CN107299870A - A kind of ERG with by-passing valve - Google Patents
A kind of ERG with by-passing valve Download PDFInfo
- Publication number
- CN107299870A CN107299870A CN201710420296.6A CN201710420296A CN107299870A CN 107299870 A CN107299870 A CN 107299870A CN 201710420296 A CN201710420296 A CN 201710420296A CN 107299870 A CN107299870 A CN 107299870A
- Authority
- CN
- China
- Prior art keywords
- cooler
- erg
- exhaust gas
- egr
- passing
- 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.)
- Pending
Links
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The invention discloses a kind of ERG with by-passing valve, it is desirable to provide a kind of to reduce the ERG with by-passing valve of transmitter pollutant emission.It includes exhaust inlet pipe, cooler for recycled exhaust gas pedestal, cooler for recycled exhaust gas, EGR control valve, the waste gas escape pipe being sequentially connected；The cooler for recycled exhaust gas includes outlet pipe and water inlet pipe；Its also include being installed on connect on cooler for recycled exhaust gas pedestal with exhaust inlet pipe, the bypass valve control with temperature sensor, take over the EGR by-passing valves that connects with engine charge, and connect the airway tube for bypassing valve control and EGR by-passing valves；The bypass valve control is used to open and close EGR by-passing valves.The present invention can effectively control engine in the generation of low temperature, the excessive noxious emission of slow-speed of revolution operating mode, reduce the discharge of its pollutant.
Description
Technical field
The present invention relates to engines exhaust gas recirculation technical field, recycled more particularly, to a kind of waste gas with by-passing valve
Device.
Background technology
With going from bad to worse for global environment, the continuous upgrading of Abgasgesetz, country requires more next to the emission of vehicle
It is stricter.It is known that engines exhaust gas recirculation (hereinafter referred to as EGR) technology can effectively reduce noxious emission, but Europe six
（State six）Experimental monitoring circulation with state four, state five experimental monitoring circulation great changes have taken place, be strict with low temperature, the slow-speed of revolution
Emission level.The harmful substances such as the oxynitrides not exclusively generated in the slow-speed of revolution, low-temperature space fuel combustion due to engine
More, traditional egr system does not reach the emission request of low temperature, low speed.
The content of the invention
The purpose of the present invention is intended to overcome the shortcomings of that prior art presence can be in low speed and low temperature environment there is provided one kind
The discharge capacity of lower effectively control engine nitrogen oxide, improves the ERG with by-passing valve of engine.
In order to solve the above-mentioned technical problem, the present invention is achieved by the following technical solutions：
A kind of ERG with by-passing valve, including the exhaust inlet pipe, cooler for recycled exhaust gas pedestal, the EGR that are sequentially connected are cold
But device, EGR control valve, waste gas escape pipe；The cooler for recycled exhaust gas includes outlet pipe and water inlet pipe；It is also cold including being installed on EGR
But connected on device pedestal with exhaust inlet pipe, bypass valve control with temperature sensor, take over and connect with engine charge
EGR by-passing valves, and connection bypass the airway tube of valve control and EGR by-passing valves；The bypass valve control is used to open and close EGR
By-passing valve.
Preferably, it is provided with bolt connecting hole on the cooler for recycled exhaust gas pedestal.
Preferably, one end on the cooler for recycled exhaust gas with respect to cooler for recycled exhaust gas pedestal is provided with cooler fixed support.
Preferably, exhaust inlet pipe and the waste gas escape pipe has part bellows piece.
Preferably, the outlet pipe and water inlet pipe use rubber tube.
Preferably, the airway tube uses vacuum hose.
Compared with prior art, the invention has the advantages that：
The present invention can effectively control engine to be excessively harmful in low temperature, slow-speed of revolution operating mode by the control action of by-passing valve
The generation of the generation of emission, especially oxynitrides.Not only compact conformation of the invention, is easy to assembling, realizes that engine is tight
Gather mentality of designing, and energy-conserving and environment-protective, implement that the emission request of engine state six can be met together with other technologies.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can be with
Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 is structural representation of the invention.
Fig. 2 is Fig. 1 top view.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not paid
Embodiment, belongs to the scope of protection of the invention.
ERG with by-passing valve shown in Fig. 1-2, including the exhaust inlet pipe 10, the EGR that are sequentially connected are cooled down
Device pedestal 11, cooler for recycled exhaust gas 4, EGR control valve 9, waste gas escape pipe 8；The cooler for recycled exhaust gas 4 includes outlet pipe 5 and water inlet pipe
7；Its also include being installed on cooler for recycled exhaust gas pedestal 11 connected with exhaust inlet pipe 10, the by-passing valve control with temperature sensor 6
Device 3, the EGR by-passing valves 1 connected are taken over engine charge, and connection bypasses the air guide of valve control 3 and EGR by-passing valves 1
Pipe 2；The bypass valve control 3 is used to open and close EGR by-passing valves 1.
