WO2019144600A1 - Exhaust after-treatment device - Google Patents

Exhaust after-treatment device Download PDF

Info

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
Application number
PCT/CN2018/100373
Other languages
French (fr)
Chinese (zh)
Inventor
李伟
吕春虎
Original Assignee
天纳克（苏州）排放***有限公司
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 天纳克（苏州）排放***有限公司 filed Critical 天纳克（苏州）排放***有限公司
Publication of WO2019144600A1 publication Critical patent/WO2019144600A1/en

Links

Images

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
    • 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
    • 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
    • F01N13/0097—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 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 ; Methods of operation or control of catalytic converters
    • 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
    • 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
    • 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

An exhaust after-treatment device (300), comprising a first after-treatment component (100) and a second after-treatment component (200), the first after-treatment component (100) comprises a first mixing chamber component (13), the second after-treatment component (200) comprises a second mixing chamber component (23). The first mixing chamber component (13) is detachably connected to the second mixing chamber component (23), the first mixing chamber component (13) comprises a first mixing tube (131) located therein and a porous tube (132) at least partly located in the first mixing tube (131); the second mixing chamber component (23) comprises a second mixing tube (231) located therein and a flap (232) located in the second mixing tube (231); and the porous tube (132) further extends into the second mixing tube (231) and is located upstream of the flap (232). The device facilitates maintenance, increases the distance and time of urea evaporation, improves the uniformity of airflow mixing, and enhances the anti-crystallization ability.

