CN207437221U - A kind of cooling system for recycled exhaust gas - Google Patents
A kind of cooling system for recycled exhaust gas Download PDFInfo
- Publication number
- CN207437221U CN207437221U CN201721570140.8U CN201721570140U CN207437221U CN 207437221 U CN207437221 U CN 207437221U CN 201721570140 U CN201721570140 U CN 201721570140U CN 207437221 U CN207437221 U CN 207437221U
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- cooling
- cooling tube
- engine
- cooling system
- 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
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model provides a kind of cooling system for recycled exhaust gas, belongs to exhaust gas recirculation field.It, which solves the problems, such as that existing egr system cooling effect is excessively good, causes EGR valve stuck.This cooling system for recycled exhaust gas automobile includes engine, engine is connected with inlet manifold and exhaust manifold, cooling system for recycled exhaust gas includes cooler, the first cooling tube and the second cooling tube, one end of first cooling tube is connected with exhaust manifold, the other end is connected with the cylinder cap of engine, and one end of the second cooling tube is connected with the cylinder cap of engine, and the other end is connected with inlet manifold, second cooling tube is equipped with EGR valve and cooler, and EGR valve is located between the cylinder cap and cooler of engine.This cooling system for recycled exhaust gas, which has, makes cooling system for recycled exhaust gas that can play cooling effect to exhaust gas, also can guarantee that exhaust gas temperature after cooling is unlikely to too low the problem of causing EGR valve stuck.
Description
Technical field
The utility model belongs to exhaust gas recirculation field, is related to a kind of cooling system for recycled exhaust gas.
Background technology
Motor vehicle exhaust emission pollutant mainly has following five kinds：CH4, hydrocarbon HC, nitrogen oxides NOX, an oxidation
Carbon CO and particulate matter PM, wherein nitrogen oxides meet water and form nitric acid and nitrous acid, seriously affect health.(exhaust gas follows EGR again
Loop system) system be it is a kind of by by burn after exhaust gas be reintroduced in engine chamber, slow down burning indoor fuel gas
Combustion process, appropriate control ignition temperature, so as to reach reduce acoustical emission control systems.
Existing egr system, compressor are connected by axis with turbine, realize turbocharging, and compressor passes through inlet manifold
It is connected with engine, engine is connected by exhaust manifold with turbine, and inlet manifold is equipped with charge air cooler, exhaust manifold and cylinder
The first cooling tube is equipped between cylinder cap, the first cooling tube is equipped with cooler, and second is equipped between cylinder head and inlet manifold
Cooling tube, the second cooling tube are equipped with EGR valve.
Gas becomes exhaust gas after engine, and exhaust gas temperature is generally up to hundreds of degrees Celsius, and existing egr system flows
Through the exhaust gas before EGR valve by cooler for recycled exhaust gas and cylinder cap, exhaust gas has exhaust gas centainly by the cooling structure at cylinder cap, cylinder cap
Cooling effect, exhaust gas flowed to by dual-cooled before EGR valve, and this cooling procedure may cause cooling system for recycled exhaust gas cold twice
But hyperenergia, exhaust gas cooling temperature is too low, can cause the condensation of vapor and sulfide, when the too low exhaust gas of temperature flows to
During EGR valve, the problems such as EGR valve may being caused stuck, engine reliability and service life are affected.
The content of the invention
The purpose of this utility model is for the above-mentioned problems in the prior art, it is proposed that a kind of cooling system for recycled exhaust gas,
The technical issues of solution is how to make cooling system for recycled exhaust gas that can play cooling effect to exhaust gas, also can guarantee that exhaust gas is after cooling
Temperature is unlikely to too low and causes EGR valve stuck.
