Title:
内燃機関の排気浄化装置
Document Type and Number:
Japanese Patent JP5664802
Kind Code:
B2
Abstract:
An internal combustion engine wherein an exhaust purification catalyst (13) and hydrocarbon feed valve (15) are arranged in an engine exhaust passage and wherein the NO x which is contained in the exhaust gas is removed by injection of hydrocarbons from the hydrocarbon feed valve (15) by a predetermined period. Hydrocarbons are injected from the hydrocarbon feed valve (15) toward the upstream side of the engine exhaust passage. When hydrocarbons are injected from the hydrocarbon feed valve (15) by a predetermined period, the injection pressure of the hydrocarbons is made to gradually fall from injection start to injection end in the injection time period of each injection.
Inventors:
美才治 悠樹
吉田 耕平
井上 三樹男
中村 昂章
吉田 耕平
井上 三樹男
中村 昂章
Application Number:
JP2013552447A
Publication Date:
February 04, 2015
Filing Date:
September 10, 2012
Export Citation:
Assignee:
トヨタ自動車株式会社
International Classes:
F01N3/36; B01D53/94; F01N3/023; F01N3/025; F01N3/029; F01N3/08; F01N3/10; F01N3/24; F01N3/28
Domestic Patent References:
| JP2011190803A | 2011-09-29 | |||
| JP2011220302A | 2011-11-04 |
Foreign References:
| WO2012108059A1 | 2012-08-16 | |||
| WO2011114499A1 | 2011-09-22 |
Attorney, Agent or Firm:
Aoki 篤
Tsuruta Junichi
Tetsuro Shimada
Mitsuhashi Shinji
Koichi Ito
Yuichi Morimoto
Tsuruta Junichi
Tetsuro Shimada
Mitsuhashi Shinji
Koichi Ito
Yuichi Morimoto