EP 2935851 B1 20160504 - METHOD FOR REGENERATING AN EGR COOLER
Title (en)
METHOD FOR REGENERATING AN EGR COOLER
Title (de)
VERFAHREN ZUR REGENERATION EINES EGR-KÜHLERS
Title (fr)
PROCÉDÉ DE RÉGÉNÉRATION D'UN REFROIDISSEUR RGE
Publication
Application
Priority
- AT 506032012 A 20121220
- EP 2013075266 W 20131202
Abstract (en)
[origin: WO2014095329A1] The invention relates to a method for regenerating an EGR cooler (6) in an EGR tract (5) arranged between an exhaust system (3) and an intake system (2) of an internal combustion engine (1), wherein, in the EGR tract (5), there is arranged at least one EGR cooler (6) which has at least one first exhaust-gas flow path (31) and which can be bypassed by means of at least one bypass line (8) which has at least one second exhaust-gas flow path (32), wherein operation for regeneration of the EGR cooler (6) is carried out during at least a cold-start and warm-up phase of the internal combustion engine (1). To be able to carry out an effective regeneration of the EGR cooler (6), it is provided that, during a saturation phase, condensed water from the exhaust-gas volume from the combustion process is absorbed in the EGR cooler (6) by a secondary layer (22), situated at the exhaust-gas side, of the accumulated dirt (20) on the wall of the EGR cooler (6), and in that, during a cleaning phase in the warm-up phase of the internal combustion engine (1), the absorbed water is heated and expands such that the secondary layer (22) is removed.
IPC 8 full level
F02D 21/08 (2006.01); F02M 26/25 (2016.01); F02M 26/28 (2016.01); F02M 26/33 (2016.01); F02M 26/35 (2016.01); F02M 26/50 (2016.01)
CPC (source: EP)
F02D 21/08 (2013.01); F02M 26/25 (2016.02); F02M 26/28 (2016.02); F02M 26/33 (2016.02); F02M 26/35 (2016.02); F02M 26/37 (2016.02); F02M 26/50 (2016.02)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
WO 2014095329 A1 20140626; AT 513048 A4 20140115; AT 513048 B1 20140115; EP 2935851 A1 20151028; EP 2935851 B1 20160504
DOCDB simple family (application)
EP 2013075266 W 20131202; AT 506032012 A 20121220; EP 13802315 A 20131202