公开(公告)号：EP0351197A3

公开(公告)日：1990-12-19

申请号：EP89307051.6

申请日：1989-07-11

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Cooper, Barry John ,  Harrison, Brian ,  Diwell, Alan Francis

IPC分类号： B01D53/36

CPC分类号： B01D53/9445 ,  B01D53/945 ,  B01D53/9495 ,  B01J23/894 ,  F02B1/04 ,  Y02A50/2341 ,  Y02T10/22

摘要： Pollutants from the exhaust of a lean running internal combustion engine are reduced by the engine having an exhaust catalyst capable of oxidising hydrocarbons and carbon monoxide and reducing NO x to nitrogen and being fitted with engine management means arranged to provide transient additional enrichment during periods of acceleration. A novel exhaust catalyst for this purpose is carried by a washcoat and is capable of oxidising hydrocarbons and carbon monoxide and reducing NO x to nitrogen and contains in addition 0.1 - 20% by weight of iron based on the total weight of catalyst and washcoat.

公开(公告)号：EP0351197A2

公开(公告)日：1990-01-17

申请号：EP89307051.6

申请日：1989-07-11

申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY

发明人： Cooper, Barry John ,  Harrison, Brian ,  Diwell, Alan Francis

IPC分类号： B01D53/36

CPC分类号： B01D53/9445 ,  B01D53/945 ,  B01D53/9495 ,  B01J23/894 ,  F02B1/04 ,  Y02A50/2341 ,  Y02T10/22

摘要： Pollutants from the exhaust of a lean running internal combustion engine are reduced by the engine having an exhaust catalyst capable of oxidising hydrocarbons and carbon monoxide and reducing NO x to nitrogen and being fitted with engine management means arranged to provide transient additional enrichment during periods of acceleration. A novel exhaust catalyst for this purpose is carried by a washcoat and is capable of oxidising hydrocarbons and carbon monoxide and reducing NO x to nitrogen and contains in addition 0.1 - 20% by weight of iron based on the total weight of catalyst and washcoat.

摘要翻译： 通过具有能够氧化碳氢化合物和一氧化碳并将NOx还原成氮的排气催化剂的发动机减少来自稀薄运行的内燃机的排气的污染物，并配备有被设置成在加速期间提供瞬时附加浓缩的发动机管理装置。 用于此目的的新型废气催化剂由修补基面涂层承载，并且能够氧化烃和一氧化碳并将NOx还原成氮，并且还包含基于催化剂和修补基面涂层总重量的0.1-20重量％的铁。