Title:
内燃機関の排気浄化システム
Document Type and Number:
Japanese Patent JP4706645
Kind Code:
B2
Abstract:
An object of the present invention is to reduce oxide stored in an NOx catalyst in a more preferable manner. According to the present invention, when oxide stored in the NOx catalyst is to be reduced, the combustion mode of the internal combustion engine is switched into a low air-fuel ratio mode in which the air-fuel ratio of the air-fuel mixture in the internal combustion engine is low, and supply of fuel is executed at a time when the air-fuel ratio of the exhaust gas has been made low by the switching of the combustion mode.
Inventors:
Mikio Inoue
Akinori Morishima
Akinori Morishima
Application Number:
JP2007043416A
Publication Date:
June 22, 2011
Filing Date:
February 23, 2007
Export Citation:
Assignee:
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
F02D41/04; F01N3/08; F01N3/20; F01N3/24; F01N3/28; F01N3/36; F02D21/08; F02D41/02; F02D43/00; F02D45/00
Domestic Patent References:
| JP2005291095A | ||||
| JP2005226463A |
Attorney, Agent or Firm:
Yoshiyuki Kawaguchi
Mayuko Wakuda
Kazunobu Sera
Tsutomu Toyama
Takehiko Sekine
Mayuko Wakuda
Kazunobu Sera
Tsutomu Toyama
Takehiko Sekine