利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

53 条记录 (耗时 0.024 秒)

    Exhaust emission control device of internal combustion engine
    2.
    发明专利
    Exhaust emission control device of internal combustion engine 有权
    内燃机排气控制装置

    公开(公告)号：JP2006188985A

    公开(公告)日：2006-07-20

    申请号：JP2005001582

    申请日：2005-01-06

    申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

    发明人： YOSHIDA KOHEI ,  HIROTA SHINYA ,  NAKANO YASUAKI

    IPC分类号： F01N3/20 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/24

    CPC分类号： F02D41/0275 ,  B01D53/9422 ,  B01D53/949 ,  B01D53/9495 ,  B01D2251/20 ,  B01D2255/91 ,  F01N3/0807 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0885 ,  F01N13/009 ,  F01N2570/04 ,  F01N2570/14 ,  F01N2610/03 ,  F02D41/0285 ,  Y02A50/2344 ,  Y02T10/24

    摘要： PROBLEM TO BE SOLVED: To excellently treat NOx exhausted from an SOx collecting material, when restoring SOx collecting capacity of the SOx collecting material.
    SOLUTION: This exhaust emission control device has in an engine exhaust passage the SOx collecting material 25 for collecting SOx in exhaust gas, that is, the SOx collecting material for collecting SOx when an inside atmosphere of the SOx collecting material is a lean atmosphere and the temperature of the SOx collecting material is relatively low, and restoring the SOx collecting capacity when the temperature of the SOx collecting material becomes relatively high while maintaining the inside atmosphere of the SOx collecting material in the lean atmosphere; and has in the engine exhaust passage on the downstream side of the SOx collecting material, an NOx catalyst 37 for collecting and holding NOx when the inside atmosphere is the lean atmosphere and reducing and purifying the holding NOx when the inside atmosphere becomes a rich atmosphere. Control for restoring NOx collecting capacity of the NOx catalyst is started before starting control for restoring the SOx collecting capacity of the SOx collecting material when restoring the SOx collecting capacity of the SOx collecting material.
    COPYRIGHT: (C)2006,JPO&NCIPI

    摘要翻译： 要解决的问题：当恢复SOx收集材料的SOx收集能力时，优异地处理从SOx收集材料排出的NOx。 解决方案：该排气排放控制装置在发动机排气通道中具有用于收集废气中的SO x的SO x收集材料25，即当SO x收集材料的内部气氛为稀的SO x时用于收集SOx的SOx收集材料 SO x收集材料的温度相对较低，并且当SO x收集材料的温度变得相对较高时恢复SO x收集能力，同时保持SO x收集材料在稀薄气氛中的内部气氛; 并且在SO x收集材料的下游侧具有发动机排气通道，当内部气氛为稀薄气氛时收集并保持NOx的NOx催化剂37，并且当内部气氛成为浓气氛时，还原和净化保持NOx。 在恢复SOx收集材料的SOx收集能力之前开始控制以恢复SO x收集材料的SOx收集能力的开始控制，以恢复NOx催化剂的NOx收集能力。 版权所有（C）2006，JPO＆NCIPI

    Liquid reductant concentration measuring device and its method
    4.
    发明专利
    Liquid reductant concentration measuring device and its method 有权
    液体浓度测量装置及其方法

