发明名称 |
Apparatus, method and system for diagnosing reductant deposits in an exhaust aftertreatment system |
摘要 |
An exhaust gas treatment system for an internal combustion engine has a reluctant delivery system that delivers reductant to an exhaust stream in an exhaust aftertreatment system. A temperature sensor is positioned in or near the flow of reductant and exhaust to measure the temperature of the reluctant and exhaust. A change in temperature over time, such as an increase, decrease, or change in variation amplitude, indicates the presence of a reductant deposit in the system. Detection of the deposit initiates a regeneration cycle in which the operating characteristic of the system change to eliminate the reductant deposit to present it front hindering the performance of the exhaust aftertreatment system. |
申请公布号 |
EP2772622(A1) |
申请公布日期 |
2014.09.03 |
申请号 |
EP20140156645 |
申请日期 |
2014.02.25 |
申请人 |
CUMMINS IP, INC. |
发明人 |
MITCHELL, DOUGLAS A.;OSBURN, ANDREW W.;DROST, JASON;BURKE, JAMES F.;BRAULT, JOSEPH M. |
分类号 |
F01N11/00;F01N9/00 |
主分类号 |
F01N11/00 |
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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