CN106855463A - Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner - Google Patents
Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner Download PDFInfo
- Publication number
- CN106855463A CN106855463A CN201710105272.1A CN201710105272A CN106855463A CN 106855463 A CN106855463 A CN 106855463A CN 201710105272 A CN201710105272 A CN 201710105272A CN 106855463 A CN106855463 A CN 106855463A
- Authority
- CN
- China
- Prior art keywords
- air
- dilution
- diesel engine
- section
- processing 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.)
- Pending
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Exhaust Gas After Treatment (AREA)
Abstract
A kind of diesel engine post-processing system Accelarated aging test bench frame apparatus of technical field of internal combustion engines, including main air blower component, inlet air flow gauge component, combustion-chamber assembly, vortex board, dilution mixing section component, dilution air component, by-pass governing pipeline, exhaust flow-meter component, high temperature resistant EGR valve, data acquisition control system etc., this new post processing rapid aging system can improve the delivery temperature of tail gas, independent linear control NOx concentration, the extraction flow of independent control.This system accelerates the ageing time of diesel engine post-processing system, can carry out in a wide range based on concentration, temperature, flow it is separately adjustable, can carry out DOC, DPF, SCR reactor and SCRF reactor performances test.Reasonable in design, simple structure of the invention, it is adaptable to the optimization design of internal combustion engine after-treatment system Accelarated aging test stand.
Description
Technical field
The present invention relates to diesel engine post-processing system quick aging and benchmark test stand field, more particularly to
DOC, DPF, SCR reactor and SCRF reactor performances are tested, and EGR+DOC+DPF, EGR+DOC+SCR, EGR+DOC+SCR
The performance test of the integrated system apparatus such as+DPF, EGR+DOC+DPF+SCR.
Background technology
In order to meet increasingly strict Abgasgesetz, such as Diesel engine post processing environmental protecting device, diesel oxidation catalyst
DOC (HCs, CO purification in for being vented), SCR SCR reactors (NOx purifications in for being vented), diesel engine
Particle filtering DPF reactors (particulate matter PM purifications in for being vented) will be applied to motor vehicle and ship bavin as standard configuration part
The exhaust aftertreatment of oil machine.Be provided with post processing environmental protecting device diesel vehicle will be forced require it is all necessary in Life cycle
Meet corresponding Abgasgesetz, for example, the laws and regulations requirement light vehicle of state 6 in future discharge palpus in 160,000km is up to standard, and it is heavy
Vehicle is then required to discharge necessary up to standard in 700,000km.In terms of engine of boat and ship emission control, according to relevant laws and regulations
(such as Tier III of International Maritime Organization (IMO) and national environmental protection portion will issue《Engine of boat and ship tailpipe emission is limited
Value and measuring method (first and second stage)》) require, engine of boat and ship post-processes environmental protecting device in actual motion 10,000 hour
(arriving first and be defined) efficiency in 10 years after interior or installation must meet emission regulation demands.In a word, Abgasgesetz is to post processing environmental protection dress
The durability put proposes requirement very high.
Post processing environmental protecting device typically passes through catalytic reaction by hydrocarbon (HCs), the nitrogen oxides in tail gas
(NOx), carbon monoxide (CO) and particulate matter (PM) are converted into water (H2O), carbon dioxide (CO2) and nitrogen (N2).DOC、SCR
The core of the diesel engine after treatment device such as reactor and DPF is catalyst.But catalyst in the process of running can gradually aging (warm
Aging, abrasion, poisoning, cracking etc.), cause after-treatment device efficiency gradually to reduce.Therefore, diesel engine after treatment environmental protection dress is improved
The key for putting durability be improve catalyst it is aging after performance, it is ensured that its (light-duty diesel vehicle in Life cycle：240,
000 kilometer；Heavy-duty diesel vehicle：700,000 kilometers；Boat diesel engine：10,000 hours or 10 years) catalytic conversion efficiency can expire
Sufficient laws and regulations requirement.
Diesel engine for automobile after-treatment device ageing process requirement after-treatment device experiences tens of thousands of individual small on engine pedestal
When stand degradation or vehicle fleet hundreds of thousands kilometer road degradation, this need to expend huge human and material resources and
Financial resources.
