Daimler Chrysler Ag

Michel Weibl

Bernd Krutzsch

Guenter Wenninger

Frank Duvinage

Walter Friess

Anton Kerckhoff

Alexander Funk

Detlef Scharr

Steffen Digeser

A multi-cylinder air-compressing injection-type internal-combustion engine having a nitric oxide adsorber catalyst and an exhaust gas return device. In order to increase the hydrocarbon fraction in the exhaust gas in front of an exhaust gas aftertreatment device during a regeneration phase and to reduce the oxygen content, exhaust gas pipes of the cylinders are divided into at least two flows, which extend separately from one another at least along a distance. An increased hydrocarbon emission is generated exclusively in the cylinders of one of the flows at times. Another of the flows is connected by way of the exhaust gas return device with an air intake pipe of the internal-combustion engine.

Multi-cylinder air-compressing injection-type internal-combustion engine

Growing community of inventors

Stuttgart, Germany

Michel Weibl