Relative cooler for recycled exhaust gas is provided with bolt connecting hole 12, the cooler for recycled exhaust gas 4 on the cooler for recycled exhaust gas pedestal 11
One end of pedestal 11 is provided with cooler fixed support 13, is easy to the fast assembling-disassembling of cooler for recycled exhaust gas.
The exhaust inlet pipe 10 and waste gas escape pipe 8 have part bellows piece（Not shown in figure）, be easy to dismounting and
Safeguard.
The outlet pipe 5 and water inlet pipe 7 use rubber tube, are easy to dismount and safeguard.
The airway tube 2 uses vacuum hose.
The line end of the exhaust inlet pipe 10 and escape pipe 8 is welded with flange-interface, and the exhaust inlet pipe enters
Gas flange section is fixed on cylinder cap flange face, and the other end is fixed on cooler for recycled exhaust gas, and described waste gas escape pipe one end is fixed on
On cooler for recycled exhaust gas, the other end is fixed on air inlet tube, whole exhaust gas recirculation system device design stability, and space arrangement is tight
Gather, be effectively utilized external engine space.Exhaust inlet pipe 10, the pipeline medium design of waste gas escape pipe 8 have bellows piece,
It is connected at water inlet pipe 7 and outlet pipe 5 using rubber tube with other parts, such purpose of design is to make ERG
Each pipeline section each annex corresponding to engine quite flexible connection, while ensure install when convenience.
The bypass valve control 3 of the present embodiment uses the TFB type electric valve controllers of Siemens.
During installation, the exhaust inlet pipe is connected with the EGR channel that engine cylinder is covered, and waste gas is by blast pipe through on cylinder cap
EGR channel and exhaust inlet pipe introduce cooler for recycled exhaust gas, and the waste gas after cooling enters waste gas escape pipe by EGR control valve, described
Waste gas escape pipe is connected to engine charge adapter.EGR control valve is controlled under Different Work Condition of Engine by valve opening size
System enters the exhausted air quantity of air intake duct, engine is obtained the best compromise of various performances under different operating modes, so as to realize reduction
The target of oxynitrides growing amount.A part for cooling water introduces the water inlet pipe of cooler for recycled exhaust gas in cooler for engine oil
7, outlet pipe 5 of the cooling water through cooler for recycled exhaust gas, which is returned, is connected to cylinder cap front end water inlet pipe.Valve control 3 is bypassed to cool down installed in EGR
On device pedestal, and connected with exhaust inlet pipe, EGR by-passing valves are connected to by airway tube, for controlling opening for exhaust gas by-pass valve 1
Open.
Engine is in normal operation operating mode, and a part of high-temp waste gas drawn by the exhaust pipe of engine is through cylinder cap EGR channel
Enter the air flue of cooler for recycled exhaust gas 4 with exhaust inlet pipe 10.Cooler for recycled exhaust gas 4 is a heat exchanger, and water channel is connected with cooling water, high
Warm waste gas is again introduced into engine after being cooled down through cooler for recycled exhaust gas 1 by waste gas escape pipe 8 and air inlet tube etc..By reducing EGR
EGT, reduces the mixture temperature into cylinder head air inlet passage, improves density of the induced air, reduce the concentration of oxygen,
To reach the purpose of reduction oxynitride discharge.When engine is in low temperature, slow-speed of revolution operating mode, because fuel combustion is insufficient,
Contain substantial amounts of HC, CO and PM in exhaust, be now accomplished by improving the temperature in cylinder realizing the complete combustion of fuel
Burn, when engine operation is under this operating mode, waste gas is cooled down without cooler for recycled exhaust gas 4 but direct by bypassing valve control 3
Into air inlet tube until in cylinder, improving the ignition temperature in cylinder so as to reduce HC, CO and PM generation.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
God is with principle, and any modification, equivalent substitution and improvements made etc. should be included in the scope of the protection.
Claims (10)
1. a kind of ERG with by-passing valve, including exhaust inlet pipe, cooler for recycled exhaust gas pedestal, the EGR being sequentially connected
Cooler, EGR control valve, waste gas escape pipe；The cooler for recycled exhaust gas includes outlet pipe and water inlet pipe；It is characterized in that：Also include
Be installed on connected on cooler for recycled exhaust gas pedestal with exhaust inlet pipe, the bypass valve control with temperature sensor, with engine charge
The EGR by-passing valves of connection are taken over, and connection bypasses the airway tube of valve control and EGR by-passing valves；The bypass valve control
For opening and closing EGR by-passing valves.
2. the ERG with by-passing valve according to claim 1, it is characterised in that：The cooler for recycled exhaust gas pedestal
On be provided with bolt connecting hole.
3. the ERG according to claim 1 or claim 2 with by-passing valve, it is characterised in that：On the cooler for recycled exhaust gas
One end with respect to cooler for recycled exhaust gas pedestal is provided with cooler fixed support.
4. the ERG according to claim 1 or claim 2 with by-passing valve, it is characterised in that：The exhaust inlet pipe
There is part bellows piece with waste gas escape pipe.
