| 发明名称 |
EXHAUST EMISSION CONTROL DEVICE |
| 摘要 |
PROBLEM TO BE SOLVED: To improve purifying performance and reliability of an exhaust emission control device of an engine. SOLUTION: This exhaust emission control device has a catalyst arranged in an exhaust pipe of the engine and a secondary air pump for forcibly sending secondary air in the exhaust pipe. The secondary air pump is operated even after stopping the engine. COPYRIGHT: (C)2004,JPO&NCIPI
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| 申请公布号 |
JP2004225539(A) |
申请公布日期 |
2004.08.12 |
| 申请号 |
JP20030010502 |
申请日期 |
2003.01.20 |
| 申请人 |
HITACHI LTD;HITACHI CAR ENG CO LTD |
发明人 |
KATOGI KOZO;NAGANO MASAMI;SEKINE HIROSHI;TAKAMURA HIROYUKI;NAKAGAWA SHINJI |
| 分类号 |
F02M37/00;F01N3/22;F01N3/32;F01N11/00;F01N13/02;F02B37/00;(IPC1-7):F01N3/22 |
主分类号 |
F02M37/00 |
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