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    Exhaust purification device of internal combustion engine
    2.
    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：US08534051B2

    公开(公告)日：2013-09-17

    申请号：US12740138

    申请日：2008-12-26

    申请人： Kenichi Tsujimoto ,  Mikio Inoue ,  Shinya Hirota

    发明人： Kenichi Tsujimoto ,  Mikio Inoue ,  Shinya Hirota

    IPC分类号： F01N3/00

    CPC分类号： F01N3/2033 ,  F01N3/025 ,  F01N3/035 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/208 ,  F01N9/00 ,  F01N9/002 ,  F01N2240/30 ,  F01N2610/03 ,  F02D41/0245 ,  F02D41/402 ,  Y02T10/24 ,  Y02T10/26 ,  Y02T10/47

    摘要： An internal combustion engine in an engine exhaust passage of which an exhaust purification catalyst (13) having an oxidation function is arranged and in the engine exhaust passage upstream of the exhaust purification catalyst (13) of which a small-sized oxidation catalyst (14) and a fuel feed valve (15) for feeding fuel to the small-sized oxidation catalyst (14) are arranged. When activating the exhaust purification catalyst (13), the fuel fed from the fuel injector (15) is used to heat the small-sized oxidation catalyst (14) and when the exhaust purification catalyst (13) is further raised in temperature, the fuel fed from the fuel feed valve (15) is increased and reformed fuel is exhausted from the small-sized oxidation catalyst (14).

    摘要翻译： 在排气净化催化剂（13）的上游配置有小型氧化催化剂（14）的发动机排气通路中，具有氧化功能的排气净化催化剂（13）的发动机排气通路内的内燃机， 和用于向小型氧化催化剂（14）供给燃料的燃料供给阀（15）。 当激活排气净化催化剂（13）时，使用从燃料喷射器（15）供给的燃料来加热小型氧化催化剂（14），并且当排气净化催化剂（13）进一步升温时，燃料 从燃料供给阀15供给的重整燃料从小型氧化催化剂（14）排出。

    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
    6.
    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：US20120000190A1

    公开(公告)日：2012-01-05

    申请号：US13255189

    申请日：2010-03-10

    申请人： Shinya Hirota ,  Yoshinori Yamashita

    发明人： Shinya Hirota ,  Yoshinori Yamashita

    IPC分类号： F01N3/10

    CPC分类号： F01N3/208 ,  F01N3/2006 ,  F01N2560/026 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2900/08 ,  F01N2900/1402 ,  F01N2900/1621 ,  F01N2900/1622 ,  Y02T10/24 ,  Y02T10/26

    摘要： In an exhaust gas purification system for an internal combustion engine, a NOx selective reduction catalyst for reducing NOx with ammonia that is adsorbed on the NOx selective reduction catalyst is disposed in an exhaust passage of the engine. In the NOx selective reduction catalyst, ammonia in a first adsorption state that is adsorbed at a low temperature and ammonia in a second adsorption state that is adsorbed at a high temperature are present. Because ammonia, which has been in the first adsorption state and which is desorbed from the NOx selective reduction catalyst, tends to be discharged to the atmosphere, a control section that estimates an adsorption amount of ammonia in the first adsorption state is provided in the exhaust gas purification system for the internal combustion engine in order to control the adsorption amount of ammonia in the first adsorption state within a specified level.

    摘要翻译： 在内燃机的废气净化系统中，在发动机的排气通路内配置有用于将NOx吸附在NOx选择还原催化剂上的用于还原NOx的NOx选择还原催化剂。 在NOx选择还原催化剂中，存在吸附在低温下的第一吸附状态的氨和处于高温吸附的第二吸附状态的氨。 由于已经处于第一吸附状态并且从NOx选择还原催化剂解吸的氨倾向于排放到大气中，所以在排气中设置了估计第一吸附状态的氨的吸附量的控制部 用于内燃机的气体净化系统，以控制在第一吸附状态下的氨的吸附量在规定的水平内。

    Exhaust purification device of compression ignition type internal combustion engine
    8.
    发明授权
    Exhaust purification device of compression ignition type internal combustion engine 有权
    压燃式内燃机排气净化装置

    公开(公告)号：US07703275B2

    公开(公告)日：2010-04-27

    申请号：US10542595

    申请日：2004-11-29

    申请人： Takamitsu Asanuma ,  Shinya Hirota ,  Tomihisa Oda

    发明人： Takamitsu Asanuma ,  Shinya Hirota ,  Tomihisa Oda

    IPC分类号： F01N3/00

    CPC分类号： F01N3/0814 ,  F01N3/0835 ,  F01N3/0842 ,  F01N13/009 ,  F01N2610/03 ,  F02B29/0406 ,  F02B37/00 ,  F02M26/05 ,  F02M26/28

    摘要： A fuel adding valve (14), an HC adsorbing and oxidation catalyst (11), and a NOx storing catalyst (12) are successively arranged in an exhaust passage of an internal combustion engine toward the downstream side. When the NOx storing catalyst (12) should release NOx, particulate fuel is added from the fuel adding valve (14). This fuel is adsorbed once at the HC adsorbing and oxidation catalyst (11), then gradually evaporates to make the air-fuel ratio of the exhaust gas flowing into the NOx storing catalyst (12) rich. Due to this, NOx is released from the NOx storing catalyst (12).

    摘要翻译： 燃料添加阀（14），HC吸附和氧化催化剂（11）和NOx储存催化剂（12）在内燃机的排气通道中朝向下游侧依次排列。 当NOx吸留催化剂（12）释放NOx时，从燃料添加阀（14）中加入微粒燃料。 该燃料在HC吸附和氧化催化剂（11）处吸附一次，然后逐渐蒸发，使得流入NOx吸留催化剂（12）的废气的空燃比变浓。 由此，从NOx吸留催化剂（12）释放NOx。