CN203742841U - ERG system of engine - Google Patents
ERG system of engine Download PDFInfo
- Publication number
- CN203742841U CN203742841U CN201420087616.2U CN201420087616U CN203742841U CN 203742841 U CN203742841 U CN 203742841U CN 201420087616 U CN201420087616 U CN 201420087616U CN 203742841 U CN203742841 U CN 203742841U
- Authority
- CN
- China
- Prior art keywords
- egr
- cooler
- electronic throttle
- engine
- exhaust gas
- 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 - Lifetime
Links
- 239000002699 waste material Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 35
- 239000002912 waste gas Substances 0.000 description 8
- 238000001914 filtration Methods 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000001627 detrimental effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
Landscapes
- Exhaust-Gas Circulating Devices (AREA)
Abstract
The utility model discloses an ERG system of an engine. The ERG system of the engine comprises a turbine, a gas compressor, an EGR cooler and an EGR valve. The EGR cooler and the EGR valve are arranged on a pipeline between an exhaust pipe and a gas inlet pipe of the engine. The turbine is arranged on the exhaust pipe, and the gas compressor is arranged on the gas inlet pipe. The EGR system of the engine further comprises an electronic throttle valve, the electronic throttle valve is installed on the gas inlet pipe before the gas compressor, the communicating position of the gas inlet pipe and a pipeline provided with the EGR cooler and the EGR valve is located between the electronic throttle valve and the gas compressor. The pressure of the rear of the throttle valve body is adjusted through the electronic throttle valve, so that the front and back pressure difference of the EGR valve is reached, it is guaranteed that exhaust gas is introduced, and the required EGR rate is reached. The electronic throttle valve works only when the EGR rate cannot be achieved by depending on the EGR valve, the electronic throttle valve is totally open when not working, and therefore the inflating efficiency is not influenced basically, and the working stability is good.
Description
Technical field
The utility model relates to technical field of engines, especially relates to a kind of engine EGR system.
Background technique
Engine EGR (EGR) system can effectively reduce the content of oxynitrides in exhaust (NOX) and reduce fuel consumption, EGR technology is divided into internal EGR and outside EGR, along with Abgasgesetz and the energy-conservation requirement of increasingly stringent, the employing of outside EGR is also more and more extensive.
But adopt outside EGR to have a series of deficiency: the easy carbon deposit of egr system of motor, produce EGR and lead error, seriously can cause egr system to lose efficacy; The little load of part there will be suction pressure to be greater than exhaust pressure, cannot introduce waste gas, is difficult to reach target EGR and leads, egr system poor work stability; Cooler for recycled exhaust gas volume is larger, affects engine arrangement.
Model utility content
For prior art deficiency, technical problem to be solved in the utility model is to provide a kind of low pressure outer egr system, to reach the object that improves engine EGR system works stability.
In order to solve the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of engine EGR system, comprise turbo machine, gas compressor, cooler for recycled exhaust gas, EGR valve, described cooler for recycled exhaust gas, EGR valve is located on the pipeline between waste pipe and suction tude, described turbo machine is located on outlet pipe, described gas compressor is located in suction tude, also comprise electronic throttle, described electronic throttle is arranged in the suction tude before gas compressor, the pipeline that is provided with cooler for recycled exhaust gas and EGR valve is connected position between electronic throttle and gas compressor with suction tude.
Further, the pipeline that is provided with cooler for recycled exhaust gas and EGR valve described in the position that is connected with outlet pipe is positioned on outlet pipe after ternary catalyzing unit.
The position of described electronic throttle in suction tude is positioned in suction tude after air filter.
Described cooler for recycled exhaust gas adopts fin cooler.
On the described pipeline that is provided with cooler for recycled exhaust gas and EGR valve, between ternary catalyzing unit and cooler for recycled exhaust gas, be provided with filtration pad.
The utility model compared with prior art, has the following advantages:
The electronic throttle of this system only leads work cannot rely on EGR valve to realize time at EGR, in the time not working in full-gear, to suction tude without throttling action, therefore on charging efficiency substantially without affecting, good operating stability; Cooler for recycled exhaust gas adopts fin cooler, and good cooling results is favourable to reducing cooler for recycled exhaust gas volume, is convenient to arrange; Waste gas is introduced from ternary catalyzing unit, more again filters by filtering pad, reduces carbon deposit, and waste gas is down to minimum to the detrimental effect of egr system and gas compressor.