The purpose of this utility model can be realized by following technical proposal：A kind of cooling system for recycled exhaust gas, automobile include starting
Machine, the engine are connected with inlet manifold and exhaust manifold, which is characterized in that the cooling system for recycled exhaust gas includes cooler, the
One cooling tube and the second cooling tube, one end of first cooling tube are connected with exhaust manifold, the cylinder of the other end and engine
Lid is connected, and one end of second cooling tube is connected with the cylinder cap of engine, and the other end is connected with inlet manifold, and described second
Cooling tube is equipped with EGR valve and the cooler, and the EGR valve is located between the cylinder cap and cooler of engine.
The exhaust gas generated after engine combustion enters exhaust manifold, and exhaust gas temperature is generally up to hundreds of degrees Celsius,
Exhaust gas section in exhaust manifold is expelled directly out, and is partly entered by the first cooling tube in the cylinder cap of engine, engine
At cylinder cap there is cooling structure, individually cooled down by cylinder cap to exhaust gas, cooler is set compared on the first cooling tube,
The temperature that exhaust gas declines will not be too low, i.e., when exhaust gas passes through EGR valve, carbon distribution will not be formed in EGR valve, and EGR valve will not be stuck,
Service life is long, and cooler is set after EGR valve, ensures relatively low from the temperature of the exhaust gas for newly entering inlet manifold, has
Help the work by combustion of engine.
In a kind of above-mentioned cooling system for recycled exhaust gas, there is air passage in the cylinder cap, the both ends of the air passage respectively with
First cooling tube and the second cooling tube are connected, and water jacket is provided at the cylinder cap.Water jacket Cooling Water circulates, and water jacket plays cylinder cap
To the effect of cooling, cylinder cap after cooling plays the role of cooling to the exhaust gas in air passage, so as to reduce the temperature of exhaust gas.
In a kind of above-mentioned cooling system for recycled exhaust gas, the water jacket is centered around around air passage.This kind of structure, contact surface
Product is big, good cooling results.
In a kind of above-mentioned cooling system for recycled exhaust gas, the internal diameter of first cooling tube is less than the internal diameter of exhaust manifold.This kind
Structure ensures only have the exhaust gas of part to be entered from exhaust manifold in the first cooling tube.
In a kind of above-mentioned cooling system for recycled exhaust gas, the internal diameter of first cooling tube and the internal diameter of the second cooling tube are identical.
This kind of structure makes exhaust gas be flowed in the first cooling tube and the second cooling tube steadily.
In a kind of above-mentioned cooling system for recycled exhaust gas, compressor and turbine are equipped in automobile, the compressor and turbine pass through
Axis is connected, and the compressor is connected with inlet manifold, and the inlet manifold is equipped with charge air cooler.It is set in automobile equipped with turbocharging
Standby, charge air cooler plays the role of improving engine breathing efficiency.
Compared with prior art, the EGR valve of cooling system for recycled exhaust gas provided by the utility model is located at the cylinder cap of engine and cold
But between device, cooler between inlet manifold, cylinder cap and exhaust manifold not there are cooler so that cooling system for recycled exhaust gas
Cooling effect can be played to exhaust gas, also can guarantee that exhaust gas temperature after cooling is unlikely to too low and causes EGR valve carbon distribution, improve
The service life of EGR valve makes engine the operation is stable.
Description of the drawings
Fig. 1 is the schematic diagram of this cooling system for recycled exhaust gas.
In figure, 1, engine；2nd, inlet manifold；3rd, exhaust manifold；4th, cooler；5th, the first cooling tube；6th, the second cooling
Pipe；7th, cylinder cap；8th, EGR valve；9th, air passage；10th, water jacket；11st, compressor；12nd, turbine；13rd, axis；14th, charge air cooler.
Specific embodiment
It is specific embodiment of the utility model and with reference to attached drawing below, the technical solution of the utility model is made further
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, automobile includes engine 1, compressor 11 and turbine 12, engine 1 is connected with inlet manifold 2 and row
Gas manifold 3, compressor 11 and turbine 12 are connected by axis 13, and compressor 11 is connected with inlet manifold 2, and inlet manifold 2 is equipped with
Charge air cooler 14.
