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    Sulfur purge control device for an internal combustion engine
    1.
    发明申请
    Sulfur purge control device for an internal combustion engine 有权
    用于内燃机的硫吹扫控制装置

    公开(公告)号：US20080028749A1

    公开(公告)日：2008-02-07

    申请号：US11882255

    申请日：2007-07-31

    申请人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada ,  Nobuhiro Komatsu

    发明人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada ,  Nobuhiro Komatsu

    IPC分类号： F01N3/20

    CPC分类号： F02D41/0285 ,  F01N3/0885 ,  F01N13/009 ,  F01N13/0097 ,  F02B31/06 ,  F02B2275/14 ,  F02D41/1441 ,  F02D2200/0818 ,  F02M26/05 ,  F02M26/15 ,  F02M26/25 ,  Y02T10/20

    摘要： In a control device for an internal combustion engine provided with a NOX catalytic converter in an exhaust passage thereof, the progress of sulfur purging is computed from the consumption of reducing agent contained in the exhaust gas in the NOX catalytic converter. This computation may be based on the air fuel ratio of exhaust gas upstream of the NOX catalytic converter and the estimated consumption of the reducing agent contained in the exhaust gas or on the difference between the air fuel ratios of exhaust gas upstream and downstream of the NOX catalytic converter. In either case, the accuracy can be improved by taking into account the space velocity of the exhaust gas.

    摘要翻译： 在其排气通路中设置有NO x催化转化器的内燃机的控制装置中，根据NO x催化转化器的废气中所含的还原剂的消耗量计算出硫吹扫的进度。 该计算可以基于NO x催化转化器上游排气的空燃比和废气中所含还原剂的估计消耗量，或NOX上游和下游排气的空燃比之差 催化转化器。 在这两种情况下，通过考虑废气的空间速度可以提高精度。

    Sulfur purge control device for an internal combustion engine
    2.
    发明授权
    Sulfur purge control device for an internal combustion engine 有权
    用于内燃机的硫吹扫控制装置

    公开(公告)号：US08028518B2

    公开(公告)日：2011-10-04

    申请号：US11882255

    申请日：2007-07-31

    申请人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada ,  Nobuhiro Komatsu

    发明人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada ,  Nobuhiro Komatsu

    IPC分类号： F01N3/00

    CPC分类号： F02D41/0285 ,  F01N3/0885 ,  F01N13/009 ,  F01N13/0097 ,  F02B31/06 ,  F02B2275/14 ,  F02D41/1441 ,  F02D2200/0818 ,  F02M26/05 ,  F02M26/15 ,  F02M26/25 ,  Y02T10/20

    摘要： In a control device for an internal combustion engine provided with a NOX catalytic converter in an exhaust passage thereof, the progress of sulfur purging is computed from the consumption of reducing agent contained in the exhaust gas in the NOX catalytic converter. This computation may be based on the air fuel ratio of exhaust gas upstream of the NOX catalytic converter and the estimated consumption of the reducing agent contained in the exhaust gas or on the difference between the air fuel ratios of exhaust gas upstream and downstream of the NOX catalytic converter. In either case, the accuracy can be improved by taking into account the space velocity of the exhaust gas.

    摘要翻译： 在其排气通路中设置有NO x催化转化器的内燃机的控制装置中，根据NO x催化转化器的废气中所含的还原剂的消耗量计算出硫吹扫的进度。 该计算可以基于NO x催化转化器上游排气的空燃比和废气中所含还原剂的估计消耗量，或NOX上游和下游排气的空燃比之差 催化转化器。 在这两种情况下，通过考虑废气的空间速度可以提高精度。

    Sulfur purge control device for an internal combustion engine
    3.
    发明授权
    Sulfur purge control device for an internal combustion engine 失效
    用于内燃机的硫吹扫控制装置

    公开(公告)号：US07993582B2

    公开(公告)日：2011-08-09

    申请号：US11882406

    申请日：2007-08-01

    申请人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada

    发明人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada

    IPC分类号： G01N21/00 ,  F01N1/00 ,  G01M15/00 ,  G01N7/00

    CPC分类号： F02D41/0285 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0885 ,  F01N2560/025 ,  F01N2560/06 ,  F02B37/00 ,  F02D41/0047 ,  F02D41/405 ,  F02D2200/0802 ,  Y02T10/44

    摘要： Provided is a control device for an internal combustion engine that can execute a sulfur purge in a favorable manner under all conditions without complicating the control action or the engine structure. The process comprises detecting a temperature of the NOx catalytic converter, detecting an exhaust air fuel ratio in the catalytic converter, computing a target exhaust air fuel ratio according to a detected temperature of the NOx catalytic converter, and controlling a fuel injection valve so as to make an actual exhaust fuel ratio agree with the target exhaust air fuel ratio. If the temperature of the NOx catalytic converter is not high enough to enable a sulfur purge, a temperature increase control is executed to increase the temperature of the NOx catalytic converter by suitably changing various engine parameters.

