CN207212510U - Cylinder cover of engine - Google Patents
Cylinder cover of engine Download PDFInfo
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- CN207212510U CN207212510U CN201720904028.7U CN201720904028U CN207212510U CN 207212510 U CN207212510 U CN 207212510U CN 201720904028 U CN201720904028 U CN 201720904028U CN 207212510 U CN207212510 U CN 207212510U
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Abstract
The utility model proposes a kind of cylinder cover of engine, including cylinder head cover housing, it is integrated in the gs-oil separator and gas passage of cylinder head cover housing side, diaphragm type PRV valves are provided with beside the gs-oil separator, diaphragm type PRV valves are integrated on cylinder head cover housing, the gas passage includes sub-load gas passage and full load gas passage, the sub-load gas passage and full load gas passage are separate and are respectively arranged with check valve, cylinder cover of engine of the present utility model can efficiently separate the oil droplet of small particle scope, oil-gas separation efficiency is high, it so can effectively control the oil consumption of TGDI engines, so as to control discharge, meet the standard of state six and produced to reducing engine sludge, and direct fuel-injection engine oil dilution improves significantly and optimized.
Description
Technical field
It the utility model is related to technical field of automobile engine, more particularly to a kind of cylinder cover of engine.
Background technology
In the course of the work, the gas pressure in crankcase constantly becomes automobile engine with the operation up and down of piston
Change, so that the mixed oil and gas in crankcase ,-waste gas that the machine oil of atomization is spilt with engine chamber-passes through engine oil return
Gap in road or engine driving system enters in cylinder cover of engine, then passes sequentially through the oil gas on cylinder cover of engine
Separator and gas handling system, eventually enter into engine chamber and burnt.
As shown in figure 1, a kind of cylinder cover of engine in prior art, the gs-oil separator of engine is using impact
It is board-like, bulky grain oil droplet can only be separated, low separation efficiency, causes engine oil carrying quantity big, after burning, increases exhaust emission；Pcv valve
002 is arranged on cylinder head cover by O-ring seal interference fit, is connected with sub-load pipe passage 004, is discharged according to state six
Standard, imperfection need to be disconnected with Pcv valve to crankcase and detected, add production cost；And Pcv valve 002 is pin
Valve type, flow is smaller, when engine piston air loss is larger, it is impossible to meets that crankcase ventilation system will to crankcase pressure
Ask；Full load pipe passage 005 is fitted without Pcv valve, is only connected to full load pipe joint 003, therefore engine is in full load work
When condition is run, it is impossible to effectively adjust crankcase pressure, crankcase ventilation system pressure requirements can not be fully met.
So the defects of the application is aimed to solve the problem that or alleviated in the prior art at least to some extent.
Utility model content
High the utility model proposes a kind of separative efficiency, engine oil carrying quantity is small, the small cylinder cover of engine of exhaust emission.
Cylinder cover of engine of the present utility model, including cylinder head cover housing, the oil gas point for being integrated in cylinder head cover housing side
From device and gas passage, diaphragm type PRV valves are provided with beside the gs-oil separator, diaphragm type PRV valves are integrated in cylinder cover enclosure
On body, the gas passage includes sub-load gas passage and full load gas passage, the sub-load gas passage and
Full load gas passage is separate and is respectively arranged with check valve, in sub-load gas passage and full load gas passage mouth
It is separately installed with sub-load pipe joint and full load pipe joint.
Further, the gs-oil separator includes Oil-gas Separation unit, and the Oil-gas Separation unit is arranged on by described
Cylinder head cover housing and it is fastenedly connected in the cavity that the bottom plate in the cylinder head cover housing bottom surrounds, the Oil-gas Separation unit bag
Include shock plate, on the vertical connection oil storage tank cover plate of first end of the shock plate, second, third and the 4th end of the shock plate
It is detachably connected on the inwall of the cylinder head cover housing, is provided with the shock plate for controlling air-fuel mixture respectively
The filter bores that thing passes through, in the vertical filter being provided with for separating oil droplet in the side of the shock plate, in the bottom plate
On be provided with air inlet, the oil storage for collecting oil droplet is provided with below the Oil-gas Separation unit on the bottom plate
Groove.
Further, the bottom of the oil storage tank is provided with spill port, and the bottom of the spill port is provided with check valve,
The check valve is normally closed type umbrella valve.
Further, it is provided with the top of the oil storage tank for the air-flow band after preventing the oil droplet after separating separated
Go out the oil storage tank cover plate of the oil storage tank, the upside of one end of the oil storage tank cover plate laterally fastens with the bottom of the shock plate
Connection, the downside of one end of the oil storage tank cover plate and the bottom plate firm contact；Oil is provided with the oil storage tank cover plate
Hole.
