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    Exhaust emission control system of an internal combustion engine
    1.
    再颁专利
    Exhaust emission control system of an internal combustion engine 有权
    内燃机废气排放控制系统

    公开(公告)号：USRE42156E1

    公开(公告)日：2011-02-22

    申请号：US10410386

    申请日：2003-04-10

    申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Satoshi Iguchi ,  Shunsuke Toshioka

    发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Satoshi Iguchi ,  Shunsuke Toshioka

    IPC分类号： F01N3/00

    CPC分类号： B01D53/9454 ,  B01D53/949 ,  F01N3/0205 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/0885 ,  F01N3/2093 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/16 ,  F01N2250/12 ,  F01N2560/026 ,  F01N2570/04 ,  Y02T10/22

    摘要： An exhaust emission control system of an internal combustion engine desorbs SOx by reversing a flow of an exhaust gas through an NOx storage-reduction catalyst, of which a structure is simplified as follows. A first exhaust pipe connected to an engine is connected to a first port of an emission switching valve having four ports. A second exhaust pipe 10, through which the exhaust gas is discharged into the atmospheric air, is connected to a second port, a third exhaust pipe connected to an inlet of a catalytic converter is connected to a third port. A fourth exhaust pipe connected to an outlet of the catalytic converter 30 is connected to a fourth port. When the emission switching valve is set in a forward flow position, the first exhaust pipe is connected to the third exhaust pipe, and the second exhaust pipe is connected to the fourth exhaust pipe, whereby the exhaust gas flows toward the outlet from the inlet within the catalytic converter. When the emission switching valve is set in a backward flow position, the first exhaust pipe is connected to the fourth exhaust pipe, and the second exhaust pipe is connected to the third exhaust pipe, whereby the exhaust gas flows toward the inlet from the outlet within the catalytic converter.

    摘要翻译： 内燃机的废气排放控制系统通过将废气流通过NOx吸留还原催化剂反转来解吸SOx，其结构简化如下。 连接到发动机的第一排气管连接到具有四个端口的排放切换阀的第一端口。 将废气排放到大气中的第二排气管10连接到第二端口，连接到催化转化器的入口的第三排气管连接到第三端口。 连接到催化转化器30的出口的第四排气管连接到第四端口。 当排放切换阀设置在正向流动位置时，第一排气管连接到第三排气管，第二排气管连接到第四排气管，由此排气从入口内的出口流动 催化转化器。 当排放切换阀设置在向后流动位置时，第一排气管连接到第四排气管，第二排气管连接到第三排气管，由此排气从出口内的入口流入 催化转化器。

    Exhaust temperature raising apparatus and method for internal combustion engine
    4.
    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。

    Exhaust gas purification device of internal combustion engine
    7.
    发明授权
    Exhaust gas purification device of internal combustion engine 失效
    内燃机废气净化装置

    公开(公告)号：US06708486B2

    公开(公告)日：2004-03-23

    申请号：US10259560

    申请日：2002-09-30

    申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Shunsuke Toshioka

    发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Shunsuke Toshioka

    IPC分类号： F01N300

    CPC分类号： F02D41/0275 ,  B01D53/9431 ,  B01D53/9495 ,  F01N3/025 ,  F01N3/032 ,  F01N3/035 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/0878 ,  F01N13/011 ,  F02B37/00 ,  F02M26/05 ,  F02M26/23 ,  Y02T10/24 ,  Y10S55/30

    摘要： A pair of particulate filters arranged in parallel in an exhaust passage and a combustion device for supplying to the filters exhaust gas having a temperature elevation capability higher than the temperature elevation capability of the engine exhaust gas able to raise the filter temperature are provided. An NOx catalyst and oxidizing substance are carried on each filter. When the NOx absorbed in an NOx catalyst should be reduced, the flow of engine exhaust gas into the filter carrying the NOx catalyst for reduction of the NOx is suppressed and a rich air-fuel ratio exhaust gas is supplied from the combustion device to the filter so that the filter temperature is maintained higher than a particulate continuous oxidation temperature in the NOx reduction temperature range.

    摘要翻译： 提供一对平行排列在排气通道中的颗粒过滤器和用于向过滤器供给具有高于能够提高过滤器温度的发动机废气的升温能力的升温能力的废气的燃烧装置。 每个过滤器上都装有NOx催化剂和氧化物质。 当减少NOx催化剂中吸收的NOx时，抑制发动机废气流入携带用于还原NOx的NOx催化剂的过滤器的流量，并且将浓空气燃料比废气从燃烧装置供给到过滤器 使得过滤器温度保持高于NOx还原温度范围内的颗粒连续氧化温度。

    Exhaust emission control device of internal combustion engine
    8.
    发明授权
    Exhaust emission control device of internal combustion engine 有权
    内燃机废气排放控制装置

    公开(公告)号：US06502391B1

    公开(公告)日：2003-01-07

    申请号：US09890216

    申请日：2001-07-24

    申请人： Shinya Hirota ,  Shunsuke Toshioka ,  Toshiaki Tanaka

    发明人： Shinya Hirota ,  Shunsuke Toshioka ,  Toshiaki Tanaka

    IPC分类号： F01N300

    CPC分类号： F01N3/2053 ,  F01N3/0814 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0878 ,  F01N3/0885 ,  F01N3/2066 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/011 ,  F01N2430/085 ,  F01N2570/04 ,  F01N2570/14 ,  Y02A50/2325 ,  Y02A50/2344 ,  Y02T10/24

    摘要： An object of the present invention is to improve reliability of exhaust emission purification in an exhaust emission purifying device having an NOx catalyst and an bypass path bypassing the NOx catalyst. The present invention provides an exhaust emission purifying device including an SOx absorbing material 17 provided in an exhaust passage of an internal combustion engine, a main NOx catalyst 20 provided in the exhaust passage on the downstream side of the SOx absorbing material, a bypass pipe 26 branching off from the exhaust passage at a position between the SOx absorbing material 17 and the main NOx catalyst 20, and an exhaust switching valve 28 provided at the start end of the bypass pipe 26 and adapted to switch the exhaust flow between the main NOx catalyst 20 and the bypass pipe 26, wherein a sub NOx catalyst 24 is provided in the bypass pipe 26 and wherein when the exhaust switching valve 28 is controlled so as to lead the exhaust to the main NOx catalyst 20 and as to prevent the exhaust from flowing through the bypass pipe 26, any exhaust leaking from the exhaust switching valve 28 to the bypass pipe 26 is purified by the sub NOx catalyst 24.

    摘要翻译： 本发明的目的在于提高具有NOx催化剂和绕过NOx催化剂的旁路的排气净化装置的排气净化装置的可靠性。 本发明提供了一种排气净化装置，其包括设置在内燃机的排气通路中的SOx吸收材料17，设置在SO x吸收材料的下游侧的排气通路中的主NOx催化剂20，旁通管26 在SO x吸收材料17和主NOx催化剂20之间的位置处从排气通道分支;以及排气切换阀28，其设置在旁通管26的起始端，并且适于切换主NOx催化剂 20和旁通管26，其中副NOx催化剂24设置在旁通管26中，并且其中当排气切换阀28被控制以将排气引导到主NOx催化剂20并且为了防止排气流动 通过旁通管26，通过副NOx催化剂24净化从排气切换阀28向旁通管26泄漏的任何废气。

    Exhaust emission control system of internal combustion engine
    10.
    发明授权
    Exhaust emission control system of internal combustion engine 有权
    内燃机废气排放控制系统

    公开(公告)号：US06212885B1

    公开(公告)日：2001-04-10

    申请号：US09300686

    申请日：1999-04-27

    申请人： Shinya Hirota ,  Toshiaki Tanaka ,  Satoshi Iguchi ,  Shunsuke Toshioka

    发明人： Shinya Hirota ,  Toshiaki Tanaka ,  Satoshi Iguchi ,  Shunsuke Toshioka

    IPC分类号： F01N300

    CPC分类号： B01D53/9454 ,  B01D53/949 ,  F01N3/0205 ,  F01N3/0835 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0878 ,  F01N3/0885 ,  F01N3/2093 ,  F01N13/009 ,  F01N13/011 ,  F01N2240/16 ,  F01N2250/12 ,  F01N2560/026 ,  F01N2570/04 ,  Y02T10/22

    摘要： An exhaust emission control system of an internal combustion engine desorbs SOx by reversing a flow of an exhaust gas through an NOx storage-reduction catalyst, of which a structure is simplified as follows. A first exhaust pipe connected to an engine is connected to a first port of an emission switching valve having four ports. A second exhaust pipe 10, through which the exhaust gas is discharged into the atmospheric air, is connected to a second port, a third exhaust pipe connected to an inlet of a catalytic converter is connected to a third port. A fourth exhaust pipe connected to an outlet of the catalytic converter 30 is connected to a fourth port. When the emission switching valve is set in a forward flow position, the first exhaust pipe is connected to the third exhaust pipe, and the second exhaust pipe is connected to the fourth exhaust pipe, whereby the exhaust gas flows toward the outlet from the inlet within the catalytic converter. When the emission switching valve is set in a backward flow position, the first exhaust pipe is connected to the fourth exhaust pipe, and the second exhaust pipe is connected to the third exhaust pipe, whereby the exhaust gas flows toward the inlet from the outlet within the catalytic converter.

    摘要翻译： 内燃机的废气排放控制系统通过将废气流通过NOx吸留还原催化剂反转来解吸SOx，其结构简化如下。 连接到发动机的第一排气管连接到具有四个端口的排放切换阀的第一端口。 将废气排放到大气中的第二排气管10连接到第二端口，连接到催化转化器的入口的第三排气管连接到第三端口。 连接到催化转化器30的出口的第四排气管连接到第四端口。 当排放切换阀设置在正向流动位置时，第一排气管连接到第三排气管，第二排气管连接到第四排气管，由此排气从入口内的出口流动 催化转化器。 当排放切换阀设置在向后流动位置时，第一排气管连接到第四排气管，第二排气管连接到第三排气管，由此排气从出口内的入口流入 催化转化器。