    摘要翻译： 提供一种用于内燃机的控制装置，其可以在所有条件下以良好的方式执行硫吹扫，而不会使控制动作或发动机结构复杂化。 该方法包括检测NOx催化转化器的温度，检测催化转化器中的排气空燃比，根据NOx催化转化器的检测温度计算目标排气空燃比，并控制燃料喷射阀，以便 使实际的排气燃料比与目标排气空燃比一致。 如果NOx催化转化器的温度不足以实现硫吹扫，则通过适当地改变各种发动机参数来执行升温控制以增加NOx催化转化器的温度。

    Exhaust gas purifying apparatus for internal combustion engine
    4.
    发明授权
    Exhaust gas purifying apparatus for internal combustion engine 有权
    内燃机用废气净化装置

    公开(公告)号：US07827783B2

    公开(公告)日：2010-11-09

    申请号：US11905443

    申请日：2007-10-01

    申请人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada

    发明人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0807 ,  F01N3/035 ,  F01N3/0842 ,  F01N11/002 ,  F01N11/007 ,  F01N13/009 ,  F01N2560/06 ,  F01N2560/14 ,  F02B37/00 ,  F02D41/024 ,  F02D41/028 ,  F02D41/405 ,  F02D2200/0802 ,  F02D2200/0818 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/47

    摘要： An exhaust gas purifying apparatus for an internal combustion engine having a NOx removing device provided in an exhaust system of the engine and at least one fuel injector for injecting fuel into a combustion chamber of the engine. A temperature of the NOx removing device is detected and a regeneration process, which removes sulfur oxide accumulated in the NOx removing device, is performed. The regeneration process is performed by performing at least one post injection after performing a main injection by the at least one fuel injector to raise a temperature of the NOx removing device or by increasing a main injection amount of fuel to raise the temperature of the NOx removing device without performing the post injection. The exhaust gases are then controlled to flow into the NOx removing device in the reducing state.

    摘要翻译： 一种用于内燃机的废气净化装置，其具有设置在发动机的排气系统中的NOx去除装置和至少一个用于将燃料喷射到发动机的燃烧室中的燃料喷射器。 检测NOx去除装置的温度，并且执行去除积存在NOx去除装置中的硫氧化物的再生处理。 通过在由至少一个燃料喷射器执行主喷射之后执行至少一个后喷射以升高NOx去除装置的温度或者通过增加燃料的主喷射量以提高NOx去除的温度来执行再生过程 设备，而不执行后注入。 然后控制废气以还原状态流入NOx去除装置。

    Exhaust gas purifying apparatus for internal combustion engine
    5.
    发明申请
    Exhaust gas purifying apparatus for internal combustion engine 有权
    内燃机用废气净化装置

    公开(公告)号：US20080092529A1

    公开(公告)日：2008-04-24

    申请号：US11905443

    申请日：2007-10-01

    申请人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada

    发明人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada

    IPC分类号： F01N3/18 ,  G06F19/00

    CPC分类号： F01N3/0807 ,  F01N3/035 ,  F01N3/0842 ,  F01N11/002 ,  F01N11/007 ,  F01N13/009 ,  F01N2560/06 ,  F01N2560/14 ,  F02B37/00 ,  F02D41/024 ,  F02D41/028 ,  F02D41/405 ,  F02D2200/0802 ,  F02D2200/0818 ,  Y02T10/26 ,  Y02T10/44 ,  Y02T10/47

    摘要： An exhaust gas purifying apparatus for an internal combustion engine having a NOx removing device provided in an exhaust system of the engine and at least one fuel injector for injecting fuel into a combustion chamber of the engine. A temperature of the NOx removing device is detected and a regeneration process, which removes sulfur oxide accumulated in the NOx removing device, is performed. The regeneration process is performed by performing at least one post injection after performing a main injection by the at least one fuel injector to raise a temperature of the NOx removing device or by increasing a main injection amount of fuel to raise the temperature of the NOx removing device without performing the post injection. The exhaust gases are then controlled to flow into the NOx removing device in the reducing state.

