JP5855430B2 - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
- Publication number
- JP5855430B2 JP5855430B2 JP2011250289A JP2011250289A JP5855430B2 JP 5855430 B2 JP5855430 B2 JP 5855430B2 JP 2011250289 A JP2011250289 A JP 2011250289A JP 2011250289 A JP2011250289 A JP 2011250289A JP 5855430 B2 JP5855430 B2 JP 5855430B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust
- exhaust gas
- gas
- bent
- introduction port
- 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.)
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- 238000000746 purification Methods 0.000 title claims description 9
- 239000006185 dispersion Substances 0.000 claims description 19
- 238000012805 post-processing Methods 0.000 claims description 12
- 239000007789 gas Substances 0.000 description 78
- 239000003054 catalyst Substances 0.000 description 49
- 238000010531 catalytic reduction reaction Methods 0.000 description 38
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 16
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 11
- 238000006722 reduction reaction Methods 0.000 description 10
- 229910021529 ammonia Inorganic materials 0.000 description 8
- 238000005452 bending Methods 0.000 description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 238000004891 communication Methods 0.000 description 3
- 238000013459 approach Methods 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 239000001569 carbon dioxide Substances 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 230000035484 reaction time Effects 0.000 description 2
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
Images
Landscapes
- Exhaust Gas After Treatment (AREA)
- Exhaust Silencers (AREA)
Description
4 選択還元型触媒(後処理装置)
7B ミキシングパイプ(排気管路)
7C ガス分散室
11 排気導入口
14 排気ガイド部分
15 窪み部(導風構造)
Claims (2)
- 排気ガスを通過させて浄化する後処理装置を排気系に備え、この後処理装置に対し排気ガスを反転させて導入するレイアウトが採用された排気浄化装置において、後処理装置の入側端面を被包し且つ該後処理装置の軸心方向と略直交する向きから排気導入口を介して排気ガスを導き入れるガス分散室を備え、該ガス分散室の排気導入口に排気ガスを導く排気管路を前記後処理装置の軸心方向に延在せしめ且つ前記排気導入口の直前位置で該排気導入口から一旦離間する方向へ曲げてから前記後処理装置の軸心に向けて円弧状に曲げ戻して前記排気導入口に接続し、前記排気管路の前記後処理装置の軸心に向けて円弧状に曲げられた排気ガイド部分と協働して排気ガスの流れを前記後処理装置の軸心に向け円弧状に折り返し得るよう前記ガス分散室に導風構造を設け、前記排気ガイド部分は一様な流路断面形状を保たれながら曲げられたことを特徴とする排気浄化装置。
- 後処理装置の入側端面に対し離間する方向へ反り且つ排気導入口から排気ガスの導入方向へ離れるに従い後処理装置の入側端面に近接する窪み部により導風構造を形成したことを特徴とする請求項1に記載の排気浄化装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011250289A JP5855430B2 (ja) | 2011-11-16 | 2011-11-16 | 排気浄化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011250289A JP5855430B2 (ja) | 2011-11-16 | 2011-11-16 | 排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2013104393A JP2013104393A (ja) | 2013-05-30 |
JP5855430B2 true JP5855430B2 (ja) | 2016-02-09 |
Family
ID=48624133
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2011250289A Active JP5855430B2 (ja) | 2011-11-16 | 2011-11-16 | 排気浄化装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP5855430B2 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112282900A (zh) * | 2019-07-25 | 2021-01-29 | 康明斯排放处理公司 | 废气后处理系统 |
Family Cites Families (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2772071B1 (fr) * | 1997-12-05 | 2000-01-14 | Renault | Dispositif d'echappement pour moteur a combustion interne |
JP4785766B2 (ja) * | 2007-02-09 | 2011-10-05 | 日野自動車株式会社 | 排気浄化装置 |
JP4920532B2 (ja) * | 2007-09-13 | 2012-04-18 | 日野自動車株式会社 | 排気浄化装置 |
JP2009078591A (ja) * | 2007-09-25 | 2009-04-16 | Mitsubishi Fuso Truck & Bus Corp | 排気浄化装置の設置構造 |
FR2923534A1 (fr) * | 2007-11-14 | 2009-05-15 | Renault Sas | Dispositif d'echappement de moteur thermique |
JP5166848B2 (ja) * | 2007-12-17 | 2013-03-21 | 三菱ふそうトラック・バス株式会社 | 排気浄化装置 |
JP2011074895A (ja) * | 2009-10-01 | 2011-04-14 | Yanmar Co Ltd | 消臭触媒ユニットを備えるエンジン |
JP5550958B2 (ja) * | 2010-03-23 | 2014-07-16 | ヤンマー株式会社 | 排気ガス浄化装置 |
DE102011101128A1 (de) * | 2011-05-11 | 2012-11-15 | Volkswagen Aktiengesellschaft | Abgasreinigungseinrichtung für eine Brennkraftmaschine,Abgasanlage,Brennkraftanlage und Kraftfahrzeug |
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2011
- 2011-11-16 JP JP2011250289A patent/JP5855430B2/ja active Active
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Publication number | Publication date |
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JP2013104393A (ja) | 2013-05-30 |
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