CN205370693U - Binary channels tail gas throttle diesel engine DPF oil spout regenerating unit - Google Patents
Binary channels tail gas throttle diesel engine DPF oil spout regenerating unit Download PDFInfo
- Publication number
- CN205370693U CN205370693U CN201520936594.7U CN201520936594U CN205370693U CN 205370693 U CN205370693 U CN 205370693U CN 201520936594 U CN201520936594 U CN 201520936594U CN 205370693 U CN205370693 U CN 205370693U
- Authority
- CN
- China
- Prior art keywords
- tail gas
- oil spout
- choke valve
- particulate filter
- dpf
- 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
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- 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
- Y02T10/40—Engine management systems
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- Processes For Solid Components From Exhaust (AREA)
Abstract
The utility model discloses a binary channels tail gas throttle diesel engine DPF oil spout regenerating unit, including the tail gas house steward, the three -way pipe, the tail gas choke valve, the combustion chamber, the sprayer, particulate filter assembly, the tail gas outlet pipe, pressure sensor, temperature sensor and the control unit, the tail gas house steward falls into two sweetgum fruit ways through the three -way pipe, every sweetgum fruit says that export passing method orchid is connected with the tail gas choke valve, then be connected to on the combustion chamber, the particulate filter assembly front end is connected with the combustion chamber, the rear end links to each other with the tail gas outlet pipe, the sprayer is installed between tail gas choke valve and particulate filter assembly on the combustion chamber, it is levied and lies in: oil spout regenerating unit comprises two the same passageways of configuration, and every passageway front end has arranged all that the tail gas choke valve is used for adjusting the tail gas flow, during oil spout regeneration, and two passageway work in turn. The utility model has the advantages of simple structure, when regeneration energy loss few and the regeneration distributive value is few.
Description
Technical field
The utility model relates to a kind of dpf regeneration device, particularly a kind of dual pathways tail gas throttling diesel engine DPF oil spout regenerating unit, belongs to purifying internal combustion engine tail gas field.
Background technology
Particulate matter is one of major pollutants in exhaust emissions of diesel engine, and being currently used for reducing the diesel particulate maximally effective device of discharge is wall-flow diesel particulate matter trap (DieselParticulateFilter is called for short DPF).Wall-flow filter bodies filters the particulate matter in tail gas by little wall surface of the hole, hole separation in filtering bodies both ends of the surface blocks, diesel engine vent gas enters from the apertured orifice of filtering bodies one end, because aperture is blocked at the other end of filtering bodies, tail gas must flow through the wall of aperture and enters adjacent aperture, adjacent aperture is all opening in the other end of filtering bodies, and tail gas enters air from this opening part, and the particulate matter in tail gas is filtered by the wall of aperture and retains in this process.Wall-flow type catcher has arresting efficiency height simultaneously, tail gas resistance is low, resistance to elevated temperatures good, mechanical strength is high, fine corrosion resistance and the good feature of thermal shock resistance, is particularly well-suited to be operated in diesel engine vent gas environment.
Along with the pressure loss increasing catcher generation of granule capturing amount is also continuously increased, cause diesel engine vent gas back pressure excessive, thus affecting power performance and the fuel economy of diesel engine, now it is necessary to DPF to be regenerated.Apply more regenerative system at present, be all carry out when driving, namely carry out in tail gas flow velocity situation faster, control system and adjust the fuel injection pulsewidth of fuel injector according to road speed, enable exhaust temperature to be maintained on particulate matter ignition point.Research shows, the amount of fuel that tail gas flow velocity sprays into when can affect regeneration, when other parameter constant, theoretical temperature rise is inversely proportional to exhaust flow, the oil spout flow of the more high needs of tail gas flow velocity is more big, then needs less oil spout flow, must control the flow velocity of tail gas during practical application when tail gas flow velocity is relatively low.
Summary of the invention
The purpose of this utility model is in that to provide a kind of dual pathways tail gas throttling diesel engine DPF oil spout regenerating unit, reduces fuel consumption during dpf regeneration.This utility model is achieved through the following technical solutions, this utility model includes: engine manifold, tee T, tail gas choke valve, combustor, fuel injector, particulate filter arrangement, offgas outlet pipe, pressure transducer, temperature sensor and control unit, engine manifold is divided into two paths through tee T, the outlet of every paths is connected with tail gas choke valve by flange, it is then attached on combustor, particulate filter arrangement front end is connected with combustor, rear end is connected with offgas outlet pipe, fuel injector is arranged between tail gas choke valve and particulate filter arrangement on combustor, it is levied and is in that: oil spout regenerating unit is configured identical passage by two and forms, each Channel front end is provided with tail gas choke valve for regulating exhaust flow, during oil spout regeneration, two passages take turns to operate.At DOC front end mounting temperature sensor and pressure transducer, for detecting the temperature and pressure of tail gas, the offgas outlet pipe of DPF rear end is installed pressure transducer.
The utility model has the advantage of simple in construction, good throttle effect, regeneration efficiency is high, and during regeneration, energy loss is few and regeneration distributive value is few.
Accompanying drawing explanation
Fig. 1 is the structural representation with dual pathways tail gas of the present utility model throttling diesel engine DPF oil spout regenerating unit.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model will be further described.
