JP2009144614A - ディーゼルエンジン用の排ガス浄化装置 - Google Patents
ディーゼルエンジン用の排ガス浄化装置 Download PDFInfo
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- JP2009144614A JP2009144614A JP2007323494A JP2007323494A JP2009144614A JP 2009144614 A JP2009144614 A JP 2009144614A JP 2007323494 A JP2007323494 A JP 2007323494A JP 2007323494 A JP2007323494 A JP 2007323494A JP 2009144614 A JP2009144614 A JP 2009144614A
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- exhaust gas
- diesel engine
- exhaust pipe
- reducing agent
- reduction catalyst
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- 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
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- 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
Abstract
【解決手段】ディーゼルエンジン用の排ガス浄化装置100であって、選択還元触媒(SCR)より上流側の排気管には、上流側から下流側に向けて漸次縮径してから漸次拡径されてなる絞り部103が形成されており、当該絞り部103のうち径が最小となる領域103aよりも上流側の排気管内にミキサ構造体130が設けられ、当該ミキサ構造体130と径が最小となる領域103aとの間の排気管内に、還元剤噴射ノズル120が設けられている。
【選択図】図1
Description
図1は、本発明の実施形態に係るディーゼルエンジン用の排ガス浄化装置100を示す図、図2は、図1のV部(主要部)内を流れる排ガスの様子、及び排ガス中に含まれる拡散物質の濃度分布を示す図である。図2(a)は、排ガスが流れる様子を示す図、図2(b)は、図2(a)のB−B線断面における拡散物質の濃度分布を示す図である。なお、図2(b)では、図3(b)の場合と同じ流体解析ソフトを使用している。
101 マフラ前部
102 マフラ後部
103 絞り部
103a 径が最小となる領域
103b 混合室
103c 拡散室
120 還元剤噴射ノズル
130 ミキサ構造体
Claims (1)
- ディーゼルエンジンから排出された排ガスを排気するための排気管と、この排気管内に設けられ前記排ガス中に含まれるNOxを浄化するための選択還元触媒と、この選択還元触媒より上流側の前記排気管内に設けられ当該選択還元触媒に向けて還元剤を噴射するための還元剤噴射ノズルと、を備えたディーゼルエンジン用の排ガス浄化装置であって、
前記選択還元触媒より上流側の前記排気管には、上流側から下流側に向けて漸次縮径してから漸次拡径されてなる絞り部が形成されており、当該絞り部のうち径が最小となる領域よりも上流側の前記排気管内にミキサ構造体が設けられ、当該ミキサ構造体と径が最小となる領域との間の前記排気管内に、前記還元剤噴射ノズルが設けられていることを特徴とするディーゼルエンジン用の排ガス浄化装置。
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JP2007323494A JP5066435B2 (ja) | 2007-12-14 | 2007-12-14 | ディーゼルエンジン用の排ガス浄化装置 |
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Cited By (13)
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---|---|---|---|---|
WO2009119574A1 (ja) * | 2008-03-27 | 2009-10-01 | 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 |
JP2011112018A (ja) * | 2009-11-30 | 2011-06-09 | Hino Motors Ltd | 排気浄化装置 |
WO2012164722A1 (ja) * | 2011-06-02 | 2012-12-06 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US8499548B2 (en) | 2008-12-17 | 2013-08-06 | Donaldson Company, Inc. | Flow device for an exhaust system |
US8539761B2 (en) | 2010-01-12 | 2013-09-24 | Donaldson Company, Inc. | Flow device for exhaust treatment system |
US8938954B2 (en) | 2012-04-19 | 2015-01-27 | Donaldson Company, Inc. | Integrated exhaust treatment device having compact configuration |
CN104594990A (zh) * | 2015-02-27 | 2015-05-06 | 天纳克(苏州)排放系统有限公司 | 混合管及其排气处理装置 |
EP2652279B1 (fr) | 2010-12-15 | 2015-05-13 | Faurecia Systèmes d'Echappement | Ligne d'échappement avec dispositif d'injection de réactif gazeux |
EP2529091B1 (fr) | 2010-01-25 | 2016-04-06 | Peugeot Citroën Automobiles SA | Dispositif de post-traitement des gaz d'échappement d'un moteur à combustion interne |
US9534525B2 (en) | 2015-05-27 | 2017-01-03 | Tenneco Automotive Operating Company Inc. | Mixer assembly for exhaust aftertreatment system |
US9670811B2 (en) | 2010-06-22 | 2017-06-06 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
US9707525B2 (en) | 2013-02-15 | 2017-07-18 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
KR20210061883A (ko) * | 2019-11-20 | 2021-05-28 | 현대자동차주식회사 | 배기가스 후처리장치 및 그의 제어방법 |
Families Citing this family (4)
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WO2015105500A1 (en) * | 2014-01-10 | 2015-07-16 | Faurecia Emissions Control Technologies Usa, Llc | Modular mixer for exhaust assembly |
US10316721B1 (en) | 2018-04-23 | 2019-06-11 | Faurecia Emissions Control Technologies, Usa, Llc | High efficiency mixer for vehicle exhaust system |
US10287948B1 (en) | 2018-04-23 | 2019-05-14 | Faurecia Emissions Control Technologies, Usa, Llc | High efficiency mixer for vehicle exhaust system |
US10787946B2 (en) | 2018-09-19 | 2020-09-29 | Faurecia Emissions Control Technologies, Usa, Llc | Heated dosing mixer |
