公开(公告)号：EP0944424B1

公开(公告)日：2003-07-16

申请号：EP97941920.7

申请日：1997-08-07

申请人： Volkswagen Aktiengesellschaft

发明人： HELD, Wolfgang

IPC分类号： B01D53/04 ,  B01D53/94 ,  F01N3/08

CPC分类号： B01D53/9495 ,  B01D53/0415 ,  B01D53/0454 ,  B01D53/945 ,  B01D53/9481 ,  B01D53/949 ,  B01D2251/30 ,  B01D2251/408 ,  B01D2251/60 ,  B01D2251/602 ,  B01D2253/1124 ,  B01D2253/25 ,  B01D2253/306 ,  B01D2253/311 ,  B01D2255/2042 ,  B01D2255/2063 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/91 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2258/012 ,  B01D2259/40009 ,  B01D2259/40096 ,  B01D2259/4566 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/22 ,  F01N3/222 ,  F01N13/009 ,  F01N2240/16 ,  F01N2250/12 ,  F01N2570/04 ,  F01N2610/03 ,  F02B1/04 ,  F02B23/101 ,  F02B2075/125 ,  F02D41/024 ,  F02D41/0275 ,  F02D41/028 ,  F02D41/1454 ,  F02D2200/0802 ,  Y02T10/123 ,  Y02T10/22

摘要： NOx-adsorbers could until now only be used in spark-ignited engines with a high exhaust fume temperature, as the regeneration of the adsorber requires a high temperature. By using a supporting body made of a metal foil for the adsorption layer and by introducing a fuel mixture in the exhaust fume line, a catalytic oxidation is achieved on the adsorber, and thus a temperature increase, so that a good desorption of the adsorber (1) is achieved even when consumption-optimised internal combustion engines (3) are used.

公开(公告)号：EP0944428A1

公开(公告)日：1999-09-29

申请号：EP97918968.0

申请日：1997-08-07

申请人： Volkswagen Aktiengesellschaft

发明人： HELD, Wolfgang

IPC分类号： B01D53 ,  F01N3 ,  F01N7 ,  F02B1

CPC分类号： F01N3/22 ,  B01D53/0415 ,  B01D53/0454 ,  B01D53/9481 ,  B01D53/949 ,  B01D2251/304 ,  B01D2251/408 ,  B01D2251/60 ,  B01D2253/25 ,  B01D2253/34 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2258/01 ,  B01D2259/40009 ,  B01D2259/40096 ,  B01D2259/4566 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/222 ,  F01N13/009 ,  F01N2240/16 ,  F01N2250/12 ,  F01N2610/03 ,  F02B1/04 ,  Y02T10/22

摘要： NOx-adsorbers could be used until now only in internal combustion engines with a high exhaust fume temperature, as the regeneration of the adsorber requires a high temperature. By using a metal foil as a support for the adsorption layer and by forming non-linear channels in the support, for example by twisting the same (15), a turbulent exhaust fume flow is created in a partial area of the adsorber (1), and so a good desorption of the adsorber (1) is achieved even in consumption-optimised internal combustion engines (3).

公开(公告)号：EP1183453A1

公开(公告)日：2002-03-06

申请号：EP00931209.1

申请日：2000-05-13

申请人： Volkswagen Aktiengesellschaft

发明人： POTT, Ekkehard ,  GOTTSCHLING, Martina ,  HELD, Wolfgang ,  HAHN, Hermann

IPC分类号： F02D41/14

CPC分类号： F01N3/0842 ,  F01N3/0814 ,  F01N13/009 ,  F01N2570/04 ,  F01N2570/14 ,  F02D41/028 ,  F02D41/0295 ,  F02D41/1408 ,  F02M26/15 ,  Y02A50/2344

摘要： The invention relates to a method for desulfurization of at least one NOx storage catalyst mounted in the exhaust gas duct of an internal combustion engine, comprising at least one gas sensor mounted downstream of said NOx storage catalyst. After the need for desulfurization has been detected, a minimum temperature is regulated in the NOx storage catalyst and the internal combustion engine is set to a rich working mode with μ l until a predetermined first threshold value (Sm) has been reached for lambda in the gas sensor (21) in a first phase (t1); b) after the first threshold value (Sm) has been reached, the internal combustion engine (14) is set to a thick working mode with μ

公开(公告)号：EP1183453B1

公开(公告)日：2004-04-28

申请号：EP00931209.1

申请日：2000-05-13

申请人： Volkswagen Aktiengesellschaft

发明人： POTT, Ekkehard ,  GOTTSCHLING, Martina ,  HELD, Wolfgang ,  HAHN, Hermann

IPC分类号： F02D41/14

CPC分类号： F01N3/0842 ,  F01N3/0814 ,  F01N13/009 ,  F01N2570/04 ,  F01N2570/14 ,  F02D41/028 ,  F02D41/0295 ,  F02D41/1408 ,  F02M26/15 ,  Y02A50/2344

公开(公告)号：EP0944424A1

公开(公告)日：1999-09-29

申请号：EP97941920.0

申请日：1997-08-07

申请人： Volkswagen Aktiengesellschaft

发明人： HELD, Wolfgang

IPC分类号： B01D53 ,  F01N3 ,  F02D41 ,  F01N7 ,  F02B1 ,  F02B23 ,  F02B75

CPC分类号： B01D53/9495 ,  B01D53/0415 ,  B01D53/0454 ,  B01D53/945 ,  B01D53/9481 ,  B01D53/949 ,  B01D2251/30 ,  B01D2251/408 ,  B01D2251/60 ,  B01D2251/602 ,  B01D2253/1124 ,  B01D2253/25 ,  B01D2253/306 ,  B01D2253/311 ,  B01D2255/2042 ,  B01D2255/2063 ,  B01D2255/2073 ,  B01D2255/20761 ,  B01D2255/91 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2258/012 ,  B01D2259/40009 ,  B01D2259/40096 ,  B01D2259/4566 ,  F01N3/0807 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/22 ,  F01N3/222 ,  F01N13/009 ,  F01N2240/16 ,  F01N2250/12 ,  F01N2570/04 ,  F01N2610/03 ,  F02B1/04 ,  F02B23/101 ,  F02B2075/125 ,  F02D41/024 ,  F02D41/0275 ,  F02D41/028 ,  F02D41/1454 ,  F02D2200/0802 ,  Y02T10/123 ,  Y02T10/22

摘要： NOx-adsorbers could until now only be used in spark-ignited engines with a high exhaust fume temperature, as the regeneration of the adsorber requires a high temperature. By using a supporting body made of a metal foil for the adsorption layer and by introducing a fuel mixture in the exhaust fume line, a catalytic oxidation is achieved on the adsorber, and thus a temperature increase, so that a good desorption of the adsorber (1) is achieved even when consumption-optimised internal combustion engines (3) are used.

公开(公告)号：EP0944428B1

公开(公告)日：2013-06-26

申请号：EP97918968.5

申请日：1997-08-07

申请人： Volkswagen Aktiengesellschaft

发明人： HELD, Wolfgang

IPC分类号： B01D53/94 ,  F01N3/08

CPC分类号： F01N3/22 ,  B01D53/0415 ,  B01D53/0454 ,  B01D53/9481 ,  B01D53/949 ,  B01D2251/304 ,  B01D2251/408 ,  B01D2251/60 ,  B01D2253/25 ,  B01D2253/34 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2258/01 ,  B01D2259/40009 ,  B01D2259/40096 ,  B01D2259/4566 ,  F01N3/0814 ,  F01N3/0842 ,  F01N3/085 ,  F01N3/0871 ,  F01N3/0885 ,  F01N3/222 ,  F01N13/009 ,  F01N2240/16 ,  F01N2250/12 ,  F01N2610/03 ,  F02B1/04 ,  Y02T10/22