    摘要翻译： 一种用于内燃机的废气净化装置，其具有设置在发动机的排气系统中的NOx去除装置和至少一个用于将燃料喷射到发动机的燃烧室中的燃料喷射器。 检测NOx去除装置的温度，并且执行去除积存在NOx去除装置中的硫氧化物的再生处理。 通过在由至少一个燃料喷射器执行主喷射之后执行至少一个后喷射以升高NOx去除装置的温度或者通过增加燃料的主喷射量以提高NOx去除的温度来执行再生过程 设备，而不执行后注入。 然后控制废气以还原状态流入NOx去除装置。

    Sulfur purge control device for an internal combustion engine
    6.
    发明申请
    Sulfur purge control device for an internal combustion engine 失效
    用于内燃机的硫吹扫控制装置

    公开(公告)号：US20080039975A1

    公开(公告)日：2008-02-14

    申请号：US11882406

    申请日：2007-08-01

    申请人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada

    发明人： Hisao Haga ,  Norio Suzuki ,  Katsuji Wada

    IPC分类号： F02D41/30 ,  F01N3/18

    CPC分类号： F02D41/0285 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0885 ,  F01N2560/025 ,  F01N2560/06 ,  F02B37/00 ,  F02D41/0047 ,  F02D41/405 ,  F02D2200/0802 ,  Y02T10/44

    摘要： Provided is a control device for an internal combustion engine that can execute a sulfur purge in a favorable manner under all conditions without complicating the control action or the engine structure. The process comprises detecting a temperature of the NOx catalytic converter, detecting an exhaust air fuel ratio in the catalytic converter, computing a target exhaust air fuel ratio according to a detected temperature of the NOx catalytic converter, and controlling a fuel injection valve so as to make an actual exhaust fuel ratio agree with the target exhaust air fuel ratio. If the temperature of the NOx catalytic converter is not high enough to enable a sulfur purge, a temperature increase control is executed to increase the temperature of the NOx catalytic converter by suitably changing various engine parameters.

    摘要翻译： 提供一种用于内燃机的控制装置，其可以在所有条件下以良好的方式执行硫吹扫，而不会使控制动作或发动机结构复杂化。 该方法包括检测NOx催化转化器的温度，检测催化转化器中的排气空燃比，根据NOx催化转化器的检测温度计算目标排气空燃比，并控制燃料喷射阀，以便 使实际的排气燃料比与目标排气空燃比一致。 如果NOx催化转化器的温度不足以实现硫吹扫，则通过适当地改变各种发动机参数来执行升温控制以增加NOx催化转化器的温度。

    EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    7.
    发明申请
    EXHAUST EMISSION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE 失效
    用于内燃机的排气排放控制装置

    公开(公告)号：US20100275581A1

    公开(公告)日：2010-11-04

    申请号：US12811817

    申请日：2008-11-18

    申请人： Katsuji Wada ,  Shinya Ishimaru ,  Jun Iwamoto ,  Nobuhiro Komatsu

    发明人： Katsuji Wada ,  Shinya Ishimaru ,  Jun Iwamoto ,  Nobuhiro Komatsu

    IPC分类号： F01N11/00 ,  F01N3/10 ,  F02M25/06 ,  F01N3/02 ,  F01N3/00

    CPC分类号： B01D53/9409 ,  B01D53/9445 ,  B01D2251/202 ,  B01D2251/204 ,  B01D2255/1021 ,  B01D2255/1025 ,  B01D2255/206 ,  B01D2255/502 ,  B01D2255/90 ,  B01D2255/908 ,  F01N3/0814 ,  F01N3/0885 ,  F01N3/2882 ,  F01N13/009 ,  F01N2240/30 ,  F01N2570/14 ,  F01N2610/03 ,  F02D41/047 ,  F02D41/064 ,  F02D41/123 ,  F02D41/1446 ,  F02D2200/0804 ,  Y02A50/2341 ,  Y02A50/2344 ,  Y02T10/22 ,  Y02T10/42

