Title:
内燃機関の排気浄化装置
Document Type and Number:
Japanese Patent JP4337872
Kind Code:
B2
Abstract:
An exhaust gas control apparatus for an internal combustion engine, including a three-way catalyst, a NOX storage-reduction catalyst, a rich controlling mechanism performing control to make an air-fuel ratio of exhaust gas rich to reduce NOX stored in the NOX storage-reduction catalyst, and a control performing control to ensure that a NOX purifying component is present in the NOX storage-reduction catalyst when reducing the NOX.
Inventors:
Kenji Kato
Katsura Masuda
Katsura Masuda
Application Number:
JP2006344231A
Publication Date:
September 30, 2009
Filing Date:
December 21, 2006
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F01N3/08; B01D53/86; B01D53/94; F01N3/36; F02D41/04
Domestic Patent References:
| JP2004517249A | ||||
| JP2006177313A |
Foreign References:
| WO2000043647A1 |
Attorney, Agent or Firm:
Satoshi Nakamura
Koji Yamamoto
Tatsuo Egami
Koji Yamamoto
Tatsuo Egami