Description

排气后处理装置Exhaust aftertreatment device
本申请要求了申请日为2018年1月26日、申请号为201810078200.7、发明名称为“排气后处理装置”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。The present application claims the priority of the Chinese Patent Application Serial No. PCT-A------------
技术领域Technical field
本发明涉及一种排气后处理装置，属于发动机排气后处理技术领域。The invention relates to an exhaust gas aftertreatment device, and belongs to the technical field of engine exhaust aftertreatment.
背景技术Background technique
研究表明排气后处理***(例如选择性催化还原***，SCR***)管路中氨分布的均匀程度对***的整体性能和耐久性能有重要的影响。如果氨气(NH 3)分布不均匀会导致氮氧化合物(NOx)转化效率过低，如果为了满足排放性能而增加尿素喷射量则易造成氨泄漏污染。同时尿素液滴在接触到温度较低的壁面时容易沉积，形成结晶严重时会堵塞排气管、导致发动机动力性能下降。提高氨气分子的混合均匀性可以有效提高尿素利用率，降低尿素喷射量从而降低尿素结晶的风险。 Studies have shown that the uniformity of ammonia distribution in the exhaust aftertreatment system (eg, selective catalytic reduction system, SCR 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.
因此，有必要提供一种能够提高氨气分子混合均匀性的排气后处理装置以解决上述技术问题。Therefore, it is necessary to provide an exhaust aftertreatment device capable of improving the mixing uniformity of ammonia molecules to solve the above technical problems.
发明内容Summary of the invention
本发明的目的在于提供一种便于维护且能够使发动机的排气与尿素液滴混合均匀的排气后处理装置。It is an object of the present invention to provide an exhaust aftertreatment device that is easy to maintain and that can uniformly mix exhaust gas of an engine with urea droplets.
为实现上述目的，本发明采用如下技术方案：一种排气后处理装置，其包括第一后处理组件以及所述第一后处理组件并排布置的第二后处理组件，所述第一后处理组件包括第一载体组件、位于所述第一载体组件的一侧的排气入口管以及位于所述第一载体组件的另一侧的第一混合腔体组件；所述第二后处理组件包括第二载体组件、位于所述第二载体组件的一侧的排气出口管以及位于所述第二载体组件的另一侧的第二混合腔体组件，所述第一混合腔体组件与所述第二混合腔体组件位于所述排气后处理装置的同一侧，所述第一混合腔体组件与所述第二混合腔体组件可拆卸地连接在一起，所述第一混合腔体组件包括位于其中的第一混合管以及至少部分位于所述第一 混合管内的多孔管，所述第一混合管还包括沿周向分布的若干旋流翅片以及对应于所述旋流翅片的开槽；所述第二混合腔体组件包括位于其中的第二混合管以及位于所述第二混合管中的挡片，所述挡片设有用于尿素破碎的若干第一开孔，所述第二混合管设有分布在其周壁上的若干第二开孔；所述多孔管进一步延伸至所述第二混合管中且位于所述挡片的上游。In order to achieve the above object, the present invention adopts the following technical solution: 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 chamber assembly includes a second mixing tube therein and a baffle in the second mixing tube, the baffle being provided with a plurality of first openings for urea fracture, The second mixing tube is provided with a plurality of second openings distributed on a peripheral wall thereof; the porous tube further extends into the second mixing tube and is located upstream of the flap.
作为本发明进一步改进的技术方案，所述排气后处理装置呈U形。As a further improved technical solution of the present invention, the exhaust gas aftertreatment device has a U shape.
作为本发明进一步改进的技术方案，所述第一混合腔体组件设有顶壁，所述顶壁设有用以供尿素喷嘴向所述多孔管中喷射尿素液滴的喷射孔。As a further improved technical solution of the present invention, 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.
作为本发明进一步改进的技术方案，所述第一混合管包括锥形部，所述旋流翅片以及开槽均设置在所述锥形部上；所述多孔管的一端靠近所述喷射孔。As a further improved technical solution of the present invention, 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 .
作为本发明进一步改进的技术方案，所述第二混合管设有位于底部且用以迫使气流反向的弧形端碗。As a further improved technical solution of the present invention, the second mixing tube is provided with an arc-shaped end bowl at the bottom and for forcing the airflow to reverse.
作为本发明进一步改进的技术方案，所述第二混合腔体组件包括位于侧面且用以将从所述第二混合管中出来的气流向所述第二载体组件导向的弧形端盖。As a further improved embodiment of the present invention, 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.
作为本发明进一步改进的技术方案，所述第一混合管延伸超出所述第一混合腔体组件，所述第二混合管延伸超出所述第二混合腔体组件，所述第一混合管与所述第二混合管通过卡箍可拆卸地进行连接。As a further improved technical solution of the present invention, 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.
