CN207437160U - A kind of crankcase ventilation system - Google Patents
A kind of crankcase ventilation system Download PDFInfo
- Publication number
- CN207437160U CN207437160U CN201721523510.2U CN201721523510U CN207437160U CN 207437160 U CN207437160 U CN 207437160U CN 201721523510 U CN201721523510 U CN 201721523510U CN 207437160 U CN207437160 U CN 207437160U
- Authority
- CN
- China
- Prior art keywords
- exhaust passage
- pcv valve
- oil
- oil separator
- inlet manifold
- 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.)
- Active
Links
Abstract
The utility model discloses a kind of crankcase ventilation system, including Pcv valve, air pipeline, the gs-oil separator being arranged on cylinder head cover and the inlet manifold being connected on cylinder cap；The Pcv valve is welded in gs-oil separator, the cavity of gs-oil separator is separated into oil-gas separation chamber and connecting cavity two parts, oil-gas separation chamber is connected by Pcv valve with connecting cavity；The air pipeline is made of the first exhaust passage being opened on cylinder head cover and the second exhaust passage being opened on cylinder cap, and the first exhaust passage is connected with connecting cavity, and the second exhaust passage is connected with first exhaust passage, inlet manifold.Crankcase ventilation system can effectively meet new national emission regulation demands, avoid the occurrence of gas leakage.
Description
Technical field
The utility model is related to a kind of automotive engine components, and in particular to a kind of crankcase ventilation system.
Background technology
The Pcv valve of gs-oil separator is the important composition component of engine crankshaft ventilation system, in crankcase ventilation system
Would generally Pcv valve be installed on gs-oil separator and the connecting line of inlet manifold in system to ensure that crankcase ventilation system is in
Negative pressure state.
As shown in Figure 1, existing crankcase ventilation system includes Pcv valve 3, external connecting pipe 4, is arranged on cylinder head cover 1
Gs-oil separator 2 and the inlet manifold 5 that is connected on cylinder cap 6, Pcv valve 3 is by way of interference fit mounted on oil gas point
Outlet from device 2 is connected with gs-oil separator 2, and one end of external connecting pipe 4 is connected with Pcv valve, the other end and inlet manifold 5
Connection, and pass through clip and be fixed.The exhaust gas of crankcase, which enters, carries out Oil-gas Separation, the gas after separation in gs-oil separator 2
Body enters inlet manifold 5 by Pcv valve 3, external connecting pipe 4, is then transmitted to combustion chamber and burns away.
There are the following problems for above-mentioned crankcase ventilation system：（1）New national emission regulation demands are unsatisfactory for, because new
The connection that national emission regulation demands are disconnected between Pcv valve and gs-oil separator is needed substantially than disconnecting Pcv valve and inlet manifold
Between connection it is more difficult, and the connection between Pcv valve and gs-oil separator and disconnected is disconnected in above-mentioned crankcase ventilation system
It is identical to open the complexity of the connection between Pcv valve and inlet manifold, all very simple, it is only necessary to which common instrument just can be complete
Into；（2）If the installation place of Pcv valve and gs-oil separator occurs loosening or external connecting pipe and Pcv valve, the company of inlet manifold
The place of connecing loosens, then in the installation place or the junction, there are the risks that gas leaks；（3）It is external under extremely cold environment
Connecting tube is brushed be subject to cold air, can cause condensation vapor ice cube, and external connecting pipe is blocked when serious and causes crankcase pressure
High and engine oil leakage.
The content of the invention
The purpose of this utility model is to provide a kind of crankcase ventilation system, will effectively to meet new national emission regulation
It asks, avoids the occurrence of gas leakage.
Crankcase ventilation system described in the utility model includes Pcv valve, air pipeline, the oil gas being arranged on cylinder head cover
Separator and the inlet manifold being connected on cylinder cap；The Pcv valve is welded in gs-oil separator, by the cavity of gs-oil separator
Oil-gas separation chamber and connecting cavity two parts are separated into, oil-gas separation chamber is connected by Pcv valve with connecting cavity；The air pipeline by
The first exhaust passage being opened on cylinder head cover and the second exhaust passage being opened on cylinder cap are formed, the first exhaust passage
It is connected with connecting cavity, the second exhaust passage is connected with first exhaust passage, inlet manifold.The exhaust gas of crankcase enters oil gas
The Oil-gas Separation intracavitary of separator carries out Oil-gas Separation, and the gas after separation passes through Pcv valve, connecting cavity, first exhaust passage, the
Two exhaust passages enter inlet manifold, are then transmitted to combustion chamber and burn away.
