Exhaust system promoting decomposition of reductants into gaseous products
    5.
    发明申请
    Exhaust system promoting decomposition of reductants into gaseous products 审中-公开
    促进还原剂分解成气态产物的排气系统

    公开(公告)号:US20100146948A1

    公开(公告)日:2010-06-17

    申请号:US12337128

    申请日:2008-12-17

    IPC分类号: F01N3/20

    摘要: An engine exhaust treatment system. The treatment system includes and a reductant injector adapted to deliver a reductant composition into an exhaust stream moving along an exhaust flow path. A selective catalytic reduction device is disposed downstream from the reductant injector. The selective catalytic reduction device is adapted to reduce an amount of NOx in exhaust gases produced by an engine by reaction of the NOx with ammonia. A basic and/or amphoteric oxide contact surface is disposed along the exhaust flow path.

    摘要翻译: 发动机排气处理系统。 处理系统包括和还原剂喷射器,其适于将还原剂组合物输送到沿排气流动路径移动的排气流中。 选择性催化还原装置设置在还原剂注入器的下游。 选择性催化还原装置适于通过NOx与氨的反应来减少由发动机产生的废气中的NOx的量。 碱性和/或两性氧化物接触表面沿排气流路设置。

    Engine system having particulate reduction device and method
    8.
    发明授权
    Engine system having particulate reduction device and method 有权
    具有微粒减少装置和方法的发动机系统

    公开(公告)号:US08082730B2

    公开(公告)日:2011-12-27

    申请号:US12154068

    申请日:2008-05-20

    IPC分类号: F01N3/022

    摘要: An internal combustion engine system includes an engine having an engine housing. The engine system further includes an exhaust system, and a turbine disposed within the exhaust system. A particulate reduction device is disposed in the exhaust system upstream of the turbine. The particulate reduction device includes an exhaust retarder having a flow property which is based at least in part on a residence requirement for combustion of particulates in exhaust gases passing therethrough. The flow property may be a flow restriction property, and the exhaust retarder may include a flow restricting trapping element configured to trap particulates in the exhaust gases. The flow restricting trapping element defines a combustion efficacy to exhaust mass flow and temperature coefficient for the particulate reduction device which is based at least in part on a combustion initiating residence requirement for particulates passing through the particulate reduction device.

    摘要翻译: 内燃机系统包括具有发动机壳体的发动机。 发动机系统还包括排气系统和设置在排气系统内的涡轮机。 在涡轮机上游的排气系统中设置有微粒减少装置。 颗粒减少装置包括具有至少部分地基于用于燃烧通过其中的废气中的颗粒的停留要求的流动性的排气延迟器。 流动性可以是流量限制性质,并且排气延迟器可以包括被配置为捕集排气中的微粒的流动限制捕获元件。 流动限制捕集元件限定燃烧效率以排出颗粒减少装置的质量流量和温度系数,其至少部分地基于通过颗粒减少装置的颗粒的燃烧起始停留要求。

    Engine system having particulate reduction device and method
    9.
    发明申请
    Engine system having particulate reduction device and method 有权
    具有微粒减少装置和方法的发动机系统

    公开(公告)号:US20090288392A1

    公开(公告)日:2009-11-26

    申请号:US12154068

    申请日:2008-05-20

    IPC分类号: F01N3/022 F02B3/00

    摘要: An internal combustion engine system includes an engine having an engine housing. The engine system further includes an exhaust system, and a turbine disposed within the exhaust system. A particulate reduction device is disposed in the exhaust system upstream of the turbine. The particulate reduction device includes an exhaust retarder having a flow property which is based at least in part on a residence requirement for combustion of particulates in exhaust gases passing therethrough. The flow property may be a flow restriction property, and the exhaust retarder may include a flow restricting trapping element configured to trap particulates in the exhaust gases. The flow restricting trapping element defines a combustion efficacy to exhaust mass flow and temperature coefficient for the particulate reduction device which is based at least in part on a combustion initiating residence requirement for particulates passing through the particulate reduction device.

    摘要翻译: 内燃机系统包括具有发动机壳体的发动机。 发动机系统还包括排气系统和设置在排气系统内的涡轮机。 在涡轮机上游的排气系统中设置有微粒减少装置。 颗粒减少装置包括具有至少部分地基于用于燃烧通过其中的废气中的颗粒的停留要求的流动性的排气延迟器。 流动性可以是流量限制性质,并且排气延迟器可以包括被配置为捕集排气中的微粒的流动限制捕获元件。 流动限制捕集元件限定燃烧效率以排出颗粒减少装置的质量流量和温度系数,其至少部分地基于通过颗粒减少装置的颗粒的燃烧起始停留要求。

    Particulate filter
    10.
    发明申请
    Particulate filter 审中-公开
    颗粒过滤器

    公开(公告)号:US20070122319A1

    公开(公告)日:2007-05-31

    申请号:US11479723

    申请日:2006-06-30

    IPC分类号: B01D50/00 B21D51/16 B01D53/34

    摘要: A particulate filter and a method for reducing pollutants are provided. The particulate filter comprises at least one first piece, said first piece comprising non-linear channels, and at least one second piece adjacent to the at least one first piece. The particulate filter is configured such that either the at least one first piece or the at least one second piece comprise either sintered metal fibers or porous metallic foam. The method comprises the steps of providing a particulate filter, said filter comprising, at least one first piece, said first piece comprising non-linear channels and at least one second piece adjacent to the at least one first piece, catalyzing the particulate filter with a catalyst, passing exhaust stream through the filter, filtering at least some soot from the exhaust stream, and chemically converting at least some NOx from the exhaust stream with the catalyst.

    摘要翻译: 提供了一种微粒过滤器和一种减少污染物的方法。 颗粒过滤器包括至少一个第一件,所述第一件包括非线性通道,以及与所述至少一个第一件相邻的至少一个第二件。 颗粒过滤器被构造成使得至少一个第一部件或至少一个第二部件包括烧结金属纤维或多孔金属泡沫。 该方法包括以下步骤:提供颗粒过滤器,所述过滤器包括至少一个第一件,所述第一件包括非线性通道和与所述至少一个第一件相邻的至少一个第二件,用一个 催化剂,使废气流通过过滤器,从废气流中过滤至少一些烟灰,以及用催化剂化学转化来自废气流的至少一些NOx。