Integrated NOx trap and particulate filter for internal combustion engines
    2.
    发明申请
    Integrated NOx trap and particulate filter for internal combustion engines 失效
    内燃机集成式NOx捕集器和微粒过滤器

    公开(公告)号:US20050053534A1

    公开(公告)日:2005-03-10

    申请号:US10658494

    申请日:2003-09-08

    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)。

    Intermittent application of syngas to NOx trap and/or diesel engine
    3.
    发明申请
    Intermittent application of syngas to NOx trap and/or diesel engine 失效
    间歇地将合成气施加到NOx捕集器和/或柴油发动机

    公开(公告)号:US20050086931A1

    公开(公告)日:2005-04-28

    申请号:US10691794

    申请日:2003-10-23

    摘要: A catalytic partial oxidizer (30) provides syngas (hydrogen and carbon monoxide) to an apparatus intermittently using syngas such as valves (34) feeding NOx traps (35), for brief periods of time. During turndown times when syngas is not being used, either the output of the CPO is diverted (33) to the inlet (13) of an engine (12) through the engine gas recycle (EGR) system (43-46), or the amount of fuel (19) and exhaust (23) applied to the CPO is reduced (24, 26; 59, 60) so that the CPO merely stays warm and in a reduced state, thereby being ready to restart immediately. A mini-CPO (62) may provide syngas and heat to the major CPO (30) during the turndown time when syngas is not being used by the NOx traps.

    摘要翻译: 催化部分氧化器(30)使用诸如供给NOx捕集器(35)的阀(34)等合成气短暂的时间间歇地向设备提供合成气(氢气和一氧化碳)。 在没有使用合成气的调节时间期间,CPO的输出通过发动机气体循环(EGR)系统(43-46)被转向(33)到发动机(12)的入口(13),或者 施加到CPO的燃料量(19)和排气(23)减少(24,26; 59,60),使得CPO仅保持暖和处于降低状态,从而立即准备重新启动。 当合成气不被NOx捕集器使用时,小型CPO(62)可以在调节时间期间向主要CPO(30)提供合成气和热量。