CN108979801A - Engine exhaust post-processes mixing arrangement - Google Patents

Engine exhaust post-processes mixing arrangement Download PDF

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Publication number
CN108979801A
CN108979801A CN201810775569.3A CN201810775569A CN108979801A CN 108979801 A CN108979801 A CN 108979801A CN 201810775569 A CN201810775569 A CN 201810775569A CN 108979801 A CN108979801 A CN 108979801A
Authority
CN
China
Prior art keywords
engine exhaust
post
mixing arrangement
mixing
mixing tube
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
CN201810775569.3A
Other languages
Chinese (zh)
Inventor
李军良
王天宇
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.)
Tenneco Suzhou Emission System Co Ltd
Original Assignee
Tenneco Suzhou Emission System 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 Tenneco Suzhou Emission System Co Ltd filed Critical Tenneco Suzhou Emission System Co Ltd
Priority to CN201810775569.3A priority Critical patent/CN108979801A/en
Publication of CN108979801A publication Critical patent/CN108979801A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • F01N3/18—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 methods of operation; Control
    • F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
    • F01N3/2066—Selective catalytic reduction [SCR]
    • 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
    • F01N2610/00—Adding substances to exhaust gases
    • F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
    • 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
    • F01N2610/1486—Means to prevent the substance from freezing

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Exhaust Gas After Treatment (AREA)

Abstract

A kind of engine exhaust post-processing mixing arrangement comprising to the hybrid element that urea droplets are mixed with exhaust, the hybrid element includes mixing tube, and the mixing tube is equipped with several spinning disks.The engine exhaust post-processing mixing arrangement further includes the fine fibre element positioned at the bottom of the mixing tube, wherein the fine fibre element is passed through with for the exhaust and the urea droplets, to further increase the broken and evaporation of the urea droplets.So set, the present invention has stronger Crystallization.

