Method for operating a diesel engine

The invention relates to a method for operating a diesel engine in which an air ratio (lambda) of the fuel which is to be burnt and of the combustion air supplied is set by a control unit ( 14 ) according to predetermined values. When a value ( 15 ) which is predetermined as a switching criterion is...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	ERLENMAYER OLIVER, ALLMENDINGER KLAUS, LENZ MICHAEL, LIEBSCHER THOMAS, MERTEN ULRICH, KURZE STEFAN, BECKER DIRK, ROLL ANDREAS, HASERT ANDREAS, KERCKHOFF ANTON, RUZICKA NORBERT, HEMBERGER HANS-HUBERT, ADLER HOLGER
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TOTRANSPORTATION COMBUSTION ENGINES CONTROLLING COMBUSTION ENGINES ENGINE PLANTS IN GENERAL GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEATING HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS LIGHTING MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING STEAM ENGINES TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a method for operating a diesel engine in which an air ratio (lambda) of the fuel which is to be burnt and of the combustion air supplied is set by a control unit ( 14 ) according to predetermined values. When a value ( 15 ) which is predetermined as a switching criterion is recorded, the control unit ( 14 ) switches to a special operating mode for regeneration of a catalytic converter ( 22 ) and sets the fuel/air ratio according to predetermined values for this operating mode. To achieve more effective regeneration of the catalytic converter, according to the invention it is provided that at least one afterinjection, which is separated in time from a main injection, of fuel which is also to be burnt takes place in the special operating mode.