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    Mechanical apparatus having a catalytic NOx storage and conversion device
    7.
    发明申请
    Mechanical apparatus having a catalytic NOx storage and conversion device 有权
    具有催化NOx储存和转化装置的机械装置

    公开(公告)号：US20060096276A1

    公开(公告)日：2006-05-11

    申请号：US10985576

    申请日：2004-11-09

    申请人： Christian Goralski ,  Joseph Theis ,  Gopichandra Surnilla ,  Justin Ura ,  Shane Elwart

    发明人： Christian Goralski ,  Joseph Theis ,  Gopichandra Surnilla ,  Justin Ura ,  Shane Elwart

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0814 ,  F01N3/0842 ,  F01N13/009 ,  F01N13/0097 ,  F02D41/0275 ,  Y02A50/2345 ,  Y02T10/22

    摘要： A mechanical apparatus including a combustion engine, a conduit for transporting an exhaust stream away from the engine, a first catalytic NOx storage and conversion region disposed along the conduit, and a second catalytic NOx storage and conversion region disposed along the conduit at a location downstream from the first catalytic NOx storage and conversion region is disclosed. Each of the first catalytic NOx storage and conversion region and the second catalytic NOx storage and conversion region includes at least one catalytic metal configured to convert NOx to NO2 when the engine is supplied a lean air/fuel mixture, and at least one NOx adsorbing compound configured to adsorb NO2 for storage when the engine is supplied a lean air/fuel mixture, and wherein the one of the first and the second catalytic NOx storage and conversion regions has a lower concentration of catalytic metal than the other of the first and second catalytic NOx storage and conversion regions.

    摘要翻译： 一种机械设备，包括内燃机，用于将排气流输送离开发动机的导管，沿导管设置的第一催化剂NO x X存储和转化区域，以及第二催化剂NO x 公开了沿着导管设置在第一催化剂NO x存储和转换区域下游的位置的存储和转换区域。 第一催化NO x X存储和转化区域和第二催化剂NO x存储和转化区域中的每一个包括至少一种催化金属，其被配置成将NO x x 在发动机供给稀薄空气/燃料混合物时，至少一个NO 2吸附化合物配置成吸附NO 2 / SUB>用于在发动机供应稀薄空气/燃料混合物时存储，并且其中第一和第二催化剂NO x存储和转化区域中的一个具有比其他催化剂更低的催化金属浓度 的第一和第二催化剂NO x存储和转化区域。

    System and method for determining a NOx storage capacity of a catalytic device
    8.
    发明申请
    System and method for determining a NOx storage capacity of a catalytic device 审中-公开
    用于确定催化装置的NOx存储容量的系统和方法

    公开(公告)号：US20070084196A1

    公开(公告)日：2007-04-19

    申请号：US11254304

    申请日：2005-10-19

    申请人： Gopichandra Surnilla ,  Christian Goralski ,  Joseph Patterson ,  Joseph Theis ,  Shane Elwart

    发明人： Gopichandra Surnilla ,  Christian Goralski ,  Joseph Patterson ,  Joseph Theis ,  Shane Elwart

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0807 ,  F01N3/0842 ,  F01N3/106 ,  F01N11/007 ,  F01N13/009 ,  F01N2560/025 ,  F01N2560/14 ,  F02D41/0275 ,  F02D41/1441 ,  F02D41/1475 ,  F02D2200/0808 ,  F02D2200/0816 ,  Y02T10/47

    摘要： In an apparatus having an internal combustion engine, a method of operating the engine including operating the engine at a first non-stoichiometric relative air/fuel ratio for a first duration; operating the engine at a second non-stoichiometric relative air/fuel ratio for a second duration, wherein the second relative air/fuel ratio is on an opposite side of a stoichiometric relative air/fuel ratio as the first relative air/fuel ratio, and wherein the second duration is of sufficient length to allow at least one of one of a substantial saturation of oxygen storage sites in the catalytic device and a substantial regeneration of oxygen storage sites in the catalytic device; and operating the engine at a third non-stoichiometric relative air/fuel ratio for a third duration, wherein the third relative air/fuel ratio is on a same side of the stoichiometric relative air/fuel ratio as the second relative air/fuel ratio and is further from the stoichiometric relative air/fuel ratio than the second relative air/fuel ratio.

    摘要翻译： 在具有内燃机的装置中，一种操作发动机的方法包括以第一非化学计量相对空燃比操作发动机持续第一时间; 以第二非化学计量相对空气/燃料比操作所述发动机持续第二持续时间，其中所述第二相对空气/燃料比在与所述第一相对空气/燃料比的化学计量相对空气/燃料比的相反侧，以及 其中所述第二持续时间具有足够的长度以允许所述催化装置中的氧储存位置的基本饱和中的至少一个和所述催化装置中的氧存储位点的实质再生; 以及以第三非化学计量相对空气/燃料比操作所述发动机持续第三持续时间，其中所述第三相对空气/燃料比与所述第二相对空气/燃料比的化学计量相对空气/燃料比的相同侧，以及 比第二相对空气/燃料比的化学计量相对空气/燃料比更远。

    System and method for determining a NOx storage capacity of catalytic device
    9.
    发明申请
    System and method for determining a NOx storage capacity of catalytic device 有权
    用于确定催化装置的NOx储存容量的系统和方法

    公开(公告)号：US20070084195A1

    公开(公告)日：2007-04-19

    申请号：US11254287

    申请日：2005-10-19

    申请人： Gopichandra Surnilla ,  Christian Goralski ,  Joseph Patterson ,  Joseph Theis ,  Shane Elwart

    发明人： Gopichandra Surnilla ,  Christian Goralski ,  Joseph Patterson ,  Joseph Theis ,  Shane Elwart

    IPC分类号： F01N3/00

    CPC分类号： F01N11/007 ,  F01N3/0807 ,  F01N3/0842 ,  F01N3/106 ,  F01N13/009 ,  F01N2560/025 ,  F01N2560/14 ,  F02D41/0275 ,  F02D41/1441 ,  F02D41/1475 ,  F02D2200/0802 ,  F02D2200/0808 ,  F02D2200/0816 ,  Y02T10/47

    摘要： In an apparatus having an internal combustion engine, a catalytic device for treating emissions from the engine, an upstream oxygen sensor positioned upstream of the catalytic device, a downstream oxygen sensor positioned downstream of the catalytic device, and a controller configured to determine a NOx storage capacity of the catalytic device from a difference between a signal received from the upstream oxygen sensor and a signal received from the downstream oxygen sensor, a method of operating the engine is disclosed, the method including operating the engine at a rich air/fuel ratio for a first interval; adjusting a temperature of the catalytic device to a diagnostic temperature for measuring an oxygen uptake by the catalytic device; operating the engine at a lean air/fuel ratio for a second interval; and adjusting the temperature of the catalytic device to an operating temperature.

    摘要翻译： 在具有内燃机的装置中，用于处理来自发动机的排放物的催化装置，位于催化装置上游的上游氧传感器，位于催化装置下游的下游氧传感器，以及控制器， 从上游氧传感器接收的信号与从下游氧传感器接收的信号之间的差异，催化装置的存储容量，发动机的操作方法被公开，该方法包括操作发动机 以较高的空燃比第一间隔; 将催化装置的温度调节到用于测量催化装置的氧吸收的诊断温度; 以稀空气/燃料比操作发动机第二间隔; 并将催化装置的温度调节至工作温度。