5. the ERG with by-passing valve according to claim 3, it is characterised in that：The exhaust inlet pipe and useless
Gas escape pipe has part bellows piece.
6. the ERG according to claim 1 or claim 2 with by-passing valve, it is characterised in that：The outlet pipe and enter
Water pipe uses rubber tube.
7. the ERG with by-passing valve according to claim 3, it is characterised in that：The outlet pipe and water inlet pipe
Using rubber tube.
8. the ERG with by-passing valve according to claim 4, it is characterised in that：The outlet pipe and water inlet pipe
Using rubber tube.
9. the ERG according to claim 1 or claim 2 with by-passing valve, it is characterised in that：The airway tube is used
Vacuum hose.
10. the ERG with by-passing valve according to claim 3, it is characterised in that：The airway tube is using true
Hungry area pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710420296.6A CN107299870A (en) | 2017-06-06 | 2017-06-06 | A kind of ERG with by-passing valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710420296.6A CN107299870A (en) | 2017-06-06 | 2017-06-06 | A kind of ERG with by-passing valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107299870A true CN107299870A (en) | 2017-10-27 |
Family
ID=60135764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710420296.6A Pending CN107299870A (en) | 2017-06-06 | 2017-06-06 | A kind of ERG with by-passing valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107299870A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231337A (en) * | 1978-04-28 | 1980-11-04 | Hitachi, Ltd. | Air intake system for diesel engine |
| CN203394652U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | EGR (exhaust gas recirculation) cooler for diesel engine |
| CN203670031U (en) * | 2013-10-29 | 2014-06-25 | 上海汽车集团股份有限公司 | Bypass valve assembly and EGR cooler module using same |
| CN204921196U (en) * | 2015-08-22 | 2015-12-30 | 江铃汽车股份有限公司 | Diesel engine EGR system |
| CN205349566U (en) * | 2016-03-01 | 2016-06-29 | 广西玉柴机器股份有限公司 | Exhaust gas recycling system |
-
2017
- 2017-06-06 CN CN201710420296.6A patent/CN107299870A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4231337A (en) * | 1978-04-28 | 1980-11-04 | Hitachi, Ltd. | Air intake system for diesel engine |
| CN203394652U (en) * | 2013-07-12 | 2014-01-15 | 昆明云内动力股份有限公司 | EGR (exhaust gas recirculation) cooler for diesel engine |
| CN203670031U (en) * | 2013-10-29 | 2014-06-25 | 上海汽车集团股份有限公司 | Bypass valve assembly and EGR cooler module using same |
| CN204921196U (en) * | 2015-08-22 | 2015-12-30 | 江铃汽车股份有限公司 | Diesel engine EGR system |
| CN205349566U (en) * | 2016-03-01 | 2016-06-29 | 广西玉柴机器股份有限公司 | Exhaust gas recycling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103775252B (en) | Intelligent cooling device of supercharged diesel engine EGR system | |
| CN206530418U (en) | EGR valve and engine EGR system for engine EGR system | |
| CN109653906B (en) | Waste gas recirculation system device of gasoline supercharged engine | |
| CN105257372A (en) | Multi-oxygen engine and using method thereof | |
| CN103696861A (en) | Dual-fuel engine exhaust gas treatment method and novel dual-fuel engine | |
| KR20110014122A (en) | System using supplemental compressor for egr | |
| JP2001164999A (en) | Clogging sensing device of exhaust gas recirculation device | |
| CN203403990U (en) | Engine egr system | |
| CN205977467U (en) | Engine equipment with EGR cooling system | |
| JPH09256915A (en) | Egr device for diesel engine with intercooler | |
| CN213360212U (en) | Anti-icing structure of crankcase ventilation system, engine and vehicle | |
| CN209539472U (en) | A kind of exhaust gas recirculation device with by-passing valve | |
| CN107740739A (en) | Variable cooling EGR gas handling systems and the waste gas processing method based on it | |
| CN107299870A (en) | A kind of ERG with by-passing valve | |
| CN207437239U (en) | A kind of variable cooling EGR gas handling systems | |
| WO2010123411A1 (en) | Method and arrangement for recirculation of exhaust gases of a combustion engine | |
| JP2008063976A (en) | Exhaust gas recirculating device of engine | |
| CN206522202U (en) | A kind of ERG with by-passing valve | |
| KR101939404B1 (en) | Exhaust Gas Recirculation, and Exhaust Gas Recirculation control methods for diesel engine | |
| CN108331687A (en) | A kind of engine environment-protection oil-saving device | |
| US20150176537A1 (en) | Exhaust gas recovery apparatus of egr cooler for vehicle | |
| CN203756372U (en) | Intelligent cooling device of supercharged diesel engine EGR system | |
| CN105781809A (en) | Twin-turbo EGR system and method for ship two-stroke diesel engine | |
| CN210622877U (en) | Double-power steam turbine | |
| CN106438114A (en) | Multi-point port injection gas engine stratified combustion system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171027 |
|
| RJ01 | Rejection of invention patent application after publication |