Further, the diaphragm type PRV valves include the valve spring branch of valve film, valve spring and the support valve spring
Fagging, the valve spring are arranged on the downside of the valve film and are vertically arranged with the valve film, the valve spring and valve film
Between be provided with valve spring supporting plate.
Further, the diaphragm type PRV valves also include bonnet.
Further, the filter is felt, in the vertical baffle plate for being provided with fixed felt of the opposite side of felt, gear
One end of plate is buckled in the housing for fixing felt, and the other end of baffle plate is free end, the housing and shock plate of fixed felt
It is fastenedly connected.
Further, it is in first angle between sub-load pipe joint and full load pipe joint.
Further, the PRV valves are non-dismountable.
For the utility model due to taking above technical scheme, it has advantages below：1st, engine cylinder of the present utility model
Its gs-oil separator of housing is separated using shock plate with the structure that felt combines to machine oil particle in crankcase gas blowby, can
The oil droplet of small particle scope is efficiently separated, oil-gas separation efficiency is high, and can effectively reduce consumption of lubricating oil, reduces exhaust emission；
2nd, the PRV valves that cylinder cover of engine of the present utility model uses is diaphragm types, and be integrated in it is non-dismountable on cylinder head cover housing, it is full
The sufficient discharge standard of state six disconnects the exemption requirement that failure is monitored to crankcase and Pcv valve, reduces production cost；3、
According to crankcase pressure characteristic distributions, effectively adjust crankcase pressure by PRV valves expires cylinder cover of engine of the present utility model
Sufficient design requirement, and by reversely supplementing fresh air, produced for reducing oil in engine mud, and direct fuel-injection engine machine oil
Dilution improves significantly and optimized.
Other features and advantages of the utility model will illustrate in the following description, also, partial from specification
In become apparent, or understood by implementing the utility model.The purpose of this utility model and other advantages can pass through
Specifically noted structure is realized and obtained in specification, claims and accompanying drawing.
Accompanying drawing content
Hereinafter will be more detailed to be carried out to the utility model based on only non-limiting embodiment and refer to the attached drawing
Description.Wherein：
Fig. 1 shows a kind of structure chart of cylinder cover of engine in the prior art；
Fig. 2 shows one embodiment of cylinder cover of engine of the present utility model；
Fig. 3 shows the inner side of the cylinder cover of engine shown in Fig. 2；
Fig. 4 shows the oil-gas separator structure figure in the cylinder cover of engine shown in Fig. 2；
Fig. 5 shows the Oil-gas Separation cellular construction figure in the gs-oil separator shown in Fig. 4；
Fig. 6 shows the front view of the Oil-gas Separation unit shown in Fig. 5；
Fig. 7 shows the PRV valve arrangement figures in the cylinder cover of engine shown in Fig. 2；
Fig. 8 shows the air inlet figure of the PRV valves shown in Fig. 7；
Fig. 9 shows the gas circulation figure in the cylinder cover of engine shown in Fig. 2；
Figure 10 shows reverse air intake structure and gas the circulation figure of the cylinder cover of engine shown in Fig. 2.
In figure, identical component is indicated by identical reference.Accompanying drawing is not drawn according to the ratio of reality.
Wherein, in figure mark for：
1st, cylinder head cover housing；2nd, gs-oil separator；3rd, PRV valves；4th, sub-load pipe joint；5th, full load pipe joint；6、
Air hatch；7th, spill port；8th, bottom plate；9th, reverse air inlet；10th, Oil-gas Separation unit；11st, sub-load gas passage；12nd, it is complete
Load gas passage；13rd, check valve；21st, shock plate；22nd, felt；23rd, baffle plate；24th, splash plate；25th, oil storage tank cover plate；26、
Umbrella valve；27th, filter bores；28th, oil storage tank；301st, PRV bonnets；302nd, PRV valve films；303rd, PRV valve springs supporting plate；304、
PRV valve springs；305th, gas feed after separating；306th, sub-load channel inlet mouth；307th, full load channel inlet mouth.
Embodiment
The utility model is described in further details below in conjunction with Figure of description and specific embodiment.
As shown in Figures 2 and 3, cylinder cover of engine of the present utility model, including cylinder head cover housing 1, it is integrated in cylinder head cover
The gs-oil separator 2 and gas passage of housing side, the side of gs-oil separator 2 are provided with diaphragm type PRV valves 3, diaphragm type PRV valves
3 are integrated on cylinder head cover housing 1, non-dismountable, and gas passage includes sub-load gas passage 11 and full load gas passage
12, sub-load gas passage 11 and full load gas passage 12 independently of each other and are respectively arranged with check valve 13, negative in part
12 mouthfuls of lotus gas passage 11 and full load gas passage are separately installed with sub-load pipe joint 4 and full load pipe joint 5.