The aging mainly heat ageing (weight of post processing environmental protecting device>90%).Theoretically, heat ageing speed is temperature
The function of degree.Research shows, SCR catalyst engine pedestal aging 30 at 500 DEG C, could complete within 000 hour equivalent to
700,000 kilometers of road is aging；But catalyst can be by quick heat ageing at high temperature.Experiment shows, aging 100 at 850 DEG C
Aging 30,000 hours of engine pedestal or aging 700,000 kilometers of vehicle road at hour being equivalent to 500 DEG C.But conventional bavin
Oil turbine is difficult to produce the high-temperature tail gas higher than 600 DEG C to the ageing process of accelerator activator.
Because diesel engine is difficult to produce more than 600 DEG C of high-temperature exhaust air for the accelerated ageing of after-treatment device, therefore must
Other method must be taken to produce hot environment.At present, most common method mainly has two kinds in industrial quarters：(1) stove is aging：
Catalyst is put into Muffle furnace, gas in stove cavity high temperature is heated to, as shown in Figure 1；(2) diesel engine bench is aging：
DOC is installed in after-treatment device upstream, and improves delivery temperature to produce heat in DOC injected upstreams diesel oil.
Although stove is aging quick aging is provided needed for temperature, Muffle furnace can not simulate and flow through the true of catalyst
Diesel engine vent gas.In addition, stove ageing process cannot be monitored to catalyst performance parameter, overaging is easily caused.
Diesel engine machine frame is aging to use true diesel engine vent gas, and can be urged by sensor real-time monitoring ageing process
The performance change of agent.The heat release of DOC oxidated diesel oils can be used enter improving downstream aftertreatment device although diesel engine bench is aging
Mouth exhaust temperature, but the heat release of DOC oxygenated fuel can cause aging temperature to be difficult to control to.Additionally, the noble metal coated on DOC, such as
Platinum (Pt), rhodium (Rh), palladium (Pd) etc. can be migrated to the after-treatment device in downstream at high temperature, cause catalyst irreversible forever
Long property poisoning.Therefore, the diesel engine bench based on fuel DOC oxidation heating is aging nor preferable quick aging method.
The content of the invention
The present invention solves the technical problem of a kind of diesel engine post-processing system quick aging of offer and performance evaluation
Test-bed device, can improve the tail gas delivery temperature of test diesel engine post-processing system, independent linear control NOx
Concentration, the wide scope extraction flow of independent control.The quick aging of diesel engine post-processing system can be carried out, is existed with test system
Emission effect in Life cycle.
The present invention is achieved through the following technical solutions, the present invention include frequency conversion main air blower, air main, fuel injector,
Vortex board, mixed combustion section, spark plug group, dilution mixing section, bellows, exhaust gas analyzer, test section, high temperature resistant EGR valve, row
Air-flow gauge, test lead, bypass pipe, two-way valve, sub-control box, dilution air, the first inlet air flow gauge, the second charge flow rate
Meter, dilution airduct, the air inlet of air main are connected with the gas outlet of frequency conversion main air blower, gas outlet and the vortex board phase of air main
Connection, the two ends of mixed combustion section are connected with vortex board, dilution mixing section respectively, dilute the air inlet and dilution air of airduct
Gas outlet be connected, the gas outlet for diluting airduct is connected with dilution mixing section, and the two ends of bellows mix with diluting respectively
Section gas outlet, test section air inlet are connected, the air inlet of test lead is connected with the gas outlet of test section, and bypass pipe enters
Gas port is connected with bellows, and the first inlet air flow gauge, fuel injector are sequentially arranged on air main, the second inlet air flow gauge arrangement
On dilution airduct, spark plug group is arranged in mixed combustion section, and exhaust gas analyzer is arranged in the rear and front end of test section
Pipeline on, high temperature resistant EGR valve, exhaust flow-meter are sequentially arranged on test lead, and two-way valve is arranged on bypass pipe, respectively
Automatically controlled device is connected by wire harness with sub-control box.