Brief description of the drawings
Below the mark in the each width accompanying drawing of this specification expressed content and figure is briefly described:
Fig. 1 is the utility model egr system schematic diagram.
Fig. 2 is the utility model cooler for recycled exhaust gas structural representation.
In figure: 1. intake manifold, 2. closure, 3. intercooler, 4. suction tude, 5. air filter, 6. electronic throttle, 7. gas compressor, 8. gas exhaust manifold, 9. turbo machine, 10. ternary catalyzing unit, 11. filters pads, 12.EGR cooler, 13.EGR valve, 121.EGR cooler casing, 122.EGR cooler core.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, embodiment of the present utility model is described in further detail.
As depicted in figs. 1 and 2, this engine EGR system, comprise turbo machine 9, gas compressor 7, cooler for recycled exhaust gas 12, EGR valve 13, electronic throttle 6 and filter pad 11, wherein, turbo machine 9 is located on the outlet pipe after the gas exhaust manifold 8 of motor, gas compressor 7 is located in the suction tude 4 before engine intake manifold 1, is provided with intercooler 3 and closure 2 in suction tude 4 between gas compressor 7 and intake manifold 1, and turbo machine 9 and gas compressor 7 are with rotating shaft setting.
Ternary catalyzing unit 10 is located on the outlet pipe after turbo machine 9, and electronic throttle 6 is located in suction tude 4, and the position of electronic throttle 6 in suction tude 4 is between gas compressor 7 and air filter 5.
Suction tude between gas compressor 7 and electronic throttle 6 is connected by pipeline with the outlet pipe after ternary catalyzing unit 10, on this pipeline, series connection is provided with and filters pad 11, cooler for recycled exhaust gas 12, EGR valve 13 successively, filter pad 11 near outlet pipe setting, EGR valve 13 arranges near suction tude 4.
Waste gas is introduced from ternary catalyzing unit, and waste gas is through processing, and the filtration again of in addition filtering pad, reduces carbon distribution, and waste gas is down to minimum to the detrimental effect of egr system and gas compressor.
Wherein, electronic throttle 6 comprises sensor, final controlling element, ECU, stepper motor and valve body, ECU transmission of control signals is to final controlling element, carry out controlling opening of valve size by control step motor, pressure after adjusting throttle valve body, to reach required EGR valve front and back pressure reduction, ensure to introduce waste gas, reach required EGR and lead.Electronic throttle only leads work cannot rely on EGR valve to realize time at EGR, in the time not working in full-gear, to suction tude without throttling action, therefore on charging efficiency substantially without affecting.
Electronic throttle 6 positions are apart between gas compressor 20cm～30cm, and distance causes too greatly EGR bad response.
EGR valve 13 comprises sensor, final controlling element, ECU, stepper motor and valve body, and ECU transmission of control signals, to final controlling element, carrys out controlling opening of valve size by control step motor, reaches target EGR and leads.EGR valve in the time not working in normally off.
Filter in pad 11 and be integrated with filter screen, the particulate in waste gas, soot are filtered again, reduce the possibility of cooler for recycled exhaust gas and gas compressor carbon deposit, increase the service life, filter pad and have convertibility, periodic replacement, ensures to reach good filtering effect.
Cooler for recycled exhaust gas 12 adopts fin cooler, comprises cooler for recycled exhaust gas housing 121, cooler for recycled exhaust gas core 122, intake pipe and outlet pipe, and cooler adopts and sticks up slice structure, and good heat dissipation effect, is conducive to reduce cooler volume, is convenient to arrange.Cooler for recycled exhaust gas is in the time arranging, cavitation erosion will, lower than outlet pipe, in case produce bubble, be caused in intake pipe position.
