CN110056417B - Exhaust aftertreatment device for box-type engine - Google Patents
Exhaust aftertreatment device for box-type engine Download PDFInfo
- Publication number
- CN110056417B CN110056417B CN201810054841.9A CN201810054841A CN110056417B CN 110056417 B CN110056417 B CN 110056417B CN 201810054841 A CN201810054841 A CN 201810054841A CN 110056417 B CN110056417 B CN 110056417B
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- Prior art keywords
- baffle
- assembly
- aftertreatment
- cavity
- space
- Prior art date
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Links
- 238000002156 mixing Methods 0.000 claims abstract description 29
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 20
- 239000004202 carbamide Substances 0.000 claims abstract description 20
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 239000003054 catalyst Substances 0.000 claims description 7
- 238000010531 catalytic reduction reaction Methods 0.000 claims description 7
- 230000003647 oxidation Effects 0.000 claims description 7
- 238000007254 oxidation reaction Methods 0.000 claims description 7
- 230000000712 assembly Effects 0.000 claims description 6
- 238000000429 assembly Methods 0.000 claims description 6
- 239000003795 chemical substances by application Substances 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000007788 liquid Substances 0.000 claims description 2
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 1
- 238000002425 crystallisation Methods 0.000 abstract description 3
- 230000008025 crystallization Effects 0.000 abstract description 3
- 230000000694 effects Effects 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 11
- 239000000203 mixture Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
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
- F01N3/24—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
- F01N2240/00—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being
- F01N2240/20—Combination or association of two or more different exhaust treating devices, or of at least one such device with an auxiliary device, not covered by indexing codes F01N2230/00 or F01N2250/00, one of the devices being a flow director or deflector
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/02—Tubes being perforated
-
- 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
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
A box type engine exhaust aftertreatment device comprises a shell, a plurality of aftertreatment components and a cavity component. The housing includes a first end cap, a first baffle, a second end cap, and a shell. A first space is formed between the first end cap and the first baffle, and the housing includes an exhaust inlet pipe passing through the first end cap into the first space. The exhaust inlet pipe is provided with a plurality of exhaust holes communicated with the first space on the peripheral wall thereof. The cavity assembly includes a mixing tube including an inner cavity, a plurality of fins circumferentially distributed around a periphery of the inner cavity, a plurality of slots corresponding to the plurality of fins and in communication with the inner cavity, and a porous tube in the mixing tube. Compared with the prior art, the invention enhances the crushing of urea and the heat exchange effect between the urea and the wall surface by arranging the porous pipe, thereby reducing the risk of urea crystallization.
Description
Technical Field
The invention relates to a box type engine exhaust aftertreatment device.
Background
A case type engine exhaust gas aftertreatment device (e.g., a diesel exhaust gas aftertreatment device) is mainly a device for treating or evolving toxic and harmful substances in exhaust gas. The toxic substances in the exhaust gas mainly comprise hydrocarbon, carbon monoxide, nitrogen oxides, particulate matters and the like.
The prior art has seen the use of a combination of a Diesel Oxidation Catalyst (DOC), a diesel particulate trap (DPF) and a Selective Catalytic Reduction (SCR) to improve the efficiency of the exhaust gas treatment. In one aspect, the oxidation-type catalytic converter and the particle trap are disposed in series within a first housing, and a first cavity in communication with the first housing is additionally provided; the selective catalytic reduction agent is arranged in the second shell, and a second cavity communicated with the second shell is additionally arranged; the first and second chambers are then connected in series by means of a connecting conduit. The exhaust gas and urea droplets are mixed in the connecting pipe, and the mixture then enters the second chamber and passes through the selective catalytic reduction agent to reduce harmful substances. However, the mixture of exhaust gas and urea droplets is unevenly distributed after entering the second chamber, thereby failing to uniformly pass the mixture through the selective catalytic reduction agent, which reduces the treatment efficiency.
Disclosure of Invention
The invention aims to provide a box type engine exhaust aftertreatment device which can realize relatively uniform mixing of exhaust gas and urea solution.
In order to achieve the above purpose, the invention adopts the following technical scheme: the exhaust aftertreatment device for the box-type engine comprises a shell, a plurality of aftertreatment components positioned in the shell and a cavity component communicated with the aftertreatment components, wherein the shell comprises a first end cover, a first baffle, a second end cover and a shell which is wrapped on the periphery of the first baffle and the second baffle and is fixed with the first end cover and the second end cover; a first space is formed between the first end cover and the first baffle, and the housing includes an exhaust inlet pipe penetrating through the first end cover and entering the first space; the plurality of post-treatment assemblies comprise a first post-treatment assembly at least partially positioned between the first baffle and the second baffle, a second post-treatment assembly aligned with the first post-treatment assembly and communicated with each other, and two third post-treatment assemblies arranged side by side with the first post-treatment assembly and the second post-treatment assembly; the exhaust inlet pipe is provided with a plurality of exhaust holes communicated with the first space on the peripheral wall thereof; the first baffle is provided with a first opening for communicating the first aftertreatment component with the first space; a second space is formed between the second end cover and the second baffle, and the second baffle is provided with a second opening for communicating the second aftertreatment component with the second space and a third opening for communicating the second aftertreatment component with a corresponding third aftertreatment component; the cavity assembly comprises a first cavity assembly buckled on the second opening, a mixing pipe assembly communicated with the first cavity assembly, and a second cavity assembly used for communicating the mixing pipe assembly with the third aftertreatment assembly; the mixing tube assembly includes a mixing tube including an inner cavity, a plurality of fins circumferentially distributed around a periphery of the inner cavity, a plurality of slots corresponding to the plurality of fins and in communication with the inner cavity, and a porous tube in the mixing tube.
As a further development of the invention, the exhaust gas inlet pipe is held against and fixed to the first baffle plate.
As a further development of the invention, the housing further comprises an exhaust outlet pipe communicating with the second space.
As a further improved technical scheme of the invention, the second baffle plate is provided with a through hole which penetrates through, the mixing pipe penetrates through the through hole in a suspending manner, and the fins at least partially extend beyond the second baffle plate.
As a further improved technical solution of the present invention, the mixing tube assembly includes a sleeve portion located on the second baffle plate and corresponding to the through hole, the sleeve portion is provided with the expansion cavity, and the fins are located at least partially in the expansion cavity.
As a further improved technical solution of the present invention, the first aftertreatment component includes a diesel oxidation catalyst and a first porous distribution plate located upstream of the diesel oxidation catalyst.
As a further improved technical solution of the present invention, the second aftertreatment component includes a diesel particulate filter.
As a further improved technical solution of the present invention, the third aftertreatment component includes a selective catalytic reduction agent.
As a further improved technical scheme of the invention, the box-type engine exhaust aftertreatment device comprises a mounting part which is fixed on the second end cover and is used for mounting a urea nozzle, and the urea nozzle is used for injecting urea liquid drops into the porous pipe.
As a further improved technical scheme of the invention, the second cavity assembly comprises a middle hole communicated with the mixing pipe and two connecting holes positioned at two sides of the middle hole, and the connecting holes are communicated with the corresponding third aftertreatment assembly.
Compared with the prior art, the invention enhances the crushing of urea and the heat exchange effect between the urea and the wall surface by arranging the porous pipe, thereby reducing the risk of urea crystallization.
Drawings
Fig. 1 is a schematic perspective view of an exhaust aftertreatment device for a case engine according to the present invention.
Fig. 2 is a schematic perspective view of another angle of fig. 1.
Fig. 3 is an exploded perspective view of fig. 1.
Fig. 4 is an exploded perspective view of the other angle of fig. 3.
Fig. 5 is a perspective view of the first and second end caps of fig. 2 removed.
