发明名称 |
EXHAUST EMISSION CONTROL SYSTEM FOR INTERNAL COMBUSTION ENGINE |
摘要 |
<p>An NOx absorbing agent (17) is disposed inside an exhaust gas passage of a combustion engine. This NOx absorbing agent (17) absorbs NOx when the air/fuel ratio of exhaust gas flowing thereinto is lean, and discharges NOx which it has absorbed when the air/fuel ratio of exhaust gas flowing thereinto becomes rich. When the air/fuel ratio of exhaust gas flowing into the NOx absorbing agent (17) is to be made rich so as to discharge NOx from the NOx absorbing agent, a higher NOx absorbing agent temperature makes the degree of richness higher and rich time shorter. <IMAGE></p> |
申请公布号 |
EP0598916(B1) |
申请公布日期 |
1999.09.15 |
申请号 |
EP19930913501 |
申请日期 |
1993.06.10 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TAKESHIMA, SHINICHI;TANAKA, TOSHIAKI;IGUCHI, SATOSHI;KATOH, KENJI;KIHARA, TETSURO |
分类号 |
B01D53/04;B01D53/94;F01N3/08;F01N3/20;F01N9/00;F01N13/02;F02B1/04;F02D41/02;F02D41/14;(IPC1-7):F01N3/28;F01N3/24;B01D53/34;B01J23/58 |
主分类号 |
B01D53/04 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|