Engine emission control system
    35.
    发明授权
    Engine emission control system 有权
    发动机排放控制系统

    公开(公告)号:US08273315B2

    公开(公告)日:2012-09-25

    申请号:US12853075

    申请日:2010-08-09

    IPC分类号: B01D53/94 B01J35/04 F01N3/28

    摘要: Systems and methods are provided for reducing exhaust NOx species using a monolith substrate having a plurality of channels configured with radially varying cell density. An injector injects reductant into the substrate unobstructedly, without use of a mixer. In some embodiments, a twist angle of the channels is based on a distance from an inlet of the substrate and varies exponentially as a function of the distance.

    摘要翻译: 提供的系统和方法用于使用具有配置有径向变化的单元密度的多个通道的单块基板来减少废气NOx种类。 注射器将还原剂无阻碍地注入衬底中,而不使用混合器。 在一些实施例中,通道的扭转角基于距离基板的入口的距离,并且随距离的函数而呈指数变化。

    ENGINE EMISSION CONTROL SYSTEM
    37.
    发明申请
    ENGINE EMISSION CONTROL SYSTEM 有权
    发动机排放控制系统

    公开(公告)号:US20110162348A1

    公开(公告)日:2011-07-07

    申请号:US12853075

    申请日:2010-08-09

    IPC分类号: F01N3/00 F01N3/10

    摘要: Systems and methods are provided for reducing exhaust NOx species using a monolith substrate having a plurality of channels configured with radially varying cell density. The configuration enables radial reductant mixing, thereby improving mixing and atomization of an injected reductant with an exhaust gas stream.

    摘要翻译: 提供的系统和方法用于使用具有配置有径向变化的单元密度的多个通道的单块基板来减少废气NOx种类。 该配置使得能够进行径向还原剂混合,从而改善注入的还原剂与废气流的混合和雾化。