Fig. 6 is a schematic perspective view of another angle of fig. 5.
Fig. 7 is a front view of fig. 1.
Fig. 8 is a top view of fig. 1.
Fig. 9 is a bottom view of fig. 1.
Fig. 10 is a left side view of fig. 1.
Fig. 11 is a right side view of fig. 1.
Fig. 12 is a schematic perspective view of the first end cap of fig. 6 removed.
Fig. 13 is a perspective view of the first baffle of fig. 12 removed.
Fig. 14 is a perspective view of the housing of fig. 13 removed.
Fig. 15 is a front view of fig. 2.
Fig. 16 is a schematic cross-sectional view taken along line A-A of fig. 15.
Fig. 17 is a schematic cross-sectional view taken along line B-B of fig. 15.
Detailed Description
Referring to fig. 1 to 17, a box-type engine exhaust aftertreatment device 100 is disclosed, and includes a housing 1, a plurality of aftertreatment components located within the housing 1, and a cavity component communicating the aftertreatment components.
In the illustrated embodiment of the invention, the housing 1 includes a first end cap 10, a first baffle 11, a second baffle 12, a second end cap 13, and a shell 14 wrapped around the first and second baffles 11, 12 and secured with the first and second end caps 10, 13.
Referring to fig. 16 and 17, a first space 15 is formed between the first end cap 10 and the first baffle 11, and a second space 16 is formed between the second end cap 13 and the second baffle 12. The housing 1 comprises an exhaust gas inlet pipe 17 passing through the first end cap 10 into the first space 15 and an exhaust gas outlet pipe 18 communicating with the second space 16. The exhaust inlet pipe 17 is provided with a plurality of exhaust holes 171 on its peripheral wall communicating with the first space 15 to facilitate the distribution of the air flow. In the illustrated embodiment of the invention, the exhaust inlet pipe 17 is abutted against and fixed to the first baffle plate 11 for reinforcement.
The number of aftertreatment components comprises a first aftertreatment component 21 at least partly located between the first and second baffles 11, 12, a second aftertreatment component 22 aligned with and in communication with the first aftertreatment component 21, and two third aftertreatment components 23 arranged side by side with the first and second aftertreatment components 21, 22. In the illustrated embodiment of the invention, the first aftertreatment assembly 21 includes a diesel oxidation catalyst 211 and a first porous distribution plate 212 located upstream of the diesel oxidation catalyst. The second aftertreatment component 22 includes a diesel particulate filter 221. The third aftertreatment assembly 23 includes a selective catalytic reduction agent 231.
The first baffle 11 is provided with a first opening 111 communicating the first aftertreatment component 21 with the first space 15. The second baffle 12 is provided with a second opening 121 communicating the second aftertreatment component 22 with the second space 16 and a third opening 122 communicating with the corresponding third aftertreatment component 23.
Referring to fig. 2 and 16, the exhaust aftertreatment device 100 further includes a mounting portion 19 fixed to the second end cover 13 for mounting a urea nozzle (not shown).
The chamber assembly includes a first chamber assembly 31 retained on the second opening 121, a mixing tube assembly 33 in communication with the first chamber assembly 31, and a second chamber assembly 32 for communicating the mixing tube assembly 33 with the third aftertreatment assembly 23.
The mixing tube assembly 33 includes a mixing tube 38 and a sleeve portion 39 that mates with the mixing tube 38. The mixing tube 38 includes an inner cavity 381, a plurality of fins 382 circumferentially distributed around the periphery of the inner cavity 381, a plurality of slots 383 corresponding to the plurality of fins 382 and in communication with the inner cavity 381, and a porous tube 384 located in the mixing tube 38. The perforated tube 384 at least partially overlaps the fin 382 in its axial direction. The urea nozzle is used to spray urea droplets into the porous tube 384, enhancing the breaking of the urea droplets and the heat exchange effect with the wall of the mixing tube 38, thereby reducing the risk of urea crystallization.