As shown in the figure, this utility model includes engine manifold 10, tee T 11, tail gas choke valve 12, combustor 15, fuel injector 16, particulate filter arrangement 19, offgas outlet pipe 21, temperature sensor 13, forefront pressure sensor 14, rear end pressure transducer 20 and ECU 22, engine manifold is divided into two paths through tee T, the outlet of every paths is connected with tail gas choke valve by flange, it is then attached on combustor, particulate filter arrangement front end is connected with combustor, rear end is connected with offgas outlet pipe, fuel injector is arranged between tail gas choke valve and particulate filter arrangement on combustor, it is levied and is in that: oil spout regenerating unit is configured identical passage by two and forms, each Channel front end is provided with tail gas choke valve for regulating exhaust flow, during oil spout regeneration, two passages take turns to operate.
Particulate filter arrangement 19 is made up of oxidizing catalytic converter (DOC) 17 and diesel particulate filter (DPF) 18.After diesel engine runs a period of time, the microgranule of particulate filter arrangement 19 trapping gets more and more, before and after wall-flow honeycomb ceramic filter, increase drops in the pressure measurement of pressure transducer institute, and feed back to ECU 22, when pressure drop exceedes the ultimate value set by this ECU, regenerative process works immediately, and now ECU sends instruction, the tail gas choke valve of another passage 30 of standard-sized sheet.And need the passage fully loaded for DPF of regeneration, tail gas choke valve 12 aperture reduces, fuel injector 16 starts to spray into fuel oil burning, exhaust temperature is greatly improved, and when the tail gas stream temperature of the arrival end making entrance DPF reaches the temperature in regeneration moment, then the microgranule being deposited in DPF is able to burning rapidly and realizes regeneration.DOC is arranged in the front end of DPF, for improving the transformation efficiency of DPF.During oil spout regeneration, when other parameter constant, theoretical temperature rise is inversely proportional to exhaust flow, and the oil spout of the more high needs of exhaust flow is many, then needs less fuel oil when exhaust flow is relatively low.
Dual pathways tail gas of the present utility model throttling diesel engine DPF oil spout regenerating unit, due to two passage alternations, namely when in a passage, DPF is fully loaded time, another port throttle is opened, exhaust flow in recovery passage is few, regeneration fuel oil amount also reduces accordingly, improves the fuel economy of regenerative system.
Claims (2)
1. a dual pathways tail gas throttling diesel engine DPF oil spout regenerating unit, including engine manifold, tee T, tail gas choke valve, combustor, fuel injector, particulate filter arrangement, offgas outlet pipe, pressure transducer, temperature sensor and control unit, engine manifold is divided into two paths through tee T, the outlet of every paths is connected with tail gas choke valve by flange, it is then attached on combustor, particulate filter arrangement front end is connected with combustor, rear end is connected with offgas outlet pipe, fuel injector is arranged between tail gas choke valve and particulate filter arrangement on combustor, it is levied and is in that: oil spout regenerating unit is configured identical passage by two and forms, each Channel front end is provided with tail gas choke valve for regulating exhaust flow, during oil spout regeneration, two passages take turns to operate.
2. a kind of dual pathways tail gas throttling diesel engine DPF oil spout regenerating unit according to claim 1, particulate filter arrangement is made up of oxidizing catalytic converter (DOC) and diesel particulate filter (DPF), DOC is arranged in the front end of DPF, for improving the transformation efficiency of DPF.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936594.7U CN205370693U (en) | 2015-11-23 | 2015-11-23 | Binary channels tail gas throttle diesel engine DPF oil spout regenerating unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520936594.7U CN205370693U (en) | 2015-11-23 | 2015-11-23 | Binary channels tail gas throttle diesel engine DPF oil spout regenerating unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205370693U true CN205370693U (en) | 2016-07-06 |
Family
ID=56261498
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520936594.7U Expired - Fee Related CN205370693U (en) | 2015-11-23 | 2015-11-23 | Binary channels tail gas throttle diesel engine DPF oil spout regenerating unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205370693U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109923293A (en) * | 2016-11-03 | 2019-06-21 | 大众汽车有限公司 | Regeneration method and equipment are carried out to particulate filter in the motor vehicle with hybrid drive |
| WO2023131348A1 (en) * | 2022-01-10 | 2023-07-13 | 潍柴动力股份有限公司 | Monitoring method and device for removal of double dpfs, and engine |
-
2015
- 2015-11-23 CN CN201520936594.7U patent/CN205370693U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109923293A (en) * | 2016-11-03 | 2019-06-21 | 大众汽车有限公司 | Regeneration method and equipment are carried out to particulate filter in the motor vehicle with hybrid drive |
| CN109923293B (en) * | 2016-11-03 | 2022-04-19 | 大众汽车有限公司 | Method and device for regenerating a particle filter in a motor vehicle having a hybrid drive |
| US11306635B2 (en) | 2016-11-03 | 2022-04-19 | Volkswagen Aktiengesellschaft | Method and device for regenerating a particulate filter in a motor vehicle with a hybrid drive |
| WO2023131348A1 (en) * | 2022-01-10 | 2023-07-13 | 潍柴动力股份有限公司 | Monitoring method and device for removal of double dpfs, and engine |
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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: 20160706 Termination date: 20161123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |