JP7310676B2 - ミキサー - Google Patents
ミキサー Download PDFInfo
- Publication number
- JP7310676B2 JP7310676B2 JP2020057411A JP2020057411A JP7310676B2 JP 7310676 B2 JP7310676 B2 JP 7310676B2 JP 2020057411 A JP2020057411 A JP 2020057411A JP 2020057411 A JP2020057411 A JP 2020057411A JP 7310676 B2 JP7310676 B2 JP 7310676B2
- Authority
- JP
- Japan
- Prior art keywords
- mixer
- fin members
- exhaust gas
- urea water
- reducing agent
- 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.)
- Active
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
-
- 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
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/12—Improving ICE efficiencies
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)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
実施の形態では、1つのフィン部材に設けられる羽根部が3つである場合を例に挙げて説明したが、これに限定されない。1つのフィン部材に設けられる羽根部の数は、例えば、尿素水噴射装置2の噴射口の数と同数であればよい。
実施の形態では、ミキサー3を構成する複数のフィン部材が同じ形状かつ同じサイズである場合を例に挙げて説明したが、これに限定されない。例えば、ミキサー3を構成する複数のフィン部材は、互いに異なる形状やサイズであってもよい。
実施の形態では、NOx浄化触媒の一例としてSCR触媒4を例に挙げて説明したが、これに限定されない。SCR触媒4の代わりに、他の選択還元型触媒、NOx吸着触媒、または三元触媒が用いられてもよい。その場合、尿素水以外の還元剤(例えば、炭化水素等)が用いられてもよい。
2 尿素水噴射装置
3 ミキサー
3a、3b、3c フィン部材
4 SCR
Claims (4)
- 内燃機関から排出された排ガスが流れる排気管内において前記排気管内に還元剤を供給する還元剤供給装置とNOx浄化触媒との間に設けられ、前記排ガスの旋回流を発生させて前記排ガスと前記還元剤とを攪拌するミキサーであって、
前記還元剤供給装置の噴射口の数と同数の羽根部を備えたフィン部材を複数有し、
前記複数のフィン部材は、
前記噴射口の位置に対応する領域に、前記複数のフィン部材それぞれの前記羽根部が密集するように配置される、
ミキサー。 - 前記複数のフィン部材は、
前記排ガスの流れ方向において、所定の間隔を空けて設けられている、
請求項1に記載のミキサー。 - 前記複数のフィン部材は、
同一形状および同一サイズである、
請求項1または2に記載のミキサー。 - 前記複数のフィン部材は、
互いに前記排気管の周方向にずれて設けられている、
請求項3に記載のミキサー。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020057411A JP7310676B2 (ja) | 2020-03-27 | 2020-03-27 | ミキサー |
CN202180023457.2A CN115315572B (zh) | 2020-03-27 | 2021-03-24 | 混合器 |
PCT/JP2021/012289 WO2021193735A1 (ja) | 2020-03-27 | 2021-03-24 | ミキサー |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2020057411A JP7310676B2 (ja) | 2020-03-27 | 2020-03-27 | ミキサー |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2021156217A JP2021156217A (ja) | 2021-10-07 |
JP7310676B2 true JP7310676B2 (ja) | 2023-07-19 |
Family
ID=77892221
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2020057411A Active JP7310676B2 (ja) | 2020-03-27 | 2020-03-27 | ミキサー |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP7310676B2 (ja) |
CN (1) | CN115315572B (ja) |
WO (1) | WO2021193735A1 (ja) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015217357A1 (de) | 2015-09-10 | 2017-03-16 | Volkswagen Aktiengesellschaft | Mischvorrichtung und Mischersystem für eine Abgasanlage eines Verbrennungsmotors |
JP2019143532A (ja) | 2018-02-20 | 2019-08-29 | いすゞ自動車株式会社 | 還元剤噴射装置 |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101900018A (zh) * | 2010-07-06 | 2010-12-01 | 清华大学 | 一种尿素混合装置 |
JP6347474B2 (ja) * | 2013-07-31 | 2018-06-27 | カルソニックカンセイ株式会社 | 排気浄化装置 |
JP2017214884A (ja) * | 2016-06-01 | 2017-12-07 | いすゞ自動車株式会社 | 排気浄化システム |
AU2017292601A1 (en) * | 2016-07-07 | 2019-02-07 | Caterpillar Inc. | Dual mixer for exhaust gas aftertreatment systems |
US10138789B1 (en) * | 2017-07-18 | 2018-11-27 | GM Global Technology Operations LLC | Exhaust gas treatment systems utilizing a plurality of reduced-resistance mixers |
-
2020
- 2020-03-27 JP JP2020057411A patent/JP7310676B2/ja active Active
-
2021
- 2021-03-24 WO PCT/JP2021/012289 patent/WO2021193735A1/ja active Application Filing
- 2021-03-24 CN CN202180023457.2A patent/CN115315572B/zh active Active
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102015217357A1 (de) | 2015-09-10 | 2017-03-16 | Volkswagen Aktiengesellschaft | Mischvorrichtung und Mischersystem für eine Abgasanlage eines Verbrennungsmotors |
JP2019143532A (ja) | 2018-02-20 | 2019-08-29 | いすゞ自動車株式会社 | 還元剤噴射装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2021156217A (ja) | 2021-10-07 |
CN115315572A (zh) | 2022-11-08 |
WO2021193735A1 (ja) | 2021-09-30 |
CN115315572B (zh) | 2024-04-02 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7581387B2 (en) | Exhaust gas mixing system | |
EP2578828B1 (en) | Exhaust gas purification device | |
JP5114219B2 (ja) | 内燃機関用の排ガス浄化装置 | |
EP3279440B1 (en) | Exhaust purification unit | |
EP3327263B1 (en) | Apparatus for aftertreatment of exhaust gas comprising inline housing | |
EP2860369A1 (en) | System and device for reducing reductant deposit formation in exhaust aftertreatment systems | |
EP1669566A1 (en) | Exhaust gas purification device of engine | |
JP4600457B2 (ja) | 排気通路の添加剤分散板構造 | |
EP3438426B1 (en) | Exhaust purification system | |
WO2005073530A1 (ja) | エンジンの排気浄化装置 | |
JP4461973B2 (ja) | ディーゼルエンジンの排気浄化システム | |
US8443595B2 (en) | Additive-agent diffusion plate in exhaust passage, structure of additive-agent diffusion plate, and exhaust system including additive-agent diffusion plate | |
US11293328B2 (en) | Mixer baffle with integrated sensor | |
US20200102873A1 (en) | Diesel emissions fluid injector mixer | |
JP2013002335A (ja) | 排気ガス後処理装置 | |
JP7310676B2 (ja) | ミキサー | |
EP2075051A2 (en) | Apparatus for reducing nitrogen oxide in exhaust pipe | |
US11680507B2 (en) | Inlet flow for high efficiency mixers | |
JP2010090808A (ja) | 排気浄化装置および内燃機関の排気浄化装置 | |
CN111263849B (zh) | 内燃机的排气净化装置 | |
JP7314840B2 (ja) | 排気構造 | |
JP2009162122A (ja) | 排気通路構造 | |
JP2008082253A (ja) | 液体還元剤噴射ノズルの構造 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20220330 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20230322 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20230407 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20230606 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20230619 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7310676 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |