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    Flow-through honeycomb substrate and exhaust after treatment system and method
    34.
    发明申请
    Flow-through honeycomb substrate and exhaust after treatment system and method 有权
    流通蜂窝基体和排气后处理系统及方法

    公开(公告)号：US20080110341A1

    公开(公告)日：2008-05-15

    申请号：US11599928

    申请日：2006-11-15

    申请人： Thomas Dale Ketcham ,  Yuming Xie

    发明人： Thomas Dale Ketcham ,  Yuming Xie

    IPC分类号： B01D53/86 ,  B01D53/00 ,  B32B1/08

    CPC分类号： F01N3/035 ,  F01N3/0222 ,  F01N3/0821 ,  F01N3/0842 ,  F01N13/0097 ,  F01N2240/20 ,  F01N2260/14 ,  F01N2330/06 ,  F01N2330/48 ,  Y10S55/30 ,  Y10S502/518 ,  Y10T428/13 ,  Y10T428/24149 ,  Y10T428/24157

    摘要： A system and method including a radially non-uniformly plugged flow-through honeycomb substrate positioned upstream of a wall-flow particulate filter for controlled thermal regeneration of the wall-flow particulate filter. The flow-through honeycomb substrate has an inlet face and an outlet face and a plurality of longitudinal walls extending between the inlet face and the outlet face. The longitudinal walls define a plurality of parallel channels extending between the inlet face and the outlet face. The honeycomb substrate has a flow-through region including a first portion of the parallel channels and a flow-control region including a second portion of the parallel channels. The first portion of the parallel channels includes unplugged channels and the second portion of the parallel channels includes plugged channels. The flow-control region adjusts flow distribution through the substrate such that flow having a first flow distribution received at the inlet face emerges at the outlet face with a second flow distribution, different than the first flow distribution.

    摘要翻译： 一种系统和方法，包括位于壁流微粒过滤器上游的径向非均匀堵塞的流通蜂窝基体，用于壁流微粒过滤器的受控热再生。 流通蜂窝基材具有入口面和出口面以及在入口面和出口面之间延伸的多个纵向壁。 纵向壁限定了在入口面和出口面之间延伸的多个平行通道。 蜂窝基板具有包括并行通道的第一部分的流通区域和包括并行通道的第二部分的流动控制区域。 并行通道的第一部分包括拔出的通道，并且并行通道的第二部分包括插入通道。 流量控制区域调节通过基板的流量分布，使得在入口面处接收的具有第一流量分布的流体在出口面处以不同于第一流量分布的第二流量分布出现。

    Automotive hydrocarbon sensor
    36.
    发明授权
    Automotive hydrocarbon sensor 失效
    汽车碳氢传感器

    公开(公告)号：US06344173B1

    公开(公告)日：2002-02-05

    申请号：US09451075

    申请日：1999-11-30

    申请人： Margaret K. Faber ,  Yuming Xie ,  Zhigang Zhou

    发明人： Margaret K. Faber ,  Yuming Xie ,  Zhigang Zhou

    IPC分类号： H01N3112

    CPC分类号： G01N27/16 ,  Y10T436/208339 ,  Y10T436/218

    摘要： A sensor for measuring the non-methane HC concentration of gas sample, e.g., automotive exhaust gas, the sensor comprises a sensor base, capable of producing a output signal representative of the exothermic effect of the hydrocarbon species in the gas sample. The sensor base has disposed on, and integral with, its surface, a porous selective oxidation catalyst layer comprising capable of selectively oxidizing a combination of CO+H2+alkene species in the gas sample and leaving unoxidized the alkane and aromatic hydrocarbons. The sensor base further includes a first supported resistance temperature device which has disposed thereon a total oxidation catalyst layer capable of oxidizing the remaining alkane and aromatic hydrocarbon species in the gas sample, and a non-catalyzed second resistance temperature device.

