发明名称 |
Method for the testing of an exhaust gas recirculation system |
摘要 |
Method for the testing of the exhaust gas recirculation system of an internal combustion engine that returns exhaust gas at an exhaust gas recirculation rate from the exhaust line to the intake line, in which a specific adjustment of the exhaust gas recirculation rate is set, the NOx concentration in the exhaust gas is measured and in the absence of a differential concentration varying as a function of the adjustment of the exhaust gas recirculation rate, a defect of the exhaust gas recirculation system is diagnosed.
|
申请公布号 |
US6598470(B2) |
申请公布日期 |
2003.07.29 |
申请号 |
US20010928958 |
申请日期 |
2001.08.13 |
申请人 |
SIEMENS AKTIENGESELLSCHAFT |
发明人 |
LUDWIG WOLFGANG;PFLEGER CORINNA;ZHANG HONG |
分类号 |
F02M25/07;(IPC1-7):G01M15/00 |
主分类号 |
F02M25/07 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|