JP4920532B2 - 排気浄化装置 - Google Patents
排気浄化装置 Download PDFInfo
- Publication number
- JP4920532B2 JP4920532B2 JP2007237907A JP2007237907A JP4920532B2 JP 4920532 B2 JP4920532 B2 JP 4920532B2 JP 2007237907 A JP2007237907 A JP 2007237907A JP 2007237907 A JP2007237907 A JP 2007237907A JP 4920532 B2 JP4920532 B2 JP 4920532B2
- Authority
- JP
- Japan
- Prior art keywords
- exhaust gas
- exhaust
- reduction catalyst
- selective catalytic
- catalytic reduction
- 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.)
- Active
Links
- 238000000746 purification Methods 0.000 title claims description 9
- 238000005452 bending Methods 0.000 claims description 15
- 238000012805 post-processing Methods 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims 1
- 239000007789 gas Substances 0.000 description 70
- 239000003054 catalyst Substances 0.000 description 46
- 238000010531 catalytic reduction reaction Methods 0.000 description 33
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 18
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 15
- 238000006722 reduction reaction Methods 0.000 description 14
- 229910021529 ammonia Inorganic materials 0.000 description 9
- 239000006185 dispersion Substances 0.000 description 7
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 5
- 239000004202 carbamide Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- 239000003638 chemical reducing agent Substances 0.000 description 3
- 230000035484 reaction time Effects 0.000 description 3
- 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
- 230000000694 effects Effects 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 239000001301 oxygen Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 239000003595 mist Substances 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
- 230000001737 promoting effect Effects 0.000 description 1
- 238000009751 slip forming Methods 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
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
- F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
- F01N3/02—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust
- F01N3/021—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters
- F01N3/033—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices
- F01N3/035—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for cooling, or for removing solid constituents of, exhaust by means of filters in combination with other devices with catalytic reactors, e.g. catalysed diesel particulate filters
-
- 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
-
- 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
- F01N13/0097—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 arranged in a single housing
-
- 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
- F01N13/08—Other arrangements or adaptations of exhaust conduits
-
- 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
- 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
- F01N3/24—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 constructional aspects of converting apparatus
- F01N3/28—Construction of catalytic reactors
- F01N3/2892—Exhaust flow directors or the like, e.g. upstream of catalytic device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/402—Dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2257/00—Components to be removed
- B01D2257/40—Nitrogen compounds
- B01D2257/404—Nitrogen oxides other than dinitrogen oxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/01—Engine exhaust gases
- B01D2258/012—Diesel engines and lean burn gasoline engines
-
- 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
- F01N2470/00—Structure or shape of gas passages, pipes or tubes
- F01N2470/18—Structure or shape of gas passages, pipes or tubes the axis of inlet or outlet tubes being other than the longitudinal axis of apparatus
-
- 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
- F01N2610/00—Adding substances to exhaust gases
- F01N2610/02—Adding substances to exhaust gases the substance being ammonia or urea
-
- 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
- Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
- Y02C20/00—Capture or disposal of greenhouse gases
- Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)
-
- 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
Description
4 排気管
6 選択還元型触媒(後処理装置)
13 排気導入口
14 導入部
15 窪み部(第一の窪み部)
16 ミキシングパイプ(排気流路)
17 窪み部(第二の窪み部)
Claims (1)
