Invention Grant
- Patent Title: Automotive catalytic aftertreatment system
- Patent Title (中): 汽车催化后处理系统
-
Application No.: US13713349Application Date: 2012-12-13
-
Publication No.: US09341098B2Publication Date: 2016-05-17
- Inventor: Kieran Cole , Colin Newman , Isabel Tingay , Olivier Sonntag , Gudmund Smedler , Ruth Savage
- Applicant: JOHNSON MATTHEY PUBLIC LIMITED COMPANY
- Applicant Address: GB London
- Assignee: Johnson Matthey PLC
- Current Assignee: Johnson Matthey PLC
- Current Assignee Address: GB London
- Agent Gary D. Mangels
- Priority: GB1121468.1 20111214
- Main IPC: F01N3/10
- IPC: F01N3/10 ; F01N3/20 ; B01J35/00 ; B01J23/44 ; B01D53/94 ; F01N3/023 ; F01N3/035 ; B01J37/02 ; B01J35/04
Abstract:
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).
Public/Granted literature
- US20130152548A1 AUTOMOTIVE CATALYTIC AFTERTREATMENT SYSTEM Public/Granted day:2013-06-20
Information query
IPC分类:
