CN204646361U - A kind of engine crankshaft ventilation system - Google Patents
A kind of engine crankshaft ventilation system Download PDFInfo
- Publication number
- CN204646361U CN204646361U CN201520117915.0U CN201520117915U CN204646361U CN 204646361 U CN204646361 U CN 204646361U CN 201520117915 U CN201520117915 U CN 201520117915U CN 204646361 U CN204646361 U CN 204646361U
- Authority
- CN
- China
- Prior art keywords
- air
- ventilation system
- engine crankshaft
- strainer
- utility
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of engine crankshaft ventilation system, it comprises air-strainer and the air inlet pipeline of drawing thereafter, fresh air outside passage, the dirty air passageways of external secondary and inner air flue.Wherein said fresh air outside passage is connected with the air inlet pipeline after described air-strainer with the dirty air passageways of external secondary, and described inner air flue is connected with the intake manifold of motor.The vehicular engine crankcase ventilation system that the utility model relates to, is conducive to clean crankcase, extends machine oil working life; Meanwhile, adopt inner dirty air passageways, be conducive to evading pipeline ice formation issues cold season.
Description
Technical field
The utility model relates to technical field of engines, particularly a kind of engine crankshaft ventilation system.
Background technique
Typically, conventional vehicular engine crankcase is a relatively airtight space, motor is in running, gas (combustion gas in part cylinder, air and products of combustion) crankcase can be scurried into from the gap of piston ring and cylinder wall, this is the main source of gas blowby (Blow-by gas).
And for supercharged engine, some gas blowby carrys out automatic pressure intensifier, the waste gas of booster turbine end by the lubricating oil path of oil seal leak to bearing, then along with lubrication system enters crankcase.If this part gas can not be derived in time, crankcase pressure will be caused more and more higher, motor can be caused and reveal, and crank case gases directly enter air, can cause environmental pollution.Therefore we need this part gas blowby to be incorporated into intake manifold, then reenter cylinder combustion and burn.
Gas blowby contacts the deterioration accelerating machine oil with machine oil.Main component in gas blowby comprises unburned carbon hydrogen, nitrogen oxide, oxycarbide, water and fuel oil, there are some researches show, the guide that machine oil greasy filth produces is do not have perfect combustion in gas blowby hydrocarbon, their are assembled and react with machine oil and form greasy filth, in addition, the oxycarbide in gas blowby and nitrogen oxide can cause the oxidation of machine oil and nitrated, and the water in gas blowby and fuel oil can cause emulsification and the fuel dilution of machine oil.These all can cause machine oil hydraulic performance decline, thus cause engine scuffing.So reduce gas blowby to contact the working life being conducive to extending machine oil with machine oil.
In addition, for crankcase ventilation system, an important inefficacy is had to be exactly the problem that cold season, pipeline froze.Because containing a large amount of aqueous vapor (from gas blowby) in crank case gases, when the gas flow of humidity is when ice-cold air pipeline, channel interior can be caused to freeze, when whole pipeline completely freeze block after, crankcase just becomes a complete airtight space, the gas blowby constantly scurried into can cause the rising of crankcase pressure, until crankcase is revealed.In order to avoid this problem, can shorten the length of crankcase ventilation pipeline when we design as much as possible, and increase the diameter of pipeline as far as possible, these measures can reduce icing risk to a certain extent.But can not tackle the problem at its root.
Therefore, necessaryly develop a kind of novel vehicular engine crankcase ventilation system, overcome defect of the prior art.
Model utility content
The purpose of this utility model is to provide a kind of engine crankshaft ventilation system, and it is conducive to clean crankcase, extends machine oil working life; Can also be conducive to evading pipeline ice formation issues cold season simultaneously.
To achieve these goals, the technical solution adopted in the utility model is as follows.
A kind of engine crankshaft ventilation system, it air inlet pipeline comprising air-strainer and draw after described air-strainer, and, also comprise fresh air outside passage, the dirty air passageways of external secondary and inner air flue, wherein said fresh air outside passage is connected with the air inlet pipeline after described air-strainer with the dirty air passageways of external secondary, and described inner air flue is connected with the intake manifold of motor.
Further, in an Alternate embodiments of the present utility model, described fresh air outside passage is provided with the first one-way valve.
Further, in an Alternate embodiments of the present utility model, the dirty air passageways of described external secondary is provided with the second one-way valve.
Further, in an Alternate embodiments of the present utility model, described inner air flue is provided with the 3rd one-way valve.
Further, in an Alternate embodiments of the present utility model, described fresh air outside passage and the dirty air passageways of described external secondary are connected on the air inlet pipeline after described air-strainer by a tee union.
Further, in an Alternate embodiments of the present utility model, described inner air flue comprises the inner passage be arranged in engine cylinder-body.
Further, in an Alternate embodiments of the present utility model, described inner air flue comprises the inner passage be arranged in engine cylinder cover.
