, 306 the 3rd oil return portions, 307 the 4th oil return portions, 308 second cyclonic separation plate groups.
Embodiment
Describe technological scheme of the present invention in detail by the following examples, following embodiment is only exemplary, only can be used for explaining and technological scheme of the present invention being described, and can not be interpreted as being the restriction to technical solution of the present invention.
The invention provides a kind of motor cylinder protective shield being integrated with gas oil separation structure, as shown in Figures 6 to 9, the internal surface of cylinder cap guard shield 100 is provided with Oil-gas Separation room; The cylinder cap guard shield of the application refers to the cylinder cap guard shield being integrated with deaerator, and does not comprise the cylinder cap guard shield not being integrated with deaerator.In the technological scheme of the application, only relevant with the oil-gas separator structure on cylinder cap guard shield, and other structure arranged on cylinder cap guard shield is prior art, not in the protection domain of the application.
Described Oil-gas Separation room comprises the first Oil-gas Separation room 200 being positioned at air inlet side and the second Oil-gas Separation room 300 being positioned at exhaust side.
Described first Oil-gas Separation room 200 is level Four separation structure; Described second Oil-gas Separation room 300 is level Four separation structure.
Described first Oil-gas Separation room 200 includes the first dividing plate group 201, first baffle plate 202, first gear oiled-plate method 400, first cyclonic separation plate group 203, first orifice plate 204 and the first profile of tooth crash panel 205; First orifice plate 204 is distributed with several apertures of two row near cylinder cap shroud.First dividing plate group, the first vortex type separating plate group, the first profile of tooth crash panel and first gear oiled-plate method are in the face of the uniform surface fixed gap of cylinder cap guard shield; The gap of the gap of the number of aperture and diameter, the first dividing plate group, the first cyclonic separation plate group and the first profile of tooth crash panel and first gear oiled-plate method, the first baffle plate and cylinder cap guard shield top board is rationally arranged according to air-fuel mixture throughput.
Described two Oil-gas Separation rooms 300 include second partition group 301, second baffle 302, second gear oiled-plate method 500, second cyclonic separation plate group 308, second orifice plate 303 and the second profile of tooth crash panel 304; Second orifice plate 303 is distributed with several apertures of two row near cylinder cap shroud.Second partition group, the second cyclonic separation plate group, the second profile of tooth crash panel and second gear oiled-plate method are in the face of the uniform surface fixed gap of cylinder cap guard shield; The gap of the gap of the number of aperture and diameter, second partition group, the second cyclonic separation plate group and the second profile of tooth crash panel and second gear oiled-plate method, second baffle and cylinder cap guard shield top board is rationally arranged according to air-fuel mixture throughput.
A side of a side of described first dividing plate group, a side of described first cyclonic separation plate group and a side of described first profile of tooth crash panel, described second partition group, a side of described second cyclonic separation plate group and a side of described second profile of tooth crash panel are all connected with the internal surface of described cylinder cap guard shield.
Described first baffle plate and described first orifice plate are all connected with surface relative with described cylinder cap guard shield in described first gear oiled-plate method.
Described second baffle and described second orifice plate are all connected with surface relative with described cylinder cap guard shield in described second gear oiled-plate method.
Described first cyclonic separation plate group 203 is identical with the structure of the second cyclonic separation plate group 308, includes at least three french curvess be arranged in parallel; In the application, the key technology scheme that cyclonic separation plate group is the application is set in the air inlet side of cylinder cap guard shield and exhaust side increase, particularly cyclonic separation plate group is set at exhaust side, can ensures that motor reaches specified standard in high-speed and under high load discharge.In this application, french curves refers on the fore-and-aft direction of cylinder cap guard shield, and the center line of french curves is curve, and in the present embodiment, every block french curves is all perpendicular to the internal surface of cylinder cap guard shield; In order to improve the separating effect of cyclonic separation plate group, when doing to every block french curves the tangent line being parallel to cylinder cap guard shield axial centerline, every block french curves all has the tangent line of part to cut adjacent french curves.
