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    System for fueling and feeding chemicals to internal combustion engines for NO.sub.x reduction
    5.
    发明授权
    System for fueling and feeding chemicals to internal combustion engines for NO.sub.x reduction 失效
    用于向内燃机加油和供给化学物质用于NOx还原的系统

    公开(公告)号：US5809774A

    公开(公告)日：1998-09-22

    申请号：US752344

    申请日：1996-11-19

    申请人： Jeremy D. Peter-Hoblyn ,  James M. Valentine ,  Theodore J. Tarabulski

    发明人： Jeremy D. Peter-Hoblyn ,  James M. Valentine ,  Theodore J. Tarabulski

    IPC分类号： B01D53/90 ,  B01D53/94 ,  F01N3/20 ,  F01N3/00

    CPC分类号： F01N3/36 ,  B01D53/90 ,  B01D53/9409 ,  B01D53/9495 ,  F01N3/035 ,  F01N3/20 ,  F01N3/2066 ,  F01N2240/30 ,  F01N2430/04 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/1426 ,  F01N2610/1473 ,  Y02T10/24

    摘要： Diesel and other lean-burn engines emit less NO.sub.x, when the of fuel comprises an emulsion of hydrocarbon fuel and an aqueous solution of a nitrogenous NO.sub.x -reducing reagent which is separated into its two principal portions prior to combustion. The hot exhaust gases produced by burning the fuel contain NO.sub.x, but the NO.sub.x is reduced by introducing the separated aqueous solution of nitrogenous NO.sub.x -reducing reagent into at least a portion of the exhaust gases and directing them to a catalyst for selective catalytic reduction of NO.sub.x. The fuel emulsion preferably comprises a continuous phase comprising diesel fuel and from about 1 to about 20% (most preferably, from about 2 to about 10%) of a discontinuous phase comprising an aqueous solution of nitrogenous NO.sub.x -reducing reagent. It is also preferred to include in the fuel a corrosion inhibitor and biocide, and optionally a lubricity additive and emulsifier.

    摘要翻译： 当燃料包含烃燃料的乳液和在燃烧之前被分离成其两个主要部分的含氮的还原NOx试剂的水溶液时，柴油和其它稀薄燃烧发动机排放较少的NOx。 通过燃烧燃料产生的热废气含有NOx，但是通过将分离的含氮NO x还原剂的水溶液引入至少一部分废气中并将其引导至用于选择性催化还原NOx的催化剂而将NOx还原 。 燃料乳剂优选包含包含柴油燃料的连续相和约1至约20％（最优选约2至约10％）的包含含氮NO x还原剂水溶液的不连续相。 还优选在燃料中包含腐蚀抑制剂和杀生物剂，以及任选的润滑添加剂和乳化剂。

    Mobile diesel selective catalytic reduction systems and methods
    7.
    发明授权
    Mobile diesel selective catalytic reduction systems and methods 失效
    移动式柴油选择性催化还原体系及方法

    公开(公告)号：US06941746B2

    公开(公告)日：2005-09-13

    申请号：US10718839

    申请日：2003-11-20

    申请人： Theodore J. Tarabulski ,  Jeffrey A. Brooks

    发明人： Theodore J. Tarabulski ,  Jeffrey A. Brooks

    IPC分类号： F01N3/20 ,  F01N13/02 ,  F01N3/00

    CPC分类号： F01N3/208 ,  F01N3/2885 ,  F01N3/2892 ,  F01N13/0097 ,  F01N2230/04 ,  F01N2240/20 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2560/07 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/146 ,  F01N2900/0408 ,  F01N2900/0412 ,  F01N2900/08 ,  F01N2900/1814 ,  Y02A50/2325 ,  Y02T10/24

    摘要： The present invention provides for the retrofitting diesel truck engines with a system to reduce NOx emissions. The SCR system of the present invention, including a controller, a reagent tank, and an injection system, is installed on a vehicle. A NOx detector is temporarily installed as part of the system. The vehicle is then operated to collect engine parameters including fuel injection timing, RPM, load, exhaust heat, exhaust flow rate, and the like, together with measurements of the NOx emissions under various operating conditions. Based on the recorded data at various operating conditions, a reagent injection strategy is developed and installed at the reagent injection controller. During vehicle operation, the injector injects reagent into the exhaust system based on control signals from the reagent injection controller in accordance with the injection strategy in order to reduce NOx emissions at the various operating conditions.

    摘要翻译： 本发明提供了一种用于减少NOx排放的系统来改进柴油卡车发动机。 本发明的SCR系统，包括控制器，试剂罐和注射系统，安装在车辆上。 作为系统的一部分临时安装NOx检测器。 然后操作车辆以收集包括燃料喷射正时，RPM，负载，排热，排气流量等的发动机参数，以及在各种操作条件下的NOx排放的测量。 基于各种操作条件下记录的数据，开发试剂注入策略并安装在试剂注射控制器上。 在车辆操作期间，喷射器根据喷射策略基于来自试剂喷射控制器的控制信号将试剂注入到排气系统中，以便在各种操作条件下减少NOx排放。