Optionally, as shown in Figures 4 to 6, Fig. 4 shows the oil-gas separator structure figure in cylinder cover of engine, Fig. 5 and
Fig. 6 shows the structure of Oil-gas Separation unit, and gs-oil separator 2 includes Oil-gas Separation unit 10, and Oil-gas Separation unit 10 is set
By cylinder head cover housing 1 and it is being fastenedly connected in the cavity that the bottom plate 8 in the bottom of cylinder head cover housing 1 surrounds, Oil-gas Separation unit 10
Including shock plate 21, the first end of shock plate 21 is vertical to be connected on oil storage tank cover plate 25, the second end, the 3rd end of shock plate 21
It is detachably connected on the inwall of cylinder head cover housing 1, is provided with shock plate 21 for controlling oil gas respectively with the 4th end
The filter bores 27 that mixture passes through, in the vertical filter felt 22 being provided with for separating oil droplet in the side of shock plate 21,
In the vertical baffle plate 23 for being provided with fixed felt 22 of the opposite side of felt 22, one end of baffle plate 23 is buckled in the shell for fixing felt
On body, the other end of baffle plate 23 is free end, and the housing of fixed felt is fastenedly connected with shock plate 21, is provided with bottom plate 8
Air hatch 6, the lower section of Oil-gas Separation unit 10 is provided with oil storage tank 28 for collecting oil droplet on bottom plate 8.
Optionally, the bottom of oil storage tank 28 is provided with spill port 7, and normally closed type umbrella valve 26 is provided with the bottom of spill port 7.
Optionally, it is provided with the top of oil storage tank 28 and takes storage out of for the air-flow after preventing the oil droplet after separating separated
The oil storage tank cover plate 25 of oil groove 28, the upside of one end of oil storage tank cover plate 25 are laterally fastenedly connected with the bottom of shock plate 21, should
The downside at end and bottom plate firm contact；In addition, it is provided with oilhole on oil storage tank cover plate 25.
Optionally, as shown in Figure 7 and Figure 8, diaphragm type PRV valves 3 include valve film 302, valve spring 304 and support valve bullet
The valve spring supporting plate 303 of spring 304, valve film 302 are arranged on sub-load channel inlet mouth 306 and full load channel inlet mouth
At 307, valve spring 304 is arranged on the downside of valve film 302 and is vertically arranged with valve film 302, valve spring 304 and valve film 302
Between be provided with valve spring supporting plate 303, after diaphragm type PRV valves 3 install, sub-load channel inlet mouth 306 and complete negative
Lotus channel inlet mouth 307 is placed exactly among valve spring 304.
Optionally, diaphragm type PRV valves also include bonnet 301.
Optionally, it is in first angle between sub-load pipe joint 4 and full load pipe joint 5.
As shown in figure 9, the course of work of cylinder cover of engine of the present utility model is：Gas mixture enters from air hatch 6
Enter gs-oil separator 2 to be separated through Oil-gas Separation unit 10, isolate the small oil droplet of particle diameter.Machine oil after separation passes through oil storage
Oilhole in tank cover plate 25 flows to oil storage tank 28, and when certain altitude is arrived in machine oil accumulation, pressure caused by oil droplet overcomes umbrella valve 26
The pressure of outside crankcase III, umbrella valve 26 are opened, and carry out oil return.Wherein umbrella valve 26 is normally closed type, so can effectively prevent song
The gas blowby of axle box III is directly over spill port 7 and flowed to outside cylinder head cover without Oil-gas Separation unit 10, so as to reduce exhaust emission.
When gas after separation is by diaphragm type PRV valves 3, according to engine load size, the gas flow after separation is not
Same gas passage, I route are：In partial load condition, inlet manifold I is negative pressure, therefore gas entering part is born after separation
Lotus gas passage 11, inlet manifold is flowed to, meanwhile, gas flow full load gas passage 12 after sub-fraction separation；II route
For：In full load mode, inlet manifold I is malleation, therefore gas enters full load gas passage 12 after separation, after flowing to air filter
Flexible pipe, diaphragm type PRV valves 3 can the whole pressure for effectively adjusting crankcase III.
Diaphragm type PRV valves 3 are integrated on cylinder head cover housing 1, non-dismountable, meet the discharge standard of state six to crankcase with
Pcv valve disconnects the exemption requirement that failure is monitored, and reduces production cost.
