Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Toshio Hori0
Mamoru Nemoto0
Minoru Ohsuga0
Shinji Nakagawa0
Kosaku Shimada0
Date of Patent
October 17, 2006
0Patent Application Number
106878120
Date Filed
October 20, 2003
0Patent Primary Examiner
Patent abstract
In a lean-burn engine equipped, in the exhaust pipe, with NOx trap catalyst that collects NOx by absorption or occlusion, the rich spike start timing and rich spike volume are optimized.
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