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    Physical based LNT regeneration strategy
    2.
    发明申请
    Physical based LNT regeneration strategy 失效
    基于物理的LNT再生策略

    公开(公告)号：US20090025367A1

    公开(公告)日：2009-01-29

    申请号：US11880950

    申请日：2007-07-25

    Applicant: James Edward McCarthy, JR. ,  Chuan He

    Inventor： James Edward McCarthy, JR. ,  Chuan He

    IPC: F01N3/20

    CPC classification number: F01N3/0885 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/2073 ,  F01N3/208 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2560/026 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/1621 ,  Y02T10/24

    Abstract: A lean NOX trap is a diesel exhaust aftertreatment system is selectively denitrated in a manner that addresses unreliability of NOX sensor data. According to one concept, data from a NOX is ignored or given decreased weight in a period immediately following a denitration. According to another concept, denitration is made contingent on both a first and a second criteria being met. The first criteria relates to the amount of NOX stored in the LNT or remaining NOX storage capacity of the LNT. The second criteria relates to the current performance of the exhaust treatment system, or a portion thereof, as determined from one or more measurements of NOX concentration in the exhaust. This reduces premature denitrations and associated unnecessary fuel expenditures resulting from inaccurate NOX concentration data and transient events

    Abstract translation: 精益NOX捕集器是以解决NOX传感器数据的不可靠性的方式选择性地脱硝柴油机排气后处理系统。 根据一个概念，来自NOX的数据被忽略，或者在脱氮之后的时间段内减轻重量。 根据另一个概念，脱硝是根据符合第一和第二标准而进行的。 第一个标准涉及储存在LNT中的NOX量或LNT的剩余NOX储存容量。 第二标准涉及排气处理系统的当前性能，或其一部分，其根据排气中的一氧化氮浓度的一个或多个测量结果确定。 这可以减少由于不准确的NOX浓度数据和瞬态事件导致的过早脱硝和相关的不必要的燃料费用

    Narrow speed range diesel-powered engine system w/ aftertreatment devices
    3.
    发明授权
    Narrow speed range diesel-powered engine system w/ aftertreatment devices 失效
    狭窄的速度范围柴油发动机系统w /后处理装置

    公开(公告)号：US07063642B1

    公开(公告)日：2006-06-20

    申请号：US11246974

    申请日：2005-10-07

    Applicant: Haoran Hu ,  Thomas Stover ,  James Edward McCarthy, Jr.

    Inventor： Haoran Hu ,  Thomas Stover ,  James Edward McCarthy, Jr.

    IPC: F16H59/74 ,  F01N3/00

    CPC classification number: F02D41/0235 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/2066 ,  F01N3/2073 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2610/03 ,  F02D31/001 ,  F02D41/00 ,  F16H61/66259 ,  F16H2059/743 ,  F16H2061/0018 ,  Y02A50/2325 ,  Y02T10/24 ,  Y10T477/663

    Abstract: One or more parameters for denitration or desulfations of a LNT is varied, whereby the saturation of NOx and/or SOx in the LNT is reduced to a lower level when an operating state makes the LNT otherwise less effective or places a greater demand for conversion efficiency on the LNT. The operating state can relate to whether the LNT is at the limit of its effective operating temperature range, a degree of poisoning, or an engine operating state. Selectively tolerating high degrees of sulfur poisoning or NOx saturation during periods of low exhaust flow allows the efficiency of denitrations and/or desulfations to be increased over a large portion of a vehicle's operating cycle, particularly when the engine uses a CVT. Another concept relates to a power generation system comprising an engine tuned to efficiently operate in a narrow speed range for all levels of power output.

    Abstract translation: 改变一个或多个用于脱氮或脱硫的参数，从而当操作状态使得LNT不太有效或对转换效率的需求较大时，LNT中的NOx和/或SOx的饱和度降低到较低的水平 在LNT上。 操作状态可以与LNT是否处于其有效工作温度范围，中毒程度或发动机工作状态的极限有关。 特别是在发动机使用无级变速器时，选择性地容忍低排气流量期间的高硫硫中毒或NOx饱和，允许在大部分车辆运行循环中提高脱硝和/或脱硫效率。 另一个概念涉及一种发电系统，其包括被调谐以在所有级别的功率输出的低速范围内有效操作的发动机。

    LNT desulfation strategy with reformer temperature management
    5.
    发明授权
    LNT desulfation strategy with reformer temperature management 有权
    LNT脱硫策略与重整器温度管理

