Daimler Chrysler Ag

Purem Abgassysteme Gmbh & Co. Kg

Purem Abgassystem Gmbh & Co. Kg

Alexander Funk

Georg Huthwohl

Bernd Maurer

Bernd Krutzsch

Guenter Wenninger

Frank Duvinage

Klaus Binder

Gerhard Fraenkle

Walter Friess

Anton Kerckhoff

Detlef Scharr

Peter Ebel

Klaus-Juergen Marquardt

Steffen Digeser

Ansgar Schaefer

Michel Weibl

A device for exhaust-gas purification utilizes reduction of nitrogen oxides which are present in the exhaust gas from internal combustion engines by way of gaseous ammonia with an SCR catalytic converter. The functions of the device are monitored with regard to their line paths with connections, valves and sensors by referring to these elements themselves using suitable control circuitry via the evaluation and control unit.

Device for exhaust-gas purification, and an operating and monitoring for said device

An exhaust gas purification system for denoxing exhaust gases of a combustion unit on an SCR catalyst utilizing ammonia (NH ) additionally introduced into the exhaust gas flow before the SCR catalyst which has at least one reducing agent container in which the NH ( ) to be supplied to the exhaust gas flow is stored, which container is connected via a supply line with the exhaust gas line and is adapted so that at least one reducing agent container is held in a docking device as a portion of the exhaust gas purification system and, via a coupling is connected with the supply line Of coupling one coupling part is associated with the docking device and the other coupling part with the container so that both coupling parts can be engaged with one another via an axial movement directed toward one another. The docking device and the at least one container have cooperating guide through which the container under guidance can be brought into its specified position for joining the two coupling parts

Exhaust gas purification system

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

Altbach, Germany

Alexander Funk