Description

Engine exhaust post-processes mixing arrangement
The application be the applying date be on July 27th, 2017, application No. is 201710624153.7, entitled " start The divisional application of the application of machine exhaust aftertreatment mixing arrangement and its after-treatment device and application ".
Technical field
The present invention relates to a kind of engine exhausts to post-process mixing arrangement, belongs to engine exhaust post-processing technology field.
Background technique
It is all currently the mixing for reaching urea droplets and exhaust with mixer metal structure in the industry.In general, in mixer The structures such as middle setting porous plate, fin allow the mixer of urea droplets and metal structure to collide to keep urea droplets broken It is broken into smaller drop, to be conducive to evaporate and be pyrolyzed in metal surface.Status is the upgrading due to emission regulation, so that currently Urea injection strategy is more radical, such as begins to biggish urea injecting quantity under lower temperature, smaller extraction flow. Here exist a heat conservation relationship, one be urea droplets evaporation and be pyrolyzed required for heat, one be exhaust from Heat brought by upstream.Due to the radicalization of above-mentioned injection strategy, it is vented carried total amount of heat and urea liquid and sufficiently steams Hair, the ratio being pyrolyzed between required heat constantly reduce.The ratio of EER is to describe this heat to one inside industry Relationship between amount.In general, EER value is extremely low in the crystallization risk of 150 mixer described above.If EER is no so high, but It is if optimized by the structure to mixer, Crystallization can improve, this is also industry portion big absolutely How the R&D direction of branch company optimizes the structure design of mixer.
It please join shown in Fig. 1 and Fig. 2, perforated panel 1 ' is provided in mixer 3 '.The perforated panel 1 ' is equipped with several supply and discharges Several apertures 2 ' that gas and the mixture of urea droplets pass through.On the one hand, the urea droplets beaten on perforated panel 1 ' are conducive to reality Existing its is crushed to obtain the smaller urea droplets of volume, to be more conducive to its evaporation and pyrolysis.On the other hand, in order to guarantee aperture Plate 1 ' has enough mechanical strengths, and the material part between aperture 2 ' is unavoidable.It is appreciated that in perforated panel 1 ' The back side, the flow velocity of air-flow compare lower, local low regime M easy to form.Theoretical and experimental results prove, in the low speed A possibility that urea crystals occur in area M is very big.
Therefore, it is necessary to provide the novel solution of one kind to solve above-mentioned technical problem.
Summary of the invention
The purpose of the present invention is to provide a kind of stronger engine exhausts of Crystallization to post-process mixing arrangement.
To achieve the above object, the present invention adopts the following technical scheme: a kind of engine exhaust post-processes mixing arrangement, Including to the hybrid element that urea droplets are mixed with exhaust, the hybrid element includes mixing tube, the mixing tube Equipped with several spinning disks, the engine exhaust post-processing mixing arrangement further includes the fine fibre positioned at the bottom of the mixing tube Element, wherein the fine fibre element is passed through with for the exhaust and the urea droplets, to further increase the urine The broken and evaporation of plain drop.
Technical solution as a further improvement of that present invention, the engine exhaust post-processing mixing arrangement includes shell, The shell includes the mounting base to install urea nozzle, and the urea nozzle is to the jet atomization into the mixing tube Urea droplets.
Technical solution as a further improvement of that present invention, the hybrid element further include being socketed in the mixing tube periphery And it is located at the partition in the shell, the shell is divided into positioned at the first cavity of the side of the partition and positioned at institute The second cavity of the other side of partition is stated, the spinning disk is connected with first cavity.
Technical solution as a further improvement of that present invention, the mixing tube be additionally provided with positioned at the spinning disk top and Close to several perforation of the mounting base.
Technical solution as a further improvement of that present invention, the mixing tube are in hollow cylindrical shape, and the partition includes The horizontal part of first vertical portion, the second vertical portion and connection first vertical portion and second vertical portion, wherein described Horizontal part is equipped with the aperture passed through for the mixing tube.
Technical solution as a further improvement of that present invention, the fine fibre element are steel wool or foam metal, institute Fine fibre element is stated to be located in the mixing tube.
Technical solution as a further improvement of that present invention, the engine exhaust post-processing mixing arrangement are equipped with fixed institute State several hold-down bars of fine fibre element.
Compared to the prior art, the present invention makes urea droplets on the surface of fine fibre element by setting fine fibre element Occur adequately to be crushed and mix with inside.In addition, gap is complicated, and heat transfer area is big since the line footpath of fine fibre element is smaller, Be conducive to urea droplets and exhaust occurs relatively adequately heat exchange and improves resistive connection to be conducive to the evaporation and pyrolysis of urea droplets Brilliant ability.
Detailed description of the invention
Fig. 1 is the diagrammatic cross-section for increasing porous plate in mixing tube in the prior art.
Fig. 2 is the diagrammatic cross-section of porous plate in Fig. 1, wherein the flow direction of the mixture of the exhaust and urea droplets indicated with And the dead zone at the back side.
Fig. 3 is the stereoscopic schematic diagram of inventive engine exhaust gas post-treatment device.
Fig. 4 is the part isometric exploded view of Fig. 3.
Fig. 5 is the further stereogram exploded view of Fig. 4.
Fig. 6 is the perspective view of engine exhaust post-processing mixing arrangement in Fig. 5.
Fig. 7 is the left view of Fig. 6.
Fig. 8 is the right view of Fig. 6.
Fig. 9 is the diagrammatic cross-section of line A-A in Fig. 6.
Figure 10 is the stereogram exploded view of Fig. 6.
Figure 11 is the stereogram exploded view of another angle of Figure 10.
Figure 12 is the perspective view after the partial shell removed in Fig. 6.
Figure 13 is the stereoscopic schematic diagram of fine fibre element in Figure 10.
Specific embodiment
It please join shown in Fig. 3 to Figure 13, present invention discloses a kind of exhaust post-treatment apparatus of engine 100, are used for such as SCR The tail gas of engine is handled in equal after-treatment systems.The exhaust post-treatment apparatus of engine 100 is including after engine exhaust Mixing arrangement 10 is handled, post-processes the upstream of mixing arrangement 10 positioned at the engine exhaust and the diesel oil oxidation being sequentially connected in series is urged Change device (DOC) 20 and diesel particulate trap (DPF) 30 and positioned at engine exhaust post-processing mixing arrangement 10 The selective catalytic reducing agent (SCR) 40 in downstream.
The engine exhaust post-processing mixing arrangement 10 includes shell 1, the hybrid element 2 being installed in the shell 1 And the fine fibre element 3 to further increase urea droplets evaporation and pyrolysis.
In illustrative embodiments of the present invention, the shell 1 is cylindrical, is equipped with to 1 sunken inside of shell Mounting plate 11 and the mounting base 12 for being formed or being fixed on the shell 1.It is described in illustrative embodiments of the present invention Mounting base 12 is welded on the mounting plate 11.The hybrid element 2 is located under the mounting base 12 along flow direction of exhaust gases Trip.The mounting base 12 is to install urea nozzle (not shown), into engine exhaust post-processing mixing arrangement 10 The urea droplets of jet atomization.
The hybrid element 2 is to mix the urea droplets with exhaust.In illustrative embodiments of the present invention In, the hybrid element 2 is including mixing tube 21 and is socketed in partition mixing tube 21 periphery and be located in the shell 1 22.Urea droplets of the urea nozzle to the jet atomization into the mixing tube 21.It please join shown in Fig. 9, scheme in the present invention In the embodiment shown, the partition 22 by the shell 1 be divided into positioned at the side of the partition 22 the first cavity 110 and The second cavity 120 positioned at the other side of the partition 22.
The mixing tube 21 is in hollow tubular, be equipped with the spinning disk 211 that is connected with first cavity 110 and Top positioned at the spinning disk 211 and several perforation 212 close to the mounting base 12.In illustrative embodiments of the present invention In, the spinning disk 211 is capable of forming the mixed effect of eddy flow, to increase mixing distance, reduces the wind of urea crystals Danger.
The partition 22 include the first vertical portion 221, the second vertical portion 222 and connection first vertical portion 221 with The horizontal part 223 of second vertical portion 222, wherein the horizontal part 223 is equipped with the aperture passed through for the mixing tube 21 224。
It please join shown in Figure 13, in illustrative embodiments of the present invention, the fine fibre element 3 is steel wool or foam Metal, the fine fibre element 3 are located in the mixing tube 21.The engine exhaust post-processing mixing arrangement 10, which is equipped with, to be fixed Several hold-down bars 4 of the steel wool.Certainly in other embodiments, the fine fibre element 3 is also possible to meshy steel wire Or porous material of ceramics etc..
The present invention utilize fine fibre element 3 (such as steel wool) 3D porous structure or multiple-void structure, exhaust and The urea droplets pass through the fine fibre element 3, make urea droplets the surface of steel wool and it is internal occur it is adequately broken and Mixing.In addition, the line footpath of steel wool is smaller, gap is complicated, large specific surface area.It is interior in a limited space because of large specific surface area Bigger heat exchange area can be createed, is conducive to urea droplets and relatively adequately heat exchange occurs for exhaust, to be conducive to urea solution The evaporation and pyrolysis of drop, improve Crystallization.It can correspondingly be adjusted by the adjusting of the density to fine fibre element 3 and be The back pressure of system.
The structures such as antipriming pipe and fin in compared to the prior art, the line footpath of fine fibre element 3 of the invention is all very Small (being, for example, less than 1mm), therefore can be to avoid the appearance of leeward, to reduce urea crystals risk.It is of the invention this to open The invention of opening up property not only solves the problems, such as low regime, but also solves the problems, such as heat exchange, with substantive distinguishing features outstanding and significantly Progress.
In addition, above embodiments are merely to illustrate the present invention and not limit the technical scheme described by the invention, to this The understanding of specification should be based on person of ordinary skill in the field, although this specification is referring to the above embodiments pair Present invention has been detailed description, still, those skilled in the art should understand that, the technology of technical field Personnel still can modify or equivalently replace the present invention, and all do not depart from the technology of the spirit and scope of the present invention Scheme and its improvement should all be covered in scope of the presently claimed invention.