The close inlet manifold one side of the cylinder head cover has reinforcing prop, and the first exhaust passage is opened in reinforcing prop
It is interior；The second exhaust passage is corresponding with first exhaust passage, and is opened in the connection inlet manifold one side of cylinder cap.
The utility model compared with prior art, has the following effects that：
（1）During engine is normally repaired and disassembled, simple common tool dismounting can be used by inlet manifold and cylinder
The bolt of connection is covered, disconnects the connection between Pcv valve and inlet manifold, and Pcv valve is welded in gs-oil separator, for PCV
The disconnection connected between valve and gs-oil separator, the structure that instrument can only be used to destroy cylinder head cover could realize which will
Irreversible damage is generated to engine；Therefore, disconnect the difficulty being connected between Pcv valve and gs-oil separator and be significantly greater than and break
The difficulty being connected between Pcv valve and inlet manifold is opened, effectively meets new national emission regulation demands.
（2）Pcv valve is welded in gs-oil separator, and the first exhaust passage of air pipeline is opened on cylinder head cover, and second
Exhaust passage is opened on cylinder cap, eliminates external connecting pipe, avoids the risk that gas leakage occurs in junction.
（3）The first exhaust passage of air pipeline is opened on cylinder head cover, and second exhaust passage is opened on cylinder cap, is cancelled
External connecting pipe, since cylinder head cover and cylinder cap have certain temperature, under extremely cold environment, in first, second exhaust passage
Steam will not congeal into ice, and be not in the situation for blocking crankcase ventilation system.
（4）Simple in structure, at low cost, the arrangement of Pcv valve and first, second exhaust passage is to gs-oil separator
The critical performance parameters such as flow resistance and separative efficiency do not influence.
Description of the drawings
Fig. 1 is the structure diagram of existing crankcase ventilation system.
Fig. 2 is the structure diagram of the utility model.
Fig. 3 is the A-A sectional views in Fig. 2.
Fig. 4 is the cavity of gs-oil separator and the position relationship schematic diagram of Pcv valve in the utility model.
Specific embodiment
It elaborates below in conjunction with the accompanying drawings to the utility model.
Crankcase ventilation system as shown in Figures 2 to 4, including Pcv valve 3, air pipeline, integrated molding in cylinder head cover 1
On gs-oil separator 2, the inlet manifold 5 that is bolted on cylinder cap 6 and be integrally formed the close air inlet in cylinder head cover 1
The reinforcing prop 7 of 5 one side of manifold.Pcv valve 3 is welded in gs-oil separator 2, and the cavity of gs-oil separator 2 is separated olefiant gas point
From 22 two parts of chamber 21 and connecting cavity, air pipeline is made of first exhaust passage 11 and second exhaust passage 61, first exhaust
Passage 11 is opened in reinforcing prop 7, and second exhaust passage 61 is corresponding with first exhaust passage 11, and is opened in the connection of cylinder cap 6
5 one side of inlet manifold, first exhaust passage 11, second exhaust passage 61 add bore mode to be formed by machine；Oil-gas separation chamber 21
It is connected by Pcv valve 3 with connecting cavity 22, connecting cavity 22 is connected with first exhaust passage 11, first exhaust passage 11 and second row
Gas passage 61 connects, and second exhaust passage 61 is connected with inlet manifold 5.
The exhaust gas of crankcase, which enters, carries out Oil-gas Separation, the gas after separation in the oil-gas separation chamber 21 of gs-oil separator 2
Inlet manifold 5 is entered by Pcv valve 3, connecting cavity 22, first exhaust passage 11, second exhaust passage 61, is then transmitted to combustion
Room is burnt to burn away.