作为本发明进一步改进的技术方案，所述第一载体组件包括柴油氧化催化剂以及位于所述柴油氧化催化剂的下游的柴油颗粒捕集器，所述第二载体组件包括选择性催化还原剂。As a further improved technical solution of the present invention, the first carrier component includes a diesel oxidation catalyst and a diesel particulate trap located downstream of the diesel oxidation catalyst, and the second carrier component includes a selective catalytic reducing agent.
相较于现有技术，本发明通过设置可以拆卸的第一混合腔体组件与第二混合腔体组件，便于维护；另外，通过设置第一混合管、第二混合管以及多孔管，增加了尿素蒸发的距离和时间，提高了气流混合的均匀性，提高了抗结晶能力。Compared with the prior art, 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.
附图说明DRAWINGS
图1是本发明排气后处理装置的端面示意图。BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic side view of an exhaust aftertreatment device of the present invention.
图2是图1中A-A线的剖面示意图。Figure 2 is a schematic cross-sectional view taken along line A-A of Figure 1.
图3是本发明排气后处理装置的部分立体分解图。Figure 3 is a partially exploded perspective view of the exhaust aftertreatment device of the present invention.
图4是图3进一步的立体分解图，其中排气入口管被分离出来。Figure 4 is a further exploded perspective view of Figure 3 with the exhaust inlet tubes separated.
图5是本发明排气后处理装置的部分立体分解图，其中DPF载体组件被分离出来。Figure 5 is a partially exploded perspective view of the exhaust aftertreatment device of the present invention with the DPF carrier assembly separated.
图6是图5进一步的立体分解图。Figure 6 is a further exploded perspective view of Figure 5.
图7是图6进一步的立体分解图。Figure 7 is a further exploded perspective view of Figure 6.
图8是图1中排气入口管的立体示意图。Figure 8 is a perspective view of the exhaust gas inlet pipe of Figure 1.
图9是图8的主视图。Figure 9 is a front elevational view of Figure 8.
图10是图8的俯视图。Figure 10 is a plan view of Figure 8.
图11是图8的立体分解图。Figure 11 is an exploded perspective view of Figure 8.
图12是图11另一角度的立体分解图。Figure 12 is an exploded perspective view of another angle of Figure 11;
图13是排气入口管于另一实施方式的立体示意图。Figure 13 is a perspective schematic view of another embodiment of an exhaust gas inlet tube.
图14是图13的俯视图。Figure 14 is a plan view of Figure 13 .
图15是图13的主视图。Figure 15 is a front elevational view of Figure 13 .
具体实施方式Detailed ways
请参图1至图7所示，本发明揭示了一种排气后处理装置300，其包括第一后处理组件100以及所述第一后处理组件100并排布置的第二后处理组件200。所述第一后处理组件100包括第一载体组件11、位于所述第一载体组件11的一侧的排气入口管12以及位于所述第一载体组件11的另一侧的第一混合腔体组件13。所述第二后处理组件200包括第二载体组件21、位于所述第二载体组件21的一侧的排气出口管22以及位于所述第二载体组件21的另一侧的第二混合腔体组件23。Referring to FIGS. 1 through 7, 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.
在本发明图示的实施方式中，所述排气后处理装置300呈U形。所述第一混合腔体组件13与所述第二混合腔体组件23位于所述排气后处理装置300的同一侧。In the illustrated embodiment of the invention, 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.
在本发明图示的实施方式中，所述第一载体组件11包括柴油氧化催化剂(DOC)以及位于所述柴油氧化催化剂的下游的柴油颗粒捕集器(DPF)，所述第二载体组件21包括选择性催化还原剂(SCR)。In the illustrated embodiment of the invention, 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).
所述第一混合腔体组件13与所述第二混合腔体组件23可拆卸地连接在一起，以便于维护。The first mixing chamber assembly 13 and the second mixing chamber assembly 23 are detachably coupled for ease of maintenance.
所述第一混合腔体组件13包括位于其中的第一混合管131以及至少部分位于所述第一混合管131内的多孔管132。所述第一混合管131包括锥形部133，其包括沿周向分布的若干旋流翅片134以及对应于所述旋流翅片134的开槽135。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.
所述第一混合腔体组件13设有顶壁136，所述顶壁136设有用以供尿素喷嘴(未图示)向所述多孔管132中喷射尿素液滴的喷射孔137。所述多孔管132的一端靠近所述喷射孔137。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. One end of the porous tube 132 is adjacent to the injection hole 137.
所述第二混合腔体组件23包括位于其中的第二混合管231以及位于所述第二混合管231中的挡片232。所述挡片232设有用于尿素破碎的若干第一开孔233。所述第二混合管231设有分布在其周壁上的若干第二开孔234。所述多孔管132进一步延伸至所述第二混合管231中且位于所述挡片232的上游。所述第二混合管231设有位于底部且用以迫使气流反向的弧形端碗234。所述第二混合腔体组件23包括位于侧面且用以将从所述第二混合管231中出来的气流向所述第二载体组件21导向的弧形端盖235。另外，所述挡片232能够防止过量的尿素直接喷射在端盖235上，而形成结晶。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. In addition, the flap 232 can prevent excess urea from being directly sprayed on the end cap 235 to form crystals.
