Title:
内燃機関の排気浄化装置
Document Type and Number:
Japanese Patent JP4244510
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To simultaneously reduce NOx exhausted amount and CO2 exhausted amount even under an accelerating operation condition without degrading fuel consumption. SOLUTION: A relation between total NOx exhausted amount and running distance allows a lean operation in the accelerating operation, an operation region at a lean air-fuel ratio in the accelerating operation is reduced when the relation between total NOx exhausted amount and running distance lies on a higher total exhausted amount side than a predetermined relation. The total NOx exhausted amount is efficiently suppressed and simultaneously opportunity of reduction and purification of NOx stored in a storage type NOx catalyst 25 is increased to efficiently recover the NOx storage capability, and both improvement of fuel consumption and management of the total NOx exhausted amount are efficiently, simultaneously achieved.
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Inventors:
Kojiro Okada
Yasuki Tamura
Yasuki Tamura
Application Number:
JP2000270003A
Publication Date:
March 25, 2009
Filing Date:
September 06, 2000
Export Citation:
Assignee:
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
International Classes:
F02D41/04; F02D45/00; F01N3/08; F01N3/24; F01N3/28
Domestic Patent References:
| JP2503387B2 | ||||
| JP6280550A |
Attorney, Agent or Firm:
Toshiro Mitsuishi
Tadahiro Mitsuishi
Yasuyuki Tanaka
Hiroshi Matsumoto
Tadahiro Mitsuishi
Yasuyuki Tanaka
Hiroshi Matsumoto