Heat generation system for determining a selective catalytic reduction device efficiency
    4.
    发明授权
    Heat generation system for determining a selective catalytic reduction device efficiency 有权
    用于确定选择性催化还原装置效率的发热系统

    公开(公告)号:US09415345B2

    公开(公告)日:2016-08-16

    申请号:US13760558

    申请日:2013-02-06

    摘要: A control method and system for monitoring a selective catalytic reduction (“SCR”) device of an exhaust gas treatment system is disclosed. The method includes monitoring a plurality of operating conditions related to determining an efficiency of the SCR device and a SCR temperature. The method includes determining if each of the operating conditions are within a respective predetermined range and if the SCR temperature is below an operating temperature range. The method includes activating a hydrocarbon supply based on if each of the operating conditions are within the respective predetermined range and if the SCR temperature is below the operating temperature range. The hydrocarbon supply is located upstream of the SCR device to generate heat if activated. The method includes monitoring the SCR temperature to determine if the SCR device is operating within the operating temperature range.

    摘要翻译: 公开了一种用于监测废气处理系统的选择性催化还原(SCR))装置的控制方法和系统。 该方法包括监视与确定SCR装置的效率和SCR温度相关的多个操作条件。 该方法包括确定每个操作条件是否在相应的预定范围内,以及如果SCR温度低于工作温度范围。 该方法包括基于每个操作条件是否在相应的预定范围内以及如果SCR温度低于工作温度范围激活烃供应。 碳氢化合物供应位于SCR装置的上游,以产生热量,如果被激活。 该方法包括监视SCR温度以确定SCR装置是否在工作温度范围内运行。

    HEAT GENERATION SYSTEM FOR DETERMINING A SELECTIVE CATALYTIC REDUCTION DEVICE EFFICIENCY
    7.
    发明申请
    HEAT GENERATION SYSTEM FOR DETERMINING A SELECTIVE CATALYTIC REDUCTION DEVICE EFFICIENCY 有权
    用于确定选择性催化还原装置效率的热量产生系统

    公开(公告)号:US20140219896A1

    公开(公告)日:2014-08-07

    申请号:US13760558

    申请日:2013-02-06

    IPC分类号: B01D53/94

    摘要: A control method and system for monitoring a selective catalytic reduction (“SCR”) device of an exhaust gas treatment system is disclosed. The method includes monitoring a plurality of operating conditions related to determining an efficiency of the SCR device and a SCR temperature. The method includes determining if each of the operating conditions are within a respective predetermined range and if the SCR temperature is below an operating temperature range. The method includes activating a hydrocarbon supply based on if each of the operating conditions are within the respective predetermined range and if the SCR temperature is below the operating temperature range. The hydrocarbon supply is located upstream of the SCR device to generate heat if activated. The method includes monitoring the SCR temperature to determine if the SCR device is operating within the operating temperature range.

    摘要翻译: 公开了一种用于监测废气处理系统的选择性催化还原(SCR))装置的控制方法和系统。 该方法包括监视与确定SCR装置的效率和SCR温度相关的多个操作条件。 该方法包括确定每个操作条件是否在相应的预定范围内,以及如果SCR温度低于工作温度范围。 该方法包括基于每个操作条件是否在相应的预定范围内以及如果SCR温度低于工作温度范围激活烃供应。 碳氢化合物供应位于SCR装置的上游,以产生热量,如果被激活。 该方法包括监视SCR温度以确定SCR装置是否在工作温度范围内运行。

    STOICHIOMETRIC EXHAUST GAS RECIRCULATION AND RELATED COMBUSTION CONTROL
    8.
    发明申请
    STOICHIOMETRIC EXHAUST GAS RECIRCULATION AND RELATED COMBUSTION CONTROL 有权
    STOICHIOMETRIC EXHA气体回收和相关的燃烧控制

    公开(公告)号:US20120185144A1

    公开(公告)日:2012-07-19

    申请号:US12973976

    申请日:2011-01-13

    IPC分类号: F02C7/22 F02C7/00

    摘要: A fuel control system for a gas turbine engine that includes a primary fuel circuit, a fuel tuning circuit, a plurality of combustors connected to the fuel tuning circuit, oxygen and carbon dioxide sensors in the exhaust stream and a feedback control loop operatively connected to the fuel tuning circuit and to the oxygen and carbon monoxide sensors which serve to control the precise amount of fuel and air being fed to each one of the plurality of combustors in the engine. A parallel array of control valves in a tuning fuel circuit connect to corresponding ones of the plurality of combustors in the gas turbine engine. The fuel control system thereby “fine tunes” the amount of fuel and air being fed to each combustor using data regarding the detected oxygen and carbon monoxide concentrations in the exhaust gas as provided through a feedback control loop.

    摘要翻译: 一种用于燃气涡轮发动机的燃料控制系统,其包括主要燃料电路,燃料调节电路,连接到燃料调节回路的多个燃烧器,排气流中的氧气和二氧化碳传感器以及可操作地连接到燃料调节回路的反馈控制回路 燃料调节电路和氧气和一氧化碳传感器,其用于控制​​供给到发动机中的多个燃烧器中的每一个的燃料和空气的精确量。 调谐燃料电路中的并联的控制阀阵列连接到燃气涡轮发动机中的多个燃烧器中的相应燃烧器。 因此,燃料控制系统通过反馈控制回路提供的关于废气中检测到的氧气和一氧化碳浓度的数据,“精细地调整”了向每个燃烧器供给的燃料和空气的量。

    NOx trapping catalytic converter diagnostic apparatus
    9.
    发明授权
    NOx trapping catalytic converter diagnostic apparatus 失效
    NOx捕集催化转化器诊断仪

    公开(公告)号:US08146346B2

    公开(公告)日:2012-04-03

    申请号:US12048655

    申请日:2008-03-14

    IPC分类号: F01N3/00

    摘要: A NOx trapping catalytic converter diagnostic apparatus basically has a particulate matter accumulation estimating component, a particulate matter accumulation detecting component and a deterioration determining component. The particulate matter accumulation estimating component is configured to estimate an estimated amount of particulate matter accumulated a particulate matter filter that is positioned downstream of a NOx trapping catalytic converter. The particulate matter accumulation detecting component is configured to detect a detected amount of particulate matter accumulated in the particulate matter filter. The deterioration determining component is configured to determine if deterioration of the NOx trapping catalytic converter has occurred based on the estimated amount of accumulated particulate matter and the detected amount of accumulated particulate matter without using a NOx sensor to determine if the NOx trapping catalytic converter has deteriorated.

    摘要翻译: NOx捕集催化转化器诊断装置基本上具有颗粒物质积聚估计部件,颗粒物积聚检测部件和劣化判定部件。 颗粒物积聚估计部件被配置为估计累积在NOx捕集催化转化器下游的颗粒物质过滤器的颗粒物质的估计量。 颗粒物积聚检测部件被配置为检测在颗粒物质过滤器中累积的颗粒物质的检测量。 劣化判定部件构成为,在不使用NOx传感器的情况下,基于所估计的累积粒子物质量和检测到的累积粒子物质量来判定NOx捕集催化转化器的劣化是否已经劣化 。