EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
    2.
    发明申请
    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE 失效
    内燃机排气净化系统

    公开(公告)号:US20130055703A1

    公开(公告)日:2013-03-07

    申请号:US13696972

    申请日:2010-05-12

    IPC分类号: F01N3/10

    摘要: An object of the present invention is to increase the flexibility in the layout of an exhaust gas purification system for an internal combustion engine including selective catalytic reduction catalyst provided in an exhaust passage of the internal combustion engine and an addition device for supplying reducing agent derived from ammonia to the selective catalytic reduction catalyst, without a deterioration of the performance in reducing nitrogen oxides. To achieve the object, the exhaust gas purification system for an internal combustion engine according to the present invention is configured to supply hydrocarbon at the same time when reducing agent derived from ammonia is supplied to the selective catalytic reduction catalyst, thereby producing reducing agent that is hard to be oxidized by a precious metal catalyst.

    摘要翻译: 本发明的目的在于提高内燃机的排气净化系统的布置灵活性,所述内燃机包括设置在内燃机的排气通路中的选择性催化还原催化剂,以及用于供给源自 氨至选择性催化还原催化剂,而不会降低还原氮氧化物的性能。 为了达到上述目的,本发明的内燃机用废气净化装置,在向选择性催化还原催化剂供给来自氨的还原剂的同时,同时供给烃,由此生成还原剂, 难以被贵金属催化剂氧化。

    EXHAUST GAS PURIFICATION SYSTEM FOR INTERNAL COMBUSTION ENGINE
    3.
    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:US20130058832A1

    公开(公告)日:2013-03-07

    申请号:US13640231

    申请日:2010-04-08

    IPC分类号: F01N3/18 G05D23/00

    摘要: An exhaust gas purification system is equipped with a burner in an exhaust passage upstream of an exhaust gas purification apparatus and having a burner combustion chamber in which flame is produced. When the temperature of the exhaust gas purification apparatus is raised, the burner produces flame that extends from the interior of the burner combustion chamber to the interior of the exhaust passage when the flow rate of the exhaust gas is not higher than a predetermined flow rate, and the burner causes the size of the flame to be smaller than when it is determined that the flow rate of the exhaust gas is not higher than the predetermined flow rate or to produce flame only in the interior of the burner combustion chamber when it is determined that the flow rate of exhaust gas is higher than the predetermined flow rate.

    摘要翻译: 废气净化系统在废气净化装置上游的排气通道中配备有燃烧器,并且具有在其中产生火焰的燃烧器燃烧室。 当废气净化装置的温度升高时,当排气的流量不高于预定的流量时,燃烧器产生从燃烧器燃烧室的内部延伸到排气通道的内部的火焰, 并且所述燃烧器导致所述火焰的尺寸小于当确定所述排气的流量不高于所述预定流量时,或者当确定所述燃烧器燃烧室的内部时仅产生火焰 废气的流量高于预定的流量。