Claims (7)

1. a kind of engine exhaust post-processes mixing arrangement comprising to the mixing member that urea droplets are mixed with exhaust Part, the hybrid element include mixing tube, and the mixing tube is equipped with several spinning disks, it is characterised in that: the engine exhaust Post-processing mixing arrangement further include positioned at the mixing tube bottom fine fibre element, wherein the fine fibre element with for The exhaust and the urea droplets pass through, to further increase the broken and evaporation of the urea droplets.
2. engine exhaust as described in claim 1 post-processes mixing arrangement, it is characterised in that: after the engine exhaust Managing mixing arrangement includes shell, and the shell includes the mounting base to install urea nozzle, and the urea nozzle is to institute State the urea droplets of jet atomization in mixing tube.
3. engine exhaust as claimed in claim 2 post-processes mixing arrangement, it is characterised in that: the hybrid element further includes It is socketed in partition mixing tube periphery and be located in the shell, the shell is divided into positioned at the side of the partition The first cavity and the second cavity positioned at the other side of the partition, the spinning disk be connected with first cavity.
4. engine exhaust as claimed in claim 3 post-processes mixing arrangement, it is characterised in that: the mixing tube is additionally provided with position Top in the spinning disk and several perforation close to the mounting base.
5. engine exhaust as claimed in claim 3 post-processes mixing arrangement, it is characterised in that: the mixing tube is in hollow Cylindrical shape, the partition include that the first vertical portion, the second vertical portion and connection first vertical portion and described second are vertical The horizontal part in portion, wherein the horizontal part is equipped with the aperture passed through for the mixing tube.
6. engine exhaust as described in claim 1 post-processes mixing arrangement, it is characterised in that: the fine fibre element is steel Velvet or foam metal, the fine fibre element are located in the mixing tube.
7. engine exhaust as claimed in claim 6 post-processes mixing arrangement, it is characterised in that: after the engine exhaust Manage several hold-down bars that mixing arrangement is equipped with the fixed fine fibre element.
CN201810775569.3A 2017-07-27 2017-07-27 Engine exhaust post-processes mixing arrangement Pending CN108979801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810775569.3A CN108979801A (en) 2017-07-27 2017-07-27 Engine exhaust post-processes mixing arrangement

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Application Number Priority Date Filing Date Title
CN201810775569.3A CN108979801A (en) 2017-07-27 2017-07-27 Engine exhaust post-processes mixing arrangement
CN201710624153.7A CN107165704A (en) 2017-07-27 2017-07-27 Engine exhaust post-processes mixing arrangement and its after-treatment device and application

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CN201710624153.7A Pending CN107165704A (en) 2017-07-27 2017-07-27 Engine exhaust post-processes mixing arrangement and its after-treatment device and application

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110925062A (en) * 2019-12-19 2020-03-27 无锡亿利环保科技有限公司 Urea mixer and post-treatment device
WO2020143391A1 (en) * 2019-01-10 2020-07-16 天纳克（苏州）排放系统有限公司 Engine exhaust aftertreatment mixing device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108979801A (en) * 2017-07-27 2018-12-11 天纳克（苏州）排放系统有限公司 Engine exhaust post-processes mixing arrangement
CN107575287B (en) * 2017-09-19 2019-07-23 天纳克（苏州）排放系统有限公司 Exhaust aftertreatment mixing arrangement
CN110056414A (en) * 2018-01-19 2019-07-26 天纳克（苏州）排放系统有限公司 Tail-gas after treatment apparatus
CN108194179A (en) * 2018-03-14 2018-06-22 潍柴动力股份有限公司 A kind of post processing air inlet mixing arrangement
CN108625957B (en) * 2018-07-03 2021-10-22 天纳克（苏州）排放系统有限公司 Engine exhaust aftertreatment mixing device and method of making same

