JP2019035360A - 排気ガス浄化システム - Google Patents
排気ガス浄化システム Download PDFInfo
- Publication number
- JP2019035360A JP2019035360A JP2017156578A JP2017156578A JP2019035360A JP 2019035360 A JP2019035360 A JP 2019035360A JP 2017156578 A JP2017156578 A JP 2017156578A JP 2017156578 A JP2017156578 A JP 2017156578A JP 2019035360 A JP2019035360 A JP 2019035360A
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- scr
- reducing agent
- reduction catalyst
- exhaust 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.)
- Pending
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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
- 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
- F01N13/0093—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 of the same type
-
- 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
- F01N3/18—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 methods of operation; Control
- F01N3/20—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 methods of operation; Control specially adapted for catalytic conversion ; Methods of operation or control of catalytic converters
- F01N3/2066—Selective catalytic reduction [SCR]
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/04—Sulfur or sulfur oxides
-
- 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
- F01N2570/00—Exhaust treating apparatus eliminating, absorbing or adsorbing specific elements or compounds
- F01N2570/14—Nitrogen oxides
-
- 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
-
- 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
- Y02T10/40—Engine management systems
Abstract
Description
内燃機関から排出された排気ガスが通過する排気管内に設けられ、バナジウムを使用した選択還元型触媒を有する第1の選択還元型触媒装置と、
前記排気管内における前記第1の選択還元型触媒装置の上流側に設けられ、還元剤を噴射する第1の噴射部と、
前記排気管内において前記第1の選択還元型触媒装置の下流側に設けられ、銅を使用した選択還元型触媒を有する第2の選択還元型触媒装置と、
を備える。
10 内燃機関
11 燃焼室
13 燃料噴射インジェクタ
15 吸気バルブ
17 排気バルブ
19 ピストン
20 排気系
21 排気管
22,26 還元剤インジェクタ
23A DOC
23B DPF
23C,23D SCR
24 温度センサ
25 濃度センサ
40 制御部
41 温度取得部
42 濃度取得部
43 判定部
44 噴射制御部
50 吸気用配管
Claims (3)
- 内燃機関から排出された排気ガスが通過する排気管内に設けられ、バナジウムを使用した選択還元型触媒を有する第1の選択還元型触媒装置と、
前記排気管内における前記第1の選択還元型触媒装置の上流側に設けられ、還元剤を噴射する第1の噴射部と、
前記排気管内において前記第1の選択還元型触媒装置の下流側に設けられ、銅を使用した選択還元型触媒を有する第2の選択還元型触媒装置と、
を備える排気ガス浄化システム。 - 前記排気管内における前記第1の選択還元型触媒装置と前記第2の選択還元型触媒装置との間に設けられ、還元剤を噴射する第2の噴射部と、
前記第1の選択還元型触媒装置と前記第2の選択還元型触媒装置との間を通過する排気ガスのNOx濃度が所定濃度以上である場合、前記NOx濃度が前記所定濃度未満である場合と比べて、前記還元剤の噴射量が増大するように前記第2の噴射部を制御する制御部と、
を備える請求項1に記載の排気ガス浄化システム。 - 前記制御部は、前記NOx濃度が前記所定濃度以上である場合、前記還元剤を噴射する一方、前記NOx濃度が前記所定濃度未満である場合、前記還元剤を噴射しないように前記第2の噴射部を制御する、
請求項2に記載の排気ガス浄化システム。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017156578A JP2019035360A (ja) | 2017-08-14 | 2017-08-14 | 排気ガス浄化システム |
CN201810885545.3A CN109386364B (zh) | 2017-08-14 | 2018-08-06 | 废气净化系统 |
PH12018000215A PH12018000215B1 (en) | 2017-08-14 | 2018-08-10 | Exhaust gas cleaning system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017156578A JP2019035360A (ja) | 2017-08-14 | 2017-08-14 | 排気ガス浄化システム |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2019035360A true JP2019035360A (ja) | 2019-03-07 |
Family
ID=65417520
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017156578A Pending JP2019035360A (ja) | 2017-08-14 | 2017-08-14 | 排気ガス浄化システム |
Country Status (3)
Country | Link |
---|---|
JP (1) | JP2019035360A (ja) |
CN (1) | CN109386364B (ja) |
PH (1) | PH12018000215B1 (ja) |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2000303826A (ja) * | 1999-04-16 | 2000-10-31 | Isuzu Motors Ltd | ディーゼルエンジンの排ガス浄化装置 |
EP1286027A1 (de) * | 2001-08-14 | 2003-02-26 | Siemens Aktiengesellschaft | Katalysatorsystem, Verwendung eines Katalysatorsystems und Verfahren zum Betrieb eines Katalysatorsystems |
DE10308288B4 (de) * | 2003-02-26 | 2006-09-28 | Umicore Ag & Co. Kg | Verfahren zur Entfernung von Stickoxiden aus dem Abgas eines mager betriebenen Verbrennungsmotors und Abgasreinigungsanlage hierzu |
JP2006057578A (ja) * | 2004-08-23 | 2006-03-02 | Hino Motors Ltd | 排気浄化装置 |
DE502008000454D1 (de) * | 2008-04-11 | 2010-04-29 | Umicore Ag & Co Kg | Abgasreinigungssystem zur Behandlung von Motorenabgasen mittels SCR-Katalysator |
US8997465B2 (en) * | 2009-02-20 | 2015-04-07 | Haldor Topsoe A/S | Method for purification of exhaust gas from a diesel engine |
US20110064632A1 (en) * | 2009-09-14 | 2011-03-17 | Ford Global Technologies, Llc | Staged Catalyst System and Method of Using the Same |
US8505282B2 (en) * | 2011-09-09 | 2013-08-13 | GM Global Technology Operations LLC | Selective catalytic reduction (SCR) device control system |
US9890678B2 (en) * | 2013-10-03 | 2018-02-13 | Baohua Qi | Multi-stage SCR control and diagnostic system |
US10113462B2 (en) * | 2015-04-24 | 2018-10-30 | Cummins Inc. | Advanced exhaust aftertreatment system architecture |
SE539133C2 (sv) * | 2015-08-27 | 2017-04-11 | Scania Cv Ab | Avgasbehandlingssystem och förfarande för behandling av en avgasström |
US9616385B1 (en) * | 2015-09-30 | 2017-04-11 | Deere & Company | System and method for regulating exhaust emissions |
-
2017
- 2017-08-14 JP JP2017156578A patent/JP2019035360A/ja active Pending
-
2018
- 2018-08-06 CN CN201810885545.3A patent/CN109386364B/zh active Active
- 2018-08-10 PH PH12018000215A patent/PH12018000215B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
CN109386364B (zh) | 2021-08-13 |
CN109386364A (zh) | 2019-02-26 |
PH12018000215A1 (en) | 2019-03-04 |
PH12018000215B1 (en) | 2019-03-04 |
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