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    Angled and compact exhaust gas aftertreatment device
    4.
    发明授权
    Angled and compact exhaust gas aftertreatment device 有权
    角和紧凑的排气处理装置

    公开(公告)号：EP2960456B1

    公开(公告)日：2017-04-12

    申请号：EP14174777.4

    申请日：2014-06-27

    Applicant: Volvo Car Corporation

    Inventor： Sandberg, Peter ,  Stenfeldt, Marie

    IPC: F01N13/00 ,  F01N3/20 ,  F01N3/28 ,  B01D53/94 ,  F01N3/10

    CPC classification number: F01N3/2892 ,  B01D53/9477 ,  B01D2255/904 ,  F01N3/108 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0097 ,  F01N2240/20 ,  F01N2470/24 ,  F01N2490/06 ,  F01N2510/06 ,  F01N2610/1453 ,  Y02A50/2325 ,  Y02T10/24

    Abstract: An exhaust gas aftertreatment device for an internal combustion engine (ICE) comprising a housing, a first and a second catalytic substrate and a reductant injector. Said first and second substrates are arranged inside said housing such that said first catalytic substrate is arranged upstream of said second catalytic substrate. Said reductant injector is arranged in between said first and said second catalytic substrate. Further, said first and second catalytic substrates are arranged such that a fluid flow direction through said exhaust gas aftertreatment device is angled. A flow redirecting wall is arranged downstream of said first catalytic substrate such that said fluid flow between said first catalytic substrate and said second catalytic substrate at least partially passes an outer circumference of said first catalytic substrate before reaching said second catalytic substrate. Said redirecting wall is inclined to an outlet surface of said first catalytic substrate and said reductant injector is arranged at said redirecting wall at a position distant from said outlet surface.

    EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE
    10.
    发明公开
    EXHAUST PURIFICATION APPARATUS FOR INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化装置

    公开(公告)号：EP2730759A1

    公开(公告)日：2014-05-14

    申请号：EP11869009.8

    申请日：2011-07-04

    Applicant: Toyota Jidosha Kabushiki Kaisha

    Inventor： NAKANO, Takanori ,  KATAYAMA, Haruyuki ,  HIROTA, Shinya ,  TOSHIOKA, Shunsuke ,  FUKUDA, Koichiro

    IPC: F01N3/02 ,  B01D53/94 ,  F01N3/08 ,  F01N3/24

    CPC classification number: B01D53/9459 ,  B01D53/9431 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2255/904 ,  F01N3/035 ,  F01N3/108 ,  F01N3/2066 ,  F01N13/008 ,  F01N13/009 ,  F01N13/0093 ,  F01N2560/05 ,  F01N2610/02 ,  Y02T10/24

    Abstract: The purpose of the present invention is to suppress degradation of a PM sensor and a decrease in detection accuracy of the amount of PM in a configuration in which a urea addition unit and a selective reduction-type NOx catalyst (NOx catalyst) are provided downstream of a particulate filter (filter) in an internal combustion engine exhaust passage, the PM sensor being disposed downstream of the filter. According to the present invention, in an exhaust passage (2) of an internal combustion engine (1), a first NOx catalyst (4) and a second NOx catalyst (5) are disposed downstream of a filter (3) successively from the upstream side along the flow of exhaust. A urea addition unit (6) is disposed between the filter (3) and the first NOx catalyst (4). A PM sensor (7) is disposed between the first NOx catalyst (4) and the second NOx catalyst (5).

    Abstract translation: 本发明的目的是在设置尿素添加单元和选择还原型NOx催化剂（NOx催化剂）的构造中，抑制PM传感器的劣化和PM量的检测精度的降低 内燃机排气通道中的微粒过滤器（过滤器），PM传感器设置在过滤器的下游。 根据本发明，在内燃机（1）的排气通路（2）中，第一NOx催化剂（4）和第二NOx催化剂（5）从上游侧依次配置在过滤器（3）的下游侧 沿着排气流。 尿素添加单元（6）设置在过滤器（3）和第一NOx催化剂（4）之间。 PM传感器（7）设置在第一NOx催化剂（4）和第二NOx催化剂（5）之间。

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