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WO2019144600A1 - Dispositif de post-traitement des gaz d'échappement - Google Patents

Dispositif de post-traitement des gaz d'échappement Download PDF

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Publication number
WO2019144600A1
WO2019144600A1 PCT/CN2018/100373 CN2018100373W WO2019144600A1 WO 2019144600 A1 WO2019144600 A1 WO 2019144600A1 CN 2018100373 W CN2018100373 W CN 2018100373W WO 2019144600 A1 WO2019144600 A1 WO 2019144600A1
Authority
WO
WIPO (PCT)
Prior art keywords
mixing
tube
assembly
mixing chamber
exhaust
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.)
Ceased
Application number
PCT/CN2018/100373
Other languages
English (en)
Chinese (zh)
Inventor
李伟
吕春虎
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
Publication of WO2019144600A1 publication Critical patent/WO2019144600A1/fr
Anticipated expiration legal-status Critical
Ceased 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
    • F01N3/24—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
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features
    • 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
    • F01N13/009—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series
    • F01N13/0097—Exhaust or silencing apparatus characterised by constructional features having two or more separate purifying devices arranged in series the purifying devices are arranged in a single housing
    • 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
    • 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
    • F01N3/206—Adding periodically or continuously substances to exhaust gases for promoting purification, e.g. catalytic material in liquid form, NOx reducing agents
    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/12—Improving ICE efficiencies

