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    Exhaust purification system for internal combustion engine
    43.
    发明授权
    Exhaust purification system for internal combustion engine 有权
    内燃机排气净化系统

    公开(公告)号：US07832199B2

    公开(公告)日：2010-11-16

    申请号：US11631778

    申请日：2005-10-14

    申请人： Shunsuke Toshioka

    发明人： Shunsuke Toshioka

    IPC分类号： F01N3/00 ,  F01N3/10

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

    摘要： Art is provided for an exhaust purification system for an internal combustion engine, which decreases an amount of exhaust flowing to a storage-reduction type NOx catalyst and supplies a reducer to the NOx catalyst so as to reduce NOx stored in the NOx catalyst, wherein the manner in which the reducer is dispersed in the NOx catalyst can be controlled to achieve more reliable execution of a NOx reduction treatment. Air-fuel ratio detecting unit is disposed upstream and downstream of the storage-reduction type NOx catalyst. During a predetermined period subsequent to decreasing an amount of exhaust flowing to the NOx catalyst and adding the reducer to the exhaust, a reducer-adding timing is changed such that a difference between an air-fuel ratio detected by the air-fuel ratio detecting unit disposed upstream of the NOx catalyst and an air-fuel ratio detected by the air-fuel ratio detecting unit disposed downstream of the NOx catalyst becomes a predetermined target value.

    摘要翻译： 提供了一种用于内燃机的排气净化系统的技术，其减少了流向储存还原型NOx催化剂的排气量并将还原剂供应到NOx催化剂，以便减少存储在NOx催化剂中的NOx，其中 可以控制还原剂分散在NOx催化剂中的方式，以实现更可靠地执行NOx还原处理。 空燃比检测单元设置在储存还原型NOx催化剂的上游和下游。 在减少流向NOx催化剂的排气量并将还原剂添加到排气之后的预定时段期间，改变减速器附加正时，使得由空燃比检测单元检测的空燃比之间的差异 设置在NOx催化剂的上游侧，由设置在NOx催化剂下游的空燃比检测部检测出的空燃比成为规定的目标值。

    Device for purifying exhaust gas of an internal combustion engine
    44.
    发明授权
    Device for purifying exhaust gas of an internal combustion engine 有权
    一种用于净化内燃机废气的装置

    公开(公告)号：US07752838B2

    公开(公告)日：2010-07-13

    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： F01N3/00

    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。

    Exhaust Purification System For Internal Combustion Engine
    45.
    发明申请
    Exhaust Purification System For Internal Combustion Engine 有权
    内燃机排气净化系统

    公开(公告)号：US20080092530A1

    公开(公告)日：2008-04-24

    申请号：US11631778

    申请日：2005-10-14

    申请人： Shunsuke Toshioka

    发明人： Shunsuke Toshioka

    IPC分类号： F01N3/10

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

    摘要： Art is provided for an exhaust purification system for an internal combustion engine, which decreases an amount of exhaust flowing to a storage-reduction type NOx catalyst and supplies a reducer to the NOx catalyst so as to reduce NOx stored in the NOx catalyst, wherein the manner in which the reducer is dispersed in the NOx catalyst can be controlled to achieve more reliable execution of a NOx reduction treatment. Air-fuel ratio detecting unit is disposed upstream and downstream of the storage-reduction type NOx catalyst. During a predetermined period subsequent to decreasing an amount of exhaust flowing to the NOx catalyst and adding the reducer to the exhaust, a reducer-adding timing is changed such that a difference between an air-fuel ratio detected by the air-fuel ratio detecting unit disposed upstream of the NOx catalyst and an air-fuel ratio detected by the air-fuel ratio detecting unit disposed downstream of the NOx catalyst becomes a predetermined target value.

    摘要翻译： 提供了一种用于内燃机的排气净化系统的技术，其减少了流向储存还原型NOx催化剂的排气量并将还原剂供应到NOx催化剂，以便减少存储在NOx催化剂中的NOx，其中 可以控制还原剂分散在NOx催化剂中的方式，以实现更可靠地执行NOx还原处理。 空燃比检测单元设置在储存还原型NOx催化剂的上游和下游。 在减少流向NOx催化剂的排气量并将还原剂添加到排气之后的预定时段期间，改变减速器附加正时，使得由空燃比检测单元检测的空燃比之间的差异 设置在NOx催化剂的上游侧，由设置在NOx催化剂下游的空燃比检测部检测出的空燃比成为规定的目标值。

    Exhaust temperature raising apparatus and method for internal combustion engine
    50.
    发明授权
    Exhaust temperature raising apparatus and method for internal combustion engine 有权
    内燃机排气升温装置及方法

    公开(公告)号：US06634167B1

    公开(公告)日：2003-10-21

    申请号：US09695977

    申请日：2000-10-26

    申请人： Shunsuke Toshioka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Toshiaki Tanaka

    发明人： Shunsuke Toshioka ,  Shinya Hirota ,  Takamitsu Asanuma ,  Toshiaki Tanaka

    IPC分类号： F01N300

    CPC分类号： F01N3/0842 ,  F01N3/0871 ,  F01N3/2006 ,  F01N3/22 ,  F01N2260/14 ,  F02D9/04 ,  F02D41/024 ,  F02D41/3029 ,  F02D41/3076 ,  Y02A50/2322 ,  Y02T10/26

    摘要： An exhaust temperature raising apparatus for an internal combustion engine includes an exhaust throttle valve that adjusts an amount of flow of an exhaust gas flowing in an exhaust passage, a valve control device for controlling the exhaust throttle valve to a substantially completely closed state at a time when an amount of an unburned fuel component contained in the exhaust gas is to be reduced, an engine air-fuel ratio control device for operating the internal combustion engine at a theoretical air-fuel ratio or a fuel-excess air-fuel ratio when the exhaust throttle valve is controlled to the substantially completely closed state by the valve control device, and a secondary air supply device for supplying a secondary air to an upstream portion of the exhaust passage when the exhaust throttle valve is controlled to the substantially completely closed state by the valve control device.

    摘要翻译： 用于内燃机的排气温度升高装置包括排气节流阀，其调节在排气通道中流动的废气的流量，用于一次控制排气节流阀至基本完全关闭状态的阀控制装置 当要减少包含在废气中的未燃烧燃料成分的量时，用于在理论空燃比或燃料过剩空燃比下操作内燃机的发动机空燃比控制装置 排气节流阀通过阀控制装置控制到基本上完全关闭状态;以及二次空气供应装置，用于当排气节流阀被控制到基本上完全关闭状态时，将二次空气供应到排气通道的上游部分 阀门控制装置。