Further, in an Alternate embodiments of the present utility model, described inner air flue comprises the inner passage be arranged in motor upper cover.
Further, in an Alternate embodiments of the present utility model, on the air inlet pipeline of described fresh air outside expanding channels between described air-strainer and pressurized machine.
Further, in an Alternate embodiments of the present utility model, the dirty air passageways of described external secondary is connected on the air inlet pipeline between described air-strainer and pressurized machine.
Relative to prior art, the beneficial effects of the utility model are: a kind of engine crankshaft ventilation system that the utility model relates to, and are conducive to clean crankcase, extend machine oil working life.And, adopt dirty inside air passage, be conducive to evading pipeline ice formation issues cold season.
Accompanying drawing explanation
Fig. 1 is the vehicular engine crankcase ventilation system structural representation according to a mode of execution intermediate operating mode of the present utility model.
Fig. 2 is the vehicular engine crankcase ventilation system structural representation according to a mode of execution middle and high load working condition of the present utility model.
Description of reference numerals in figure is as follows.
Embodiment
Below with reference to drawings and Examples, the technological scheme of a kind of engine crankshaft ventilation system that the utility model relates to is described in further detail.
Easy understand, according to the technical solution of the utility model, is not changing under connotation of the present utility model, and one of ordinary skill in the art can propose the various structures mode that can mutually replace and implementation.Therefore, following embodiment and accompanying drawing are only the exemplary illustrations to the technical solution of the utility model, and should not be considered as of the present utility model all or the restriction be considered as technical solutions of the utility model or restriction.
The orientation terms such as the up, down, left, right, before and after mentioned in this manual, front, the back side, top, bottom carry out defining relative to the structure shown in each accompanying drawing, they are relative concepts, therefore likely can residing for it diverse location, different using state and correspondingly changing.So, also these or other orientation term should be interpreted as restricted term.
Refer to shown in Fig. 1, the mode of execution that the utility model relates to provides a kind of engine crankshaft ventilation system, it air inlet pipeline 20 comprising air-strainer and draw thereafter.
Further, it also comprises fresh air outside passage 11, the dirty air passageways of external secondary 12 and inner air flue 13.Each passage being provided with one-way valve in order to control the trend of air-flow, is first, second and the 3rd one-way valve 21,22,23 successively respectively.
Wherein fresh air outside passage 11 and the dirty air passageways 12 of external secondary are connected on the air inlet pipeline 20 between air-strainer and pressurized machine by a tee union 10.And inner air flue 13 is connected with the intake manifold of motor.
Further, wherein inner air flue comprises the inner passage in the inner passage be arranged in engine cylinder-body, cylinder cap and the inner passage in upper cover.
During work, refer to shown in Fig. 1, it has shown the operating conditions under part load engine.Now, secondary dirty air passageways 12 is closed under the effect of the second one-way valve 22, and fresh air is drawn from the air inlet pipeline 20 after air-strainer.As shown in the direction of arrow in figure, enter crankcase scavenging, then enter deaerator by the inner passage 13 in cylinder block and head, the crank case gases after Oil-gas Separation enters intake manifold by the inner passage 13 of upper cover and cylinder cap again.Whole dirty air passageways all in engine interior circulation, even if also can maintain higher temperature in cold season, thus avoids ice formation issues.
Fig. 2 be then display be operating conditions under high engine load.Now, the dirty air passageways 13 of fresh air outside passage 11 and inside is all closed, gas flow direction, and as shown by arrows in FIG., crank case gases enters pressurized machine front end by the dirty air passageways 12 of external secondary.
Through the detection of engine rig test, use fresh air after crankcase scavenging, the NOx content in crankcase is obviously reduced, and illustrates that gas blowby content residual in crankcase reduces.Thus better can protect machine oil.Meanwhile, application of the present utility model also have passed the checking of car load crankcase ventilation system test in winter smoothly.
Technical scope of the present utility model is not only confined to the content in above-mentioned explanation, those skilled in the art can under the prerequisite not departing from the utility model technological thought, various deformation and amendment are carried out to above-described embodiment, and these distortion and amendment all should be worked as and belonged in scope of the present utility model.
Claims (10)
1. an engine crankshaft ventilation system, it air inlet pipeline comprising air-strainer and draw after described air-strainer, it is characterized in that, also comprise fresh air outside passage, the dirty air passageways of external secondary and inner air flue, wherein said fresh air outside passage is connected with the air inlet pipeline after described air-strainer with the dirty air passageways of external secondary, and described inner air flue is connected with the intake manifold of motor.
2. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, wherein said fresh air outside passage is provided with the first one-way valve.
3. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, the dirty air passageways of wherein said external secondary is provided with the second one-way valve.
4. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, wherein said inner air flue is provided with the 3rd one-way valve.
5. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, wherein said fresh air outside passage and the dirty air passageways of described external secondary are connected on the air inlet pipeline after described air-strainer by a tee union.
6. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, wherein said inner air flue comprises the inner passage be arranged in engine cylinder-body.
7. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, wherein said inner air flue comprises the inner passage be arranged in engine cylinder cover.
8. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, wherein said inner air flue comprises the inner passage be arranged in motor upper cover.
9. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, on the air inlet pipeline of wherein said fresh air outside expanding channels between described air-strainer and pressurized machine.
10. a kind of engine crankshaft ventilation system as claimed in claim 1, is characterized in that, the dirty air passageways of wherein said external secondary is connected on the air inlet pipeline between described air-strainer and pressurized machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520117915.0U CN204646361U (en) | 2015-02-27 | 2015-02-27 | A kind of engine crankshaft ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520117915.0U CN204646361U (en) | 2015-02-27 | 2015-02-27 | A kind of engine crankshaft ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204646361U true CN204646361U (en) | 2015-09-16 |
Family
ID=54099125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520117915.0U Expired - Fee Related CN204646361U (en) | 2015-02-27 | 2015-02-27 | A kind of engine crankshaft ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204646361U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194331A (en) * | 2016-09-30 | 2016-12-07 | 奇瑞汽车股份有限公司 | A kind of engine with supercharger crankcase ventilation system |
| CN107201929A (en) * | 2017-07-27 | 2017-09-26 | 安徽江淮汽车集团股份有限公司 | Crankcase ventilation system |
| CN107859548A (en) * | 2017-11-10 | 2018-03-30 | 哈尔滨东安汽车发动机制造有限公司 | A kind of triton system for avoiding triton pipe from freezing |
| CN107882612A (en) * | 2017-10-23 | 2018-04-06 | 奇瑞汽车股份有限公司 | Crankcase ventilation system |
| CN108894852A (en) * | 2018-06-20 | 2018-11-27 | 浙江吉利控股集团有限公司 | A kind of engine gas supplementary structure |
-
2015
- 2015-02-27 CN CN201520117915.0U patent/CN204646361U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106194331A (en) * | 2016-09-30 | 2016-12-07 | 奇瑞汽车股份有限公司 | A kind of engine with supercharger crankcase ventilation system |
| CN107201929A (en) * | 2017-07-27 | 2017-09-26 | 安徽江淮汽车集团股份有限公司 | Crankcase ventilation system |
| CN107882612A (en) * | 2017-10-23 | 2018-04-06 | 奇瑞汽车股份有限公司 | Crankcase ventilation system |
| CN107859548A (en) * | 2017-11-10 | 2018-03-30 | 哈尔滨东安汽车发动机制造有限公司 | A kind of triton system for avoiding triton pipe from freezing |
| CN108894852A (en) * | 2018-06-20 | 2018-11-27 | 浙江吉利控股集团有限公司 | A kind of engine gas supplementary structure |
| CN108894852B (en) * | 2018-06-20 | 2020-02-11 | 台州滨海吉利发动机有限公司 | Air supplement structure of engine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204646361U (en) | A kind of engine crankshaft ventilation system | |
| CN204239013U (en) | A kind of engine PCV system | |
| CN108131178A (en) | A kind of engine with supercharger crankcase ventilation system structure | |
| CN201284681Y (en) | Engine crankcase ventilation system | |
| CN104074635A (en) | Blow-by gas recirculating system for internal combustion engine | |
| CN111997710A (en) | Engine crankcase ventilation system and method | |
| CN112901309A (en) | Active two-stroke engine crankcase ventilation system | |
| CN205532781U (en) | Ventilation system of adjustable crankcase pressure | |
| CN203257558U (en) | Supercharged engine air cylinder head cover of integrated crankcase ventilation system | |
| CN203655384U (en) | Oil-gas separation structure of engine cylinder head cover | |
| CN104500174A (en) | Oil-gas separator | |
| CN108397255B (en) | Lubricating system of horizontal opposed piston engine for aviation | |
| CN102678229B (en) | A kind of engine body oil gas circulating oil filtering system | |
| CN202468044U (en) | Small gasoline engine cylinder cover | |
| CN104948262A (en) | Oil-gas separator | |
| CN202991189U (en) | Pressure balancing system for supercharged petrol engine crankcase | |
| CN202170823U (en) | Forced ventilation system of engine | |
| CN106640443B (en) | Can water conservancy diversion crankcase ventilation gas inlet manifold | |
| US20160222847A1 (en) | Crankcase ventilation device for vehicle | |
| CN202431328U (en) | Oil-gas separation system with baffle boards | |
| CN201635831U (en) | Oil return device of turbocharger | |
| CN204804902U (en) | Anti -freeze crankcase ventilation system pipeline structure | |
| CN103603703A (en) | Inlet air pressure adjusting type oil discharging device | |
| CN203847203U (en) | Mixer for forced ventilation system of crankcase | |
| CN203847277U (en) | Exhaust gas circulating system of motorcycle engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150916 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |