Title:
筒内噴射式エンジンの制御装置
Document Type and Number:
Japanese Patent JP4253986
Kind Code:
B2
Abstract:
In steps S25 to S42, in order to activate an inactive catalyst earlier, the air-fuel ratio in a combustion chamber is set to be lambda APPROX 1 during a period T1 after engine start until catalyst light-off at around 50% HC purifying ratio immediately after the HC purifying ratio begins to rapidly rise, before the catalyst warms up, divisional injection is made at least during the period T1 required until light-off is reached, and a swirl is weakened during the period T1 compared to a latter period which follows this period T1. The divisional injection is made and the swirl is strengthened even during the latter period.
Inventors:
Youichi Kuji
Kuroki Masayuki
Junichi Taga
Kazuya Yokota
Keiji Araki
Kuroki Masayuki
Junichi Taga
Kazuya Yokota
Keiji Araki
Application Number:
JP2000059000A
Publication Date:
April 15, 2009
Filing Date:
March 03, 2000
Export Citation:
Assignee:
Mazda Corporation Inc
International Classes:
F02D41/34; F01N3/08; F02P5/145; F01N3/20; F01N3/24; F01N3/28; F02B17/00; F02B23/10; F02D41/02; F02D41/06; F02D41/14; F02D41/40; F02D43/00; F02D45/00; F02F3/28; F02M25/07; F02B75/12
Domestic Patent References:
| JP200045844A | ||||
| JP693902A | ||||
| JP1018850A |
Attorney, Agent or Firm:
Yasunori Otsuka
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
Shiro Takayanagi
Yasuhiro Otsuka
Shuji Kimura
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