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44 条记录 (耗时 0.02 秒)

    Exhaust gas post treatment system
    31.
    发明授权
    Exhaust gas post treatment system 有权
    废气后处理系统

    公开(公告)号：US07802419B2

    公开(公告)日：2010-09-28

    申请号：US11840127

    申请日：2007-08-16

    申请人： Andreas Döring

    发明人： Andreas Döring

    IPC分类号： F01N3/00

    CPC分类号： F01N3/2066 ,  F01N3/021 ,  F01N3/2053 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/0097 ,  F01N13/011 ,  F01N13/017 ,  F01N2240/40 ,  F01N2510/0682 ,  F01N2570/14 ,  F01N2610/02 ,  F02B37/00 ,  Y02A50/2344 ,  Y02T10/144 ,  Y02T10/24

    摘要： Exhaust gas post treatment system for nitrogen oxide reduction of internal combustion engines operated with excess air. A partial exhaust gas stream is branched off upstream of an SCR catalytic converter for reducing nitrogen oxides. A metering device delivers to the partial exhaust gas stream reduction agent, which is ammonia or a material that releases ammonia downstream of the supply location as a result of the hot exhaust gas. The partial exhaust gas stream is returned to the exhaust gas stream downstream of the supply location and upstream of the SCR catalytic converter, which reduces the 1J nitrogen oxides in the exhaust gas stream with the aid of the ammonia or released ammonia, by selective catalytic reduction, to nitrogen and water vapor. At engine operating conditions at which reversal of the exhaust gas stream toward the engine occurs, an oxidation catalytic converter, disposed in the partial exhaust gas stream upstream of the supply location for the reduction agent, oxidizes ammonia and/or reduction agent decomposition products that flow back.

    摘要翻译： 用过量空气运行的内燃机的氮氧化物还原废气后处理系统。 部分废气流在SCR催化转化器的上游分支，用于还原氮氧化物。 计量装置输送到部分废气流还原剂，其是氨或由于热废气导致在供应位置下游释放氨的材料。 部分排气流被返回到供应位置下游和SCR催化转化器上游的废气流，SCR催化转化器通过选择性催化还原而借助于氨或释放的氨来还原废气流中的氮氧化物， 到氮气和水蒸汽。 在发动机运转条件下，排气流朝向发动机发生，设置在用于还原剂的供应位置上游的部分废气流中的氧化催化转化器氧化流过的氨和/或还原剂分解产物 背部。

    Method and device for the regeneration of a particle filter arranged in the exhaust gas train of an internal combustion engine
    35.
    发明授权
    Method and device for the regeneration of a particle filter arranged in the exhaust gas train of an internal combustion engine 有权
    用于再生布置在内燃机的排气列中的颗粒过滤器的方法和装置

    公开(公告)号：US08268273B2

    公开(公告)日：2012-09-18

    申请号：US12539995

    申请日：2009-08-12

    申请人： Andreas Döring

    发明人： Andreas Döring

    IPC分类号： B01D47/00 ,  B01D53/34 ,  B01D53/56 ,  B01D53/94 ,  B01J8/00 ,  B01J38/04 ,  F01N3/00 ,  F01N3/20 ,  G05B1/00

    CPC分类号： F01N3/025

    摘要： A method and a device for the regeneration of a particle filter, especially a diesel particle filter, arranged in the exhaust gas train of an internal combustion engine, wherein an exhaust gas stream to be cleaned is supplied to the at least one particle filter. The exhaust gas stream supplied to the at least one particle filter is a raw exhaust gas stream of the internal combustion engine, into which, during regeneration mode, a heated exhaust gas stream at a higher temperature than the raw exhaust gas stream is mixed at a point upstream of the particle filter under the control of at least one open-loop and/or closed-loop control device, which actuates a throttle device and/or shut-off device in accordance with predetermined regeneration parameters.

    摘要翻译： 一种布置在内燃机的排气系中的颗粒过滤器，特别是柴油颗粒过滤器的再生方法和装置，其中待清洗的废气流被供给至少一个颗粒过滤器。 提供给至少一个颗粒过滤器的废气流是内燃机的原料排气流，在再生模式期间，在比原废气流更高的温度下加热的废气流在 在至少一个开环和/或闭环控制装置的控制下指向颗粒过滤器的上游，其根据预定的再生参数致动节流装置和/或关闭装置。

    Exhaust gas aftertreatment system
    37.
    发明授权
    Exhaust gas aftertreatment system 有权
    废气后处理系统

    公开(公告)号：US08176731B2

    公开(公告)日：2012-05-15

    申请号：US12150026

    申请日：2008-04-24

    申请人： Andreas Döring ,  Eberhard Jacob

    发明人： Andreas Döring ,  Eberhard Jacob

    IPC分类号： F01N3/10

    CPC分类号： F01N3/206 ,  B01D53/9418 ,  B01D53/944 ,  B01D53/9477 ,  B01D2251/2067 ,  B01D2255/20707 ,  B01D2255/20776 ,  B01D2255/2092 ,  B01D2255/30 ,  B01D2255/50 ,  B01D2255/808 ,  B01D2255/91 ,  B01D2257/404 ,  B01D2258/012 ,  B01D2258/014 ,  F01N3/021 ,  F01N3/035 ,  F01N3/106 ,  F01N3/2053 ,  F01N13/009 ,  F01N13/0097 ,  F01N13/011 ,  F01N2240/40 ,  F01N2330/60 ,  F01N2370/02 ,  F01N2610/02 ,  F02B37/00 ,  Y02T10/24