在本发明图示的实施方式中，所述第一混合管131延伸超出所述第一混合腔体组件13，所述第二混合管231延伸超出所述第二混合腔体组件23，所述第一混合管131与所述第二混合管231通过卡箍236可拆卸地进行连接。In the illustrated embodiment of the invention, 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.
请参图8至图12所示，本发明的排气入口管12是一种扁平式的设计，以降低整个排气后处理装置300的长度，因此能够更好的适应严格的安装空间。Referring to Figures 8 to 12, 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.
在本发明排气入口管12的第一实施方式中，所述排气入口管12包括第一壳体部121、与所述第一壳体部121相配合的第二壳体部122以及连接所述第一壳体部121与第二壳体部122的进气法兰123。In a first embodiment of the exhaust gas inlet tube 12 of the present invention, 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 and the intake flange 123 of the second housing portion 122.
所述第一壳体部121包括末端部1211以及自所述末端部1211延伸出来的弧形部1212。所述末端部1211形成进气管道的一部分。在本发明图示的实施方式中所述末端部1211呈圆弧状。所述末端部1211设有第一边缘1213。所述弧形部1212设有用以安装传感器的传感器座1214。所述弧形部1212设有出口端面1215，所述出口端面1215位于所述第一边缘1213的内侧，即从图9所示的位置观察，所述出口端面1215低于所述第一边缘1213。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. In the illustrated embodiment of the invention, 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 .
所述第二壳体部122设有与所述第一边缘1213相接合的第二边缘1221。所述第一边缘1213与所述第二边缘1221的接缝大致呈L形。请参图9所示，在本发明图示的实施方式中，所述第一边缘1213与所述第二边缘1221焊接在一起共同形成进气管道。所述进气管道设有入口截面M，所述第一载体组件11至少部分凸入所述入口截面M的区域中。同时，所述出口端面1215也至少部分凸入所述入口截面M的区域中。如此设置，能够降低排气后处理装置300的长度。在本发明 图示的实施方式中，所述进气法兰123至少部分套接在所述进气管道的外部，并与所述进气管道固定在一起。所述进气法兰123包括位于所述进气管道外侧的法兰盘1231。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. Referring to FIG. 9, in the illustrated embodiment of the present invention, 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. At the same time, the outlet end face 1215 also at least partially projects into the region of the inlet section M. With this arrangement, the length of the exhaust aftertreatment device 300 can be reduced. In the illustrated embodiment of the invention, 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.
图13至图15揭示了本发明排气入口管12的第二实施方式中，其与第一实施方式的区别在于没有设置进气法兰123。13 to 15 disclose a second embodiment of the exhaust gas inlet pipe 12 of the present invention, which differs from the first embodiment in that the intake flange 123 is not provided.
需要说明的是，本发明中所描述的“上”、“下”、“顶部”、“底部”、“下方”等方位不应当做局限的理解，因为根据元件摆放位置的不同，这些位置关系也应当进行适应性理解。另外，以上实施例仅用于说明本发明而并非限制本发明所描述的技术方案，对本说明书的理解应该以所属技术领域的技术人员为基础。尽管本说明书参照上述的实施例对本发明已进行了详细的说明，但是，本领域的普通技术人员应当理解，所属技术领域的技术人员仍然可以对本发明进行修改或者等同替换，而一切不脱离本发明的精神和范围的技术方案及其改进，均应涵盖在本发明的权利要求范围内。It should be noted that the orientations of "upper", "lower", "top", "bottom", "below" and the like described in the present invention should not be construed as limited, because these positions are different depending on the position of the components. Relationships should also be adaptively understood. In addition, the above embodiments are only intended to illustrate the present invention and do not limit the technical solutions described in the present invention, and the understanding of the present specification should be based on those skilled in the art. Although the present invention has been described in detail with reference to the embodiments of the present invention, it will be understood by those skilled in the art that the invention may be modified or equivalently substituted without departing from the invention. The spirit and scope of the invention and its modifications are intended to be included within the scope of the appended claims.

