CN101435384A - Valve chamber cover cap - Google Patents
Valve chamber cover cap Download PDFInfo
- Publication number
- CN101435384A CN101435384A CNA2008102447565A CN200810244756A CN101435384A CN 101435384 A CN101435384 A CN 101435384A CN A2008102447565 A CNA2008102447565 A CN A2008102447565A CN 200810244756 A CN200810244756 A CN 200810244756A CN 101435384 A CN101435384 A CN 101435384A
- Authority
- CN
- China
- Prior art keywords
- valve chamber
- chamber cover
- valve
- deaerator
- cover
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000003466 welding Methods 0.000 claims description 9
- 239000004033 plastic Substances 0.000 claims description 7
- 229920003023 plastic Polymers 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 238000012938 design process Methods 0.000 abstract description 2
- 238000011161 development Methods 0.000 abstract 1
- 238000007789 sealing Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 25
- 239000003921 oil Substances 0.000 description 12
- 238000000926 separation method Methods 0.000 description 8
- 239000010721 machine oil Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 230000010354 integration Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
Images
Landscapes
- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
Abstract
The invention relates to a valve chamber cover. A labyrinth on the valve chamber cover, a separate oil-air separator and a separate PCV valve are integrated together and are placed on the valve chamber cover; therefore, part design process and supplier development can be centralized, the trouble of difficult assembly can be avoided and fitting sizes among parts can be ensured. Moreover, the valve chamber cover solves the problems of greater space occupation of dispersed parts, more assembly sealing surfaces and easy occurrence of oil-gas leakage.
Description
Technical field
The present invention relates to a kind of valve chamber cover, be specifically related to the plastics valve chamber cover of a kind of integrated PCV valve and deaerator.
Background technique
Because piston can produce certain air leakage and be leaked in the crankcase in movement process, add the inner machine oil evaporation of oil sump, increase along with the engine operational cycle number of times, crankcase gas inside pressure will raise gradually, can cause oil gas leakage in the crankcase like this, and along with the rising of pressure also can produce danger; Valve chamber cover is inner because chamber pressure is very big, and the valve guide bushing place also has the situation of valve chamber cover inside of going here and there in the combustion gas; Add that valve cage is inner because the temperature rising can produce machine oil steam, and this also can make the valve chamber cover internal pressure further raise, under this comprehensive condition, crankcase ventilation system has just shown the one side that it is indispensable.In addition, evaporate in order not make too much machine oil, the oil gas analytical system plays an important role again in this respect.
And general crankcase ventilation system all is that crankcase is communicated with the valve chamber cover chamber, gas carries out the oil gas pre-separation through the labyrinth that cyclinder head cover covers, a rubber hose of the connection that covers by cyclinder head cover enters into an independent gas and oil separating plant afterwards, and the gas of being incited somebody to action wherein by a pipeline leads to intake manifold, by a PCV valve gas is carried out pressure limiting then, gas that comes out by the PCV valve and intake manifold together with, final gas will enter combustion chambers burn and fall.
This traditional crankcase ventilation system pipeline is too tediously long, and be to connect by rubber hose, the length of rubber hose is to Oil-gas Separation and do not have what effect, only play the effect that connects two parts, and the too many leakage easily in tediously long like this structure joint fuel-air mixture, and bring difficulty for the overall layout of motor.
In sum, present domestic valve chamber cover all is only to be provided with the labyrinth mostly, and deaerator and PCV valve independently are provided with respectively, so just caused following technical problem: relatively disperse when (1) Element Design and supplier develop, be difficult for assembling and guarantee fit dimension between them, it is also bigger to take up room; (2) a plurality of part fitting tight faces are more, more easily produce oil gas and reveal.
Summary of the invention
The objective of the invention is to by integration mode, simplify engine arrangement and assembling, realize the assembly supply of material, reduce matching problem between component.
Specifically, the object of the present invention is to provide the plastics valve chamber cover of a kind of integrated PCV valve and deaerator, assembling is simplified, save the space and also solve the oil and gas leakage problem.
Technological scheme is: various systems are more perfect to combine the work of serving motor in order to make, the labyrinth that present domestic cyclinder head cover is covered, independent deaerator and independent PCV valve are integrated together, all concentrate and be placed on cyclinder head cover and cover, so just make Element Design process and supplier exploitation more concentrated, and saved the trouble of difficult assembling and guaranteed fit dimension between them, and overcome the dispersion part and taken up room bigger, fitting tight face is more, easily produces the problem that oil gas is revealed.