    摘要： Exhaust gas aftertreatment system for internal combustion engines operated with a lean mixture, wherein nitrogen oxides are reduced by an SCR catalyst, and particulates are removed by a particle separator or filter. A thermolysis catalyst is located near the engine in the exhaust gas split stream downstream of the supply point of the reducing agent. At temperatures above 135° C., this thermolysis catalyst vaporizes the water component of the aqueous urea solution. It contains a catalyst material that is thermally stable at exhaust gas temperatures occurring near the engine and preferentially reacts with the urea to form isocyanic acid. A hydrolysis catalyst is located in the exhaust gas stream downstream of the return of the split stream into the main stream of exhaust gas. The hydrolysis catalyst converts the isocyanic acid formed during thermolysis to ammonia and carbon dioxide using water vapor formed in the thermolysis catalyst.

    摘要翻译： 用贫混合物操作的内燃机的废气后处理系统，其中通过SCR催化剂还原氮氧化物，通过颗粒分离器或过滤器去除颗粒。 热解催化剂位于发动机靠近还原剂供给点下游的排气分流中。 在135℃以上的温度下，该热分解催化剂蒸发尿素水溶液的水分。 它含有在发动机附近出现的废气温度下热稳定的催化剂材料，并优先与尿素反应形成异氰酸。 水解催化剂位于废气流中，将排气流返回到废气的主流中。 水解催化剂使用在热解催化剂中形成的水​​蒸汽将热解期间形成的异氰酸酯转化成氨和二氧化碳。

    Particle separator, especially a particle filter, for the separation of particles from the exhaust gas stream of an internal combustion engine
    38.
    发明授权
    Particle separator, especially a particle filter, for the separation of particles from the exhaust gas stream of an internal combustion engine 有权
    颗粒分离器，特别是颗粒过滤器，用于从内燃机的废气流中分离颗粒

    公开(公告)号：US08147762B2

    公开(公告)日：2012-04-03

    申请号：US12540132

    申请日：2009-08-12

    申请人： Andreas Döring

    发明人： Andreas Döring

    IPC分类号： B01D50/00

    CPC分类号： F01N3/0222 ,  F01N2330/32 ,  F01N2330/38 ,  F01N2330/60 ,  F01N2510/0682 ,  Y02T10/20 ,  Y02T10/22

    摘要： A particle separator for the separation of particles from the exhaust gas stream of an internal combustion engine. The particle separator includes different heat transfer zones arranged at least in the main flow direction of an exhaust gas stream through the particle separator, different, that is, with respect to heat storage capacity and/or thermal conductivity and/or the heat-transfer properties from the exhaust gas stream to the particle separator. Each of these different zones makes it possible for a precisely defined amount of heat to be transferred from the exhaust gas stream to the individually assigned sections of the particle separator.

    摘要翻译： 一种用于从内燃机的废气流中分离颗粒的颗粒分离器。 颗粒分离器包括至少在通过颗粒分离器的废气流的主流动方向上布置的不同的传热区域，即相对于储热能力和/或热导率和/或传热性能不同 从废气流到颗粒分离器。 这些不同区域中的每一个使得可以将精确限定的热量从废气流转移到颗粒分离器的单独分配的部分。

    Particle separator and method for removing particles from an exhaust gas stream of an internal combustion engine
    39.
    发明授权
    Particle separator and method for removing particles from an exhaust gas stream of an internal combustion engine 有权
    用于从内燃机的废气流中除去颗粒的颗粒分离器和方法

    公开(公告)号：US07850934B2

    公开(公告)日：2010-12-14

    申请号：US12487572

    申请日：2009-06-18

    申请人： Andreas Döring

    发明人： Andreas Döring

    IPC分类号： B01D45/00 ,  B01D46/00 ,  B01D53/92 ,  B01D53/94

    CPC分类号： F01N3/037 ,  B01D45/06 ,  B01D45/08 ,  F01N13/009 ,  F01N2570/10 ,  Y02T10/20

    摘要： A particle separator and method for removing particles from an exhaust gas stream of an internal combustion engine. Differing flow regions having different flow conditions are formed in the particle separator. The differing flow regions are configured such that essentially particles having different, defined sizes and/or masses are adapted to be separated out of the exhaust gas stream in the differing flow regions. The exhaust gas stream is adapted to flow through at least portions of the particle separator.

    摘要翻译： 一种用于从内燃机的废气流中除去颗粒的颗粒分离器和方法。 在颗粒分离器中形成具有不同流动条件的不同流动区域。 不同的流动区域被配置为使得具有不同的，限定的尺寸和/或质量的基本上颗粒适于在不同的流动区域中从排气流中分离出来。 排气流适于流过至少部分的颗粒分离器。