- 专利标题： Automotive catalytic aftertreatment system
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申请号： US15133392申请日： 2016-04-20
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公开(公告)号： US09789442B2公开(公告)日： 2017-10-17
- 发明人: Kieran Cole , Colin Newman , Isabel Tingay , Olivier Sonntag , Gudmund Smedler , Ruth Savage
- 申请人： JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- 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
- 代理商 Gary D. Mangels
- 主分类号： F01N3/10
- IPC分类号： F01N3/10 ; B01D53/94 ; F01N3/20 ; F01N3/035 ; B01D53/96 ; F01N3/023 ; F01N3/28 ; F01N13/00
摘要：
A catalytic aftertreatment system for a diesel engine exhaust gas is described. The system comprises a diesel oxidation catalyst (DOC) and an aftertreatment device located downstream of the diesel oxidation catalyst (DOC), which aftertreatment device requires periodic heat treatment, and means to generate a temperature increase within the aftertreatment device, said diesel oxidation catalyst (DOC) comprising an upstream zone of length from 0.5 to 2 inches (12.7-50.81 mm) of higher oxidation activity for hydrocarbons (HC) than the remainder of the diesel oxidation catalyst (DOC).
公开/授权文献
- US20160228817A1 AUTOMOTIVE CATALYTIC AFTERTREATMENT SYSTEM 公开/授权日：2016-08-11
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