公开(公告)号：US20130011313A1

公开(公告)日：2013-01-10

申请号：US13616886

申请日：2012-09-14

申请人： Brigitte BANDL-KONRAD ,  Andreas HERTZBERG ,  Bernd KRUTZSCH ,  Arno NOLTE ,  Markus PAULE ,  Stefan RENFFTLEN ,  Norbert WALDBUESSER ,  Michael WEIBEL ,  Gunter WENNINGER ,  Rolf WUNSCH

发明人： Brigitte BANDL-KONRAD ,  Andreas HERTZBERG ,  Bernd KRUTZSCH ,  Arno NOLTE ,  Markus PAULE ,  Stefan RENFFTLEN ,  Norbert WALDBUESSER ,  Michael WEIBEL ,  Gunter WENNINGER ,  Rolf WUNSCH

IPC分类号： B01D53/94

CPC分类号： F01N3/035 ,  B01D53/9418 ,  B01D53/9422 ,  B01D53/9431 ,  B01D53/9477 ,  B01D53/9495 ,  B01D53/96 ,  B01D2255/911 ,  F01N3/0231 ,  F01N3/0814 ,  F01N3/0821 ,  F01N3/0842 ,  F01N3/0871 ,  F01N3/103 ,  F01N3/2013 ,  F01N3/2066 ,  F01N3/208 ,  F01N3/2882 ,  F01N3/30 ,  F01N13/009 ,  F01N13/0093 ,  F01N13/011 ,  F01N2250/02 ,  F01N2250/12 ,  F01N2250/14 ,  F01N2510/0684 ,  F01N2560/025 ,  F01N2560/026 ,  F01N2560/06 ,  F01N2570/14 ,  F01N2570/18 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/146 ,  Y02A50/2325 ,  Y02A50/2344 ,  Y02T10/24

摘要： An exhaust gas aftertreatment installment and associated exhaust gas aftertreatment method utilizes a nitrogen oxide storage catalytic converter and an SCR catalytic converter. A particulate filter is provided upstream of the nitrogen oxide storage catalytic converter or between the latter and the SCR catalytic converter or downstream of the SCR catalytic converter. The time of regeneration operating phases of the nitrogen oxide storage catalytic converter can be determined as a function of the nitrogen oxide content of the exhaust gas downstream of the nitrogen oxide storage catalytic converter or of the SCR catalytic converter and/or as a function of the ammonia loading of the latter. Moreover, a desired ammonia generation quantity can be determined for a respective regeneration operating phase. The installation and method are adopted for use for motor vehicle internal combustion engines and other engines which are operated predominantly in lean-burn mode.