    摘要： Provided is an exhaust emission control device for an internal combustion engine capable of preventing NOx purification performance from degrading according to the operating condition. The exhaust emission control device comprises an NOx purification catalyst for adsorbing or occluding NOx in exhaust emissions and reducing the NOx, which is provided in an exhaust pipe (4), a catalyst converter (31) for continuously reducing the NOx in the exhaust emissions by using a reducing gas, which is provided in the exhaust pipe (4), a fuel reformer (50) for reforming fuel to manufacture a reformed gas containing hydrogen and carbon monoxide and supplying the reformed gas as the reducing gas from an introduction port (14) provided on the upstream side of the NOx purification catalyst (33) and the catalyst converter (31) of the exhaust pipe (4), which is provided separately from the exhaust pipe (4), an operating condition detecting means for detecting the operating condition of an engine, and an enriching means (40) for enriching the exhaust air-fuel ratio. The enriching means enriches the exhaust air-fuel ratio by supplying the reducing gas into the exhaust pipe (4) by using the fuel reformer (50) when the operating condition detected by the operating condition detecting means is a high-load operating condition.

    摘要翻译： 本发明提供一种能够防止NOx净化性能根据运行条件劣化的内燃机的废气排放控制装置。 废气排放控制装置包括用于吸收或吸收废气排放中的NOx并且还原设置在排气管（4）中的NOx的NOx净化催化剂，催化剂转化器（31），用于连续地还原废气排放物中的NOx 使用设置在排气管（4）中的还原气体，用于重整燃料的燃料重整器（50），以制造含有氢和一氧化碳的重整气体，并从引入口（14）供给作为还原气体的重整气体 ）设置在与排气管（4）分开设置的排气管（4）的NOx净化催化剂（33）和催化剂转化器（31）的上游侧，操作条件检测装置 发动机的状态，以及用于丰富排气空燃比的浓缩装置（40）。 当由操作条件检测装置检测到的操作条件是高负载运行条件时，通过使用燃料重整器（50）将还原气体供应到排气管（4）中，富集装置丰富了排气空燃比。

    Exhaust emission control device and method for internal combustion engine, and engine control unit
    10.
    发明授权
    Exhaust emission control device and method for internal combustion engine, and engine control unit 失效
    用于内燃机和发动机控制单元的废气排放控制装置和方法

    公开(公告)号：US08141349B2

    公开(公告)日：2012-03-27

    申请号：US11979169

    申请日：2007-10-31

    申请人： Tomoko Morita ,  Norio Suzuki ,  Katsuji Wada

    发明人： Tomoko Morita ,  Norio Suzuki ,  Katsuji Wada

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0871 ,  F01N3/0814 ,  F01N3/0842 ,  F01N9/005 ,  F01N11/002 ,  F01N13/009 ,  F01N2560/025 ,  F01N2560/14 ,  F02B29/0437 ,  F02B31/06 ,  F02B37/22 ,  F02D41/0275 ,  F02M26/05 ,  F02M2026/009 ,  Y02T10/24 ,  Y02T10/47

    摘要： An exhaust emission control device for an internal combustion engine, which is capable of supplying a just enough amount of reducing agent to the NOx catalyst even when a catalyst is provided on an upstream side of the NOx catalyst. A catalyst and a NOx catalyst are disposed at respective upstream and downstream locations in an exhaust system, for purifying NOx and for trapping NOx under an oxidizing atmosphere and reducing the NOx under a reducing atmosphere, respectively. An air-fuel sensor is disposed between the catalyst and the NOx catalyst. A reducing agent is supplied to an upstream side of the catalyst, to control exhaust gases such that the gases form the reducing atmosphere. To determine time of termination of NOx reduction control, an amount of reducing agent supplied to the NOx catalyst is calculated, and calculation of the amount of reducing agent is started when the air-fuel ratio has converged within a vicinity of a target air-fuel ratio.

    摘要翻译： 即使在NOx催化剂的上游侧设置有催化剂，也能够向NOx催化剂供给足够量的还原剂的内燃机废气排放控制装置。 催化剂和NOx催化剂设置在排气系统中的各个上游和下游位置，用于净化NOx并在氧化气氛下捕获NOx，并在还原气氛下还原NOx。 在催化剂和NOx催化剂之间设置有空气 - 燃料传感器。 将还原剂供给到催化剂的上游侧，以控制废气，使得气体形成还原气氛。 为了确定NOx还原控制的终止时间，计算供给到NOx催化剂的还原剂的量，并且当空燃比收敛在目标空气燃料附近时开始还原剂的量的计算 比。