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1. WO2018147369 - EXHAUST GAS CLEANING DEVICE

Publication Number WO/2018/147369
Publication Date 16.08.2018
International Application No. PCT/JP2018/004392
International Filing Date 08.02.2018
IPC
F01N 3/08 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
F01N 3/20 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
18characterised by methods of operation; Control
20specially adapted for catalytic conversion
F01N 3/28 2006.01
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL-COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
24characterised by constructional aspects of converting apparatus
28Construction of catalytic reactors
CPC
F01N 3/08
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
F01N 3/20
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
18characterised by methods of operation; Control
20specially adapted for catalytic conversion
F01N 3/28
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
01MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
NGAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
3Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
08for rendering innocuous
10by thermal or catalytic conversion of noxious components of exhaust
24characterised by constructional aspects of converting apparatus
28Construction of catalytic reactors
Y02A 50/20
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
50in human health protection, e.g. against extreme weather
20Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
Y02T 10/12
YSECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
10Road transport of goods or passengers
10Internal combustion engine [ICE] based vehicles
12Improving ICE efficiencies
Applicants
  • エヌ・イーケムキャット株式会社 N.E. CHEMCAT CORPORATION [JP]/[JP]
  • 独立行政法人自動車技術総合機構 NATIONAL AGENCY FOR AUTOMOBILE AND LAND TRANSPORT TECHNOLOGY [JP]/[JP]
Inventors
  • 岡島 利典 OKAJIMA, Toshinori
  • 永田 誠 NAGATA, Makoto
  • 奥井 伸宜 OKUI, Nobunori
  • 山口 恭平 YAMAGUCHI, Kyohei
Agents
  • 稲葉 良幸 INABA, Yoshiyuki
  • 内藤 和彦 NAITO, Kazuhiko
  • 岡野 聡二郎 OKANO, Sojiro
Priority Data
2017-02237209.02.2017JP
2017-06606329.03.2017JP
Publication Language Japanese (JA)
Filing Language Japanese (JA)
Designated States
Title
(EN) EXHAUST GAS CLEANING DEVICE
(FR) DISPOSITIF DE PURIFICATION DE GAZ D'ÉCHAPPEMENT
(JA) 排ガス浄化装置
Abstract
(EN)
Provided are, inter alia, an exhaust gas cleaning device making it possible to reduce the amount of NOx exhaust produced during a cold start. An exhaust gas cleaning device 100 is provided, in an exhaust channel 51, with a urea injection valve 83, a metal honeycomb 91, a temperature sensor S3, and an SCR catalyst 73. The exhaust gas temperature of exhaust gas passing through the metal honeycomb 91 can be elevated by the metal honeycomb 91, which can be heated electrically by control by a control unit ECU, and such temperature is detected by the temperature sensor S3. Ammonia has been adsorbed in advance onto the metal honeycomb 91 and the SCR catalyst 73 on the basis of a temperature–adsorbed ammonia quantity profile which is stored in advance in a storage unit of the control unit ECU. The metal honeycomb 91 is heated electrically during a cold start after the temperature detected by the temperature sensor S3 has fallen below 150°C.
(FR)
L'invention concerne, entre autres, un dispositif de purification de gaz d'échappement permettant de réduire la quantité d'échappement de NOx produit pendant un démarrage à froid. Un dispositif de purification de gaz d'échappement 100 est pourvu, dans un canal d'échappement 51, d'une soupape d'injection d'urée 83, d'une alvéole métallique 91, d'un capteur de température S3, et d'un catalyseur SCR 73. La température des gaz d'échappement de gaz d'échappement traversant l'alvéole métallique 91 peut être élevée par l'alvéole métallique 91, qui peut être chauffée électriquement par commande par une ECU d'unité de commande, et une telle température est détectée par le capteur de température S3. De l'ammoniac a été adsorbé à l'avance sur l'alvéole métallique 91 et le catalyseur SCR 73 sur la base d'un profil de quantité d'ammoniac adsorbé à la température qui est stocké à l'avance dans une unité de stockage de l'ECU d'unité de commande. L'alvéole métallique 91 est chauffée électriquement pendant un démarrage à froid après que la température détectée par le capteur de température S3 a chuté sous 150 °C.
(JA)
コールドスタート時に発生するNOx排出量を削減可能な排ガス浄化装置等を提供する。排ガス浄化装置100は、排気路51中に、尿素噴射弁83、メタルハニカム91、温度センサS3及びSCR触媒73を備えている。メタルハニカム91を通過する排ガスの排ガス温度は、制御部ECUの制御により電気的に加熱可能されたメタルハニカム91により昇温可能となっており、温度センサS3により検出される。そして、制御部ECUの記憶部に予め記憶された温度-アンモニア吸着量プロファイルに基づいて、メタルハニカム91及びSCR触媒73にアンモニアを予吸着させておき、温度センサS3により検出される温度が150℃を下回った後のコールドスタート時にメタルハニカム91を電気加熱する。
Also published as
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