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    Exhaust emission control system of internal combustion engine
    41.
    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。

    Exhaust gas purification device of internal combustion engine
    42.
    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 purification device of internal combustion engine
    44.
    发明授权
    Exhaust purification device of internal combustion engine 有权
    内燃机排气净化装置

    公开(公告)号：US08225596B2

    公开(公告)日：2012-07-24

    申请号：US12450276

    申请日：2008-03-04

    申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Kazuhiro Itoh

    发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Kazuhiro Itoh

    IPC分类号： F01N3/00

    CPC分类号： F01N3/2066 ,  F01N3/0835 ,  F01N9/00 ,  F01N13/009 ,  F01N2570/00 ,  F01N2570/12 ,  Y02T10/24 ,  Y02T10/47

    摘要： In an internal combustion engine, a urea adsorption type selective reduction catalyst is arranged in an engine exhaust passage. By feeding urea from a urea feed valve into the exhaust gas flowing into this selective reduction catalyst, the NOx included in the exhaust gas is reduced in the selective reduction catalyst. TO suppress the generation of hydrogen cyanide, an HC adsorption catalyst for adsorption of the HC in the exhaust gas is arranged in the engine exhaust passage upstream of the selective reduction catalyst.

    摘要翻译： 在内燃机中，尿素吸附式选择还原催化剂配置在发动机排气通路内。 通过将尿素从尿素进料阀送入流入该选择还原催化剂的废气中，选择还原催化剂中的排气中包含的NOx降低。 为了抑制氰化氢的产生，在选择还原催化剂上游的发动机排气通道中配置有用于吸附废气中的HC的HC吸附催化剂。

    EXHAUST PURIFICATION DEVICE OF INTERNAL COMBUSTION ENGINE
    47.
    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：US20100031642A1

    公开(公告)日：2010-02-11

    申请号：US12450276

    申请日：2008-03-04

    申请人： Shunsuke Toshioka ,  Tomihisa Oda ,  Kazuhiro Itoh

    发明人： Shunsuke Toshioka ,  Tomihisa Oda ,  Kazuhiro Itoh

    IPC分类号： F01N9/00 ,  F01N3/10

    CPC分类号： F01N3/2066 ,  F01N3/0835 ,  F01N9/00 ,  F01N13/009 ,  F01N2570/00 ,  F01N2570/12 ,  Y02T10/24 ,  Y02T10/47

    摘要： In an internal combustion engine, a urea adsorption type selective reduction catalyst is arranged in an engine exhaust passage. By feeding urea from a urea feed valve into the exhaust gas flowing into this selective reduction catalyst, the NOx included in the exhaust gas is reduced in the selective reduction catalyst. TO suppress the generation of hydrogen cyanide, an HC adsorption catalyst for adsorption of the HC in the exhaust gas is arranged in the engine exhaust passage upstream of the selective reduction catalyst.

    摘要翻译： 在内燃机中，尿素吸附式选择还原催化剂配置在发动机排气通路内。 通过将尿素从尿素进料阀送入流入该选择还原催化剂的废气中，选择还原催化剂中的排气中包含的NOx降低。 为了抑制氰化氢的产生，在选择还原催化剂上游的发动机排气通道中配置有用于吸附废气中的HC的HC吸附催化剂。