Claims (8)

  1. 一种排气后处理装置，其包括第一后处理组件以及所述第一后处理组件并排布置的第二后处理组件，所述第一后处理组件包括第一载体组件、位于所述第一载体组件的一侧的排气入口管以及位于所述第一载体组件的另一侧的第一混合腔体组件；所述第二后处理组件包括第二载体组件、位于所述第二载体组件的一侧的排气出口管以及位于所述第二载体组件的另一侧的第二混合腔体组件，所述第一混合腔体组件与所述第二混合腔体组件位于所述排气后处理装置的同一侧，其特征在于：所述第一混合腔体组件与所述第二混合腔体组件可拆卸地连接在一起，所述第一混合腔体组件包括位于其中的第一混合管以及至少部分位于所述第一混合管内的多孔管，所述第一混合管还包括沿周向分布的若干旋流翅片以及对应于所述旋流翅片的开槽；所述第二混合腔体组件包括位于其中的第二混合管以及位于所述第二混合管中的挡片，所述挡片设有用于尿素破碎的若干第一开孔，所述第二混合管设有分布在其周壁上的若干第二开孔；所述多孔管进一步延伸至所述第二混合管中且位于所述挡片的上游。An exhaust aftertreatment device comprising a first aftertreatment component and a second aftertreatment component arranged side by side of the first aftertreatment component, the first aftertreatment component comprising a first carrier component, located at the first An exhaust inlet tube on one side of the 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, located in the second carrier assembly An exhaust outlet tube on one side 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 being located in the exhaust The same side of the aftertreatment device, wherein the first mixing cavity assembly is detachably coupled to the second mixing cavity assembly, the first mixing cavity assembly including a first mixing therein a tube and a porous tube at least partially located within the first mixing tube, the first mixing tube further comprising a plurality of swirl fins distributed circumferentially and a slot corresponding to the swirl fin; the second Mixed cavity group A second mixing tube located therein and a baffle in the second mixing tube, the baffle being provided with a plurality of first openings for urea fracture, the second mixing tube being disposed on a peripheral wall thereof a plurality of second openings; the porous tube further extending into the second mixing tube and upstream of the flap.
  2. 如权利要求1所述的排气后处理装置，其特征在于：所述排气后处理装置呈U形。The exhaust aftertreatment device according to claim 1, wherein said exhaust aftertreatment device has a U shape.
  3. 如权利要求1所述的排气后处理装置，其特征在于：所述第一混合腔体组件设有顶壁，所述顶壁设有用以供尿素喷嘴向所述多孔管中喷射尿素液滴的喷射孔。The exhaust aftertreatment device according to claim 1, wherein said first mixing chamber assembly is provided with a top wall, said top wall being provided for a urea nozzle to inject urea droplets into said porous tube Spray holes.
  4. 如权利要求3所述的排气后处理装置，其特征在于：所述第一混合管包括锥形部，所述旋流翅片以及开槽均设置在所述锥形部上；所述多孔管的一端靠近所述喷射孔。The exhaust aftertreatment device according to claim 3, wherein said first mixing tube comprises a tapered portion, said swirl fins and slots are provided on said tapered portion; said porous One end of the tube is adjacent to the injection hole.
  5. 如权利要求1所述的排气后处理装置，其特征在于：所述第二混合管设有位于底部且用以迫使气流反向的弧形端碗。The exhaust aftertreatment device of claim 1 wherein said second mixing tube is provided with an arcuate end bowl at the bottom for forcing the flow of gas to reverse.
  6. 如权利要求5所述的排气后处理装置，其特征在于：所述第二混合腔体组件包括位于侧面且用以将从所述第二混合管中出来的气流向所述第二载体组件导向的弧形端盖。The exhaust aftertreatment device of claim 5 wherein said second mixing chamber assembly includes a side surface for directing airflow from said second mixing tube toward said second carrier assembly Guided curved end caps.
  7. 如权利要求1所述的排气后处理装置，其特征在于：所述第一混合管延伸超出所述第一混合腔体组件，所述第二混合管延伸超出所述第二混合腔体组件，所述第一混合管与所述第二混合管通过卡箍可拆卸地进行连接。The exhaust aftertreatment device of claim 1 wherein said first mixing tube extends beyond said first mixing chamber assembly and said second mixing tube extends beyond said second mixing chamber assembly The first mixing tube and the second mixing tube are detachably connected by a clamp.
  8. 如权利要求1所述的排气后处理装置，其特征在于：所述第一载体组件包括柴油氧化催化剂以及位于所述柴油氧化催化剂的下游的柴油颗粒捕集器，所述第二载体组件包括选择性催化还原剂。The exhaust aftertreatment device of claim 1 wherein said first carrier assembly comprises a diesel oxidation catalyst and a diesel particulate trap downstream of said diesel oxidation catalyst, said second carrier assembly comprising Selective catalytic reducing agent.
PCT/CN2018/100373 2018-01-26 2018-08-14 Exhaust after-treatment device WO2019144600A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810078200.7 2018-01-26
CN201810078200.7A CN110080862A (en) 2018-01-26 2018-01-26 Exhaust gas post-treatment device