Further, present invention additionally comprises force (forcing) pump, deflector, force (forcing) pump is connected with fuel injector, and baffle arrangement exists
On dilution mixing section.
Further, in the present invention, air main carries elbow bend, and fuel injector is arranged in the elbow bend of air main
Place, fuel injector center line overlaps with mixed combustion section center line.
Further, in the present invention, in baffle arrangement in the middle part of dilution mixing section, deflector is located at master
The downstream of airduct, dilution airduct air outlet.
In sum, the present invention is provided diesel engine post-processing system quick aging and benchmark test bench frame apparatus,
By frequency conversion main air blower and dilution air for needed for diesel engine post-processing system is provided flow, by inlet air flow gauge and exhaust stream
Gauge carries out the accurate measurement of flow, by carrying out oil spout mixed combustion at pipeline center with temperature needed for providing test, passes through
Dilution is mixed to get required test concentrations, makes gas mixing uniform by air deflector.
Compared with prior art, the present invention has the advantages that：Reasonable in design, simple structure of the invention, Neng Goumo
Intend the tail gas of diesel engine, the concentration of precise control tail gas, temperature, flow can carry out diesel engine post-processing system quick aging,
Reach the requirement to permanent seal cooling test.
Brief description of the drawings
Fig. 1 is structural representation of the invention；
Wherein:1st, frequency conversion main air blower, 2, air main, 3, force (forcing) pump, 4, fuel injector, 5, vortex board, 6, mixed combustion section, 7,
Spark plug group, 8, dilution mixing section, 9, deflector, 10, bellows, 11, exhaust gas analyzer, 12, test section, 13, high temperature resistant EGR
Valve, 14, exhaust flow-meter, 15, test lead, 16, bypass pipe, 17, two-way valve, 18, sub-control box, 19, dilution air, 20,
First inlet air flow gauge, the 21, second inlet air flow gauge, 22, dilution airduct.
Specific embodiment
Embodiments of the invention are elaborated below in conjunction with the accompanying drawings, the present embodiment is with technical solution of the present invention as preceding
Carry, give detailed implementation method and specific operating process, but protection scope of the present invention is not limited to following embodiments.
Embodiment
Embodiments of the invention are as shown in figure 1, the present invention includes frequency conversion main air blower 1, air main 2, force (forcing) pump 3, fuel injector
4th, vortex board 5, mixed combustion section 6, spark plug group 7, dilution mixing section 8, deflector 9, bellows 10, exhaust gas analyzer 11, survey
It is examination section 12, high temperature resistant EGR valve 13, exhaust flow-meter 14, test lead 15, bypass pipe 16, two-way valve 17, sub-control box 18, dilute
Release blower fan 19, the first inlet air flow gauge 20, the second inlet air flow gauge 21, dilution airduct 22, air inlet and the frequency conversion master of air main 2
The gas outlet of blower fan 1 is connected, and the gas outlet of air main 2 is connected with vortex board 5, mixed combustion section 6 two ends respectively with whirlpool
Stream plate 5, dilution mixing section 8 are connected, and the air inlet for diluting airduct 22 is connected with the gas outlet of dilution air 19, dilutes airduct
22 gas outlet is connected with dilution mixing section 8, the two ends of bellows 10 respectively with dilution mixing section 8 gas outlet, test section 12
Air inlet is connected, and the air inlet of test lead 15 is connected with the gas outlet of test section 12, the air inlet and ripple of bypass pipe 16
Line pipe 10 is connected, and the first inlet air flow gauge 20, fuel injector 4 are sequentially arranged on air main 2, and the second inlet air flow gauge 21 is arranged
On dilution airduct 22, spark plug group 7 is arranged in mixed combustion section 6, and exhaust gas analyzer 11 is arranged in test section 12
On the pipeline of rear and front end, high temperature resistant EGR valve 13, exhaust flow-meter 14 are sequentially arranged on test lead 15, two-way valve 17
It is arranged on bypass pipe 16, each automatically controlled device is connected by wire harness with sub-control box 18；Force (forcing) pump 3 is connected with fuel injector 4,
Deflector 9 is arranged on dilution mixing section 8, and air main 2 carries elbow bend, and fuel injector 4 is arranged in the elbow bend of air main 2
Place, the center line of fuel injector 4 overlaps with mixed combustion 6 center lines of section.
