JP4408051B2 - エンジンの排気浄化装置 - Google Patents
エンジンの排気浄化装置 Download PDFInfo
- Publication number
- JP4408051B2 JP4408051B2 JP2004089882A JP2004089882A JP4408051B2 JP 4408051 B2 JP4408051 B2 JP 4408051B2 JP 2004089882 A JP2004089882 A JP 2004089882A JP 2004089882 A JP2004089882 A JP 2004089882A JP 4408051 B2 JP4408051 B2 JP 4408051B2
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- JP
- Japan
- Prior art keywords
- exhaust
- air
- reducing agent
- engine
- pipe
- 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
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- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Exhaust Gas After Treatment (AREA)
Description
2…排気マニフォールド
3…排気管
4,5…触媒内蔵マフラ
7…NOx還元触媒
9…噴射ノズル
15…還元剤
20…エアリザーブタンク
21…エア配管
22…電磁開閉弁
23…エアノズル
24…温度センサ
25…制御装置
26…ECU
Claims (2)
- エンジンの排気系に配設され、排気中の窒素酸化物を還元剤により還元浄化する還元触媒と、
上記排気系にて上記還元触媒の排気上流側に取り付けられ、排気中に上記還元剤を噴射供給する噴射ノズルと、
上記排気系の排気管内にて上記噴射ノズルの近傍に圧力エアを噴出するエア噴出手段と、
上記還元触媒の排気上流側の排気温度が所定温度以下、かつ、上記エンジンの回転数が所定値以下のときに、上記噴射ノズルの近傍に圧力エアが噴出されるように、上記エア噴出手段を制御する制御装置と、
を備え、
上記エア噴出手段は、圧力エアが収容されたエアリザーブタンクと、このエアリザーブタンクから延びるエア配管上に設けられ該エア配管のエア流路を開閉制御する弁機構と、上記噴射ノズルの排気下流側にて噴出口が排気上流側を向くように上記排気系の排気管の内部に取り付けられ、上記エアリザーブタンクから上記弁機構を介して供給された圧力エアを該排気管内に噴出するエアノズルと、を備えて成ることを特徴とするエンジンの排気浄化装置。 - 上記エアノズルは、圧力エアを円錐状に噴出することを特徴とする請求項1記載のエンジンの排気浄化装置。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004089882A JP4408051B2 (ja) | 2004-03-25 | 2004-03-25 | エンジンの排気浄化装置 |
PCT/JP2005/001530 WO2005073528A1 (ja) | 2004-02-02 | 2005-02-02 | エンジンの排気浄化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004089882A JP4408051B2 (ja) | 2004-03-25 | 2004-03-25 | エンジンの排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005273579A JP2005273579A (ja) | 2005-10-06 |
JP4408051B2 true JP4408051B2 (ja) | 2010-02-03 |
Family
ID=35173519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004089882A Expired - Fee Related JP4408051B2 (ja) | 2004-02-02 | 2004-03-25 | エンジンの排気浄化装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4408051B2 (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE428847T1 (de) * | 2006-07-12 | 2009-05-15 | Delphi Tech Inc | Fluiddosiervorrichtung |
JP2008180202A (ja) * | 2007-01-26 | 2008-08-07 | Nissan Diesel Motor Co Ltd | 排気浄化装置 |
JP4949151B2 (ja) | 2007-07-20 | 2012-06-06 | 三菱ふそうトラック・バス株式会社 | 内燃機関の排気浄化装置 |
JP4949152B2 (ja) | 2007-07-20 | 2012-06-06 | 三菱ふそうトラック・バス株式会社 | 内燃機関の排気浄化装置 |
JP5010662B2 (ja) * | 2009-10-08 | 2012-08-29 | ヤンマー株式会社 | 排気浄化装置 |
JP6930521B2 (ja) * | 2018-12-28 | 2021-09-01 | 株式会社デンソー | エンジンの排気浄化システム |
CN113931723A (zh) * | 2021-10-12 | 2022-01-14 | 河北工业大学 | 一种减少scr系统尿素结晶的装置及方法 |
-
2004
- 2004-03-25 JP JP2004089882A patent/JP4408051B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2005273579A (ja) | 2005-10-06 |
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