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201013423Y (en) * 2007-02-12 2008-01-30 潍柴动力股份有限公司 SCR post-treating pipe apparatus for high fluid rate engine
WO2010057508A1 (en) * 2008-11-21 2010-05-27 Bayerische Motoren Werke Aktiengesellschaft Equipment for mixing and/or evaporating a reducing agent and equipment for applying a reducing agent to an exhaust gas flow
US20110023461A1 (en) * 2009-07-29 2011-02-03 International Engine Intellectual Property Company, Llc Exhaust aftertreatment system with heated device
CN102278177A (en) * 2011-04-27 2011-12-14 汪家琳 Device and method for efficiently utilizing tail gas of combustion engine
CN102345488A (en) * 2011-09-14 2012-02-08 中国第一汽车股份有限公司 Mixed unit of foam metal ball pipe assembly
CN105673150A (en) * 2016-04-11 2016-06-15 天纳克（苏州）排放系统有限公司 Exhaust gas after-treatment device
CN205714359U (en) * 2016-04-21 2016-11-23 何凤英 The automatic dust separation apparatus that a kind of purifying vehicle exhaust is special
CN106246303A (en) * 2016-10-12 2016-12-21 天纳克（苏州）排放系统有限公司 Tail-gas after treatment apparatus
US20170082004A1 (en) * 2014-01-31 2017-03-23 Donaldson Company, Inc. Dosing and mixing arrangement for use in exhaust aftertreatment

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005063081A1 (en) * 2005-12-29 2007-07-05 Robert Bosch Gmbh Mounting part for e.g. diesel engine of motor vehicle, has surface evaporator arranged between dispensing module and upstream front ends of tube section in motion path of dispensed reducing agent-precursor
WO2009085641A1 (en) * 2007-12-19 2009-07-09 Acs Industries, Inc. Catalytic apparatus with up-stream wire mesh in-line mixer
DE102012014334A1 (en) * 2012-07-20 2014-05-15 Man Truck & Bus Ag Mixing device for aftertreatment of exhaust gases
SE538185C2 (en) * 2013-01-04 2016-03-29 Scania Cv Ab Muffler for an internal combustion engine
CN105089750B (en) * 2015-08-21 2018-04-06 天纳克（苏州）排放系统有限公司 exhaust gas treatment device
CN106762050A (en) * 2015-11-20 2017-05-31 罗伯特·博世有限公司 Integrated form exhaust gas aftertreatment system
CN205243598U (en) * 2015-12-18 2016-05-18 天纳克（苏州）排放系统有限公司 Processing apparatus behind engine exhaust
CN205714374U (en) * 2016-06-15 2016-11-23 天纳克（苏州）排放系统有限公司 Tail-gas after treatment apparatus
CN206987922U (en) * 2017-07-27 2018-02-09 天纳克（苏州）排放系统有限公司 Engine exhaust post-processes mixing arrangement and its after-treatment device
CN108979801A (en) * 2017-07-27 2018-12-11 天纳克（苏州）排放系统有限公司 Engine exhaust post-processes mixing arrangement

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201013423Y (en) * 2007-02-12 2008-01-30 潍柴动力股份有限公司 SCR post-treating pipe apparatus for high fluid rate engine
WO2010057508A1 (en) * 2008-11-21 2010-05-27 Bayerische Motoren Werke Aktiengesellschaft Equipment for mixing and/or evaporating a reducing agent and equipment for applying a reducing agent to an exhaust gas flow
US20110023461A1 (en) * 2009-07-29 2011-02-03 International Engine Intellectual Property Company, Llc Exhaust aftertreatment system with heated device
CN102278177A (en) * 2011-04-27 2011-12-14 汪家琳 Device and method for efficiently utilizing tail gas of combustion engine
CN102345488A (en) * 2011-09-14 2012-02-08 中国第一汽车股份有限公司 Mixed unit of foam metal ball pipe assembly
US20170082004A1 (en) * 2014-01-31 2017-03-23 Donaldson Company, Inc. Dosing and mixing arrangement for use in exhaust aftertreatment
CN105673150A (en) * 2016-04-11 2016-06-15 天纳克（苏州）排放系统有限公司 Exhaust gas after-treatment device
CN205714359U (en) * 2016-04-21 2016-11-23 何凤英 The automatic dust separation apparatus that a kind of purifying vehicle exhaust is special
CN106246303A (en) * 2016-10-12 2016-12-21 天纳克（苏州）排放系统有限公司 Tail-gas after treatment apparatus

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020143391A1 (en) * 2019-01-10 2020-07-16 天纳克（苏州）排放系统有限公司 Engine exhaust aftertreatment mixing device
CN110925062A (en) * 2019-12-19 2020-03-27 无锡亿利环保科技有限公司 Urea mixer and post-treatment device

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Application publication date: 20181211