Title:
エンジンの排気浄化装置および燃料噴射時期の設定方法
Document Type and Number:
Japanese Patent JP4568991
Kind Code:
B2
Abstract:
An exhaust-gas cleaning device for an engine and a method of setting fuel injection timing employed therein, the exhaust-gas cleaning device comprising a catalytic NOx converter (22) for converting NOx, a reductant adder (38) for increasing the quantity of reductant supplied to the catalytic NOx converter (22) by injecting fuel at a specific time during a period from an expansion stroke through an exhaust stroke, and an activation state detector (37) for judging whether the catalytic NOx converter (22) is in its activated state, wherein when the activation state detector (37) judges that the catalytic NOx converter (22) is in an inactivated state, the fuel injection timing controlled by the reductant adder (38) is advanced compared to a case where the catalytic NOx converter (22) is in the activated state.
Inventors:
Kazushi Kataoka
Tomomi Watanabe
Hiroshi Hayashibara
Tomoaki Saito
Mitsunori Kondo
Tomomi Watanabe
Hiroshi Hayashibara
Tomoaki Saito
Mitsunori Kondo
Application Number:
JP2000352922A
Publication Date:
October 27, 2010
Filing Date:
November 20, 2000
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02B37/00; F02D41/04; B01D53/94; F01N3/24; F01N3/28; F02D21/08; F02D41/00; F02D41/02; F02D41/14; F02D41/38; F02D41/40; F02D43/00; F02M25/07; F01N3/08
Domestic Patent References:
| JP11280453A | ||||
| JP10047146A | ||||
| JP11200933A | ||||
| JP11236848A | ||||
| JP11257053A |
Attorney, Agent or Firm:
Etsushi Kotani
Kyuichi Ueki
Jiro Higuchi
Kyuichi Ueki
Jiro Higuchi