KR100923615B1 - 내연 기관의 배기 가스 정화 장치 - Google Patents
내연 기관의 배기 가스 정화 장치 Download PDFInfo
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- KR100923615B1 KR100923615B1 KR1020080132781A KR20080132781A KR100923615B1 KR 100923615 B1 KR100923615 B1 KR 100923615B1 KR 1020080132781 A KR1020080132781 A KR 1020080132781A KR 20080132781 A KR20080132781 A KR 20080132781A KR 100923615 B1 KR100923615 B1 KR 100923615B1
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- exhaust gas
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- 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
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- 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]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/20—Mixing gases with liquids
- B01F23/21—Mixing gases with liquids by introducing liquids into gaseous media
- B01F23/213—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids
- B01F23/2132—Mixing gases with liquids by introducing liquids into gaseous media by spraying or atomising of the liquids using nozzles
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/314—Injector mixers in conduits or tubes through which the main component flows wherein additional components are introduced at the circumference of the conduit
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- 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
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- 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
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- 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
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
- B01F2025/93—Arrangements, nature or configuration of flow guiding elements
- B01F2025/931—Flow guiding elements surrounding feed openings, e.g. jet nozzles
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- 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
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- 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
- F01N2570/10—Carbon or carbon oxides
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- 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
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- 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
- F01N2610/03—Adding substances to exhaust gases the substance being hydrocarbons, e.g. engine fuel
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- 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
- F01N2610/14—Arrangements for the supply of substances, e.g. conduits
- F01N2610/1453—Sprayers or atomisers; Arrangement thereof in the exhaust apparatus
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B37/00—Engines characterised by provision of pumps driven at least for part of the time by exhaust
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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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Exhaust Gas After Treatment (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Description
Claims (10)
- 엔진으로부터 배출된 배기 가스를 외부로 안내하는 배기 통로와,상기 배기 통로의 도중에 설치된 촉매와,상기 배기 통로에 있어서의 상기 촉매의 상류측에 접속된 분사로와,상기 분사로에 설치되고, 당해 분사로를 통해 상기 촉매로 첨가제를 공급하는 첨가제 분사 밸브와,상기 배기 통로를 유동하는 배기 가스의 일부를 상기 분사로 내로 유입시키는 유입로와,상기 유입로로부터 상기 분사로로 유입된 배기 가스의 유동을, 상기 분사로 내측을 소기하는 유동으로 변경하는 소기류 형성 수단을 구비한 것을 특징으로 하는 내연 기관의 배기 가스 정화 장치.
- 제1항에 있어서, 상기 배기 통로는, 상기 촉매의 입구측에 배기 가스류의 방향을 바꾸는 굴곡부를 갖고,상기 분사로는, 상기 굴곡부의 도중으로부터 외측으로 나뉘어지도록 기단부가 접속되고,상기 유입로는, 상기 분사로의 기단부와 상기 기단부로부터 직상류의 구부러지면서 연장되는 배기 통로 부분과의 사이에서 이루는 분기부를 외측으로 확장하여 형성된 것을 특징으로 하는 내연 기관의 배기 가스 정화 장치.
- 제1항에 있어서, 상기 배기 통로는, 상기 촉매의 입구측에 배기 가스류의 방향을 바꾸는 굴곡부를 갖고,상기 분사로는, 상기 굴곡부의 도중으로부터 외측으로 나뉘어지도록 기단부가 접속되고,상기 유입로는, 일단부가, 상기 분사로의 기단부와 상기 기단부로부터 직상류의 구부러지면서 연장되는 배기 통로 부분과의 사이에서 이루는 분기부 중의 배기 통로 부분에 접속되고, 타단부가 분사로에 접속된 도입관 부재인 것을 특징으로 하는 내연 기관의 배기 가스 정화 장치.
- 제1항에 있어서, 상기 소기류 형성 수단은, 상기 분사로의 벽면에, 상기 유입로로부터 도입된 배기 가스가 충돌하는 충돌부를 구비하고,상기 충돌에 의해 발생되는 배기 가스의 유동에 의해 상기 분사로 내측을 소기하는 것을 특징으로 하는 내연 기관의 배기 가스 정화 장치.
- 제1항에 있어서, 상기 소기류 형성 수단은 상기 유입로가, 상기 분사로 내에 배기 가스의 선회류를 발생시키도록 상기 분사로의 축선에 대해 오프셋하여 상기 분사로에 개방하고,상기 선회류에 의해 상기 분사로 내측을 소기하는 것을 특징으로 하는 내연 기관의 배기 가스 정화 장치.
