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1. (WO2019003895) EXHAUST GAS PURIFICATION SYSTEM
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Pub. No.: WO/2019/003895 International Application No.: PCT/JP2018/022398
Publication Date: 03.01.2019 International Filing Date: 12.06.2018
IPC:
F01N 3/24 (2006.01) ,F01N 3/08 (2006.01) ,F01N 13/08 (2010.01)
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
10
by thermal or catalytic conversion of noxious components of exhaust
24
characterised by constructional aspects of converting apparatus
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3
Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08
for rendering innocuous
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01
MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
N
GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
13
Exhaust or silencing apparatus characterised by constructional features
08
Other arrangements or adaptations of exhaust conduits
Applicants:
いすゞ自動車株式会社 ISUZU MOTORS LIMITED [JP/JP]; 東京都品川区南大井6丁目26番1号 6-26-1, Minami-Oi, Shinagawa-ku, Tokyo 1408722, JP
Inventors:
景山 遊大 KAGEYAMA, Yuuta; JP
上田 悠貴 UEDA, Yuuki; JP
Agent:
鷲田 公一 WASHIDA, Kimihito; JP
Priority Data:
2017-12724329.06.2017JP
Title (EN) EXHAUST GAS PURIFICATION SYSTEM
(FR) SYSTÈME DE PURIFICATION DE GAZ D’ÉCHAPPEMENT
(JA) 排気ガス浄化システム
Abstract:
(EN) Provided is an exhaust gas purification system capable of performing desired exhaust gas purification treatment by preventing the deposition of white products. This exhaust gas purification system is configured to comprise, in an exhaust pipe constituting an exhaust path of an internal combustion engine, a selective reducing-type catalyst device and a reducing agent injector which injects a reducing agent. A flexure section provided with the reducing agent injector is formed upstream of the selective reducing-type catalyst device in the exhaust pipe in the flow direction of an exhaust gas passing through the exhaust pipe, an inner pipe having a smaller inner diameter than the exhaust pipe is disposed upstream of the flexure section of the exhaust pipe, and a gap through which the exhaust gas passes is provided between the exhaust pipe and the inner pipe.
(FR) L'invention concerne un système de purification de gaz d'échappement capable d'effectuer un traitement de purification de gaz d'échappement souhaité tout en empêchant le dépôt de produits blancs. Ce système de purification de gaz d'échappement est configuré pour comprendre, dans un tuyau d'échappement constituant un trajet d'échappement d'un moteur à combustion interne, un dispositif catalyseur de type à réduction sélective et un injecteur d'agent réducteur qui injecte un agent réducteur. Une section de courbure pourvue de l'injecteur d'agent réducteur est formée en amont du dispositif catalyseur de type à réduction sélective dans le tuyau d'échappement dans la direction d'écoulement d'un gaz d'échappement passant à travers le tuyau d'échappement, un tuyau interne ayant un diamètre interne plus petit que le tuyau d'échappement est disposé en amont de la section de courbure du tuyau d'échappement, et un espace à travers lequel passe le gaz d'échappement est disposé entre le tuyau d'échappement et le tuyau interne.
(JA) 白色生成物の堆積を防止して所望の排気ガス浄化処理を実施することが可能な排気ガス浄化システム。排気ガス浄化システムは、内燃機関の排気通路を構成する排気管に、選択還元型触媒装置と、還元剤を噴射する還元剤インジェクタとを備えて構成される。排気管を通過する排気ガスの流れ方向において排気管のうち選択還元型触媒装置の上流側には、還元剤インジェクタが設けられた屈曲部が形成され、流れ方向において排気管のうち屈曲部の上流側には、当該排気管の内径よりも小さい内径を有する内管が配置されており、当該排気管と当該内管との間に前記排気ガスが通過する隙間を有する。
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Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DJ, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IR, IS, JO, KE, KG, KH, KN, KP, KR, KW, KZ, LA, LC, LK, LR, LS, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SA, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW
African Regional Intellectual Property Organization (ARIPO) (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, ST, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, RU, TJ, TM)
European Patent Office (EPO) (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG)
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)