The diesel engine post-processing system Accelarated aging test bench frame apparatus that the present invention is provided, can provide diesel engine after treatment
Temperature, flow, concentration carry out the quick aging of diesel engine post-processing system needed for system.
In test-bed device, frequency conversion main air blower 1 produces air needed for the burning of mixed combustion section 6, according to different tests
Temperature needed for 12 after-treatment system entrances of section, the air inflow of frequency conversion main air blower 1 is also different.Carried out by the frequency converter of frequency conversion fan
The coarse adjustment of flow, is measured by inlet air flow gauge 2 to the air inflow of frequency conversion main air blower 1.
Fuel injector 4 is arranged on pipe bent position, is overlapped with mixed combustion 6 center lines of section, fuel injector is sprayed by force (forcing) pump 3 is pressed
Power is pressurizeed, to improve oil atomizing effect.It is the air of the input of frequency conversion main air blower 1 after vortex board 5 is arranged on fuel injector 4
The mist of oil produced with fuel injector 4 is sufficiently mixed.Spark plug group 7 is arranged on dilution mixing section upstream, and gas mixture is lighted.It is logical
Cross the temperature that the control injection fuel-flow control of fuel injector 4 burning zone 6 produces thermal exhaust.
The air inflow of dilution air 19 is accurately measured by inlet air flow gauge 20, the diluent air that dilution air 19 is produced will
Mixed with the thermal exhaust produced in mixed combustion section 6 in dilution mixing section 8, air deflector 9 be set in dilution mixing section 8,
The diluent air that the thermal exhaust for producing burning is produced with dilution air 19 is sufficiently mixed.
Dilution mixing section 8 is connected by bellows 10 with test section 12, and the stress of system can be reduced by bellows 10
Collection neutralizes error when reducing pipeline centering.Test section 12 can place DOC, DPF, SCR reactor and SCRF reactors, and
The integrated system apparatus such as EGR+DOC+DPF, EGR+DOC+SCR, EGR+DOC+SCR+DPF, EGR+DOC+DPF+SCR.
By adjusting the air inflow of frequency conversion main air blower 1, dilution air 19, then by adjusting electric control two-way on bypass pipe 16
High temperature resistant EGR valve 13 on door 17 and test lead 15, you can control enters the uninterrupted of test section 12.
Exhaust gas analyzer 11 is respectively provided with measurement apparatus before and after the test section 12, with measure in pipeline all kinds of gas concentrations and
Front and rear change in concentration.Uninterrupted by test section 12 can be measured by exhaust flow-meter 14.
Control device measures the temperature of each measurement point, pressure by temperature sensor, pressure sensor in sub-control box 18；Together
When control device control fuel injector injection and spark plug igniting；With exhaust gas analyzer 11, frequency conversion fan 1 and dilution air 19
Communicated.Result is finally passed into computer controlled interface by netting twine.
In sum, the present invention is provided a kind of diesel engine post-processing system quick aging and benchmark test stand dress
Put, by frequency conversion main air blower and dilution air for needed for diesel engine post-processing system is provided flow, by the VFC of blower fan
Device carries out quantitative control, and accurate measurement is carried out by nearly exhaust flow-meter, by the oil spout mixing in pipeline, ignition producing
Raw high-temperature exhaust air, the flow of test section is entered by Valve controlling, by all kinds of gas concentrations in exhaust gas analyzer measurement pipeline
And front and rear change in concentration.Therefore the control that this buner system can be independent enters temperature, exhaust concentration and the stream of test section
Amount.Enter the delivery temperature of test section by improving, the quick aging of diesel engine post-processing system can be carried out.
Enter temperature, exhaust concentration, the flow of test section by controlling oil spout to light a fire and controlling, transient control can be reached
Simulated engine tail gas, and then WHSC/WHTC, ESC/ETC test loop, FTP test loops etc. can be carried out.
What the present invention was illustrated by specific implementation process, without departing from the present invention, can also be right
Example of the present invention carries out various conversion and equivalent replacement, therefore, patent of the present invention is not limited to disclosed specific implementation process, and
The whole embodiments fallen into scope of the patent claims of the present invention should be included.
Claims (4)
- A kind of 1. diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner, including frequency conversion main air blower (1), Air main (2), the air inlet of air main (2) is connected with the gas outlet of frequency conversion main air blower (1), it is characterised in that also including spray Oily device (4), vortex board (5), mixed combustion section (6), spark plug group (7), dilution mixing section (8), bellows (10), exhaust gas analysis Instrument (11), test section (12), high temperature resistant EGR valve (13), exhaust flow-meter (14), test lead (15), bypass pipe (16), two are led to Valve (17), sub-control box (18), dilution air (19), the first inlet air flow gauge (20), the second inlet air flow gauge (21), dilution wind Pipe (22), the gas outlet of air main (2) is connected with vortex board (5), the two ends of mixed combustion section (6) respectively with vortex board (5), Dilution mixing section (8) is connected, and the air inlet of dilution airduct (22) is connected with the gas outlet of dilution air (19), dilutes airduct (22) gas outlet is connected with dilution mixing section (8), the two ends of bellows (10) respectively with dilution mixing section (8) gas outlet, Test section (12) air inlet is connected, and the air inlet of test lead (15) is connected with the gas outlet of test section (12), bypass pipe (16) air inlet is connected with bellows (10), and the first inlet air flow gauge (20), fuel injector (4) are sequentially arranged in air main (2) on, the second inlet air flow gauge (21) is arranged in dilution airduct (22), and spark plug group (7) is arranged in mixed combustion section (6) On, exhaust gas analyzer (11) is arranged on the pipeline of the rear and front end of test section (12), high temperature resistant EGR valve (13), exhaust Flowmeter (14) is sequentially arranged on test lead (15), and two-way valve (17) is arranged on bypass pipe (16), each automatically controlled device It is connected with sub-control box (18) by wire harness.
- 2. diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner according to claim 1, its It is characterised by also including force (forcing) pump (3), deflector (9), force (forcing) pump (3) is connected with fuel injector (4), and deflector (9) is arranged in In dilution mixing section (8).
- 3. diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner according to claim 2, its Air main (2) is characterised by with elbow bend, fuel injector (4) is arranged at the elbow bend of air main (2), fuel injector (4) Center line overlaps with mixed combustion section (6) center line.
- 4. diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner according to claim 3, its It is characterised by that deflector (9) is arranged in the middle part of dilution mixing section (8), deflector (9) is positioned at air main (2), dilution wind Manage the downstream of (22) air outlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105272.1A CN106855463A (en) | 2017-02-26 | 2017-02-26 | Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710105272.1A CN106855463A (en) | 2017-02-26 | 2017-02-26 | Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106855463A true CN106855463A (en) | 2017-06-16 |
Family
ID=59125039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710105272.1A Pending CN106855463A (en) | 2017-02-26 | 2017-02-26 | Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106855463A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458876A (en) * | 2017-12-05 | 2018-08-28 | 潍柴动力股份有限公司 | SCR post-processes urea crystals off-line simulation pilot system |
| CN108692945A (en) * | 2018-04-18 | 2018-10-23 | 同济大学 | A kind of trap-oxidizer performance quick analysis system |
| CN110309534A (en) * | 2019-05-22 | 2019-10-08 | 同济大学 | A structure design method of diesel engine exhaust aftertreatment system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102121876A (en) * | 2010-12-17 | 2011-07-13 | 杭州银轮科技有限公司 | Test bed of postprocessing device for simulating diesel engine exhaust gas |