Valve chamber cover adopts plastic materials to make, the labyrinth structure design is one-sided valve chamber cover, the integrated deaerator in the outlet port in labyrinth, the outer pipe of deaerator is close to the cover cap wall and is extended to opposite side and communicate with integrated PCV valve arrangement, the outer pipe of PCV valve is crankcase bleed pipe, and deaerator, PCV valve and the integrated of valve chamber cover are finished.
Concrete technological scheme is as follows:
A kind of valve chamber cover, this cyclinder head cover cover and are integrated with deaerator and PVC valve.
Also comprise a labyrinth, described deaerator is installed in this place, air outlet, labyrinth.
Described deaerator is connected with the PCV valve by a connecting tube.
Described labyrinth is located at the one-sided of valve chamber cover, and deaerator extends to opposite side by connecting tube and is connected with the PCV valve.
This valve chamber cover adopts plastic materials to make.
Adopt the mode of friction welding to connect between deaerator and the air outlet, labyrinth.
Adopt the mode of friction welding to connect between PCV valve and the valve chamber cover.
The outer pipe of PCV valve is the crankcase bleed pipe that is located at the cyclinder head cover tops, and this crankcase bleed pipe connects engine intake manifold.
Described connecting tube is close on the cyclinder head cover tegmental wall and welding with it.
Be provided with staggered alternate dividing plate in the connecting tube.
Compare with present prior art, beneficial effect of the present invention is embodied in: by valve chamber cover, deaerator, these three parts that separate of PCV valve are integrated together, are convenient to assembling, make things convenient for general arrangement, and better realize the cooperation between component.
Description of drawings
Fig. 1 is the plan view of valve chamber cover
Fig. 2 is the structural drawing of deaerator
Fig. 3 is the structural drawing of PCV valve
1. fuel-air mixture inlet, 2. labyrinth (outside), 3. deaerator, 4. connecting tube, 5. oil filler, 6.PCV valve, 7. crankcase bleed pipe
Embodiment
Describe the present invention with reference to the accompanying drawings below, it is a kind of preferred embodiment in the numerous embodiments of the present invention.
Accompanying drawing 1 is the plan view of valve chamber cover, fuel-air mixture 1 enters valve chamber cover labyrinth 2 by entering the mouth, entering the deaerator 3 that is integrated on the cover cap again through the mixed gas of labyrinth pre-separation separates, the U-shaped pipe of machine oil after the separation by deaerator bottom drips back on the movement parts such as camshaft below the valve chamber cover, after this connecting tube 4 of establishing tortuous separator channels in gas passes through again enters PCV valve 6, and the crankcase bleed pipe 7 by the cover cap top enters into engine intake manifold afterwards.Finish in the path of fuel-air mixture in valve chamber cover.
Adopt the plastics valve chamber cover, optimize the design of original cover cap labyrinth, deaerator is installed in place, air outlet, labyrinth, owing to be working of plastics, so can connect by the mode of friction welding fully between them, and this welded seal is tightly attractive in appearance, and weld can not produce problems such as poor fit, oil gas leakage, and the structure of deaerator and conventional oil gas separating device are similar.After this with the connecting tube (can save the space like this) that is close to cover cap wall welding deaerator is linked to each other with the PCV that is integrated in the other end, what the structure of PCV valve also can be with common form is similar.The integration mode of PCV valve and cover cap also can be realized easily by friction welding, like this by valve chamber cover, deaerator, these three parts that separate of PCV valve are integrated together, be convenient to assembling, make things convenient for general arrangement, and better realize the cooperation between component.
Employing is with the labyrinth, deaerator, the PCV valve is integrated into structure on the cover cap and has simplified annexation between them greatly, and cut structure open as can be seen from the connecting tube 4 that connects deaerator and PCV valve as shown in Figure 1, adopted staggered alternate dividing plate in the middle of the connecting tube, the path walked of gas, the inside can be very long in fact so just to make the connecting tube that seems short, gas can be received further Oil-gas Separation again in tortuous like this space, strengthened the effect of Oil-gas Separation, Oil-gas Separation so repeatedly, almost thoroughly separated to this step oil gas, the U type pipe of the equal section of machine oil after the separation by deaerator 3 bottoms drips return-air door chamber interior, gas enters the PCV valve afterwards, enters intake manifold by cover cap top crankcase bleed pipe 7 again.
What accompanying drawing 2 and accompanying drawing 3 were represented respectively is the general configuration of deaerator and PCV valve, of the present inventionly focuses on the integrated of whole valve chamber cover, rather than the structure of single integrated part, so deaerator and PCV are not described in detail at this.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as the various improvement of having adopted method design of the present invention and technological scheme to carry out; or directly apply to other occasion without improvement, all within protection scope of the present invention.