Described first gear oiled-plate method 400 connects as one structure with described second gear oiled-plate method 500 by connecting plate 600.The length that the length of connecting plate is not only less than first gear oiled-plate method is also less than the length of second gear oiled-plate method; In the present embodiment, the two ends of connecting plate 600 are arc.
Described first gear oiled-plate method 400 is provided with the first oil return portion 208 and the second oil return portion 209; Described second gear oiled-plate method 500 is provided with the 3rd oil return portion 306 and the 4th oil return portion 307.For preventing oil gas from directly scurrying into separation chamber from oil return portion without separation, 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 is different and different according to position from the height in the 4th oil return portion.
Described first oil return portion and described second oil return portion are positioned at the same side of described first gear oiled-plate method; Described 3rd oil return portion and described 4th oil return portion are positioned at the same side of described second gear oiled-plate method.In the present embodiment, the first oil return portion and the second oil return portion are positioned at the side near connecting plate; 3rd oil return portion and the 4th oil return portion are positioned at the side away from connecting plate.
Described first gear oiled-plate method 400 and described second gear oiled-plate method 500 are provided with the flange 700 to described cylinder cap guard shield direction.Described flange 700 is provided with groove 800.Groove 800 and cylinder cap guard shield are welded to connect between certain altitude convex tendon 101, thus form the second Oil-gas Separation room of air inlet side first Oil-gas Separation room or exhaust side.
Cylinder cap guard shield corresponding to described first Oil-gas Separation room 200 is provided with the first air outlet hole 207; Described first air outlet hole 207 is provided with PCV (positive crankcase ventilation positive crankcase ventilation (PCV)) valve 206; Described Pcv valve 206 is by pipeline and intake manifold UNICOM; Cylinder cap guard shield corresponding to described second Oil-gas Separation room 300 is provided with the second air outlet hole 305; Described second air outlet hole 305 is by pipeline and air-strainer outlet side pipeline UNICOM; Second air outlet hole has concurrently simultaneously and fresh air is imported crankcase function.
In this application, first Oil-gas Separation is indoor from air inlet side inlet hole to the first air outlet hole direction of crankcase oil gas, is disposed with the first dividing plate group, the first baffle plate, the first oil return portion, the first cyclonic separation plate group, the second oil return portion, the first orifice plate and the first profile of tooth crash panel; First the fuel-air mixture entered from air inlet side inlet hole clashes into the first dividing plate group, and initial gross separation goes out larger oil droplet, realizes first order Oil-gas Separation; Then air-fuel mixture air-flow clashes into the first baffle plate and realizes second level Oil-gas Separation in advance process; Fuel-air mixture through secondary Oil-gas Separation flows to the first cyclonic separation plate group with certain speed, due to french curves design in the first cyclonic separation plate group, cause air-flow through out-of-date generation whirlpool, the density gentle due to oil is different, the gentle generation under the effect of whirlpool of oil is separated, larger oil droplet after separation directly drops on first gear oiled-plate method, and little oil droplet then impinges upon french curves surface and flows to the first orifice plate along its surface, completes third level Oil-gas Separation; Fuel-air mixture after third level Oil-gas Separation flows to the first profile of tooth crash panel after the first orifice plate and the first orifice plate with certain speed, and the first orifice plate and the first profile of tooth crash panel realize fourth stage Oil-gas Separation.
The centrifugation of the first orifice plate divides three aspects: one be fuel-air mixture directly and the non-wall surface of the hole of orifice plate collide and isolate oil gas, two be that oil gas to close on before orifice plate ostium with axially bored line is that running shaft produces whirlpool, light gas is thrown out of and realizes Oil-gas Separation, three is that the mixed gas flowing into aperture converges through aperture and accelerates, and little oil droplet is pooled comparatively larger oil droplet with castellated plates, fiercer collision occurs and isolate machine oil.
Machine oil content like this after above-mentioned level Four is separated in fuel-air mixture reduces greatly, and the gas after separation flows through Pcv valve and enters intake manifold and then enter combustion chambers burn.
Second Oil-gas Separation is indoor from exhaust side inlet hole to the second air outlet hole direction of crankcase oil gas, is disposed with second partition group, second baffle, the 3rd oil return portion, the second cyclonic separation plate group, the 4th oil return portion, the second orifice plate and the second profile of tooth crash panel; First the fuel-air mixture entered from exhaust side inlet hole clashes into second partition group, and initial gross separation goes out larger oil droplet, realizes second level Oil-gas Separation; Then air-fuel mixture air-flow clashes into second baffle and realizes second level Oil-gas Separation in advance process; Fuel-air mixture through secondary Oil-gas Separation flows to the second cyclonic separation plate group with certain speed, due to french curves design in the second cyclonic separation plate group, cause air-flow through out-of-date generation whirlpool, the density gentle due to oil is different, the gentle generation under the effect of whirlpool of oil is separated, larger oil droplet after separation directly drops on second gear oiled-plate method, and little oil droplet then impinges upon french curves surface and flows to the second orifice plate along its surface, completes third level Oil-gas Separation; Fuel-air mixture after third level Oil-gas Separation flows to the second profile of tooth crash panel after the second orifice plate and the second orifice plate with certain speed, and the second orifice plate and the second profile of tooth crash panel realize fourth stage Oil-gas Separation.
The centrifugation of the second orifice plate divides three aspects: one be fuel-air mixture directly and the non-wall surface of the hole of orifice plate collide and isolate oil gas, two be that oil gas to close on before orifice plate ostium with axially bored line is that running shaft produces whirlpool, light gas is thrown out of and realizes Oil-gas Separation, three is that the mixed gas flowing into aperture converges through aperture and accelerates, and little oil droplet is pooled comparatively larger oil droplet with castellated plates, fiercer collision occurs and isolate machine oil.
Oil-gas Separation principle is as follows:
Because crankcase is different from intake manifold or air filter air outlet pipe pressure difference, Under Different Work Condition of Engine lower crankcase ventilating path is different.
During low engine speed Smaller load, when generally referring to engine speed herein lower than 2000 turns, crankcase gas blowby is separated by air inlet side first Oil-gas Separation room, first gas blowby flows into from air inlet side inlet hole, simultaneously, when low engine speed Smaller load, due to the reason of pressure reduction, fresh air after air filter can flow into the second Oil-gas Separation room and crankcase by air outlet, exhaust side first Oil-gas Separation room second against oil gas flowing side, further fuel-air mixture in crankcase is swept air inlet side first Oil-gas Separation room and carry out Oil-gas Separation, prevent oil sump machine oil from going bad.
When the large load of high speed, when generally referring to that engine speed is more than 2000 turns herein, air-distributor pressure is higher, due to Pcv valve one-way conduction, air inlet side first Oil-gas Separation room simulation model for mixing gases flows is hindered, now, have part crankcase gas blowby to be separated by exhaust side second Oil-gas Separation room, first gas blowby flows into from exhaust side inlet hole, the machine oil content in fuel-air mixture is significantly reduced after above-mentioned level Four is separated, gas after separation flows into the steam outlet pipe of air-strainer by the second air outlet, flow into intake manifold and combustion chambers burn successively again.
Through Oil-gas Separation, the machine oil be separated flows to oil baffle oil return portion, gets back to oil sump from here.Like this, no matter which kind of operating mode motor operates in, and in crankcase, fuel-air mixture can obtain effective Oil-gas Separation, and keeps crankcase to obtain available ventilation, significantly reduces exhaust emission and avoids oil sump machine oil to go bad simultaneously.
Although illustrate and describe embodiments of the invention, for the ordinary skill in the art, be appreciated that and can carry out multiple change, amendment, replacement and modification to these embodiments without departing from the principles and spirit of the present invention, scope of the present invention is by claims and equivalency thereof.