    摘要翻译： 用于测量气体样品（例如汽车废气）的非甲烷HC浓度的传感器包括传感器基座，能够产生代表气体样品中烃类物质的放热效应的输出信号。 传感器基座已经设置在其表面上并与其表面成一体，多孔选择氧化催化剂层包括能够选择性地氧化气体样品中的CO + H 2 +烯烃组合并留下未氧化的烷烃和芳族烃。 传感器基座还包括第一支撑电阻温度装置，其在其上设置有能够氧化气体样品中剩余的烷烃和芳族烃物质的总氧化催化剂层和非催化的第二电阻温度装置。

    Automotive hydrocarbon sensor system
    37.
    发明授权
    Automotive hydrocarbon sensor system 失效
    汽车碳氢传感器系统

    公开(公告)号：US6037183A

    公开(公告)日：2000-03-14

    申请号：US980346

    申请日：1997-11-28

    申请人： Margaret K. Faber ,  Yuming Xie

    发明人： Margaret K. Faber ,  Yuming Xie

    IPC分类号： F01N11/00 ,  G01N27/16 ,  G01N33/00 ,  F01N3/10

    CPC分类号： G01N27/16 ,  F01N11/00 ,  G01N33/0047 ,  F01N2550/02 ,  F01N2560/023 ,  Y02T10/47 ,  Y10T436/179228 ,  Y10T436/208339 ,  Y10T436/218

    摘要： A system for measuring the non-methane HC concentration of gas sample, e.g. automotive exhaust gas, comprising first and second catalytic differential calorimetric sensors. The first catalytic differential calorimetric sensor is capable of producing a first output signal representative of the exothermic effect of the oxidation of the predominate oxidizable species (CO+H.sub.2 +non-methane HC combination) in the gas sample. The second catalytic differential calorimetric sensor is capable of producing a second output signal representative of the exothermic effect of the combined oxidation of the CO+H.sub.2 +alkene hydrocarbon species in the gas sample. Lastly, the system includes a means for comparing the first output signal with the second output signal, thereby indicating the total concentration of unburned aromatic and alkane hydrocarbon species in the gas sample which directly correlates to the total non-methane HC concentration. A method carried out by the system comprises the following steps: (a) contacting a first portion of an exhaust gas with a sensor and producing an output signal representative of the concentration of the predominate (CO+H.sub.2 +non-methane HC species) oxidizable species in the exhaust gas; (b) contacting a second portion of the exhaust gas with a second sensor and producing a second output signal representative of the combined concentration of CO+H.sub.2 +alkene hydrocarbon species in the second exhaust gas portion; and (c) determining the aromatic and alkane hydrocarbon species concentration, and thus the total non-methane HC concentration, of the exhaust gas by comparing the first output signal with the second output signal.

    摘要翻译： 用于测量气体样品的非甲烷HC浓度的系统，例如， 汽车废气，包括第一和第二催化差示量热传感器。 第一催化差示量热传感器能够产生代表气体样品中主要可氧化物质（CO + H 2 +非甲烷HC组合）的氧化的放热效应的第一输出信号。 第二催化差示量热传感器能够产生代表气体样品中CO + H 2 +烯烃类物质的组合氧化的放热效应的第二输出信号。 最后，该系统包括用于将第一输出信号与第二输出信号进行比较的装置，从而指示气体样品中未燃烧的芳族和烷烃类物质与总非甲烷HC浓度直接相关的总浓度。 由系统执行的方法包括以下步骤：（a）使废气的第一部分与传感器接触，并产生代表主要（CO + H 2 +非甲烷HC物质）可氧化的浓度的输出信号 废气中的物质; （b）使排气的第二部分与第二传感器接触，并产生代表第二废气部分中CO + H 2 +烯烃烃物质的组合浓度的第二输出信号; 和（c）通过将第一输出信号与第二输出信号进行比较来确定废气中的芳烃和烷烃烃类浓度，从而确定废气的总非甲烷HC总浓度。