Definitions

  • the invention relates to an exhaust gas aftertreatment device, and belongs to the technical field of engine exhaust aftertreatment.
  • the uniformity of ammonia distribution in the exhaust aftertreatment system has an important impact on the overall performance and durability of the system. If the distribution of ammonia (NH 3 ) is uneven, the nitrogen oxide (NOx) conversion efficiency is too low, and if the urea injection amount is increased in order to satisfy the discharge performance, ammonia leakage contamination is likely to occur. At the same time, the urea droplets are easily deposited when they are exposed to a wall surface having a relatively low temperature, and when the crystal is severely formed, the exhaust pipe is blocked, resulting in a decrease in engine power performance. Increasing the mixing uniformity of ammonia molecules can effectively improve the urea utilization rate and reduce the urea injection amount, thereby reducing the risk of urea crystallization.
  • SCR system selective catalytic reduction system
  • an exhaust aftertreatment device including a first post-processing component and a second post-processing component in which the first post-processing component is arranged side by side, the first post-processing
  • the assembly includes a first carrier assembly, an exhaust inlet tube on one side of the first carrier assembly, and a first mixing chamber assembly on the other side of the first carrier assembly;
  • the second aftertreatment assembly includes a second carrier assembly, an exhaust outlet tube on one side of the second carrier assembly, and a second mixing chamber assembly on the other side of the second carrier assembly, the first mixing chamber assembly and
  • the second mixing chamber assembly is located on the same side of the exhaust aftertreatment device, the first mixing chamber assembly and the second mixing chamber assembly are detachably coupled together, the first mixing chamber
  • the assembly includes a first mixing tube therein and a porous tube at least partially located within the first mixing tube, the first mixing tube further comprising a plurality of swirling fins distributed circumferentially and corresponding to the swirling fin Slotting the sheet; the second mixing
  • the exhaust gas aftertreatment device has a U shape.
  • the first mixing chamber assembly is provided with a top wall, and the top wall is provided with an injection hole for the urea nozzle to spray urea droplets into the porous tube.
  • the first mixing tube includes a tapered portion, and the swirling fin and the groove are disposed on the tapered portion; one end of the porous tube is adjacent to the injection hole .
  • the second mixing tube is provided with an arc-shaped end bowl at the bottom and for forcing the airflow to reverse.
  • the second mixing chamber assembly includes an arcuate end cap on the side and for directing airflow from the second mixing tube toward the second carrier assembly.
  • the first mixing tube extends beyond the first mixing chamber assembly, and the second mixing tube extends beyond the second mixing chamber assembly, the first mixing tube and The second mixing tube is detachably connected by a clamp.
  • the first carrier component includes a diesel oxidation catalyst and a diesel particulate trap located downstream of the diesel oxidation catalyst
  • the second carrier component includes a selective catalytic reducing agent
  • the present invention facilitates maintenance by providing a detachable first mixing cavity assembly and a second mixing cavity assembly; in addition, by providing a first mixing tube, a second mixing tube, and a porous tube, an increase is made.
  • the distance and time of urea evaporation increase the uniformity of airflow mixing and improve the resistance to crystallization.
  • Figure 1 is a schematic side view of an exhaust aftertreatment device of the present invention.
  • Figure 2 is a schematic cross-sectional view taken along line A-A of Figure 1.
  • Figure 3 is a partially exploded perspective view of the exhaust aftertreatment device of the present invention.
  • Figure 4 is a further exploded perspective view of Figure 3 with the exhaust inlet tubes separated.
  • Figure 5 is a partially exploded perspective view of the exhaust aftertreatment device of the present invention with the DPF carrier assembly separated.
  • Figure 6 is a further exploded perspective view of Figure 5.
  • Figure 7 is a further exploded perspective view of Figure 6.
  • Figure 8 is a perspective view of the exhaust gas inlet pipe of Figure 1.
  • Figure 9 is a front elevational view of Figure 8.
  • Figure 10 is a plan view of Figure 8.
  • Figure 11 is an exploded perspective view of Figure 8.
  • Figure 12 is an exploded perspective view of another angle of Figure 11;
  • Figure 13 is a perspective schematic view of another embodiment of an exhaust gas inlet tube.
  • Figure 14 is a plan view of Figure 13 .
  • Figure 15 is a front elevational view of Figure 13 .
  • the present invention discloses an exhaust aftertreatment device 300 that includes a first aftertreatment assembly 100 and a second aftertreatment assembly 200 in which the first aftertreatment assembly 100 is arranged side by side.
  • the first aftertreatment assembly 100 includes a first carrier assembly 11, an exhaust inlet tube 12 on one side of the first carrier assembly 11, and a first mixing chamber on the other side of the first carrier assembly 11.
  • Body assembly 13 The second aftertreatment assembly 200 includes a second carrier assembly 21, an exhaust outlet tube 22 on one side of the second carrier assembly 21, and a second mixing chamber on the other side of the second carrier assembly 21.
  • Body assembly 23 is provided to the first aftertreatment assembly 100 and a second aftertreatment assembly 200 in which the first aftertreatment assembly 100 is arranged side by side.
  • the first aftertreatment assembly 100 includes a first carrier assembly 11, an exhaust inlet tube 12 on one side of the first carrier assembly 11, and a first mixing chamber on the other side of the first carrier assembly 11.
  • Body assembly 13 The second aftertreatment assembly 200 includes a second carrier assembly 21, an exhaust outlet tube 22 on one side of the second carrier assembly 21, and
  • the exhaust aftertreatment device 300 is U-shaped.
  • the first mixing chamber assembly 13 and the second mixing chamber assembly 23 are located on the same side of the exhaust aftertreatment device 300.
  • the first carrier component 11 includes a diesel oxidation catalyst (DOC) and a diesel particulate trap (DPF) located downstream of the diesel oxidation catalyst, the second carrier component 21 Includes a selective catalytic reduction agent (SCR).
  • DOC diesel oxidation catalyst
  • DPF diesel particulate trap
  • the first mixing chamber assembly 13 and the second mixing chamber assembly 23 are detachably coupled for ease of maintenance.
  • the first mixing chamber assembly 13 includes a first mixing tube 131 located therein and a porous tube 132 at least partially located within the first mixing tube 131.
  • the first mixing tube 131 includes a tapered portion 133 including a plurality of swirl fins 134 distributed in the circumferential direction and a slit 135 corresponding to the swirl fins 134.
  • the first mixing chamber assembly 13 is provided with a top wall 136 provided with an injection hole 137 for a urea nozzle (not shown) to inject urea droplets into the porous tube 132.
  • a urea nozzle (not shown) to inject urea droplets into the porous tube 132.
  • One end of the porous tube 132 is adjacent to the injection hole 137.
  • the second mixing chamber assembly 23 includes a second mixing tube 231 located therein and a flap 232 located in the second mixing tube 231.
  • the flap 232 is provided with a plurality of first openings 233 for urea fracture.
  • the second mixing tube 231 is provided with a plurality of second openings 234 distributed on the peripheral wall thereof.
  • the porous tube 132 further extends into the second mixing tube 231 and is located upstream of the flap 232.
  • the second mixing tube 231 is provided with an arcuate end bowl 234 at the bottom and for forcing the air flow to reverse.
  • the second mixing chamber assembly 23 includes an arcuate end cap 235 located on the side and for directing airflow from the second mixing tube 231 toward the second carrier assembly 21.
  • the flap 232 can prevent excess urea from being directly sprayed on the end cap 235 to form crystals.
  • the first mixing tube 131 extends beyond the first mixing chamber assembly 13 and the second mixing tube 231 extends beyond the second mixing chamber assembly 23,
  • the first mixing tube 131 and the second mixing tube 231 are detachably connected by a clamp 236.
  • the exhaust gas inlet pipe 12 of the present invention is of a flat design to reduce the length of the entire exhaust gas after-treatment device 300, thereby being able to better accommodate strict installation space.
  • the exhaust gas inlet tube 12 includes a first housing portion 121, a second housing portion 122 that mates with the first housing portion 121, and a connection.
  • the first housing portion 121 includes a distal end portion 1211 and an arcuate portion 1212 extending from the distal end portion 1211.
  • the tip portion 1211 forms a portion of the intake duct.
  • the distal end portion 1211 has an arc shape.
  • the tip end portion 1211 is provided with a first edge 1213.
  • the curved portion 1212 is provided with a sensor holder 1214 for mounting a sensor.
  • the curved portion 1212 is provided with an outlet end surface 1215 located inside the first edge 1213, that is, viewed from the position shown in FIG. 9, the outlet end surface 1215 is lower than the first edge 1213 .
  • the second housing portion 122 is provided with a second edge 1221 that engages the first edge 1213.
  • the seam of the first edge 1213 and the second edge 1221 is substantially L-shaped.
  • the first edge 1213 and the second edge 1221 are welded together to form an intake duct.
  • the intake duct is provided with an inlet section M, the first carrier component 11 at least partially projecting into the region of the inlet section M.
  • the outlet end face 1215 also at least partially projects into the region of the inlet section M.
  • the intake flange 123 is at least partially sleeved outside the intake duct and secured to the intake duct.
  • the intake flange 123 includes a flange 1231 located outside the intake duct.