- 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導入部を備え、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第一の窪み部を前記導入部に形成すると共に、該導入部の排気導入口に接続される排気流路を後処理装置の出側に向けて延在し、この排気流路と前記排気導入口とが成す屈曲部分の直前位置に曲がり方向内側の排気ガスの流れを外側に導く第二の窪み部を形成したことを特徴とする排気浄化装置。
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007237907A JP4920532B2 (ja) | 2007-09-13 | 2007-09-13 | 排気浄化装置 |
PCT/JP2008/000609 WO2009034664A1 (ja) | 2007-09-13 | 2008-03-17 | 排気浄化装置 |
US12/677,957 US8327630B2 (en) | 2007-09-13 | 2008-03-17 | Exhaust emission control device |
EP08720494.7A EP2187010B1 (en) | 2007-09-13 | 2008-03-17 | Exhaust purification apparatus |
CN200880107158.1A CN101878356B (zh) | 2007-09-13 | 2008-03-17 | 排气净化装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007237907A JP4920532B2 (ja) | 2007-09-13 | 2007-09-13 | 排気浄化装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2009068415A JP2009068415A (ja) | 2009-04-02 |
JP4920532B2 true JP4920532B2 (ja) | 2012-04-18 |
Family
ID=40451687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2007237907A Active JP4920532B2 (ja) | 2007-09-13 | 2007-09-13 | 排気浄化装置 |
Country Status (5)
Country | Link |
---|---|
US (1) | US8327630B2 (ja) |
EP (1) | EP2187010B1 (ja) |
JP (1) | JP4920532B2 (ja) |
CN (1) | CN101878356B (ja) |
WO (1) | WO2009034664A1 (ja) |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4286888B2 (ja) * | 2007-09-28 | 2009-07-01 | 日産ディーゼル工業株式会社 | 排気浄化装置 |
CN102741517B (zh) * | 2009-12-23 | 2016-03-09 | 卡特彼勒公司 | 废气后处理系统 |
JP5855430B2 (ja) * | 2011-11-16 | 2016-02-09 | 日野自動車株式会社 | 排気浄化装置 |
JP5890661B2 (ja) * | 2011-11-16 | 2016-03-22 | 日野自動車株式会社 | 排気浄化装置 |
JP5990025B2 (ja) * | 2012-04-12 | 2016-09-07 | 日野自動車株式会社 | ミキシング構造 |
EP2863028B1 (en) * | 2012-07-05 | 2021-09-08 | Komatsu Ltd. | Engine unit and working vehicle |
JP6055305B2 (ja) | 2012-12-26 | 2016-12-27 | ヤンマー株式会社 | 排気ガス浄化装置 |
WO2014112063A1 (ja) | 2013-01-17 | 2014-07-24 | 株式会社小松製作所 | 還元剤水溶液ミキシング装置およびこれを備えた排気ガス後処理装置 |
JP5530565B1 (ja) | 2013-01-17 | 2014-06-25 | 株式会社小松製作所 | 還元剤水溶液ミキシング装置およびこれを備えた排気ガス後処理装置 |
CN104066944B (zh) | 2013-01-17 | 2016-08-31 | 株式会社小松制作所 | 还原剂水溶液混合装置及具备它的废气后处理装置 |
KR101379780B1 (ko) | 2013-01-17 | 2014-04-04 | 가부시키가이샤 고마쓰 세이사쿠쇼 | 환원제 수용액 믹싱 장치 및 이것을 구비한 배기 가스 후처리 장치 |
JP6571451B2 (ja) * | 2015-08-27 | 2019-09-04 | 日野自動車株式会社 | 排気浄化装置 |
JP6752733B2 (ja) * | 2017-02-03 | 2020-09-09 | 日野自動車株式会社 | 排気浄化装置 |
JP6756644B2 (ja) * | 2017-03-09 | 2020-09-16 | 日野自動車株式会社 | 排気浄化装置 |
CN110056415A (zh) * | 2018-01-19 | 2019-07-26 | 天纳克(苏州)排放系统有限公司 | 发动机排气后处理装置 |
JP7251997B2 (ja) * | 2019-02-05 | 2023-04-04 | フタバ産業株式会社 | 排気浄化装置 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA972972A (en) * | 1972-04-07 | 1975-08-19 | Stanley B. Wallis | Gas distribution system for a catalytic converter |
DE2345383A1 (de) | 1973-09-08 | 1975-03-20 | Daimler Benz Ag | Verbrennungsmotor mit nachverbrennungseinrichtung |
JPS5222708B2 (ja) * | 1973-11-26 | 1977-06-18 | ||
JP3318696B2 (ja) * | 1994-07-05 | 2002-08-26 | 新日本製鐵株式会社 | 内燃機関の排気浄化装置 |
DE19633563C2 (de) * | 1996-08-21 | 1999-04-01 | Porsche Ag | Abgasanlage einer Brennkraftmaschine |
FR2772071B1 (fr) * | 1997-12-05 | 2000-01-14 | Renault | Dispositif d'echappement pour moteur a combustion interne |
JP2005155404A (ja) * | 2003-11-25 | 2005-06-16 | Komatsu Ltd | 内燃機関の排気ガス浄化装置 |
JP2006017018A (ja) * | 2004-06-30 | 2006-01-19 | Toyota Motor Corp | 車両用排気管路の構造 |
FR2874649B1 (fr) * | 2004-08-31 | 2008-02-22 | Faurecia Sys Echappement | Organe de purification catalytique |
JP4641952B2 (ja) * | 2006-02-08 | 2011-03-02 | 本田技研工業株式会社 | 排気触媒装置を備える多気筒内燃機関 |
JP4785766B2 (ja) * | 2007-02-09 | 2011-10-05 | 日野自動車株式会社 | 排気浄化装置 |
JP4928304B2 (ja) | 2007-02-23 | 2012-05-09 | 日野自動車株式会社 | 排気浄化装置 |
DE202007010435U1 (de) * | 2007-07-26 | 2007-10-25 | Heinrich Gillet Gmbh | Abgasanlage für Nutzfahrzeuge |
-
2007
- 2007-09-13 JP JP2007237907A patent/JP4920532B2/ja active Active
-
2008
- 2008-03-17 WO PCT/JP2008/000609 patent/WO2009034664A1/ja active Application Filing
- 2008-03-17 CN CN200880107158.1A patent/CN101878356B/zh active Active
- 2008-03-17 US US12/677,957 patent/US8327630B2/en active Active
- 2008-03-17 EP EP08720494.7A patent/EP2187010B1/en active Active
Also Published As
Publication number | Publication date |
---|---|
EP2187010B1 (en) | 2017-04-19 |
CN101878356A (zh) | 2010-11-03 |
US8327630B2 (en) | 2012-12-11 |
EP2187010A1 (en) | 2010-05-19 |
US20110214416A1 (en) | 2011-09-08 |
EP2187010A4 (en) | 2011-04-13 |
CN101878356B (zh) | 2014-09-17 |
JP2009068415A (ja) | 2009-04-02 |
WO2009034664A1 (ja) | 2009-03-19 |
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