利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

13 条记录 (耗时 0.011 秒)

    Method and system for feeding a reducing agent into a catalyst device
    3.
    发明授权
    Method and system for feeding a reducing agent into a catalyst device 失效
    将还原剂进料到催化剂装置中的方法和系统

    公开(公告)号：US06502390B2

    公开(公告)日：2003-01-07

    申请号：US09924461

    申请日：2001-08-09

    申请人： Christian Goerigk ,  Michael Illek ,  Stefan Wessels

    发明人： Christian Goerigk ,  Michael Illek ,  Stefan Wessels

    IPC分类号： F01N300

    CPC分类号： F01N3/2066 ,  B01D53/9431 ,  B01D53/9495 ,  F01N2610/02 ,  F01N2610/12 ,  Y02T10/24

    摘要： The present invention concerns a method and a system for feeding a reducing agent into a catalyst device. A first reservoir is provided and has a solid reducing agent, a second reservoir is provided and has a solvent for the solid reducing agent, and a reducing agent solutions is produced from the solid reducing agent and the solvent. The reducing agent solution is intermittently stored in a third reservoir, and the reducing agent solution is fed from the third reservoir into the catalyst device.

    摘要翻译： 本发明涉及将还原剂进料到催化剂装置中的方法和系统。 提供第一储存器并具有固体还原剂，提供第二储存器并具有用于固体还原剂的溶剂，并且由固相还原剂和溶剂产生还原剂溶液。 将还原剂溶液间歇地储存在第三储存器中，还原剂溶液从第三储存器进料到催化剂装置中。

    Process and apparatus for reducing nitrogen oxides in engine emissions
    5.
    发明授权
    Process and apparatus for reducing nitrogen oxides in engine emissions 失效
    减少发动机排放中氮氧化物的方法和装置

    公开(公告)号：US5921076A

    公开(公告)日：1999-07-13

    申请号：US781040

    申请日：1997-01-09

    申请人： Bernd Krutzsch ,  Christian Goerigk ,  Stefan Kurze ,  Gunter Wenninger ,  Walter Boegner ,  Friedrich Wirbeleit

    发明人： Bernd Krutzsch ,  Christian Goerigk ,  Stefan Kurze ,  Gunter Wenninger ,  Walter Boegner ,  Friedrich Wirbeleit

    IPC分类号： B01D53/94 ,  F01N3/08 ,  F01N3/20 ,  F01N13/02 ,  F02B1/04 ,  F01N3/00

    CPC分类号： F01N3/0814 ,  B01D53/9409 ,  B01D53/9495 ,  F01N13/009 ,  F01N3/2066 ,  F01N2240/30 ,  F01N2610/03 ,  F01N2610/04 ,  F02B1/04 ,  Y02T10/24

    摘要： A process and apparatus for reducing the nitrogen oxide content in oxygen-containing emissions is provided, particularly for internal-combustion engines, particularly of diesel engines and directly injecting Otto engines for motor vehicles. The nitrogen oxides contained in the exhaust gas are reduced by a suitable reducing agent, such as hydrogen or hydrocarbons, on a DENOX catalyst. For achieving an improved conversion rate for the nitrogen oxides, a combination of hydrogen and hydrocarbons are used as reducing agents. In different operating ranges of the internal-combustion engine only hydrogen, only hydrocarbons, or hydrogen and hydrocarbons are added. Preferably, for this purpose, the quantity of supplied hydrogen or hydrocarbons is reduced or increased with an increasing engine load and/or catalyst temperature and/or rotational engine speed.

    摘要翻译： 提供了用于降低含氧排放物中的氮氧化物含量的方法和装置，特别是用于内燃机，特别是柴油发动机的内燃机，并直接注入用于机动车辆的奥托发动机。 废气中所含的氮氧化物通过合适的还原剂如氢或烃在DENOX催化剂上被还原。 为了实现氮氧化物的改进转化率，使用氢和烃的组合作为还原剂。 在内燃机的不同工作范围内，只有氢气，仅添加烃或氢气和烃。 优选地，为此目的，随着发动机负荷和/或催化剂温度和/或转速发动机转速的增加，所供应的氢气或碳氢化合物的量减少或增加。