Landscapes

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

Abstract

Dispositif de post-traitement des gaz d'échappement (300), comprenant un premier composant de post-traitement (100) et un second composant de post-traitement (200), le premier composant de post-traitement (100) comportant un premier composant de chambre de mélange (13) et le second composant de post-traitement (200) comportant un second composant de chambre de mélange (23). Le premier composant de chambre de mélange (13) est relié de façon détachable au second composant de chambre de mélange (23) et comprend un premier tube de mélange (131) situé à l'intérieur de celui-ci et un tube poreux (132) au moins partiellement situé dans le premier tube de mélange (131). Le second composant de chambre de mélange (23) comprend un second tube de mélange (231) situé à l'intérieur de celui-ci et un volet (232) situé dans le second tube de mélange (231); et le tube poreux (132) s'étend en outre dans le second tube de mélange (231) et est situé en amont du volet (232). Le dispositif facilite la maintenance, augmente la distance et le temps d'évaporation d'urée, améliore l'uniformité du mélange de flux d'air, et améliore la capacité d'anti-cristallisation.
PCT/CN2018/100373 2018-01-26 2018-08-14 Dispositif de post-traitement des gaz d'échappement Ceased WO2019144600A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810078200.7A CN110080862A (zh) 2018-01-26 2018-01-26 排气后处理装置
CN201810078200.7 2018-01-26

Publications (1)

Publication Number Publication Date
WO2019144600A1 true WO2019144600A1 (fr) 2019-08-01