Claims (10)
1, a kind of valve chamber cover is characterized in that, this cyclinder head cover covers and is integrated with deaerator (3) and PVC valve (6).
2, valve chamber cover as claimed in claim 1 is characterized in that, also comprises a labyrinth (2), and described deaerator (3) is installed in place, air outlet, this labyrinth (2).
3, valve chamber cover as claimed in claim 1 or 2 is characterized in that, described deaerator (3) is connected with PCV valve (6) by a connecting tube (4).
4, valve chamber cover as claimed in claim 3 is characterized in that, described labyrinth (2) are located at the one-sided of valve chamber cover, and deaerator (3) extends to opposite side by connecting tube (4) and is connected with PCV valve (6).
5, valve chamber cover as claimed in claim 1 or 2 is characterized in that, this valve chamber cover adopts plastic materials to make.
6, as claim 2 or 4 described valve chamber covers, it is characterized in that, adopt the mode of friction welding to connect between deaerator (3) and the air outlet, labyrinth (2).
7, as claim 3 or 4 described valve chamber covers, it is characterized in that, adopt the mode of friction welding to connect between PCV valve (6) and the valve chamber cover.
8, valve chamber cover as claimed in claim 3 is characterized in that, the outer pipe of PCV valve (6) is the crankcase bleed pipe (7) that is located at the cyclinder head cover tops, and this crankcase bleed pipe (7) connects engine intake manifold.
9, valve chamber cover as claimed in claim 3 is characterized in that, described connecting tube (4) is close on the cyclinder head cover tegmental wall and welding with it.
10, as claim 3 or 9 described valve chamber covers, it is characterized in that, be provided with staggered alternate dividing plate in the described connecting tube (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102447565A CN101435384B (en) | 2008-12-16 | 2008-12-16 | Valve chamber cover cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008102447565A CN101435384B (en) | 2008-12-16 | 2008-12-16 | Valve chamber cover cap |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101435384A true CN101435384A (en) | 2009-05-20 |
| CN101435384B CN101435384B (en) | 2011-09-21 |
Family
ID=40709984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008102447565A Active CN101435384B (en) | 2008-12-16 | 2008-12-16 | Valve chamber cover cap |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101435384B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146824A (en) * | 2011-04-29 | 2011-08-10 | 淮阴工学院 | Crankcase ventilation system for engine |
-
2008
- 2008-12-16 CN CN2008102447565A patent/CN101435384B/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102146824A (en) * | 2011-04-29 | 2011-08-10 | 淮阴工学院 | Crankcase ventilation system for engine |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101435384B (en) | 2011-09-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8955501B2 (en) | PCV valve mounting structures | |
| US6978744B2 (en) | Two-cycle combustion engine with air scavenging system | |
| RU2709006C2 (en) | Modular inlet header, method of providing such manifold and engine and intake system assembly for vehicle | |
| JPH04269367A (en) | Suction manifold for internal combustion engine | |
| CN105257367B (en) | Engine with supercharger oil and gas separating system | |
| JP2010230009A (en) | Internal combustion engine | |
| CN108049937A (en) | Oil and gas separating system built in valve mechanism cover | |
| CN102562222B (en) | Gas-oil separation check valve of automobile crankcase | |
| CN101435384B (en) | Valve chamber cover cap | |
| CN201507334U (en) | Crankcase ventilation system of internal combustion engine | |
| CN104033209B (en) | From engine pack and the method thereof of engine blow-by gas separation machine oil | |
| CN107725145A (en) | A kind of crankcase ventilation system | |
| CN107642442B (en) | Suction pipe of laminar scavenging engine | |
| US10718241B2 (en) | Engine housing component | |
| CN202073621U (en) | Ventilation system of crankcase | |
| CN112761754B (en) | Highly integrated crankcase ventilation separator | |
| CN205805749U (en) | Cover assembly of cylinder head for Oil-gas Separation | |
| CN106089485A (en) | Engine air cylinder cap assembly | |
| CN102425475A (en) | Forced ventilation system of engine crankcase | |
| CN203515732U (en) | Engine | |
| CN203962088U (en) | The sump for internal combustion engine oil guard of integrated fuel filter | |
| CN107905909A (en) | Air cylinder lid cover component | |
| CN205001602U (en) | Novel PCV valve | |
| CN206329403U (en) | A kind of cylinder cap of integrated PCV passage | |
| CN217327459U (en) | Engine respiratory system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |