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CN112459885A - System for post-treating accumulated carbon particles of automobile diesel engine - Google Patents

System for post-treating accumulated carbon particles of automobile diesel engine Download PDF

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Publication number
CN112459885A
CN112459885A CN202011565468.7A CN202011565468A CN112459885A CN 112459885 A CN112459885 A CN 112459885A CN 202011565468 A CN202011565468 A CN 202011565468A CN 112459885 A CN112459885 A CN 112459885A
Authority
CN
China
Prior art keywords
nozzle
mixed gas
accumulated carbon
scr
carbon particle
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
Application number
CN202011565468.7A
Other languages
Chinese (zh)
Inventor
秦轩辕
金狮
王桂群
李永亮
许庆超
朱成辉
赵建波
乔敏
宋广瑞
孔刘伟
吴春雷
张宇飞
刘强
李妍江
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhengzhou Nissan Automobile Co Ltd
Original Assignee
Zhengzhou Nissan Automobile Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhengzhou Nissan Automobile Co Ltd filed Critical Zhengzhou Nissan Automobile Co Ltd
Priority to CN202011565468.7A priority Critical patent/CN112459885A/en
Publication of CN112459885A publication Critical patent/CN112459885A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00 having two or more separate purifying devices arranged in series
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1805—Fixing exhaust manifolds, exhaust pipes or pipe sections to each other, to engine or to vehicle body
    • F01N13/1827—Sealings specially adapted for exhaust systems
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
    • F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
    • F01N3/023—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles
    • F01N3/025—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust
    • F01N3/0253—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters using means for regenerating the filters, e.g. by burning trapped particles using fuel burner or by adding fuel to exhaust adding fuel to exhaust gases
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F01N3/24—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust characterised by constructional aspects of converting apparatus
    • F01N3/28—Construction of catalytic reactors
    • F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N9/00—Electrical control of exhaust gas treating apparatus
    • F01N9/002—Electrical control of exhaust gas treating apparatus of filter regeneration, e.g. detection of clogging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
    • F01N2240/18—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being an adsorber or absorber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/14—Arrangements for the supply of substances, e.g. conduits
    • F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • 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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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Exhaust Gas After Treatment (AREA)
  • Processes For Solid Components From Exhaust (AREA)

Abstract

The invention discloses a post-treatment accumulated carbon particle system of an automobile diesel engine, which comprises a DOC I + SCR I, a SCR II, a mixed gas connecting pipe, a DOC II and a DPF which are sequentially connected in series; and a through hole for installing a nozzle is formed in the side wall of the mixed gas connecting pipe close to the SCR II, and a gas mixing device is arranged in the mixed gas connecting pipe at the rear part of the nozzle. The invention has the advantages that the improved post-treatment accumulated carbon particle system can greatly improve the conversion efficiency of Nox and has lower cost; the whole vehicle is convenient to arrange, and the difficult problems that the chassis of the N1 vehicle is compact in structure and the hydrocarbon injection system is not easy to arrange can be fully solved. The invention changes the fuel injection from in-cylinder injection to out-cylinder injection in the DPF temperature rise stage, can completely eliminate the adverse effect of engine oil dilution caused by the post-injection fuel, and the gas mixing device arranged in the mixed gas connecting pipe at the rear part of the nozzle can fully mix the exhaust gas and the mixed gas of the fuel, thereby achieving good atomization effect and full combustion.

Description

System for post-treating accumulated carbon particles of automobile diesel engine
Technical Field
The invention relates to automobile manufacturing, in particular to an automobile diesel engine post-treatment accumulated carbon particle system.
Background
In order to solve the problem of DPF regeneration temperature during DPF (diesel particulate filter) regeneration, the current six-system diesel engine adopts post-injection of fuel in an engine cylinder to realize temperature rise (temperature rise of DPF) and combustion (burning of accumulated carbon particles of DPF).
The principle of the technical route is as follows: DPF adsorbed carbon particle accumulates to a certain extent, and ECU spouts behind the sprayer according to satisfying DPF regeneration condition under the engine operating condition (temperature, DPF entry temperature, speed of a motor vehicle, carbon loading capacity etc.), makes partial fuel can not fully burn in the combustion chamber, and the gas mixture of insufficient combustion can get into the DPF burning through exhaust pipe, promotes DPF carrier temperature to a certain extent (about 600 ℃), thereby burns DPF accumulation carbon particle.
The disadvantages of this method are as follows: along with the reciprocating motion of piston, part gas mixture can get into the crankcase and then fuse into in the machine oil in the fuel oil gas mixture in the combustion chamber, can cause the machine oil to dilute for a long time, influences the lubricating property of machine oil, influences engine parts cooling and lubrication, causes the machine oil liquid level to rise even, and the engine produces the machine oil phenomenon of burning out, causes emission deterioration, on the other hand such as engine blue smoke.
Disclosure of Invention
The invention aims to provide a system for post-treating accumulated carbon particles of an automobile diesel engine, which can fundamentally solve the problem of engine oil dilution.
In order to achieve the purpose, the invention can adopt the following technical scheme:
the invention relates to an automobile diesel engine post-treatment accumulated carbon particle system, which comprises a DOC I + SCR I, an SCR II, a mixed gas connecting pipe, a DOC II and a DPF which are sequentially connected in series; and a through hole for installing a nozzle is formed in the side wall of the mixed gas connecting pipe close to the SCR II, and a gas mixing device is arranged in the mixed gas connecting pipe at the rear part of the nozzle.
The gas mixing device comprises spiral guide pieces which are welded on the inner side of the pipe wall along the circumferential direction in a balanced manner.
And the spiral guide piece is provided with a guide groove.
The mixed gas connecting pipe is composed of a front pipe connected with the SCR II and a rear pipe connected with the DOC II, the front pipe and the rear pipe are connected in a sealing mode through a connecting flange, and the nozzle is installed on the front pipe.
The rear end part of the front pipe extends into the rear pipe, namely the front pipe is sleeved into the rear pipe after the diameter of the front pipe is reduced (the reduction amount is about 3.5 mm), and the leakage of mixed gas can be effectively avoided.
The connecting flange is a pair of spherical flanges, and a spherical sealing gasket is arranged between the pair of spherical flanges.
The nozzle is an HC nozzle.
The invention has the advantages that the improved post-treatment accumulated carbon particle system can greatly improve the conversion efficiency of Nox and has lower cost; the whole vehicle is convenient to arrange, and the difficult problems that the chassis of the N1 vehicle is compact in structure and the hydrocarbon injection system is not easy to arrange can be fully solved (the straight line section at the position of the hydrocarbon nozzle needs to meet the requirement of three pipe diameters).
Specifically, the fuel injection is changed from in-cylinder injection to out-cylinder injection in the temperature rising stage of the DPF, so that the adverse effect of engine oil dilution caused by the post-injection fuel can be completely eliminated, and the gas mixing device arranged in the gas mixing connecting pipe at the rear part of the nozzle can fully mix the exhaust gas and the mixed gas of the fuel (the actually measured mixed gas concentration before the DPFF can reach 1300 ppm), so that the good atomization effect is achieved and the fuel is fully combusted.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a partial sectional view of fig. 1.
Fig. 3 is an enlarged view of the structure of the nozzle of fig. 1.
Detailed Description
First, the nomenclature used in this application is explained:
1. DOC, diesel oxidation catalyst. Generally, metal or ceramic is used as a catalyst carrier, when diesel engine tail gas passes through the catalyst, hydrocarbon, carbon monoxide and the like can quickly carry out chemical reaction with oxygen in the tail gas at a low temperature to produce pollution-free H2O and CO2。
2. SCR, selective catalytic reduction. The main reason is that urea is used as a reducing agent, and nitrogen oxides in the tail gas are reduced into nitrogen and water under the reducing action of a selective catalyst.
3. DPF, diesel particulate filter. When the diesel particulate filter is installed in an exhaust system, particulate matters in exhaust gas can be filtered and captured through the DPF, particulate matter emission in the exhaust gas is reduced, and the filtering effect can reach 70-90%.
The invention will be described in more detail below with reference to the accompanying drawings so as to facilitate understanding for those skilled in the art.
As shown in figure 1, the aftertreatment accumulated carbon particle system of the automobile diesel engine comprises a DOC I + SCR I, an SCR II, a mixed gas connecting pipe, a DOC II and a DPF which are sequentially connected in series; a through hole for installing the nozzle 1 is formed in the side wall of the mixed gas connecting pipe close to the SCR II, and a gas mixing device is arranged in the mixed gas connecting pipe at the rear part of the nozzle 1. The invention changes fuel injection into injection outside the cylinder through the nozzle 1, the nozzle 1 can realize good injection and atomization under the oil pressure of 480Kpa-700KPa, the adverse effect of engine oil dilution caused by post-injection fuel can be completely eliminated, the gas mixing device arranged at the rear part of the nozzle 1 can fully mix the mixed gas of exhaust gas and fuel, the concentration of the mixed gas can reach 1300ppm, and the good atomization effect is achieved to fully burn the mixed gas.
The mixed gas connecting pipe consists of a front pipe 2.1 connected with an SCR II and a rear pipe 2.2 connected with a DOC II, wherein a nozzle 1 is arranged on the front pipe 2.1, the front pipe 2.1 and the rear pipe 2.2 are hermetically connected through a pair of spherical flanges 3, and a spherical sealing gasket 4 is arranged between the pair of spherical flanges 3.
The rear end part of the front pipe 2.1 of the mixed gas connecting pipe extends into the rear pipe 2.2 for a certain length (about 45 mm), namely the front pipe is sleeved in the rear pipe for a certain distance after the diameter of the front pipe is reduced (the reduction amount is about 3.5 mm), so that the gas flow direction can be effectively improved, and the phenomenon of mixed gas leakage caused by gathering of fuel oil on the joint surface of the connecting flange can be effectively avoided.
In actual manufacturing, the connecting flange can be a spherical flange or a common plane flange, and the sealing requirement is met.
In order to reduce the production cost and ensure the sufficient and uniform mixing of oil and gas, the gas mixing device of the invention adopts the spiral guide vanes 5 which are evenly welded on the inner side of the pipe wall along the circumferential direction, as shown in figure 2, and each spiral guide vane 5 is provided with a flow guide groove, so that the surfaces of the spiral guide vanes form convex and concave surfaces. When the gas burner works, fuel oil and exhaust gas can be fully mixed for combustion, and the concentration of the mixed gas after combustion can reach 1400 ppm.
The fuel nozzle 1 used by the invention can adopt an HC1 nozzle, can realize good injection and atomization under 480Kpa-700KPa oil pressure, and has the main functions of injecting oil according to the temperature change inside the DPF caused by the change of the vehicle running working condition during the regeneration of the DPF and the ECU control parameters in time, so as to improve the temperature inside the DPF to ensure the good regeneration of the DPF. The main components of the nozzle 1 are shown in fig. 3, and comprise a valve seat 1.1, a valve core 1.2, a valve body 1.3 and a spring 1.4, wherein the valve seat 1.1 and the valve core 1.2 are welded together, and good atomization pressure can be realized by adjusting the assembly distance between the valve seat 1.1 and the valve body 1.3, so that good spraying and atomization capabilities in a wide pressure range are met; and the valve core 1.2 and the valve body 1.3 are in line contact to ensure that the nozzle has good sealing performance when closed.
When the post-treatment accumulated carbon particle system works, firstly, according to the running working condition of an engine, an ECU identifies the accumulated carbon amount of a DPF through three models of differential pressure, primary emission and mileage; when the accumulated carbon amount of the DPF reaches a certain degree, the ECU judges whether the nozzle needs to inject oil or not according to parameters such as vehicle speed, load, water temperature, DOC inlet temperature, DPF temperature and the like; when the ECU identifies that the nozzle needs to spray oil, the ECU drives the nozzle module to spray oil; the gas mixed with fuel oil is fully mixed under the action of the gas mixing device through the gas mixture connecting pipe to form fuel oil mixed gas with the concentration of about 2000ppm, and the fuel oil mixed gas is combusted through the DOC under the condition that the DOC inlet temperature reaches 280 ℃, so that the temperature of the DPF carrier is raised to about 600 ℃, and the DPF burns accumulated carbon particles within a certain temperature range.

Claims (7)

1. An automobile diesel engine aftertreatment accumulated carbon particle system is characterized in that: the device comprises a DOC I + SCR I, an SCR II, a mixed gas connecting pipe, a DOC II and a DPF which are sequentially connected in series; and a through hole for installing a nozzle is formed in the side wall of the mixed gas connecting pipe close to the SCR II, and a gas mixing device is arranged in the mixed gas connecting pipe at the rear part of the nozzle.
2. The automotive diesel aftertreatment accumulated carbon particle system of claim 1, wherein: the gas mixing device comprises spiral guide pieces which are welded on the inner side of the pipe wall along the circumferential direction in a balanced manner.
3. The automotive diesel aftertreatment accumulated carbon particle system of claim 1, wherein: and the spiral guide piece is provided with a guide groove.
4. The automotive diesel aftertreatment accumulated carbon particle system of claim 1, wherein: the mixed gas connecting pipe is composed of a front pipe connected with the SCR II and a rear pipe connected with the DOC II, the front pipe and the rear pipe are connected in a sealing mode through a connecting flange, and the nozzle is installed on the front pipe.
5. The automotive diesel aftertreatment accumulated carbon particle system of claim 4, wherein:
the rear end of the front tube extends into the rear tube.
6. The automotive diesel aftertreatment accumulated carbon particle system of claim 4, wherein: the connecting flange is a pair of spherical flanges, and a spherical sealing gasket is arranged between the pair of spherical flanges.
7. The automotive diesel aftertreatment accumulated carbon particle system of claim 1, wherein: the nozzle is an HC nozzle.
CN202011565468.7A 2020-12-25 2020-12-25 System for post-treating accumulated carbon particles of automobile diesel engine Pending CN112459885A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202011565468.7A CN112459885A (en) 2020-12-25 2020-12-25 System for post-treating accumulated carbon particles of automobile diesel engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202011565468.7A CN112459885A (en) 2020-12-25 2020-12-25 System for post-treating accumulated carbon particles of automobile diesel engine

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Publication Number Publication Date
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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002364338A (en) * 2001-05-25 2002-12-18 Johnson Matthey Japan Inc Method and device for removing particulate matter in exhaust gas discharged from internal combustion engine
US20030209011A1 (en) * 2002-02-25 2003-11-13 Frank Duvinage Exhaust-gas purification system for an internal combustion engine
CN101395348A (en) * 2006-03-03 2009-03-25 戴姆勒股份公司 Exhaust gas aftertreatment system and exhaust gas cleaning method
CN106593605A (en) * 2016-12-26 2017-04-26 重庆小康工业集团股份有限公司 Exhaust pipe provided with mixer
US20170314437A1 (en) * 2016-04-29 2017-11-02 Hyundai Motor Company Exhaust system
CN109339908A (en) * 2018-09-27 2019-02-15 潍柴动力股份有限公司 A kind of exhaust treatment system and method
CN209990524U (en) * 2019-06-06 2020-01-24 平原滤清器有限公司 Diesel engine tail gas rotational flow mixing purification device
CN214464500U (en) * 2020-12-25 2021-10-22 郑州日产汽车有限公司 System for post-treating accumulated carbon particles of automobile diesel engine

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002364338A (en) * 2001-05-25 2002-12-18 Johnson Matthey Japan Inc Method and device for removing particulate matter in exhaust gas discharged from internal combustion engine
US20030209011A1 (en) * 2002-02-25 2003-11-13 Frank Duvinage Exhaust-gas purification system for an internal combustion engine
CN101395348A (en) * 2006-03-03 2009-03-25 戴姆勒股份公司 Exhaust gas aftertreatment system and exhaust gas cleaning method
US20170314437A1 (en) * 2016-04-29 2017-11-02 Hyundai Motor Company Exhaust system
CN106593605A (en) * 2016-12-26 2017-04-26 重庆小康工业集团股份有限公司 Exhaust pipe provided with mixer
CN109339908A (en) * 2018-09-27 2019-02-15 潍柴动力股份有限公司 A kind of exhaust treatment system and method
CN209990524U (en) * 2019-06-06 2020-01-24 平原滤清器有限公司 Diesel engine tail gas rotational flow mixing purification device
CN214464500U (en) * 2020-12-25 2021-10-22 郑州日产汽车有限公司 System for post-treating accumulated carbon particles of automobile diesel engine

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