Apparatus and method for reductant dosing of an exhaust
    41.
    发明申请
    Apparatus and method for reductant dosing of an exhaust 失效
    用于还原剂排放的装置和方法

    公开(公告)号:US20070295003A1

    公开(公告)日:2007-12-27

    申请号:US11897746

    申请日:2006-06-06

    IPC分类号: F01N3/10

    摘要: A high-pressure metering pump for providing reductant in a single fluid engine exhaust dosing system, comprising: a solenoid for actuating a piston slidably received within an inner bore of a valve housing of the pump, the inner bore having a pressure chamber with an inlet check valve and an outlet check valve; and wherein movement of the piston causes high pressure reductant to be received at an atomizer of the system, the atomizer being disposed in a location to cause a maximum reduction of undesirable pollutant in the combustion gases of an engine.

    摘要翻译: 一种用于在单个流体引擎排气计量系统中提供还原剂的高压计量泵,包括:螺线管,用于致动可滑动地容纳在所述泵的阀壳体的内孔内的活塞,所述内孔具有压力室,所述压力室具有入口 止回阀和出口止回阀; 并且其中活塞的运动导致在系统的雾化器处接收高压还原剂,雾化器被布置在引起发动机燃烧气体中不期望的污染物的最大减少的位置。

    Apparatus and method for reductant dosing of an exhaust
    45.
    发明授权
    Apparatus and method for reductant dosing of an exhaust 失效
    用于还原剂排放的装置和方法

    公开(公告)号:US07707825B2

    公开(公告)日:2010-05-04

    申请号:US11897746

    申请日:2006-06-06

    IPC分类号: F01N3/00

    摘要: A high-pressure metering pump for providing reductant in a single fluid engine exhaust dosing system having a solenoid for actuating a piston slidably received within an inner bore of a valve housing of the pump, the inner bore having a pressure chamber with an inlet check valve and an outlet check valve; and wherein movement of the piston causes high pressure reductant to be received at an atomizer of the system, the atomizer being disposed in a location to cause a maximum reduction of undesirable pollutant in the combustion gases of an engine.

    摘要翻译: 一种用于在单流体发动机排气计量系统中提供还原剂的高压计量泵,其具有用于致动可滑动地容纳在泵的阀壳体的内孔内的活塞的螺线管,所述内孔具有带入口止回阀的压力室 和出口止回阀; 并且其中活塞的运动导致在系统的雾化器处接收高压还原剂,雾化器被布置在引起发动机燃烧气体中不期望的污染物的最大减少的位置。

    NOx sensor and methods of using the same
    46.
    发明申请
    NOx sensor and methods of using the same 有权
    NOx传感器及其使用方法

    公开(公告)号:US20070080075A1

    公开(公告)日:2007-04-12

    申请号:US11538252

    申请日:2006-10-03

    IPC分类号: G01F1/64 G01N27/26

    摘要: Disclosed herein are NOx sensors and methods of using the same. In one embodiment, a method for sensing NOx comprises: contacting a first NOx electrode with the gas, contacting a second NOx electrode with the gas, determining a NO2 emf between the first NOX electrode and a first reference electrode, determining a NOx emf between the second NOx electrode and a second reference electrode, and determining a NO2 concentration and a NO concentration using the NO2 emf and the NOx emf. The first electrode can be at a first temperature of greater than or equal to about 700 ° C., and the second electrode can be at a second temperature of about 500 ° C. to about 650 ° C.

    摘要翻译: 本文公开了NOx传感器及其使用方法。 在一个实施例中,用于感测NOx的方法包括:使第一NOx电极与气体接触,使第二NOx电极与气体接触,确定第一NO x电极和第一参考电极之间的NO 2 电极,确定第二NOx电极和第二参比电极之间的NOx电动势,以及使用NO 2 2 emf和NO x emf确定NO 2浓度和NO浓度 。 第一电极可以处于大于或等于约700℃的第一温度,并且第二电极可以处于约500℃至约650℃的第二温度。

    Ammonia gas sensors
    47.
    发明申请
    Ammonia gas sensors 有权
    氨气传感器

    公开(公告)号:US20060266659A1

    公开(公告)日:2006-11-30

    申请号:US11483448

    申请日:2006-07-10

    IPC分类号: G01F1/64 G01N27/26

    摘要: One embodiment of an ammonia gas sensor includes: a reference electrode, an ammonia selective sensing electrode and an electrolyte disposed therebetween. The sensing electrode comprises the reaction product of a main material selected from the group consisting of vanadium, tungsten, molybdenum, vanadium oxides, tungsten oxides, molybdenum oxides, and combinations comprising at least one of the foregoing main materials, and an electrically conducting material selected from the group consisting of electrically conductive metals, electrically conductive metal oxides, and combinations comprising at least one of the foregoing.