Cooling system for recycled exhaust gas includes cooler 4, the first cooling tube 5 and the second cooling tube 6, and the internal diameter of the first cooling tube 5 is less than
The internal diameter of the internal diameter of exhaust manifold 3, the internal diameter of the first cooling tube 5 and the second cooling tube 6 is identical.There is air passage 9 in cylinder cap 7,
Water jacket 10 is provided at cylinder cap 7, water jacket 10 is centered around around air passage 9.One end of first cooling tube 5 and 3 phase of exhaust manifold
Connection, the other end of the first cooling tube 5 are connected with one end of the air passage 9 in the cylinder cap 7 of engine 1, and the one of the second cooling tube 6
End is connected with the other end of the air passage 9 in the cylinder cap 7 of engine 1, and the other end of the second cooling tube 6 is connected with inlet manifold 2
Logical, the second cooling tube 6 is equipped with EGR valve 8 and cooler 4, and EGR valve 8 is located between the cylinder cap 7 of engine 1 and cooler 4, cold
But device 4 is between EGR valve 8 and inlet manifold 2.
In use, extraneous air enters inlet manifold 2 after the supercharging of turbine 12, after the air is by charge air cooler 14
It enters engine 1 to do work, the exhaust gas after the acting of engine 1 flow to exhaust manifold 3, and portion is from exhaust manifold 3
It is expelled directly out, portion is entered by the first cooling tube 5 in the air passage 9 of cylinder cap 7, and the coolant in water jacket 10 passes through cylinder
Lid 7 enters the exhaust gas in air passage 9 cooling, and exhaust gas after cooling after EGR valve 8 by entering back into cooler 4, cooler
4 pairs of exhaust gas are further cooled down, process twice exhaust gas after cooling re-enter into inlet manifold 2 with inlet manifold 2
In outside air mixing, be re-introduced into work by combustion in engine 1, realize the recycling of exhaust gas.
The specific embodiments described herein are merely examples of the spirit of the present invention.The utility model institute
Described specific embodiment can be done various modifications or additions or using similar by belonging to those skilled in the art
Mode substitute, but without departing from the spirit of the present application or beyond the scope of the appended claims.
Although be used more herein engine 1, inlet manifold 2, exhaust manifold 3, cooler 4, the first cooling tube 5,
The terms such as the second cooling tube 6, cylinder cap 7, EGR valve 8, air passage 9, water jacket 10, compressor 11, turbine 12, axis 13, charge air cooler 14,
But it does not preclude the possibility of using other terms.The use of these items is only for more easily describe and explain this practicality
New essence；It is contrary to the spirit of the present invention to interpret them as any one of the additional limitations.
Claims (6)
1. a kind of cooling system for recycled exhaust gas, automobile includes engine (1), and the engine (1) is connected with inlet manifold (2) and exhaust
Manifold (3), which is characterized in that the cooling system for recycled exhaust gas includes cooler (4), the first cooling tube (5) and the second cooling tube (6),
One end of first cooling tube (5) is connected with exhaust manifold (3), and the other end is connected with the cylinder cap (7) of engine (1), institute
It states one end of the second cooling tube (6) with the cylinder cap (7) of engine (1) to be connected, the other end is connected with inlet manifold (2), described
Second cooling tube (6) is equipped with EGR valve (8) and the cooler (4), and the EGR valve (8) is located at the cylinder cap (7) of engine (1)
Between cooler (4).
2. a kind of cooling system for recycled exhaust gas according to claim 1, which is characterized in that there is air passage in the cylinder cap (7)
(9), the both ends of the air passage (9) are connected respectively with the first cooling tube (5) and the second cooling tube (6), are set at the cylinder cap (7)
It is equipped with water jacket (10).
3. a kind of cooling system for recycled exhaust gas according to claim 2, which is characterized in that the water jacket (10) is centered around air passage
(9) around.