Claims (10)
1. be integrated with a motor cylinder protective shield for gas oil separation structure, it is characterized in that: the internal surface of cylinder cap guard shield is provided with Oil-gas Separation room;
Described Oil-gas Separation room comprises the first Oil-gas Separation room being positioned at air inlet side and the second Oil-gas Separation room being positioned at exhaust side;
Described first Oil-gas Separation room is level Four separation structure; Described second Oil-gas Separation room is level Four separation structure.
2. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 1, is characterized in that: described first Oil-gas Separation room includes the first dividing plate group, the first baffle plate, first gear oiled-plate method, the first cyclonic separation plate group, the first orifice plate and the first profile of tooth crash panel;
Described two Oil-gas Separation rooms include second partition group, second baffle, second gear oiled-plate method, the second cyclonic separation plate group, the second orifice plate and the second profile of tooth crash panel;
A side of a side of described first dividing plate group, a side of described first cyclonic separation plate group, a side of described first profile of tooth crash panel, described second partition group, a side of described second cyclonic separation plate group and a side of described second profile of tooth crash panel are all connected with the internal surface of described cylinder cap guard shield;
Described first baffle plate and described first orifice plate are all connected with surface relative with described cylinder cap guard shield in described first gear oiled-plate method;
Described second baffle and described second orifice plate are all connected with surface relative with described cylinder cap guard shield in described second gear oiled-plate method.
3. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 2, is characterized in that: the structure of described first cyclonic separation plate group and described second cyclonic separation plate group is identical, includes at least three french curvess be arranged in parallel.
4. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 2, is characterized in that: described first gear oiled-plate method and described second gear oiled-plate method connect as one structure by connecting plate.
5. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 2 or 4, is characterized in that: on described first gear oiled-plate method, be provided with the first oil return portion and the second oil return portion; Described second gear oiled-plate method is provided with the 3rd oil return portion and the 4th oil return portion.
6. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 5, is characterized in that: described first oil return portion and described second oil return portion are positioned at the same side of described first gear oiled-plate method; Described 3rd oil return portion and described 4th oil return portion are positioned at the same side of described second gear oiled-plate method.
7. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 5, is characterized in that: the height in described first oil return portion is different from the height in described second oil return portion; The height in described 3rd oil return portion is different from the height in described 4th oil return portion.
8. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 2, is characterized in that: described first gear oiled-plate method and described second gear oiled-plate method are provided with the flange to described cylinder cap guard shield direction.
9. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 8, is characterized in that: on described flange, be provided with groove.
10. the motor cylinder protective shield being integrated with gas oil separation structure according to claim 1, is characterized in that: on the cylinder cap guard shield corresponding to described first Oil-gas Separation room, be provided with the first air outlet hole; Described first air outlet hole is provided with Pcv valve; Described Pcv valve is by pipeline and intake manifold UNICOM; Cylinder cap guard shield corresponding to described second Oil-gas Separation room is provided with the second air outlet hole; Described second air outlet hole is by pipeline and air-strainer outlet side pipeline UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493910.2A CN105003349A (en) | 2015-08-12 | 2015-08-12 | Engine cylinder head protection cover integrated with oil-gas separation structure |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510493910.2A CN105003349A (en) | 2015-08-12 | 2015-08-12 | Engine cylinder head protection cover integrated with oil-gas separation structure |
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| CN105003349A true CN105003349A (en) | 2015-10-28 |
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| CN201510493910.2A Pending CN105003349A (en) | 2015-08-12 | 2015-08-12 | Engine cylinder head protection cover integrated with oil-gas separation structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113417755A (en) * | 2021-07-23 | 2021-09-21 | 重庆长安汽车股份有限公司 | Cover plate structure of cylinder body oil-gas separator |
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| 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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| CN113417755A (en) * | 2021-07-23 | 2021-09-21 | 重庆长安汽车股份有限公司 | Cover plate structure of cylinder body oil-gas separator |
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Address after: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant after: Anhui Jianghuai Automobile Group Limited by Share Ltd Address before: 230601 Anhui Province, Hefei City Industrial Park, the Peach Blossom Road No. 669 Applicant before: Anhui Jianghuai Automotive Co., Ltd. |
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Application publication date: 20151028 |