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    EXHAUST SYSTEM
    63.
    发明公开
    EXHAUST SYSTEM 审中-公开
    排气系统

    公开(公告)号：EP2917522A1

    公开(公告)日：2015-09-16

    申请号：EP13795284.2

    申请日：2013-11-07

    Applicant: Johnson Matthey Public Limited Company

    Inventor： CHIFFEY, Andrew Francis ,  PRENDERGAST, Cathal Francis

    IPC: F01N3/10 ,  F01N3/20 ,  F01N3/035 ,  B01D53/94

    CPC classification number: B01D53/94 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1025 ,  B01D2255/20707 ,  B01D2255/20723 ,  B01D2255/20776 ,  B01D2255/50 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0093 ,  F01N2240/40 ,  F01N2510/068 ,  F01N2510/0682 ,  Y02T10/24

    Abstract: An exhaust system, and a catalyzed substrate, is disclosed. The system comprises a catalyzed substrate, a counterflow urea injector downstream of the catalyzed substrate, and a first selective catalytic reduction (SCR) catalyst downstream of the counterflow injector. The catalyzed substrate has an inlet end, an outlet end, an axial length extending from the inlet to the outlet, an inlet zone extending from the inlet, and an outlet zone extending from the outlet. The inlet zone comprises an oxidation catalyst and the outlet zone comprises a catalyst selected from the group consisting of a urea hydrolysis catalyst and a second SCR catalyst. The counterflow urea injector directs urea toward the outlet zone of the catalyzed substrate so that at least a portion of the urea contacts the outlet zone prior to contacting the first SCR catalyst.

    Abstract translation: 公开了排气系统和催化基底。 该系统包括催化底物，催化底物下游的逆流尿素喷射器，以及逆流喷射器下游的第一选择性催化还原（SCR）催化剂。 催化的基材具有入口端，出口端，从入口延伸到出口的轴向长度，从入口延伸的入口区域和从出口延伸的出口区域。 入口区包含氧化催化剂，出口区包含选自尿素水解催化剂和第二SCR催化剂的催化剂。 逆流式尿素喷射器引导尿素朝向催化基底的出口区，使得至少一部分尿素在接触第一SCR催化剂之前接触出口区。

    EXHAUST GAS AFTER-TREATMENT APPARATUS HAVING IMPROVED DURABILITY AND EXHAUST GAS AFTER-TREATMENT METHOD
    65.
    发明公开
    EXHAUST GAS AFTER-TREATMENT APPARATUS HAVING IMPROVED DURABILITY AND EXHAUST GAS AFTER-TREATMENT METHOD 有权
    ABGASNACHBEHANDLUNGSVORRICHTUNG MIT VERBESSERTER HALTBARKEIT UND ABGASNACHBEHANDLUNGSVERFAHREN

    公开(公告)号：EP2799678A4

    公开(公告)日：2015-08-19

    申请号：EP12861341

    申请日：2012-12-17

    Applicant: DOOSAN INFRACORE CO LTD

    Inventor： LIM JI HOON ,  KO MINSEOK ,  OH BYOUNGGUL ,  PARK KYUNGMIN ,  KIM SANGHOON

    IPC: F01N3/20 ,  B01D53/94 ,  F01N3/035

    CPC classification number: B01D53/8631 ,  B01D53/869 ,  B01D53/8696 ,  B01D53/9418 ,  B01D53/9436 ,  B01D53/944 ,  B01D53/9477 ,  B01D53/9495 ,  F01N3/0231 ,  F01N3/106 ,  F01N3/2053 ,  F01N3/2066 ,  F01N11/00 ,  F01N2550/02 ,  F01N2560/026 ,  F01N2560/14 ,  F01N2570/18 ,  F01N2610/02 ,  Y02T10/24

    Abstract: The present disclosure relates to an exhaust gas after-treatment apparatus having improved durability, which includes: an exhaust gas oxidation catalyst part which oxidizes exhaust gas; an exhaust gas filtering part which is connected to the exhaust gas oxidation catalyst part, and filters the exhaust gas; a selective catalyst reducing part which is connected to the exhaust gas filtering part; and an ammonia oxidation catalyst part which is connected to the selective catalyst reducing part, in which a first gas detection sensor for detecting a generated amount of nitrogen compound in the exhaust gas flowing from the exhaust gas filtering part, and a selective catalyst reducing bypass valve for selectively blocking the exhaust gas from flowing into the selective catalyst reducing part are installed at a front side of the selective catalyst reducing part, and the exhaust gas after-treatment apparatus includes a control part which is electrically connected so as to control whether to operate the selective catalyst reducing bypass valve and the selective catalyst reducing part on the basis of a gas amount detection signal.

    Abstract translation: 本公开涉及具有改善的耐久性的废气后处理装置，其包括：废气排放废气的废气氧化催化剂部分; 废气过滤部，其与废气氧化催化剂部连接，对废气进行过滤; 选择性催化剂还原部分，其连接到废气过滤部分; 以及与选择性催化剂还原部连接的氨氧化催化剂部，其中，用于检测从排气过滤部流出的排气中的氮化合物的产生量的第一气体检测传感器和选择性催化剂还原旁通阀 用于选择性阻挡废气流入选择性催化剂还原部分的装置安装在选择性催化剂还原部分的前侧，废气后处理装置包括电连接的控制部分，以控制是否操作 基于气体量检测信号选择性催化剂还原旁通阀和选择性催化剂还原部分。

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