Publications (1)

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

Family

ID=67395756

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2018/100373 WO2019144600A1 (en) 2018-01-26 2018-08-14 Exhaust after-treatment device

Country Status (2)

Country Link
CN (1) CN110080862A (en)
WO (1) WO2019144600A1 (en)

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 (en) * 2021-02-08 2022-08-10 Purem GmbH Exhaust gas treatment module for an exhaust gas system of a combustion engine
EP4112895A1 (en) * 2021-07-01 2023-01-04 Donaldson Company, Inc. Exhaust gas treatment device
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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110671173A (en) * 2019-09-29 2020-01-10 潍柴动力股份有限公司 Engine aftertreatment system and SCR mixer thereof
CN111188675A (en) * 2020-03-24 2020-05-22 天纳克（苏州）排放***有限公司 Diesel engine tail gas after-treatment device
CN111365107A (en) * 2020-04-23 2020-07-03 天纳克（苏州）排放***有限公司 Tail gas aftertreatment encapsulation

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1691045B1 (en) * 2005-01-17 2008-07-23 J. Eberspächer GmbH & Co. KG Exhaust gas purification system
US20100186381A1 (en) * 2009-01-26 2010-07-29 Caterpillar Inc Exhaust system thermal enclosure
CN105392972A (en) * 2013-04-11 2016-03-09 珀金斯发动机有限公司 Emissions cleaning module
CN106460367A (en) * 2014-06-09 2017-02-22 沃尔沃建造设备有限公司 Construction vehicle
CN107255043A (en) * 2017-07-27 2017-10-17 天纳克（苏州）排放***有限公司 Engine exhaust post processing encapsulation and application
CN207989115U (en) * 2018-01-26 2018-10-19 天纳克（苏州）排放***有限公司 Exhaust gas post-treatment device

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1691045B1 (en) * 2005-01-17 2008-07-23 J. Eberspächer GmbH & Co. KG Exhaust gas purification system
US20100186381A1 (en) * 2009-01-26 2010-07-29 Caterpillar Inc Exhaust system thermal enclosure
CN105392972A (en) * 2013-04-11 2016-03-09 珀金斯发动机有限公司 Emissions cleaning module
CN106460367A (en) * 2014-06-09 2017-02-22 沃尔沃建造设备有限公司 Construction vehicle
CN107255043A (en) * 2017-07-27 2017-10-17 天纳克（苏州）排放***有限公司 Engine exhaust post processing encapsulation and application
CN207989115U (en) * 2018-01-26 2018-10-19 天纳克（苏州）排放***有限公司 Exhaust gas post-treatment device

Cited By (7)

* 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 (en) * 2021-02-08 2022-08-10 Purem GmbH Exhaust gas treatment module for an exhaust gas system of a combustion engine
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 (en) * 2021-07-01 2023-01-04 Donaldson Company, Inc. Exhaust gas treatment device
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

Also Published As

Publication number Publication date
CN110080862A (en) 2019-08-02

Similar Documents

Publication Publication Date Title
WO2019144600A1 (en) Exhaust after-treatment device
US11486290B2 (en) Exhaust gas after-treatment mixing device
WO2018153162A1 (en) Tail gas post-treatment apparatus
US10704448B2 (en) Exhaust gas after-treatment mixing device and package therefor
WO2018068667A1 (en) Tail gas after-treatment device
WO2018006718A1 (en) Tail gas aftertreatment device
WO2019144602A1 (en) Exhaust aftertreatment device
WO2017215458A1 (en) Exhaust gas postprocessing apparatus
WO2018095140A1 (en) Exhaust post-treatment device
BR112015019613B1 (en) DOSAGE AND MIXING ARRANGEMENT FOR USE IN DISCHARGE POST-TREATMENT
CN207989115U (en) Exhaust gas post-treatment device
WO2018149053A1 (en) Exhaust gas post-treatment apparatus
CN207989116U (en) Exhaust gas post-treatment device
WO2018006719A1 (en) Tail gas post-treatment device
WO2018095141A1 (en) Exhaust aftertreatment device
WO2017215461A1 (en) Exhaust aftertreatment apparatus
CN107869376B (en) Mixing assembly
WO2017215460A1 (en) Mixing apparatus for exhaust gas postprocessing
CN207989121U (en) Exhaust inlet pipe and its exhaust gas post-treatment device
WO2021223360A1 (en) Tail gas aftertreatment mixing device and tail gas aftertreatment device
WO2018006720A1 (en) Mixing module
WO2019140865A1 (en) Exhaust gas aftertreatment device
WO2019128164A1 (en) Mixing device for exhaust post-processing, and package therefor
WO2019144599A1 (en) Exhaust inlet pipe and exhaust post-treatment apparatus thereof
WO2017215459A1 (en) Exhaust gas post-processing mixing apparatus

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 18902613

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 18902613

Country of ref document: EP

Kind code of ref document: A1