发明名称 |
METHOD AND INTERNAL COMBUSTION ENGINE ARRANGEMENT FOR REGENERATING AN EXHAUST AFTER-TREATMENT DEVICE |
摘要 |
A process is provided for regenerating an exhaust gas after-treatment device in an exhaust line of an internal combustion engine arrangement, the exhaust line including a particle filter. The process includes identifying when soot loading of the particle filter exceeds a predetermined level. After that, temperature of exhaust gases at the particle filter is maintained within a first temperature range until at least one of a predetermined period of time has lapsed or a determination is made that soot loading of the particle filter is below the predetermined level. After that, the temperature of the exhaust gases at the particle filter is increased to within a second temperature range above the first temperature range. An internal combustion engine arrangement is also disclosed. |
申请公布号 |
US2016053648(A1) |
申请公布日期 |
2016.02.25 |
申请号 |
US201314779019 |
申请日期 |
2013.04.03 |
申请人 |
RENAULT TRUCKS ;VOLVO TRUCK CORPORATION |
发明人 |
IOJOIU Eduard Emil;POURRET Raphaël;PETERSSON Martin;HÄGGENDAL Björn;DAHL Johan |
分类号 |
F01N3/20;F01N3/023 |
主分类号 |
F01N3/20 |
代理机构 |
|
代理人 |
|
主权项 |
1. A process for regenerating an exhaust gas after-treatment device adapted to be fitted in an exhaust line of an internal combustion engine arrangement, wherein the exhaust gas after-treatment device comprises a particle filter wherein the process comprising the steps of:
a) setting the temperature of the exhaust gases at the particle filter within a first temperature range comprised between 420 and 550 degrees Celsius; b) maintaining the temperature of the exhaust gases at the particle filter at the first temperature range during a first period of time; c) after the first period of time, further gradually increasing the temperature at the particle filter to a second temperature range which is over 550° degrees Celsius. |
地址 |
Saint Priest FR |