Claims (2)
1. a kind of crankcase ventilation system, including Pcv valve（3）, air pipeline, be arranged on cylinder head cover（1）On gs-oil separator
（2）Be connected to cylinder cap（6）On inlet manifold（5）；It is characterized in that：
The Pcv valve（3）It is welded on gs-oil separator（2）It is interior, by gs-oil separator（2）Cavity be separated into oil-gas separation chamber
（21）And connecting cavity（22）Two parts, oil-gas separation chamber（21）Pass through Pcv valve（3）With connecting cavity（22）Connection；
The air pipeline is by being opened in cylinder head cover（1）On first exhaust passage（11）Be opened in cylinder cap（6）On second
Exhaust passage（61）It forms, the first exhaust passage（11）With connecting cavity（22）Connection, the second exhaust passage（61）With
First exhaust passage（11）, inlet manifold（5）Connection.
2. crankcase ventilation system according to claim 1, it is characterised in that：The cylinder head cover（1）Close air inlet discrimination
Pipe one side has reinforcing prop（7）, the first exhaust passage（11）It is opened in reinforcing prop（7）It is interior；The second exhaust passage
（61）With first exhaust passage（11）It is corresponding, and it is opened in cylinder cap（6）Connection inlet manifold one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721523510.2U CN207437160U (en) | 2017-11-15 | 2017-11-15 | A kind of crankcase ventilation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721523510.2U CN207437160U (en) | 2017-11-15 | 2017-11-15 | A kind of crankcase ventilation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437160U true CN207437160U (en) | 2018-06-01 |
Family
ID=62289416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721523510.2U Active CN207437160U (en) | 2017-11-15 | 2017-11-15 | A kind of crankcase ventilation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437160U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746878A (en) * | 2019-10-30 | 2021-05-04 | 标致雪铁龙汽车股份有限公司 | PCV system, installation method thereof and vehicle |
-
2017
- 2017-11-15 CN CN201721523510.2U patent/CN207437160U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112746878A (en) * | 2019-10-30 | 2021-05-04 | 标致雪铁龙汽车股份有限公司 | PCV system, installation method thereof and vehicle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9835120B2 (en) | Integral purge ejector tee arrangement in a turbocompressor | |
| JPH07189718A (en) | Exhauster for supercharging internal combustion engine | |
| CN104018961B (en) | The air inlet pipeline system of a kind of engine with supercharger and air inlet bypass valve | |
| CN207437160U (en) | A kind of crankcase ventilation system | |
| US6782878B2 (en) | PCV assembly and fitting | |
| EP1591634A2 (en) | Crankcase ventilation | |
| JP6225885B2 (en) | Blowby gas recirculation system | |
| US9664078B2 (en) | PCV channel disconnect detection device and method | |
| JP2015218654A (en) | Internal combustion engine | |
| CN208885361U (en) | Crankcase ventilation structure and engine | |
| US9097221B2 (en) | Intake apparatus | |
| CN113775448B (en) | Air inlet pipeline used in front of supercharger | |
| CN104040122B (en) | For the chiller of valve seat | |
| JP2016135996A (en) | Freezing preventive structure for blow-by gas pipe, internal combustion engine and freezing preventive method for blow-by gas pipe | |
| CN106640443B (en) | Can water conservancy diversion crankcase ventilation gas inlet manifold | |
| CN215292728U (en) | Anti-icing structure of curved pipe | |
| US10900858B2 (en) | Method and device for leak testing an internal combustion engine | |
| CN114412654A (en) | Integrated engine valve chamber cover cap and car of design | |
| CN207194993U (en) | The multi-functional resonator of gas handling system | |
| US10662836B2 (en) | Integrated heater and pressure sensor for PCV system | |
| WO2020179806A1 (en) | Blow-by gas treatment device for internal combustion engine | |
| CN204225956U (en) | A kind of structure preventing crankcase ventilation system dynamic ice | |
| CN215633224U (en) | Air return pipeline arrangement of closed crankcase ventilation system of engine | |
| NO20180737A1 (en) | Internal Combustion Engine | |
| CN214092006U (en) | Internal integrated engine crankcase ventilation device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |