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    APPARATUS FOR AFTER-TREATMENT OF EXHAUST FROM DIESEL ENGINE
    2.
    发明申请
    APPARATUS FOR AFTER-TREATMENT OF EXHAUST FROM DIESEL ENGINE 审中-公开
    用于柴油发动机后处理废气的装置

    公开(公告)号：US20110047989A1

    公开(公告)日：2011-03-03

    申请号：US12621993

    申请日：2009-11-19

    Applicant: Jin Woo CHOUNG

    Inventor： Jin Woo CHOUNG

    IPC: F01N3/10

    CPC classification number: B01D53/944 ,  B01D53/9418 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/1021 ,  B01D2255/1023 ,  B01D2255/1026 ,  B01D2255/20738 ,  B01D2255/20761 ,  B01D2255/50 ,  B01D2258/012 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2066 ,  F01N13/009 ,  F01N2370/04 ,  F01N2610/02 ,  Y02A50/2341 ,  Y02T10/24

    Abstract: An apparatus for after-treatment of exhaust gas from a diesel engine may include a Diesel Particulate Filter (DPF) located upstream of an exhaust pipe connected to an engine exhaust manifold, a Diesel Oxidation Catalyst (DOC) located downstream of the diesel particulate filter, and an ammonia Selective Catalyst Reduction (SCR) catalyst located downstream of the diesel oxidation catalyst, wherein the ammonia SCR catalyst is made of zeolite. The DOC has a carrier containing a single active material of Ru or a composite active material of Pt and Ru, and the weight ratio of Pt to Ru is 2:1 or less. The apparatus can efficiently remove pollutants such as hydrocarbons and CO in the exhaust, naturally regenerate the DPF by burning off particulate matter, and maximize the ability of the ammonia SCR catalyst to remove NOx by increasing the amount of NO2 among NOx in the exhaust entering the ammonia SCR catalyst.

    Abstract translation: 用于后处理来自柴油发动机的废气的设备可以包括位于连接到发动机排气歧管的排气管上游的柴油微粒过滤器（DPF），位于柴油机微粒过滤器下游的柴油氧化催化剂（DOC） 和位于柴油机氧化催化剂下游的氨选择性催化还原（SCR）催化剂，其中氨SCR催化剂由沸石制成。 DOC具有含有Ru的单一活性物质或Pt和Ru的复合活性物质的载体，Pt与Ru的重量比为2:1以下。 该装置可以有效地去除废气中的烃类和CO等污染物，通过燃烧颗粒物质自然地再生DPF，并且通过增加进入废气的排气中的NO x中的NO 2的量来最大化氨SCR催化剂去除NOx的能力 氨SCR催化剂。

    EXHAUST GAS PURIFYING FILTER, SYSTEM OF REGENERATING GASOLINE PARTICULATE FILTER, AND METHOD THEREOF
    5.
    发明申请
    EXHAUST GAS PURIFYING FILTER, SYSTEM OF REGENERATING GASOLINE PARTICULATE FILTER, AND METHOD THEREOF 审中-公开
    废气净化过滤器，再生汽油颗粒过滤器系统及其方法

    公开(公告)号：US20130095002A1

    公开(公告)日：2013-04-18

    申请号：US13534823

    申请日：2012-06-27

    Applicant: Chibum In ,  Jin Woo Choung

    Inventor： Chibum In ,  Jin Woo Choung

    IPC: B01D50/00 ,  B01J20/34

    CPC classification number: F01N3/0231 ,  F01N3/0814 ,  F01N3/101 ,  F01N3/2073 ,  F01N13/0097 ,  F01N2370/04 ,  F01N2430/06 ,  F01N2570/18 ,  F02D41/029 ,  Y02T10/22

    Abstract: An exhaust gas purifying filter, a system for regenerating a particulate filter, and a method therefore are disclosed. An exhaust gas purifying filter may include: an ammonia storage catalyst unit adapted to absorb ammonia contained in the exhaust gas when a temperature of the ammonia storage catalyst unit is lower than a predetermined temperature, release the absorbed ammonia when the temperature of the ammonia storage catalyst unit is higher than or equal to the predetermined temperature, and generate nitrogen oxide from the released ammonia; and a particulate filter adapted to trap particulate matter contained in the exhaust gas and regenerate the trapped particulate matter by using the nitrogen oxide generated from the ammonia storage catalyst unit.

    Abstract translation: 公开了一种废气净化过滤器，用于再生微粒过滤器的系统及其方法。 废气净化过滤器可以包括：当氨储存催化剂单元的温度低于预定温度时适于吸收废气中所含的氨的氨储存催化剂单元，当氨储存催化剂的温度 单位高于或等于预定温度，并从释放的氨中产生氮氧化物; 以及微粒过滤器，其适于捕集包含在排气中的颗粒物质，并且通过使用由氨储存催化剂单元产生的氮氧化物来再生所捕获的颗粒物质。

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