发明授权
- 专利标题: Particulate control
- 专利标题(中): 微粒控制
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申请号: US09857386申请日: 1999-11-29
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公开(公告)号: US06877313B1公开(公告)日: 2005-04-12
- 发明人: Paul Richard Phillips , Martyn Vincent Twigg
- 申请人: Paul Richard Phillips , Martyn Vincent Twigg
- 申请人地址: GB London
- 专利权人: Johnson Matthey Public Limited Company
- 当前专利权人: Johnson Matthey Public Limited Company
- 当前专利权人地址: GB London
- 代理机构: RatnerPrestia
- 优先权: GB9826748 19981205; GB9913300 19990609
- 国际申请: PCTGB99/03971 WO 19991129
- 国际公布: WO0034632 WO 20000615
- 主分类号: F01N3/02
- IPC分类号: F01N3/02 ; B01D39/14 ; B01D39/20 ; B01D53/94 ; F01N3/023 ; F01N3/08 ; F01N3/10 ; F01N3/18 ; F01N3/20 ; F01N3/24 ; F01N3/28 ; F01N3/36 ; F01N13/02 ; F01N3/00
摘要:
An improved system for treating the aftertreatment of exhaust gases, especially from diesel engines, comprises a first catalyst (20) effective to oxidise hydrocarbons, a second catalyst (22) effective to convert NO to NO2, a trap (24) for particulates, on which particulates may combust with the NO2, and optionally a NOx absorption material (26).
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