    摘要翻译: 氨气传感器的一个实施例包括:参比电极,氨选择性感测电极和设置在其间的电解质。 感测电极包括选自钒,钨,钼,氧化钒,氧化钨,氧化钼以及包含至少一种前述主要材料的组合的主要材料的反应产物和选择的导电材料 来自由导电金属,导电金属氧化物组成的组,以及包含前述的至少一种的组合。

    Multi-function sensor system and method of operation
    48.
    发明申请
    Multi-function sensor system and method of operation 审中-公开
    多功能传感器系统及操作方法

    公开(公告)号:US20060151338A1

    公开(公告)日:2006-07-13

    申请号:US11034125

    申请日:2005-01-12

    IPC分类号: G01F1/64 G01N27/26

    CPC分类号: G01N27/4071 G01N27/4075

    摘要: A gas sensor system includes an ammonia-sensing cell for generating a signal upon exposure to an unknown gas comprising ammonia, an A/F cell for generating a signal upon exposure to hydrocarbons in the gas, a heater in thermal communication with the cells and a housing in which the cells and the heater are mounted. The housing permits an unknown gas to flow therethrough for contact with the cells, and there is a sensor control circuit in communication with the cells. The sensor control circuit is configured to utilize the signals from the cells to generate an ammonia concentration signal indicating the concentration of ammonia in the unknown gas. Ammonia may be sensed in an unknown gas by heating such cells to selected working temperatures, exposing them to an unknown gas, obtaining signals from the cells, and using the cell signals to determine the ammonia content.

    摘要翻译: 气体传感器系统包括用于在暴露于包含氨的未知气体时产生信号的氨感测单元,用于在暴露于气体中的烃时产生信号的A / F单元,与单元热连通的加热器 安装电池和加热器的外壳。 壳体允许未知气体流过其中以与电池接触,并且存在与电池连通的传感器控制电路。 传感器控制电路被配置为利用来自单元的信号产生指示未知气体中的氨浓度的氨浓度信号。 可以通过将这样的细胞加热至选定的工作温度,将其暴露于未知气体,从细胞获得信号,并使用细胞信号来确定氨含量,可以在未知气体中感测氨。

    Non-thermal plasma reactor for lower power consumption
    49.
    发明授权
    Non-thermal plasma reactor for lower power consumption 失效
    非热等离子体反应器,降低功耗

    公开(公告)号:US06835358B2

    公开(公告)日:2004-12-28

    申请号:US10146738

    申请日:2002-05-16

    IPC分类号: B01J1908

    摘要: A system and method for treating a combustion exhaust stream includes admitting an exhaust stream into a non-thermal plasma reactor having at least one segmented non-thermal plasma element including a plurality of individually energizable electrode segments defining a plurality of corona volumes. In a preferred embodiment, the electrode segments are progressively smaller in size in the exhaust flow direction to provide optimum plasma volume variation. Individually energizable electrodes are selectively activated to effect variable corona volumes for treating an exhaust stream. Additional reactor segments are activated only as needed, such as during periods of high exhaust flow, for efficient treatment of the exhaust stream so as to maintain optimized high space velocity in the active corona volume. The segmented elements may comprise a variety of shapes. The system and method are particularly suitable for gas pretreatment and downstream diesel particulate filter regeneration.

    摘要翻译: 一种用于处理燃烧废气流的系统和方法包括将排气流引入非热等离子体反应器,该反应器具有至少一个分段的非热等离子体元件,其包括限定多个电晕体积的多个单独可激励的电极段。 在优选实施例中,电极段在排气流动方向上的尺寸逐渐变小,以提供最佳的等离子体体积变化。 选择性地激活单独激活电极以实现可变电晕体积以处理废气流。 额外的反应器段仅在需要时被激活,例如在高排气流量期间,用于有效地处理废气流,以便在活性电晕体积中保持优化的高空速。 分段元件可以包括各种形状。 该系统和方法特别适用于气体预处理和下游柴油微粒过滤器再生。