    公开(公告)号：US07669408B2

    公开(公告)日：2010-03-02

    申请号：US11293065

    申请日：2005-12-02

    Applicant: James Edward McCarthy, Jr. ,  Johannes Walter Reuter

    Inventor： James Edward McCarthy, Jr. ,  Johannes Walter Reuter

    IPC: F01N3/00

    CPC classification number: F01N3/0814 ,  F01N3/0842 ,  F01N3/0885 ,  F01N3/2066 ,  F01N9/00 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/14 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/0422 ,  F02D41/0245 ,  F02D41/028 ,  F02D2200/0802 ,  F02D2200/0804 ,  Y02A50/2325 ,  Y02T10/24 ,  Y02T10/47

    Abstract: Desulfation methods for an exhaust treatment system having a fuel reformer configured upstream of a LNT. Reductant is injected upstream of the fuel reformer. The reductant reacts within the reformer to generate heat, but the system is configured for some reductant to breakthrough and react in the LNT to generate further heat. This configuration allows the LNT to operate at temperatures higher the than first device and facilitates independent control of the LNT and first device temperatures. An outer loop controls the LNT temperature by issuing instructions to an inner loop that controls the reformer. Typically, the inner loop will pulse the reductant injection rate in order to limit the reformer temperature. The outer loop can pulses the loop on a longer time scale, resulting in two pulse periods. Through timing, a reformate peak from one period is made to overlap a temperature peak from a previous period.

    Abstract translation: 具有配置在LNT上游的燃料重整器的废气处理系统的脱硫方法。 在燃料重整器的上游注入还原剂。 还原剂在重整器内反应产生热量，但是该系统被配置为使一些还原剂在LNT中穿透并反应以产生进一步的热量。 该配置允许LNT在高于第一器件的温度下操作，并且促进对LNT和第一器件温度的独立控制。 外环通过向控制重整器的内循环发出指令来控制LNT温度。 通常，内循环将脉冲还原剂喷射速率以限制重整器温度。 外环可以在更长的时间尺度上对环路进行脉冲，从而产生两个脉冲周期。 通过计时，将一个时期的重组峰值与先前期间的温度峰值重叠。

    Exhaust cooling module for SCR catalysts
    6.
    发明授权
    Exhaust cooling module for SCR catalysts 失效
    SCR催化剂排气冷却模块

    公开(公告)号：US08479501B2

    公开(公告)日：2013-07-09

    申请号：US12762157

    申请日：2010-04-16

    Applicant: James Edward McCarthy, Jr.

    Inventor： James Edward McCarthy, Jr.

    IPC: F01N3/10

    CPC classification number: F01N3/0814 ,  F01N3/2033 ,  F01N3/2073 ,  F01N13/009 ,  F01N13/082 ,  F01N2240/30 ,  F01N2570/14 ,  F01N2610/03 ,  Y02A50/2325 ,  Y02A50/2344 ,  Y02T10/24 ,  Y02T10/26

    Abstract: An exhaust aftertreatment system having a NOX absorber-catalyst and an ammonia-SCR reactor. During regenerations, the NOX absorber-catalyst generates ammonia. The ammonia-SCR reactor captures this ammonia and later uses it to reduce NOX. A Venturi is provided in an exhaust conduit connecting the NOX absorber-catalyst to the ammonia-SCR reactor. The Venturi draws sufficient air to keep the ammonia-SCR reactor under lean conditions throughout the NOX absorber-catalyst regenerations. Maintaining lean conditions for the ammonia-SCR reactor in this manner mitigates poisoning of the ammonia-SCR reactor by hydrocarbons slipping from the NOX absorber-catalyst during the regenerations. Mitigating this poisoning improves the performance of the exhaust aftertreatment system and reduce the loss of useful ammonia to oxidation.

    Abstract translation: 具有NO x吸收剂 - 催化剂和氨-SCR反应器的排气后处理系统。 在再生过程中，NO x吸收剂 - 催化剂产生氨。 氨 - SCR反应器捕获这种氨，后来用它来还原NOX。 在连接NOX吸收剂 - 催化剂与氨-SCR反应器的排气导管中设置文丘里管。 文丘里管在NOX吸收器 - 催化剂再生过程中吸入足够的空气以将氨SCR反应器保持在贫条件下。 以这种方式维持氨-SCR反应器的贫乏条件通过在再生期间从NOX吸收剂 - 催化剂中滑落的烃来减轻氨-SCR反应器的中毒。 减轻这种中毒提高了排气后处理系统的性能，并减少了有用氨的氧化损失。

    Closed loop control of exhaust system fluid dosing
    8.
    发明授权
    Closed loop control of exhaust system fluid dosing 有权
    排气系统流体计量的闭环控制

    公开(公告)号：US08171721B2

    公开(公告)日：2012-05-08

    申请号：US11656194

    申请日：2007-01-22

    Applicant: Douglas Ernst Boddy ,  Mark Louis Dell′Eva ,  Eric O. Barrows ,  James Edward McCarthy, Jr. ,  John Robert Barla

    Inventor： Douglas Ernst Boddy ,  Mark Louis Dell′Eva ,  Eric O. Barrows ,  James Edward McCarthy, Jr. ,  John Robert Barla

    IPC: F01N3/00

    CPC classification number: F01N3/36 ,  F01N9/00 ,  F01N11/002 ,  F01N2240/30 ,  F01N2550/05 ,  F01N2560/08 ,  F01N2610/03 ,  F01N2610/14 ,  F01N2610/1453 ,  F01N2610/1473 ,  F02D2200/0602 ,  Y02T10/20 ,  Y02T10/47

    Abstract: An exhaust line fuel injection system and associated methods of operation and control are disclosed. The fuel passes through a regulating valve connected to a pressurized fuel source and an outlet connected to an exhaust system fuel supply line. The exhaust system fuel supply line is connected to a nozzle, which generally comprises a check-valve and is configured to inject the fuel into the exhaust line. Using a pressure measuring device, an indication of the exhaust system fuel supply line pressure is obtained. A controller provides control over the flow regulating valve using feedback from the pressure indication and a predetermined relationship between the flow rate through the nozzle and one of the exhaust system fuel supply line pressure and the pressure drop across the nozzle. The method can be implemented with a single pressure measuring device. The same pressure measurements, especially their frequency spectrum, can be used to detect system faults.

    Abstract translation: 公开了一种排气管路燃料喷射系统及相关操作和控制方法。 燃料通过连接到加压燃料源的调节阀和连接到排气系统燃料供应管线的出口。 排气系统燃料供给管线连接到喷嘴，喷嘴通常包括止回阀，并被配置为将燃料喷射到排气管线中。 使用压力测量装置，获得排气系统燃料供应管路压力的指示。 控制器使用来自压力指示的反馈以及通过喷嘴的流量与排气系统燃料供给管线压力和喷嘴两端的压降之间的预定关系来提供对流量调节阀的控制。 该方法可以用单个压力测量装置来实现。 相同的压力测量，特别是它们的频谱，可用于检测系统故障。

    Physical based LNT regeneration strategy
    9.
    发明授权
    Physical based LNT regeneration strategy 失效
    基于物理的LNT再生策略

    公开(公告)号：US08006480B2

    公开(公告)日：2011-08-30

    申请号：US11880950

    申请日：2007-07-25

    Applicant: James Edward McCarthy, Jr. ,  Chuan He

    Inventor： James Edward McCarthy, Jr. ,  Chuan He

    IPC: F01N3/00

    CPC classification number: F01N3/0885 ,  B01D53/9409 ,  B01D53/9495 ,  B01D2251/208 ,  B01D2258/012 ,  F01N3/0814 ,  F01N3/0871 ,  F01N3/2073 ,  F01N3/208 ,  F01N13/0097 ,  F01N2240/30 ,  F01N2560/026 ,  F01N2610/03 ,  F01N2610/146 ,  F01N2900/1621 ,  Y02T10/24

    Abstract: A lean NOX trap is a diesel exhaust aftertreatment system is selectively denitrated in a manner that addresses unreliability of NOX sensor data. According to one concept, data from a NOX is ignored or given decreased weight in a period immediately following a denitration. According to another concept, denitration is made contingent on both a first and a second criteria being met. The first criteria relates to the amount of NOX stored in the LNT or remaining NOX storage capacity of the LNT. The second criteria relates to the current performance of the exhaust treatment system, or a portion thereof, as determined from one or more measurements of NOX concentration in the exhaust. This reduces premature denitrations and associated unnecessary fuel expenditures resulting from inaccurate NOX concentration data and transient events.

    Abstract translation: 精益NOX捕集器是以解决NOX传感器数据的不可靠性的方式选择性地脱硝柴油机排气后处理系统。 根据一个概念，来自NOX的数据被忽略，或者在脱氮之后的时间段内减轻重量。 根据另一个概念，脱硝是根据符合第一和第二标准而进行的。 第一个标准涉及储存在LNT中的NOX量或LNT的剩余NOX储存容量。 第二标准涉及排气处理系统的当前性能，或其一部分，其由排气中的一氧化氮浓度的一个或多个测量结果确定。 这可以减少由于不准确的NOX浓度数据和瞬态事件导致的过早脱硝和相关的不必要的燃料费用。

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