- 엔진으로부터 배출된 배기 가스를 외부로 안내하는 배기 통로와,상기 배기 통로의 도중에 설치된 촉매와,상기 배기 통로에 있어서의 상기 촉매의 상류측에 접속된 분사로와,상기 분사로에 설치되고, 상기 분사로를 통해 상기 촉매로 첨가제를 공급하는 첨가제 분사 밸브를 갖는 내연 기관의 배기 가스 정화 장치이며,상기 분사로는, 상기 배기 통로와는 별개 부재이고 또한 그 말단부가 상기 배기 통로 내로 돌출하도록 설치된 관 부재와,상기 관 부재의 말단부에 형성되고, 상기 배기 통로를 유동하는 배기 가스의 일부를 수용하는 절결부를 갖게 형성되고,상기 절결부로부터 상기 배기 통로를 유동하는 배기 가스의 일부를 상기 관 부재의 내부에 유입시켜 상기 관 부재 내측을 소기하는 유동으로 변경하는 것을 특징으로 하는 내연 기관의 배기 가스 정화 장치.
- 제6항에 있어서, 상기 절결부는, 상기 관 부재의 말단부를 비스듬하게 절결하여, 상기 배기 통로를 유동하는 배기 가스의 일부를 수용하는 도입 포트로 하여 이루어지는 것을 특징으로 하는 내연 기관의 배기 가스 정화 장치.
- 제6항에 있어서, 상기 절결부는, 상기 관 부재의 벽부에 축심 방향으로 연장되는 슬릿을 형성하고, 상기 배기 통로를 유동하는 배기 가스의 일부가 상기 슬릿으로부터 관 부재의 내부로 유입되는 것을 특징으로 하는 내연 기관의 배기 가스 정화 장치.
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Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2007332381A JP4332756B2 (ja) | 2007-12-25 | 2007-12-25 | 内燃機関の排気ガス浄化装置 |
JPJP-P-2007-332381 | 2007-12-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20090069237A KR20090069237A (ko) | 2009-06-30 |
KR100923615B1 true KR100923615B1 (ko) | 2009-10-23 |
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Application Number | Title | Priority Date | Filing Date |
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KR1020080132781A KR100923615B1 (ko) | 2007-12-25 | 2008-12-24 | 내연 기관의 배기 가스 정화 장치 |
Country Status (7)
Country | Link |
---|---|
US (1) | US7730721B2 (ko) |
JP (1) | JP4332756B2 (ko) |
KR (1) | KR100923615B1 (ko) |
CN (1) | CN101469626B (ko) |
DE (1) | DE102008056392B4 (ko) |
FR (1) | FR2926595B1 (ko) |
RU (1) | RU2410550C2 (ko) |
Families Citing this family (48)
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DE202008001547U1 (de) | 2007-07-24 | 2008-04-10 | Emcon Technologies Germany (Augsburg) Gmbh | Baugruppe zur Einbringung eines Reduktionsmittels in die Abgasleitung einer Abgasanlage einer Verbrennungskraftmaschine |
JP5141900B2 (ja) * | 2008-07-30 | 2013-02-13 | 三菱自動車工業株式会社 | 排気浄化装置 |
US8079211B2 (en) * | 2008-11-06 | 2011-12-20 | Ford Global Technologies, Llc | Bypass purge for protecting against formation of reductant deposits |
EP2366063B1 (en) * | 2008-11-13 | 2018-09-12 | Donaldson Company, Inc. | Injector mounting configuration for an exhaust treatment system |
FR2949813B1 (fr) * | 2009-09-10 | 2011-10-07 | Faurecia Sys Echappement | Ligne d'echappement de vehicule automobile avec un injecteur de reactif |
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KR101343931B1 (ko) | 2010-03-24 | 2013-12-20 | 가부시키가이샤 아이에이치아이 | 버너 장치 |
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JP5510656B2 (ja) * | 2010-07-08 | 2014-06-04 | 三菱自動車工業株式会社 | 排気浄化装置 |
DE102010045751B4 (de) * | 2010-09-17 | 2017-02-16 | Friedrich Boysen Gmbh & Co. Kg | Abgasanlage einer Brennkraftmaschine |
FR2965011B1 (fr) * | 2010-09-21 | 2012-09-28 | Peugeot Citroen Automobiles Sa | Dispositif d'introduction d'un fluide dans une ligne d'echappement, ensemble et vehicule automobile comportant un tel dispositif |
DE102010043735A1 (de) * | 2010-11-11 | 2012-05-16 | Robert Bosch Gmbh | Einspritzdüse |
US8756921B2 (en) * | 2011-01-10 | 2014-06-24 | Paccar Inc | Reductant delivery device |
DE102011018770A1 (de) * | 2011-04-27 | 2012-11-15 | Daimler Ag | Abgasanlage für einen Kraftwagen und Verfahren zum Betreiben einer Abgasanlage |
DE102011077155C5 (de) | 2011-06-07 | 2022-04-14 | Robert Bosch Gmbh | Abgasanlage |
JP5561486B2 (ja) * | 2011-06-16 | 2014-07-30 | 三菱自動車工業株式会社 | 排気浄化装置 |
SE539038C2 (sv) * | 2011-10-20 | 2017-03-28 | Scania Cv Ab | Grenrör för mottagning av avgaser från en flercylindrig förbränningsmotor |
JP6053096B2 (ja) | 2012-01-12 | 2016-12-27 | 日野自動車株式会社 | 排気浄化装置 |
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