By reference to the accompanying drawings the utility model is exemplarily described above; obviously the utility model specific implementation is not subject to the restrictions described above; as long as adopted the improvement of the various unsubstantialities that design of the present utility model and technological scheme carry out; or without improving, design of the present utility model and technological scheme are directly applied to other occasion, all within protection domain of the present utility model.
Claims (5)
1. an engine EGR system, comprise turbo machine (9), gas compressor (7), cooler for recycled exhaust gas (12), EGR valve (13), described cooler for recycled exhaust gas (12) and EGR valve (13) are located on the pipeline between waste pipe and suction tude (4), described turbo machine (9) is located on outlet pipe, described gas compressor (7) is located in suction tude (4), it is characterized in that: also comprise electronic throttle (6), described electronic throttle (6) is arranged in the front suction tude (4) of gas compressor (7), the pipeline that is provided with cooler for recycled exhaust gas (12) and EGR valve (13) is connected position between electronic throttle (6) and gas compressor (7) with suction tude (4).
2. engine EGR system as claimed in claim 1, is characterized in that: described in be provided with cooler for recycled exhaust gas (12) and EGR valve (13) the pipeline position that is connected with outlet pipe be positioned at ternary catalyzing unit on outlet pipe (10) afterwards.
3. engine EGR system as claimed in claim 1, is characterized in that: the position of described electronic throttle (6) in suction tude (4) is positioned at air filter in suction tude (5) afterwards.
4. engine EGR system as claimed in claim 1, is characterized in that: described cooler for recycled exhaust gas (12) adopts fin cooler.
5. engine EGR system as claimed in claim 2, is characterized in that: described in be provided with on the pipeline of cooler for recycled exhaust gas (12) and EGR valve (13) and between ternary catalyzing unit (10) and cooler for recycled exhaust gas (12), be provided with and filter pad (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087616.2U CN203742841U (en) | 2014-02-27 | 2014-02-27 | ERG system of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420087616.2U CN203742841U (en) | 2014-02-27 | 2014-02-27 | ERG system of engine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203742841U true CN203742841U (en) | 2014-07-30 |
Family
ID=51342651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420087616.2U Expired - Lifetime CN203742841U (en) | 2014-02-27 | 2014-02-27 | ERG system of engine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203742841U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653352A (en) * | 2014-12-29 | 2015-05-27 | 潍柴动力股份有限公司 | System and method for exhaust gas recirculation |
| CN105443290A (en) * | 2015-12-30 | 2016-03-30 | 无锡开普机械有限公司 | Oil sprayer assembly used for electronic injection digital generator set |
| CN106523199A (en) * | 2016-12-26 | 2017-03-22 | 重庆小康工业集团股份有限公司 | Cold-end valve EGR system |
| CN106523200A (en) * | 2016-12-26 | 2017-03-22 | 重庆小康工业集团股份有限公司 | Exhaust gas recirculation system |
| CN106677931A (en) * | 2016-12-16 | 2017-05-17 | 浙江吉利控股集团有限公司 | EGR system applied to engine and engine |
| CN112412671A (en) * | 2020-12-04 | 2021-02-26 | 天津特瑞捷动力科技有限公司 | An EGR sealing gasket with filtering function and its application |
-
2014
- 2014-02-27 CN CN201420087616.2U patent/CN203742841U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653352A (en) * | 2014-12-29 | 2015-05-27 | 潍柴动力股份有限公司 | System and method for exhaust gas recirculation |
| CN105443290A (en) * | 2015-12-30 | 2016-03-30 | 无锡开普机械有限公司 | Oil sprayer assembly used for electronic injection digital generator set |
| CN106677931A (en) * | 2016-12-16 | 2017-05-17 | 浙江吉利控股集团有限公司 | EGR system applied to engine and engine |
| CN106523199A (en) * | 2016-12-26 | 2017-03-22 | 重庆小康工业集团股份有限公司 | Cold-end valve EGR system |
| CN106523200A (en) * | 2016-12-26 | 2017-03-22 | 重庆小康工业集团股份有限公司 | Exhaust gas recirculation system |
| CN112412671A (en) * | 2020-12-04 | 2021-02-26 | 天津特瑞捷动力科技有限公司 | An EGR sealing gasket with filtering function and its application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140730 |