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JP2006183509A (ja) * | 2004-12-27 | 2006-07-13 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排ガス攪拌装置 |
JP2007100508A (ja) * | 2005-09-30 | 2007-04-19 | Bosch Corp | 内燃機関の排気浄化装置、及び内燃機関の排気浄化方法 |
JP2007239486A (ja) * | 2006-03-06 | 2007-09-20 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排気浄化装置 |
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JP2006029233A (ja) * | 2004-07-16 | 2006-02-02 | Nissan Diesel Motor Co Ltd | エンジンの排気浄化装置 |
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JP2007100508A (ja) * | 2005-09-30 | 2007-04-19 | Bosch Corp | 内燃機関の排気浄化装置、及び内燃機関の排気浄化方法 |
JP2007239486A (ja) * | 2006-03-06 | 2007-09-20 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排気浄化装置 |
Cited By (27)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2009236013A (ja) * | 2008-03-27 | 2009-10-15 | Mitsubishi Fuso Truck & Bus Corp | 内燃機関の排気浄化装置 |
WO2009119574A1 (ja) * | 2008-03-27 | 2009-10-01 | 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 |
US8683783B2 (en) | 2008-03-27 | 2014-04-01 | Mitsubishi Fuso Truck And Bus Corporation | Exhaust purification apparatus for internal combustion engine |
US8499548B2 (en) | 2008-12-17 | 2013-08-06 | Donaldson Company, Inc. | Flow device for an exhaust system |
US9925502B2 (en) | 2008-12-17 | 2018-03-27 | Donaldson Company, Inc. | Flow device for an exhaust system |
JP2011112018A (ja) * | 2009-11-30 | 2011-06-09 | Hino Motors Ltd | 排気浄化装置 |
US8539761B2 (en) | 2010-01-12 | 2013-09-24 | Donaldson Company, Inc. | Flow device for exhaust treatment system |
US9810126B2 (en) | 2010-01-12 | 2017-11-07 | Donaldson Company, Inc. | Flow device for exhaust treatment system |
EP2529091B1 (fr) | 2010-01-25 | 2016-04-06 | Peugeot Citroën Automobiles SA | Dispositif de post-traitement des gaz d'échappement d'un moteur à combustion interne |
US11608764B2 (en) | 2010-06-22 | 2023-03-21 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
US10968800B2 (en) | 2010-06-22 | 2021-04-06 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
US9670811B2 (en) | 2010-06-22 | 2017-06-06 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
US10294841B2 (en) | 2010-06-22 | 2019-05-21 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
EP2652279B1 (fr) | 2010-12-15 | 2015-05-13 | Faurecia Systèmes d'Echappement | Ligne d'échappement avec dispositif d'injection de réactif gazeux |
WO2012164722A1 (ja) * | 2011-06-02 | 2012-12-06 | トヨタ自動車株式会社 | 内燃機関の排気浄化装置 |
US9458750B2 (en) | 2012-04-19 | 2016-10-04 | Donaldson Company, Inc. | Integrated exhaust treatment device having compact configuration |
US9598999B2 (en) | 2012-04-19 | 2017-03-21 | Donaldson Company, Inc. | Integrated exhaust treatment device having compact configuration |
US10533477B2 (en) | 2012-04-19 | 2020-01-14 | Donaldson Company, Inc. | Integrated exhaust treatment device having compact configuration |
US8938954B2 (en) | 2012-04-19 | 2015-01-27 | Donaldson Company, Inc. | Integrated exhaust treatment device having compact configuration |
US10245564B2 (en) | 2013-02-15 | 2019-04-02 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
US9707525B2 (en) | 2013-02-15 | 2017-07-18 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
US10603642B2 (en) | 2013-02-15 | 2020-03-31 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
US11110406B2 (en) | 2013-02-15 | 2021-09-07 | Donaldson Company, Inc. | Dosing and mixing arrangement for use in exhaust aftertreatment |
CN104594990A (zh) * | 2015-02-27 | 2015-05-06 | 天纳克(苏州)排放系统有限公司 | 混合管及其排气处理装置 |
US9534525B2 (en) | 2015-05-27 | 2017-01-03 | Tenneco Automotive Operating Company Inc. | Mixer assembly for exhaust aftertreatment system |
KR20210061883A (ko) * | 2019-11-20 | 2021-05-28 | 현대자동차주식회사 | 배기가스 후처리장치 및 그의 제어방법 |
KR102287319B1 (ko) * | 2019-11-20 | 2021-08-09 | 현대자동차주식회사 | 배기가스 후처리장치 및 그의 제어방법 |
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