    公开(公告)号：JP2006138275A

    公开(公告)日：2006-06-01

    申请号：JP2004330075

    申请日：2004-11-15

    申请人： Nissan Diesel Motor Co Ltd ,  日産ディーゼル工業株式会社

    发明人： HIRATA MASANOBU ,  WATANABE YASUKUNI

    IPC分类号： F01N3/08 ,  B01D53/94 ,  F01N3/18 ,  F02D45/00 ,  G01N25/18

    CPC分类号： B01D53/9431 ,  B01D2251/20 ,  F01N3/206 ,  F01N13/009 ,  F01N13/0097 ,  Y02A50/2322

    摘要： PROBLEM TO BE SOLVED: To provide a liquid reductant concentration measuring method for performing highly accurate concentration measurement while discriminating the stopped condition of a vehicle with the least shaking of liquid reductant in a tank, which is optimum for measurement.
    SOLUTION: An ECU 9 of an exhaust emission control device uses a heat sensitive concentration sensor 11 for measuring the concentration of the liquid reductant stored in the tank 10. In the stopped condition of an engine, it starts measuring procedures in accordance with one of a sensing signal S1 for sensing the opening of a door 12, a sensing signal S2 for sensing the displacement (load) of a seat, and a sensing signal S3 for sensing the displacement of a cab 14 to perform concentration measurement with the heat sensitive concentration sensor 11. Namely, the measurement with the heat sensitive concentration sensor is executed during a time after a driver gets on the vehicle and starts the engine but before the vehicle runs.
    COPYRIGHT: (C)2006,JPO&NCIPI

    摘要翻译： 解决问题的方案：提供一种液体还原剂浓度测量方法，用于在罐中的液体还原剂振动最小的情况下识别车辆的停止状态，从而进行高精度的浓度测量，这对于测量是最佳的。 解决方案：废气排放控制装置的ECU9使用热敏浓度传感器11来测量储存在罐10中的液体还原剂的浓度。在发动机的停止状态下，它开始根据 用于感测门12的打开的感测信号S1中的一个，用于感测座椅的位移（负载）的感测信号S2，以及用于感测驾驶室14的位移以进行浓度测量的感测信号S3 也就是说，利用热敏感浓度传感器进行的测量在驾驶员驶入车辆并启动发动机之后但在车辆行驶之前的时间内执行。 版权所有（C）2006，JPO＆NCIPI

    Exhaust emission control system of internal combustion engine
    5.
    发明专利
    Exhaust emission control system of internal combustion engine 有权
    内燃机排气排放控制系统

    公开(公告)号：JP2006112348A

    公开(公告)日：2006-04-27

    申请号：JP2004301735

    申请日：2004-10-15

    申请人： Toyota Motor Corp ,  トヨタ自動車株式会社

    发明人： TOSHIOKA TOSHISUKE

    IPC分类号： F01N3/36 ,  B01D53/86 ,  B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N3/28

    CPC分类号： F01N3/0807 ,  B01D53/9431 ,  B01D2251/20 ,  F01N3/08 ,  F01N3/206 ,  F01N13/011 ,  Y02T10/24

    摘要： PROBLEM TO BE SOLVED: To accurately perform NOx reduction treatment by controlling the way of the dispersion of a reducer in an NOx catalyst in an exhaust emission control system in which the amount of exhaust gas flowing in the storage/reduction type NOx catalyst is reduced and NOx stored in the NOx catalyst is reduced by supplying the reducer into the NOx catalyst.
    SOLUTION: Air-fuel ratio detection means are disposed on the upstream side and downstream side of the storage/reduction type NOx catalyst. The adding time of the reducer is changed so that a difference between an air-fuel ratio detected by an air-fuel ratio detection means disposed on the upstream side of the NOx catalyst and an air-fuel ratio detected by an air-fuel ratio detection means disposed on the downstream thereof becomes an aimed value in a prescribed period after the amount of the exhaust gas flowing into the NOx catalyst is reduced.
    COPYRIGHT: (C)2006,JPO&NCIPI

    摘要翻译： 要解决的问题：通过控制排气排放控制系统中的NOx催化剂中的还原剂的分散方式来精确地进行NOx还原处理，其中在储存/还原型NOx催化剂中流动的排气量 通过将还原剂供给到NOx催化剂中而使NO x催化剂中所存储的NOx减少。 解决方案：空燃比检测装置设置在储存/还原型NOx催化剂的上游侧和下游侧。 减速机的添加时间发生变化，使得由设置在NOx催化剂的上游侧的空燃比检测装置检测到的空燃比与通过空燃比检测检测到的空燃比之间的差 在排入NOx吸收剂的废气量减少之后，在规定时间内设置在其下游的装置成为目标值。 版权所有（C）2006，JPO＆NCIPI