Title:
内燃機関の排気浄化装置
Document Type and Number:
Japanese Patent JP4424147
Kind Code:
B2
Abstract:
An exhaust emission control apparatus for an internal combustion engine includes a fuel injection valve placed substantially at a midpoint above a combustion chamber of the engine; a piston having an outer cavity formed substantially in a midsection of an upper surface of the piston and an inner cavity formed in a bottom surface of the outer cavity; an ignition plug placed in a region right above the outer cavity; an exhaust purifying catalyst provided in an exhaust passage of the engine; and a controller. This controller is configured to carry out a stratified charge combustion when a temperature rise for the exhaust purifying catalyst is required, by forming air-fuel mixture which is richer than stoichiometric ratio and is able to be ignited by the ignition plug, within the outer cavity and in an area substantially right above the outer cavity, from a fuel injected through the fuel injection valve.
Inventors:
Taisuke Shiraishi
Koji Hiraya
Isamu Hotta
Daisuke Tanaka
Koji Hiraya
Isamu Hotta
Daisuke Tanaka
Application Number:
JP2004298641A
Publication Date:
March 03, 2010
Filing Date:
October 13, 2004
Export Citation:
Assignee:
Nissan Motor Co., Ltd
International Classes:
F02D41/06; F01N3/20; F01N3/24; F02B17/00; F02B23/10; F02D41/02; F02D41/04; F02D43/00; F02D45/00; F02M45/02; F02M61/14; F02P5/15
Domestic Patent References:
| JP2004011441A | ||||
| JP2004278455A | ||||
| JP61173728U | ||||
| JP2001182586A | ||||
| JP10169488A | ||||
| JP2000045843A | ||||
| JP200159414A |
Attorney, Agent or Firm:
Tsuyoshi Hashimoto
Hiromichi Kobayashi
Tomioka Kiyoshi
Hiromichi Kobayashi
Tomioka Kiyoshi