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Dive into the research topics where Guenter Karl is active.

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Featured researches published by Guenter Karl.


Archive | 1997

Lean burn internal combustion engine with periodic nitrogen oxide(s) storage catalyst regeneration control

Dirk Voigtlaender; Guenter Wenninger; Bernd Krutzsch; Walter Boegner; Guenter Karl; Christoph Dr Ing Schoen


Archive | 2000

Process and system for purifying exhaust gases of an internal-combustion engine

Walter Boegner; Guenter Karl; Bernd Krutzsch; Christof Schoen; Dirk Voigtlaender; Guenter Wenninger


Archive | 1998

Internal-combustion engine system having a nitrogen oxide storage catalyst and an operating process therefor

Walter Boegner; Guenter Karl; Bernd Krutzsch; Christof Schoen; Dirk Voigtlaender; Guenter Wenninger


Archive | 1996

Reducing emissions of internal combustion engine

Guenter Karl; Roland Kemmler


Archive | 2000

Fuel feed system for a spark-ignition internal combustion engine and a method of operating such an internal combustion engine

Juergen Frey; Guenter Karl; Stephan Kraemer


Archive | 2000

Method for the periodically desulfating a nitrogen oxide or sulfur oxide accumulator of an exhaust gas cleaning system

Walter Boegner; Guenter Karl; Bernd Krutzsch; Stefan Renfftlen; Christof Schoen; Dirk Voigtlaender; Guenter Wenninger


Archive | 1997

Method of controlling an adjustable operating parameter of an internal combustion engine with direct fuel injection

Roland Kemmler; Guenter Karl; Peter Hohner; Bernd Baur


Archive | 1997

Method of providing an ignitable fuel/air mixture in an internal combustion engine with direct fuel injection

Klaus Roessler; Stephan Kraemer; Guenter Karl; Christian Enderle


Archive | 1999

Verfahren zur periodischen Desulfatisierung eines Stickoxid- oder Schwefeloxid-Speichers einer Abgasreinigungsanlage

Dirk Voigtlaender; Guenter Wenninger; Bernd Krutzsch; Walter Boegner; Guenter Karl; Christof Schoen; Stefan Renfftlen


Archive | 1999

Periodic desulfurization of a nitrogen oxide or sulfur oxide storage device in a vehicle I.C. engine comprises adjusting the storage air ratio by changing the secondary air amount introduced and/or the engine air ratio

Dirk Voigtlaender; Guenter Wenninger; Bernd Krutzsch; Walter Boegner; Guenter Karl; Christof Schoen; Stefan Renfftlen

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