利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

87 条记录 (耗时 0.021 秒)

    EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE
    81.
    发明申请
    EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE 有权
    内燃机排气净化装置

    公开(公告)号：US20090301059A1

    公开(公告)日：2009-12-10

    申请号：US12309442

    申请日：2008-04-09

    申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Takekazu Itoh ,  Yutaka Tanai

    发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Takekazu Itoh ,  Yutaka Tanai

    IPC分类号： F01N11/00 ,  F01N3/10 ,  F01N9/00

    CPC分类号： F01N11/007 ,  B01D53/90 ,  B01D53/9495 ,  B01D2251/2067 ,  B01D2255/50 ,  B01D2257/404 ,  F01N3/2066 ,  F01N13/009 ,  F01N2550/03 ,  F01N2550/05 ,  F01N2610/02 ,  F01N2900/1818 ,  Y02T10/24 ,  Y02T10/47

    摘要： In an internal combustion engine, an NOX selective reduction catalyst (15) is arranged in the engine exhaust passage, and a urea aqueous solution feed valve (17) is arranged in the engine exhaust passage upstream of the NOX selective reduction catalyst (15). Based on the detections results of an NOX purification rate detecting means for detecting the NOX purification rate by the NOX selective reduction catalyst (15), a urea aqueous solution feed amount detecting means for detecting the amount of feed of the urea aqueous solution, and a urea aqueous solution concentration detecting means for detecting the concentration of the urea aqueous solution, abnormalities in the NOX selective reduction catalyst (15), urea aqueous solution feed system, and urea aqueous solution are judged.

    摘要翻译： 在内燃机中，在发动机排气通路内配置有NO x选择还原催化剂（15），在NOX选择还原催化剂（15）的上游的发动机排气通路内配置有尿素水溶液供给阀（17）。 基于用于通过NO x选择还原催化剂（15）检测NO x净化率的NO X净化率检测单元的检测结果，检测尿素水溶液的进料量的尿素水溶液进料量检测单元，以及 尿素水溶液浓度检测装置，用于检测尿素水溶液的浓度，NOX选择还原催化剂（15），尿素水溶液进料系统和尿素水溶液中的异常。

    Exhaust gas purification system for internal combustion engine
    82.
    发明申请
    Exhaust gas purification system for internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号：US20090151332A1

    公开(公告)日：2009-06-18

    申请号：US12227376

    申请日：2007-07-12

    申请人： Shunsuke Toshioka ,  Takamitsu Asanuma ,  Morio Narita

    发明人： Shunsuke Toshioka ,  Takamitsu Asanuma ,  Morio Narita

    IPC分类号： F01N9/00

    CPC分类号： F02D41/0275 ,  F01N3/0885 ,  F01N3/106 ,  F01N11/00 ,  F01N2550/05 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2610/03 ,  F01N2610/1493 ,  F01N2900/0421 ,  F02B37/00 ,  F02D41/1454 ,  Y02T10/20 ,  Y02T10/47

    摘要： The task for the present invention is to reduce more of an oxide that is stored in a NOx storage reduction catalyst, even in a case where a clogging has occurred in a reducing agent adding valve that is provided in an exhaust passage of an internal combustion engine. The present invention is provided with rich spike control performing means that, when an oxide that is stored in the NOx storage reduction catalyst is reduced, performs a rich spike control and that, when lowering the air-fuel ratio in the exhaust gas, performs addition of a reducing agent by the reducing agent adding valve multiple times, which is performed when a crank angle of the internal combustion engine is in a specified range. When the clogging has occurred in the reducing agent adding valve, the number of times the air-fuel ratio in the exhaust gas is lowered while the rich spike control is being performed by the rich spike control performing means is increased.

    摘要翻译： 本发明的任务是减少存储在NOx储存还原催化剂中的氧化物，即使在设置在内燃机的排气通道中的还原剂添加阀中发生堵塞的情况下 。 本发明提供了丰富的尖峰控制执行装置，当减少存储在NOx存储还原催化剂中的氧化物时，执行浓穗控制，并且当降低排气中的空燃比时，进行附加 通过还原剂添加阀多次的还原剂，其在内燃机的曲柄角处于规定范围内时进行。 当还原剂添加阀发生堵塞时，增加了由富穗控制执行装置进行富穗控制时排气中的空燃比降低的次数。

    Device for Purifying Exhaust Gas of an Internal Combustion Engine
    83.
    发明申请
    Device for Purifying Exhaust Gas of an Internal Combustion Engine 有权
    净化内燃机废气的装置

    公开(公告)号：US20080314025A1

    公开(公告)日：2008-12-25

    申请号：US11885153

    申请日：2006-10-04

    申请人： Shunsuke Toshioka ,  Takamitsu Asanuma

    发明人： Shunsuke Toshioka ,  Takamitsu Asanuma

    IPC分类号： F01N9/00

    CPC分类号： B01D53/9431 ,  B01D53/9495 ,  B01D2255/91 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/0871 ,  F01N9/00 ,  F01N2550/03 ,  F01N2560/026 ,  F01N2570/14 ,  F01N2610/03 ,  F01N2610/146 ,  Y02A50/2344 ,  Y02T10/47

    摘要： A device for purifying exhaust gas of an internal combustion engine comprising a NOx catalyst device, fuel feeding means for feeding additional fuel into combusted gas flowing into the NOx catalyst device during the regeneration treatment, and a NOx concentration sensor arranged on the exhaust downstream of the NOx catalyst device, wherein when the NOx concentration detected by the NOx concentration sensor is lower than a preset concentration during the regeneration treatment of this time, the amount of NOx absorbed by the NOx catalyst device during a preset period until the regeneration treatment of the next time is estimated by utilizing the NOx concentration sensor, and when the absorbed amount of NOx is smaller than a preset amount, it is decided that the amount of additional fuel fed during the regeneration processing of this time had been abnormally decreased.

    摘要翻译： 一种用于净化内燃机废气的装置，包括NOx催化装置，用于在再生处理期间将附加燃料供给到流入NOx催化剂装置的燃烧气体中的燃料供给装置，以及配置在排气下游的排气口的NOx浓度传感器 NO x催化剂装置，其中，当在该再生处理期间，由NOx浓度传感器检测到的NOx浓度低于预先设定的浓度时，由NOx催化剂装置吸收的NOx的量在下一次的再生处理之前的预设期间内 通过利用NOx浓度传感器来估计时间，并且当NOx的吸收量小于预设量时，判定在该时间的再生处理中供给的附加燃料量已经异常地降低。