As shown in Figure 10, it is III route：In the Smaller load stage, gas can be through full load pipe joint 5, by anti-after separation
Fresh air is supplemented to air inlet 9 to crankcase, so as to dry gas in crankcase, it is possible to reduce the production of oil in engine mud
It is raw, oil dilution is also had some improvement.
Although the utility model is described by reference to preferred embodiment, model of the present utility model is not being departed from
In the case of enclosing, various improvement can be carried out to it and part therein can be replaced with equivalent.Especially, as long as not depositing
The every technical characteristic being previously mentioned in structural hazard, each embodiment can combine in any way.The utility model
It is not limited to specific embodiment disclosed herein, but all technical schemes including falling within the scope of the appended claims.
Claims (9)
1. a kind of cylinder cover of engine, including cylinder head cover housing, the gs-oil separator and gas that are integrated in cylinder head cover housing side
Passage, it is characterised in that be provided with diaphragm type PRV valves beside the gs-oil separator, diaphragm type PRV valves are integrated in cylinder cover enclosure
On body, the gas passage includes sub-load gas passage and full load gas passage, the sub-load gas passage and
Full load gas passage is separate and is respectively arranged with check valve, in sub-load gas passage and full load gas passage mouth
It is separately installed with sub-load pipe joint and full load pipe joint.
2. cylinder cover of engine according to claim 1, it is characterised in that the gs-oil separator includes Oil-gas Separation list
Member, the Oil-gas Separation unit are arranged on by the cylinder head cover housing and are fastenedly connected the bottom plate in the cylinder head cover housing bottom
In the cavity surrounded, the Oil-gas Separation unit includes shock plate, and the first end of the shock plate is vertical to be connected to oil storage tank cover
On plate, the second end, the 3rd end and the 4th end of the shock plate are connected on the inwall of the cylinder head cover housing, described
The filter bores for controlling gas mixture to pass through are provided with shock plate, vertical be provided with is used in the side of the shock plate
The filter of oil droplet is separated, air inlet is provided with the bottom plate, the Oil-gas Separation unit is located on the bottom plate
Lower section be provided with oil storage tank for collecting oil droplet.
3. cylinder cover of engine according to claim 2, it is characterised in that the bottom of the oil storage tank is provided with oil return
Hole, check valve is provided with the bottom of the spill port, and the check valve is normally closed type umbrella valve.
4. cylinder cover of engine according to claim 2, it is characterised in that be provided with and be used at the top of the oil storage tank
The oil droplet after separation is prevented to be carried over the oil storage tank cover plate of the oil storage tank, the upside and the punching of described oil storage tank cover plate one end
The bottom for hitting plate is laterally fastenedly connected, the downside at the end of the oil storage tank cover plate and the bottom plate firm contact；In the storage
Oilhole is provided with oil groove cover plate.
5. cylinder cover of engine according to claim 1, it is characterised in that the diaphragm type PRV valves include valve film, valve
The valve spring supporting plate of spring and the support valve spring, the valve spring be arranged on the downside of the valve film and with the valve
Diaphragm is vertically arranged, and valve spring supporting plate is provided between the valve spring and valve film.
6. cylinder cover of engine according to claim 5, it is characterised in that the diaphragm type PRV valves also include bonnet.
7. cylinder cover of engine according to claim 2, it is characterised in that the filter is felt, in felt
The vertical baffle plate for being provided with fixed felt of opposite side, one end of baffle plate are buckled in the housing for fixing felt, baffle plate it is another
Hold and be fastenedly connected for free end, the housing of fixed felt with shock plate.
8. cylinder cover of engine according to claim 1, it is characterised in that sub-load pipe joint and full load pipe joint
Between be in first angle.
9. cylinder cover of engine according to claim 1, it is characterised in that the PRV valves are non-dismountable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904028.7U CN207212510U (en) | 2017-07-25 | 2017-07-25 | Cylinder cover of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720904028.7U CN207212510U (en) | 2017-07-25 | 2017-07-25 | Cylinder cover of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207212510U true CN207212510U (en) | 2018-04-10 |
Family
ID=61813813
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720904028.7U Active CN207212510U (en) | 2017-07-25 | 2017-07-25 | Cylinder cover of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207212510U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576335A (en) * | 2020-12-11 | 2021-03-30 | 奇瑞汽车股份有限公司 | Engine crankcase ventilation device |
-
2017
- 2017-07-25 CN CN201720904028.7U patent/CN207212510U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112576335A (en) * | 2020-12-11 | 2021-03-30 | 奇瑞汽车股份有限公司 | Engine crankcase ventilation device |
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