发明名称 |
Exhaust gas purifier for use in internal combustion engine |
摘要 |
When a NOx-releasing unit is operated to change an air-fuel ratio to a rich side to thereby establish a low-oxygen-concentration atmosphere of an exhaust gas such that NOx is released from a NOx catalyst, a reducer-supplying unit additionally supplies a reducer during an operating period of the NOx-releasing unit for reducing NOx released into an exhaust path such that release of NOx balances with reduction of NOx, thereby reducing NOx released from the NOx catalyst and thus suppressing worsening of an exhaust gas performance. |
申请公布号 |
US6976356(B2) |
申请公布日期 |
2005.12.20 |
申请号 |
US20040768142 |
申请日期 |
2004.02.02 |
申请人 |
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA |
发明人 |
OKADA KOJIRO;NAKAYAMA OSAMU;TAMURA YASUKI;KAWASHIMA KAZUHITO |
分类号 |
B01D53/94;F01N3/08;F01N3/20;F01N13/02;F02D41/02;F02D41/40;(IPC1-7):F01N3/00 |
主分类号 |
B01D53/94 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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