4. according to a kind of cooling system for recycled exhaust gas described in claim 1 or 2 or 3, which is characterized in that first cooling tube (5)
Internal diameter is less than the internal diameter of exhaust manifold (3).
5. according to a kind of cooling system for recycled exhaust gas described in claim 1 or 2 or 3, which is characterized in that first cooling tube (5)
The internal diameter of internal diameter and the second cooling tube (6) is identical.
6. according to a kind of cooling system for recycled exhaust gas described in claim 1 or 2 or 3, which is characterized in that be equipped with compressor in automobile
(11) it is connected with turbine (12), the compressor (11) with turbine (12) by axis (13), the compressor (11) and air inlet discrimination
It manages (2) to be connected, the inlet manifold (2) is equipped with charge air cooler (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721570140.8U CN207437221U (en) | 2017-11-22 | 2017-11-22 | A kind of cooling system for recycled exhaust gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721570140.8U CN207437221U (en) | 2017-11-22 | 2017-11-22 | A kind of cooling system for recycled exhaust gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207437221U true CN207437221U (en) | 2018-06-01 |
Family
ID=62287189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721570140.8U Expired - Fee Related CN207437221U (en) | 2017-11-22 | 2017-11-22 | A kind of cooling system for recycled exhaust gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207437221U (en) |
-
2017
- 2017-11-22 CN CN201721570140.8U patent/CN207437221U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8763394B2 (en) | System and method for operating a turbocharged system | |
| CN103775252A (en) | Intelligent cooling device of supercharged diesel engine EGR system | |
| CN106762294B (en) | A kind of method of flexible control engine combustion mode | |
| CN103696861A (en) | Dual-fuel engine exhaust gas treatment method and novel dual-fuel engine | |
| CN105257372A (en) | Multi-oxygen engine and using method thereof | |
| CN215927555U (en) | Engine cooling structure and car | |
| US20070261406A1 (en) | Systems and methods of reducing NOx emissions in internal combustion engines | |
| CN203626976U (en) | Novel dual-fuel engine | |
| US20160153337A1 (en) | Engine system having turbocharger | |
| CN207761832U (en) | A kind of egr system | |
| CN207437221U (en) | A kind of cooling system for recycled exhaust gas | |
| CN107461284B (en) | A kind of EGR control system and automobile | |
| CN208900243U (en) | A kind of engine and its air inlet system and exhaust system | |
| WO2010123411A1 (en) | Method and arrangement for recirculation of exhaust gases of a combustion engine | |
| CN103806994A (en) | Intelligent exhaust temperature raising system for supercharged diesel engine | |
| CN207554223U (en) | A kind of high-low pressure egr system | |
| CN206129453U (en) | Air inlet system for improving exhaust temperature of diesel engine | |
| CN101070767A (en) | Motor-vehicle tail-gas recirculation by-pass cooling device | |
| CN208203395U (en) | Engine charge heat management system and vehicle | |
| CN207554222U (en) | A kind of egr system | |
| CN110630413B (en) | EGR engine and control method thereof | |
| JP6375680B2 (en) | HYBRID SYSTEM, HYBRID SYSTEM VEHICLE, AND EGR METHOD FOR HYBRID SYSTEM | |
| CN207686871U (en) | The high pressure cold end egr system of engine | |
| CN208763748U (en) | A kind of gasoline direct engine with supercharger of high thermal efficiency low emission | |
| CN207554224U (en) | A kind of Hybrid EGR Systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200612 Address after: 315336 No. two, 818 Binhai New Area, Hangzhou Bay, Zhejiang, Ningbo Co-patentee after: ZHEJIANG GEELY HOLDING GROUP Co.,Ltd. Patentee after: NINGBO GEELY ROYAL ENGINE COMPONENTS Co.,Ltd. Address before: Springfield road 250000 in Shandong province Ji'nan city high tech Development Zone No. 1777 Patentee before: JI'NAN GEELY AUTO PARTS Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180601 Termination date: 20211122 |