Internal combustion engine exhaust treatment having a single valve directing exhaust to dual NOx traps
    1.
    发明授权
    Internal combustion engine exhaust treatment having a single valve directing exhaust to dual NOx traps 失效
    具有将排气引导到双NOx捕集器的单个阀的内燃机排气处理

    公开(公告)号:US08136345B2

    公开(公告)日:2012-03-20

    申请号:US10946206

    申请日:2004-09-21

    IPC分类号: F01N3/00

    摘要: A single valve (23, 50) directs engine exhaust (11, 12) toward alternative NOx traps (19, 20) which are adjacent to either diesel particulate filters (40, 41) or low temperature water gas shift catalysts (63, 64). Syngas is either provided from a source (54) or by in-line catalytic partial oxidizers (23, 24) which may have diesel oxidation catalysts ahead of them in the flow and which receive fuel from the engine fuel source (26) through nozzles (27, 28).

    摘要翻译: 单个阀门(23,50)将发动机排气(11,12)引向与柴油机微粒过滤器(40,41)或低温水煤气变换催化剂(63,64)相邻的替代NOx捕集器(19,20) 。 合成气可以由源(54)或直列催化部分氧化器(23,24)提供,其可以在流动中具有柴油氧化催化剂,并且通过喷嘴(...)从发动机燃料源(26)接收燃料 27,28)。

    Method of reducing NOx and particulates from internal combustion engines
    2.
    发明授权
    Method of reducing NOx and particulates from internal combustion engines 失效
    减少内燃机NOx和微粒的方法

    公开(公告)号:US07601316B2

    公开(公告)日:2009-10-13

    申请号:US10658494

    申请日:2003-09-08

    IPC分类号: B01D53/86

    摘要: Oxides of nitrogen are adsorbed onto the surfaces of, and particulates are trapped in, pores of channels (130, 133, 139-151) in a porous, interdigitated ceramic particulate filter (57, 100) that has relative rotation with respect to a gas inlet distributor (76, 101). The distributor has a baffle (85) or ribs (121, 122) that causes constantly flowing engine exhaust (53) to enter the filter channels over a large portion of a revolution of the adsorption bed or the distributor, and causes constantly flowing syngas (54) to thereafter pass through those passages during a small portion of each revolution. Either the inlet gas distributor (101) or the filter bed (57) may be rotated to distribute the gases. Dual, alternately regenerated filters (35, 36) may be used.

    摘要翻译: 氮的氧化物被吸附在多孔的交错陶瓷颗粒过滤器(57,100)中,并且颗粒被捕获在通道(130,133,139-151)的孔中,所述多孔,交错的陶瓷颗粒过滤器(57,100)相对于气体具有相对旋转 入口分配器(76,101)。 分配器具有挡板(85)或肋(121,122),其导致不断流动的发动机排气(53)在吸附床或分配器的大部分旋转周围进入过滤器通道,并导致不断流动的合成气( 54)之后在每一圈的一小部分期间通过这些通道。 入口气体分配器(101)或过滤床(57)可以旋转以分配气体。 可以使用双重交替再生过滤器(35,36)。