| CN202033195U (en) * | 2010-12-17 | 2011-11-09 | 杭州银轮科技有限公司 | Postprocessing apparatus testing stand simulating diesel engine exhaust |
| WO2012075432A1 (en) * | 2010-12-03 | 2012-06-07 | Cummins Intellectual Property, Inc. | Lean burn active ignition engine with aftertreatment system and method |
| CN206523305U (en) * | 2017-02-26 | 2017-09-26 | 上海倍绿环保科技有限公司 | Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner |
-
2017
- 2017-02-26 CN CN201710105272.1A patent/CN106855463A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012075432A1 (en) * | 2010-12-03 | 2012-06-07 | Cummins Intellectual Property, Inc. | Lean burn active ignition engine with aftertreatment system and method |
| CN102121876A (en) * | 2010-12-17 | 2011-07-13 | 杭州银轮科技有限公司 | Test bed of postprocessing device for simulating diesel engine exhaust gas |
| CN202033195U (en) * | 2010-12-17 | 2011-11-09 | 杭州银轮科技有限公司 | Postprocessing apparatus testing stand simulating diesel engine exhaust |
| CN206523305U (en) * | 2017-02-26 | 2017-09-26 | 上海倍绿环保科技有限公司 | Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner |
Non-Patent Citations (1)
| Title |
|---|
| 迟永昊;何小明;杨正林;: "三元催化转化器快速老化实验系统的设计" * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458876A (en) * | 2017-12-05 | 2018-08-28 | 潍柴动力股份有限公司 | SCR post-processes urea crystals off-line simulation pilot system |
| CN108692945A (en) * | 2018-04-18 | 2018-10-23 | 同济大学 | A kind of trap-oxidizer performance quick analysis system |
| CN110309534A (en) * | 2019-05-22 | 2019-10-08 | 同济大学 | A structure design method of diesel engine exhaust aftertreatment system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106679982A (en) | Test bed device based on diesel engine after-treatment system performance test of combustor | |
| CN101988422B (en) | Method and system for verifying the operation of an SCR catalyst | |
| CN106404402B (en) | The full-scale SCR catalyst Testing Platform of diesel engine based on tail gas simulation | |
| CN103362614B (en) | The nitrogen dioxide generation diagnostic of diesel aftertreatment system | |
| CN102095587B (en) | Simulation test bed used for engine exhaust aftertreatment device | |
| Meng et al. | Study of gas and particulate emission characteristics during the fast regeneration period of DPF | |
| CN103306790B (en) | Gas extraction system and the method being used for controlling the delivery temperature in gas extraction system | |
| US20110232362A1 (en) | Detection of exhaust filter effectiveness | |
| CN110530642B (en) | Combustor test bed and combustor-based mixer steady-state crystallization test method | |
| CN106855463A (en) | Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner | |
| US9488089B2 (en) | Method of controlling operation of an engine having both an exhaust fluid recirculation apparatus and an exhaust fluid treatment apparatus | |
| EP2971626B1 (en) | Testing catalytic efficiency of an exhaust component | |
| CN202033195U (en) | Postprocessing apparatus testing stand simulating diesel engine exhaust | |
| CN202033192U (en) | Simulation test stand for exhaust post-treatment apparatus of engine | |
| CN206638424U (en) | Diesel engine post-processing system testing stand for performance test device based on burner | |
| CN109884256A (en) | SCR catalytic box multi-section measurement system | |
| CN103216297A (en) | Exhaust system and method for controlling an exhaust system | |
| CN206523305U (en) | Diesel engine post-processing system Accelarated aging test bench frame apparatus based on burner | |
| US9084966B2 (en) | Diesel oxidation catalyst aging level determination using NOX sensor NO2 interference | |
| CN206523481U (en) | Ship SCR reactors quick aging and testing stand for performance test device | |
| Khair et al. | Portable Emissions Measurement for Retrofit Applications–The Beijing Bus Retrofit Experience | |
| CN106645551A (en) | Test bed unit for rapid aging and performance testing of SCR reactor used for ship | |
| Carberry et al. | Pre-Turbocharger Catalyst-Fast catalyst light-off evaluation | |
| CN116804388A (en) | Method for evaluating degradation coefficient of diesel engine aftertreatment device | |
| CN208255158U (en) | Low-temperature SCR catalyst test device in diesel engine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20170616 |
|
| WD01 | Invention patent application deemed withdrawn after publication |