JP5500959B2 - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
- Publication number
- JP5500959B2 JP5500959B2 JP2009271215A JP2009271215A JP5500959B2 JP 5500959 B2 JP5500959 B2 JP 5500959B2 JP 2009271215 A JP2009271215 A JP 2009271215A JP 2009271215 A JP2009271215 A JP 2009271215A JP 5500959 B2 JP5500959 B2 JP 5500959B2
- Authority
- JP
- Japan
- Prior art keywords
- reducing agent
- exhaust gas
- dispersion plate
- reduction catalyst
- urea water
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
- Exhaust Gas After Treatment (AREA)
- Processes For Solid Components From Exhaust (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Description
[化1]
(NH2)2CO+H2O→2NH3+CO2
3 選択還元型触媒
4 排気管(排気流路)
5 排気ガス
6 尿素水添加装置(還元剤添加手段)
7 尿素水(還元剤)
13 ケーシング(排気流路)
14 絞り部
15 散気孔
16 分散板
Claims (3)
- 排気流路の途中に酸素共存下でも選択的にNOxを還元剤と反応させる性質を備えた選択還元型触媒を介装し、該選択還元型触媒の入口付近に排気ガスの流れ方向へ向け流路径が徐々に縮小し且つ途中から徐々に拡径して元の流路径に復帰するようにした絞り部を形成すると共に、該絞り部の最小径部に多数の散気孔を備えた分散板を配置し、該分散板と前記選択還元型触媒との間に前記分散板の背面に向け還元剤を噴射する還元剤添加手段を配置した排気浄化装置であって、分散板の中央部付近の開口率を相対的に下げ且つ該中央部を取り囲む外周部の開口率を相対的に上げると共に、前記外周部における還元剤添加手段からの還元剤が当たる衝突領域を取り囲む位置に排気ガスの主流を形成し得るよう最大開口面積の散気孔を形成し、これら最大開口面積の散気孔の円周方向における相互間に前記中央部と同程度に開口率を下げた低開口率領域を部分的に介在させたことを特徴とする排気浄化装置。
- 還元剤が尿素水であることを特徴とする請求項1に記載の排気浄化装置。
- 選択還元型触媒をパティキュレートフィルタに担持させたことを特徴とする請求項1又は2に記載の排気浄化装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009271215A JP5500959B2 (ja) | 2009-11-30 | 2009-11-30 | 排気浄化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2009271215A JP5500959B2 (ja) | 2009-11-30 | 2009-11-30 | 排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011112018A JP2011112018A (ja) | 2011-06-09 |
JP5500959B2 true JP5500959B2 (ja) | 2014-05-21 |
Family
ID=44234533
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2009271215A Expired - Fee Related JP5500959B2 (ja) | 2009-11-30 | 2009-11-30 | 排気浄化装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5500959B2 (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6237483B2 (ja) * | 2014-06-12 | 2017-11-29 | 株式会社豊田自動織機 | 排気浄化装置 |
JP2019127880A (ja) * | 2018-01-24 | 2019-08-01 | フタバ産業株式会社 | 撹拌装置 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4577099B2 (ja) * | 2005-06-03 | 2010-11-10 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
JP5066435B2 (ja) * | 2007-12-14 | 2012-11-07 | 東京濾器株式会社 | ディーゼルエンジン用の排ガス浄化装置 |
JP2009236013A (ja) * | 2008-03-27 | 2009-10-15 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排気浄化装置 |
-
2009
- 2009-11-30 JP JP2009271215A patent/JP5500959B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2011112018A (ja) | 2011-06-09 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP5173308B2 (ja) | 排気浄化装置 | |
US9341099B2 (en) | Emissions cleaning module | |
JP4785766B2 (ja) | 排気浄化装置 | |
JP5099684B2 (ja) | 排気浄化装置 | |
CN101550859B (zh) | 废气净化设备 | |
JP4881213B2 (ja) | 排気浄化装置 | |
JP5449009B2 (ja) | 排気浄化装置 | |
JP2009114930A (ja) | 排気浄化装置 | |
CN104024596A (zh) | 排气净化装置 | |
KR101526374B1 (ko) | 배기 시스템 | |
KR100999616B1 (ko) | 배기 가스 내의 질소산화물 저감 장치 | |
US20130047583A1 (en) | Aftertreatment system | |
JP2009156071A (ja) | 内燃機関の排気ガス浄化装置 | |
JP4651560B2 (ja) | 内燃機関の排気浄化装置 | |
JP2008144644A (ja) | 内燃機関の排気浄化装置 | |
CN103806989A (zh) | 用于车辆的排放气体净化系统 | |
JP2010019221A (ja) | エンジンの排気浄化装置 | |
JP2011099333A (ja) | 排気浄化装置 | |
JP2010248955A (ja) | 排気浄化装置 | |
JP5500959B2 (ja) | 排気浄化装置 | |
KR100999614B1 (ko) | 배기 가스 내의 질소산화물 저감 장치 | |
JP2008274850A (ja) | 排気浄化装置 | |
JP4214073B2 (ja) | 尿素水添加装置 | |
JP5555023B2 (ja) | 排気浄化装置 | |
JP5950631B2 (ja) | 排気浄化装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20120904 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20130808 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20130813 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20130924 |
|
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: 20140304 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20140311 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 5500959 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
LAPS | Cancellation because of no payment of annual fees |