Referring to fig. 16, the second baffle 12 is further provided with a through hole 123 therethrough, the mixing tube 38 passes through the through hole 123 in a suspended manner, and the fin 382 extends at least partially beyond the second baffle 12. The sleeve portion 39 corresponds to the through hole 123. The sleeve portion 39 is provided with the expansion chamber 391, the fins 382 being at least partially located in the expansion chamber 391. The sleeve part 39 is arranged, so that the installation space is increased in the box type engine exhaust aftertreatment device 100, the whole size of the box type engine exhaust aftertreatment device 100 is not limited, the back pressure of the system can be flexibly adjusted by adjusting the volume of the expansion cavity 391, and the standardized design is realized.
The second chamber assembly 32 includes a middle hole 321 communicating with the mixing pipe 38, and two connecting holes 322 located at two sides of the middle hole 321, where the connecting holes 322 communicate with the corresponding third aftertreatment assemblies 23.
In addition, the above embodiments are only for illustrating the present invention and not for limiting the technical solutions described in the present invention, and it should be understood that the present invention should be construed based on those skilled in the art, and although the present invention has been described in detail with reference to the above embodiments, it should be understood that those skilled in the art may make modifications or equivalents to the present invention without departing from the spirit and scope of the invention and all technical solutions and modifications thereof should be covered by the scope of the claims of the present invention.
Claims (10)
1. The exhaust aftertreatment device for the box-type engine comprises a shell, a plurality of aftertreatment components positioned in the shell and a cavity component communicated with the aftertreatment components, wherein the shell comprises a first end cover, a first baffle, a second end cover and a shell which is wrapped on the periphery of the first baffle and the second baffle and is fixed with the first end cover and the second end cover; a first space is formed between the first end cover and the first baffle, and the housing includes an exhaust inlet pipe penetrating through the first end cover and entering the first space; the plurality of post-treatment assemblies comprise a first post-treatment assembly at least partially positioned between the first baffle and the second baffle, a second post-treatment assembly aligned with the first post-treatment assembly and communicated with each other, and two third post-treatment assemblies arranged side by side with the first post-treatment assembly and the second post-treatment assembly; the method is characterized in that: the exhaust inlet pipe is provided with a plurality of exhaust holes communicated with the first space on the peripheral wall thereof; the first baffle is provided with a first opening for communicating the first aftertreatment component with the first space; a second space is formed between the second end cover and the second baffle, and the second baffle is provided with a second opening for communicating the second aftertreatment component with the second space and a third opening for communicating the second aftertreatment component with a corresponding third aftertreatment component; the cavity assembly comprises a first cavity assembly buckled on the second opening, a mixing pipe assembly communicated with the first cavity assembly, and a second cavity assembly used for communicating the mixing pipe assembly with the third aftertreatment assembly; the mixing tube assembly includes a mixing tube including an inner cavity, a plurality of fins circumferentially distributed around a periphery of the inner cavity, a plurality of slots corresponding to the plurality of fins and in communication with the inner cavity, and a porous tube in the mixing tube, the porous tube overlapping at least in part with the fins along an axial direction thereof.
2. The case engine exhaust aftertreatment device of claim 1, wherein: the exhaust inlet pipe is abutted against and fixed on the first baffle plate.
3. The case engine exhaust aftertreatment device of claim 1, wherein: the housing further includes an exhaust outlet conduit in communication with the second space.
4. The case engine exhaust aftertreatment device of claim 1, wherein: the second baffle is provided with a through hole which penetrates through, the mixing pipe penetrates through the through hole in a suspending mode, and the fins at least partially extend beyond the second baffle.
5. The case engine exhaust aftertreatment device according to claim 4 wherein: the mixing tube assembly comprises a sleeve portion located at the second baffle plate and corresponding to the through hole, the sleeve portion is provided with an expansion cavity, and the fins are located at least partially in the expansion cavity.
