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    NOx adsorber and method of regenerating same
    3.
    发明授权
    NOx adsorber and method of regenerating same 有权
    NOx吸附剂及其再生方法

    公开(公告)号：US07168243B2

    公开(公告)日：2007-01-30

    申请号：US11074402

    申请日：2005-03-07

    申请人： Dennis L. Endicott ,  Maarten Verkiel ,  James J. Driscoll

    发明人： Dennis L. Endicott ,  Maarten Verkiel ,  James J. Driscoll

    IPC分类号： F01N3/00

    CPC分类号： F01N9/00 ,  F01N3/0842 ,  F01N3/0871 ,  F01N2430/06 ,  F01N2430/08 ,  F01N2560/026 ,  F01N2570/145 ,  F01N2610/03 ,  F02D41/0275 ,  F02D41/029 ,  F02D41/146 ,  F02D2041/1468 ,  Y02A50/2344 ,  Y02C20/10 ,  Y02T10/47

    摘要： New technologies, such as NOx adsorber catalytic converters, are being used to meet increasingly stringent regulations on undesirable emissions, including NOx emissions. NOx adsorbers must be periodically regenerated, which requires an increased fuel consumption. The present disclosure includes a method of regenerating a NOx adsorber within a NOx adsorber catalytic converter. At least one sensor positioned downstream from the NOx adsorber senses, in the downstream exhaust, at least one of NOx, nitrous oxide and ammonia concentrations a plurality of times during a regeneration phase. The sensor is in communication with an electronic control module that includes a regeneration monitoring algorithm operable to end the regeneration phase when a time rate of change of the at least one of NOx, nitrous oxide and ammonia concentrations is after an expected plateau region begins.

    摘要翻译： 正在使用诸如NOx吸附剂催化转化器的新技术来满足日益严格的不合需要的排放的规定，包括NOx排放。 必须定期再生NO x吸附剂，这需要增加燃料消耗。 本公开内容包括在NOx吸附器催化转化器内再生NOx吸附器的方法。 位于NOx吸附器下游的至少一个传感器在再生阶段期间在下游排气中感测NOx，一氧化二氮和氨浓度中的至少一种浓度多次。 所述传感器与电子控制模块通信，所述电子控制模块包括可再生监测算法，所述再生监测算法可操作以在NOx，一氧化二氮和氨浓度中的至少一种的变化的时间变化在预期的平稳区域开始之后结束再生阶段。

    Exhaust treatment system
    5.
    发明授权
    Exhaust treatment system 有权
    排气处理系统

    公开(公告)号：US07762060B2

    公开(公告)日：2010-07-27

    申请号：US11412883

    申请日：2006-04-28

    申请人： William L. Easley, Jr. ,  Maarten Verkiel ,  Aaron D. Strauser ,  James J. Driscoll ,  Wade J. Robel

    发明人： William L. Easley, Jr. ,  Maarten Verkiel ,  Aaron D. Strauser ,  James J. Driscoll ,  Wade J. Robel

    IPC分类号： F01N3/00

    CPC分类号： F01N3/027 ,  F01N3/025 ,  F01N3/0821 ,  F01N13/009 ,  F01N2250/02 ,  F01N2430/00

    摘要： An exhaust treatment system is provided. The system may include a particulate trap configured to remove one or more types of particulate matter from an exhaust flow of an engine. The system may also include a catalyst configured to chemically alter at least one component of the exhaust flow. Further, the system may include an exhaust conduit configured to direct the exhaust flow from the engine to the particulate trap and the catalyst. In addition, the exhaust treatment system may include a heating system configured to maintain the temperature of the catalyst above a first predetermined temperature. The heating system may also be configured to periodically raise the temperature of the particulate trap above a higher, second predetermined temperature to thereby effectuate a regeneration of the particulate trap by oxidizing particulate matter accumulated in the particulate trap.

    摘要翻译： 提供排气处理系统。 该系统可以包括构造成从发动机的排气流中去除一种或多种类型的颗粒物质的微粒捕集器。 该系统还可以包括配置成化学改变排气流的至少一个组分的催化剂。 此外，该系统可以包括排气导管，该排气导管构造成将排气流从发动机引导到颗粒捕集器和催化剂。 此外，排气处理系统可以包括被配置为将催化剂的温度保持在第一预定温度以上的加热系统。 加热系统还可以被配置为周期性地将颗粒捕集器的温度升高到更高的第二预定温度以上，从而通过氧化颗粒捕集器中积聚的颗粒物质来实现颗粒捕集器的再生。

    Method and system for particulate filter regeneration
    9.
    发明申请
    Method and system for particulate filter regeneration 审中-公开
    颗粒过滤器再生方法及系统

    公开(公告)号：US20080053074A1

    公开(公告)日：2008-03-06

    申请号：US11513109

    申请日：2006-08-31

    申请人： Maarten Verkiel

    发明人： Maarten Verkiel

    IPC分类号： F01N3/00

    CPC分类号： F01N9/002 ,  B60W10/02 ,  B60W10/06 ,  B60W30/1882 ,  B60Y2300/476 ,  F01N11/002 ,  F01N2560/06 ,  F01N2560/07 ,  F02D41/029 ,  F02D41/1446 ,  Y02T10/47 ,  Y02T10/54

    摘要： A particulate filter regeneration system is provided for regenerating a filter at low vehicular speeds. The power source is selectively coupled to a transmission unit so that the transmission unit can be at least partially decoupled from the power source. An exhaust passage having a particulate filtering device is configured to release exhaust from the power source into the atmosphere. In addition, a controller is configured to determine at least one power source parameter indicative of an exhaust temperature, at least partially decouple the power source from the transmission unit in response to the determination, and increase a power source speed in response to the determination.

    摘要翻译： 提供了一种微粒过滤器再生系统，用于以低车速再生过滤器。 电源选择性地耦合到传输单元，使得传输单元可以至少部分地与电源解耦。 具有颗粒过滤装置的排气通道被配置为将排放物从动力源释放到大气中。 此外，控制器被配置为确定指示排气温度的至少一个电源参数，响应于该确定，至少部分地将电源与传输单元分离，并且响应于该确定而增加电源速度。