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WO (1) WO2019144600A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210404367A1 (en) * 2020-06-29 2021-12-30 Faurecia Emissions Control Technologies, Usa, Llc Vehicle exhaust system with end cap mixer
EP4039949A1 (fr) * 2021-02-08 2022-08-10 Purem GmbH Module de traitement des gaz d'échappement pour un syst?me d'échappement des gaz d'un moteur à combustion interne
EP4112895A1 (fr) * 2021-07-01 2023-01-04 Donaldson Company, Inc. Dispositif de traitement des gaz d'échappement
US20230061888A1 (en) * 2021-08-26 2023-03-02 Faurecia Emission Control Technologies (Shanghai) Co., Ltd Mixer, Exhaust Aftertreatment Component, Exhaust Aftertreatment System and Vehicle
GB2621882A (en) * 2022-08-26 2024-02-28 Perkins Engines Co Ltd End can for an exhaust aftertreatment assembly with RF antennas

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CN110671173A (zh) * 2019-09-29 2020-01-10 潍柴动力股份有限公司 一种发动机后处理系统及其scr混合器
CN111188675A (zh) * 2020-03-24 2020-05-22 天纳克（苏州）排放系统有限公司 柴油机尾气后处理装置
CN111365107A (zh) * 2020-04-23 2020-07-03 天纳克（苏州）排放系统有限公司 尾气后处理封装
CN112452173A (zh) * 2020-12-03 2021-03-09 浙江银轮机械股份有限公司 混合器及尾气处理系统
CN119266979A (zh) * 2024-10-08 2025-01-07 无锡威孚力达催化净化器有限责任公司 Sdpf紧耦合尿素混合装置

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CN207989115U (zh) * 2018-01-26 2018-10-19 天纳克（苏州）排放系统有限公司 排气后处理装置

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Publication number Priority date Publication date Assignee Title
EP1691045B1 (fr) * 2005-01-17 2008-07-23 J. Eberspächer GmbH & Co. KG Système de purification des gaz d'échappement
US20100186381A1 (en) * 2009-01-26 2010-07-29 Caterpillar Inc Exhaust system thermal enclosure
CN105392972A (zh) * 2013-04-11 2016-03-09 珀金斯发动机有限公司 排放净化模块
CN106460367A (zh) * 2014-06-09 2017-02-22 沃尔沃建造设备有限公司 工程车辆
CN107255043A (zh) * 2017-07-27 2017-10-17 天纳克（苏州）排放系统有限公司 发动机排气后处理封装及应用
CN207989115U (zh) * 2018-01-26 2018-10-19 天纳克（苏州）排放系统有限公司 排气后处理装置

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210404367A1 (en) * 2020-06-29 2021-12-30 Faurecia Emissions Control Technologies, Usa, Llc Vehicle exhaust system with end cap mixer
US20240200482A1 (en) * 2020-06-29 2024-06-20 Cummins Emission Solutions Inc. Vehicle exhaust system with end cap mixer
EP4039949A1 (fr) * 2021-02-08 2022-08-10 Purem GmbH Module de traitement des gaz d'échappement pour un syst?me d'échappement des gaz d'un moteur à combustion interne
US11828217B2 (en) 2021-02-08 2023-11-28 Purem GmbH Exhaust gas treatment assembly for an exhaust gas system of an internal combustion engine
EP4112895A1 (fr) * 2021-07-01 2023-01-04 Donaldson Company, Inc. Dispositif de traitement des gaz d'échappement
US20230061888A1 (en) * 2021-08-26 2023-03-02 Faurecia Emission Control Technologies (Shanghai) Co., Ltd Mixer, Exhaust Aftertreatment Component, Exhaust Aftertreatment System and Vehicle
US11725563B2 (en) * 2021-08-26 2023-08-15 Faurecia Emission Control Technologies (Shanghai) Co., Ltd Mixer, exhaust aftertreatment component, exhaust aftertreatment system and vehicle
GB2621882A (en) * 2022-08-26 2024-02-28 Perkins Engines Co Ltd End can for an exhaust aftertreatment assembly with RF antennas
GB2621882B (en) * 2022-08-26 2024-09-25 Perkins Engines Co Ltd End can for an exhaust aftertreatment assembly with RF antennas

Also Published As

Publication number Publication date
CN110080862A (zh) 2019-08-02
CN120139999A (zh) 2025-06-13

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