6. The case engine exhaust aftertreatment device of claim 1, wherein: the first aftertreatment component includes a diesel oxidation catalyst and a first porous distribution plate located upstream of the diesel oxidation catalyst.
7. The case engine exhaust aftertreatment device of claim 6, wherein: the second aftertreatment component includes a diesel particulate filter.
8. The case engine exhaust aftertreatment device of claim 7, wherein: the third aftertreatment component includes a selective catalytic reduction agent.
9. The case engine exhaust aftertreatment device of claim 1, wherein: the box-type engine exhaust aftertreatment device comprises an installation part which is fixed on the second end cover and used for installing a urea nozzle, and the urea nozzle is used for injecting urea liquid drops into the porous pipe.
10. The case engine exhaust aftertreatment device of claim 1, wherein: the second cavity assembly comprises a middle hole communicated with the mixing pipe and two connecting holes positioned on two sides of the middle hole, and the connecting holes are communicated with the corresponding third aftertreatment assemblies.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810054841.9A CN110056417B (en) | 2018-01-19 | 2018-01-19 | Exhaust aftertreatment device for box-type engine |
| PCT/CN2018/100376 WO2019140891A1 (en) | 2018-01-19 | 2018-08-14 | Box-type engine exhaust post-treatmetnt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810054841.9A CN110056417B (en) | 2018-01-19 | 2018-01-19 | Exhaust aftertreatment device for box-type engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110056417A CN110056417A (en) | 2019-07-26 |
| CN110056417B true CN110056417B (en) | 2024-10-22 |
Family
ID=67301932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810054841.9A Active CN110056417B (en) | 2018-01-19 | 2018-01-19 | Exhaust aftertreatment device for box-type engine |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN110056417B (en) |
| WO (1) | WO2019140891A1 (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208122932U (en) * | 2018-01-19 | 2018-11-20 | 天纳克（苏州）排放系统有限公司 | Box-type exhaust post-treatment apparatus of engine |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2500059B (en) * | 2012-03-09 | 2017-05-03 | Gm Global Tech Operations Llc | A mixer for an exhaust after-treatment system |
| US10113468B2 (en) * | 2015-07-17 | 2018-10-30 | Middleville Tool & Die Co. | Mixer assembly for exhaust systems and method of forming the same |
| CN205243595U (en) * | 2015-11-19 | 2016-05-18 | 天纳克（苏州）排放系统有限公司 | Engine exhaust post -treatment 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 |
| CN107461250B (en) * | 2016-06-03 | 2024-06-14 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment system for engine |
| CN205714382U (en) * | 2016-06-03 | 2016-11-23 | 天纳克（苏州）排放系统有限公司 | Engine exhaust aftertreatment system |
| CN205714373U (en) * | 2016-06-13 | 2016-11-23 | 天纳克（苏州）排放系统有限公司 | Exhaust aftertreatment mixing arrangement |
| CN206309452U (en) * | 2016-11-04 | 2017-07-07 | 天纳克（苏州）排放系统有限公司 | Box-type tail-gas after treatment apparatus |
| CN206309451U (en) * | 2016-11-04 | 2017-07-07 | 天纳克（苏州）排放系统有限公司 | Box-type tail-gas after treatment apparatus |
| CN107255043A (en) * | 2017-07-27 | 2017-10-17 | 天纳克（苏州）排放系统有限公司 | Engine exhaust post processing encapsulation and application |
-
2018
- 2018-01-19 CN CN201810054841.9A patent/CN110056417B/en active Active
- 2018-08-14 WO PCT/CN2018/100376 patent/WO2019140891A1/en active Application Filing
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208122932U (en) * | 2018-01-19 | 2018-11-20 | 天纳克（苏州）排放系统有限公司 | Box-type exhaust post-treatment apparatus of engine |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019140891A1 (en) | 2019-07-25 |
| CN110056417A (en) | 2019-07-26 |
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