Emitec Gesellschaft Fuer Emissionstechnologie Mbh

Siemens Aktiengesellschaft

Emitec Gesellschaft Fur Emissionstechnologie Mbh

Meike Reizig

Rolf Brück

Jan Hodgson

Rolf Br&uuml;ck

Joachim Grosse

Peter Treiber

Manfred Poppinger

A method for removing soot particles from an exhaust gas of an internal combustion engine, especially of a diesel engine, includes feeding the exhaust gas through a collecting element through which the exhaust gas can pass freely but which is provided with a plurality of deflections and/or zones of swirl and calming or stabilization. At least a proportion of the particles are held or swirled around in the collecting element until there is a sufficient probability of reaction with nitrogen dioxide and a majority of the collected particles have been removed. A collecting element has flow channels through which the exhaust gas can pass freely. However, the flow channels are configured in such a way as to form deflections or zones of swirl and calming or stabilization. A system having the collecting element is also provided.

Method for removing soot particles from an exhaust gas, associated collecting element and system

A particle trap, which may be installed in a pipe, e.g. in an exhaust tract of a motor vehicle, is provided for the agglomeration and oxidation of particles in a fluid flow and includes a multiplicity of substantially rectilinear and mutually parallel flow passages having passage walls with structures. The structures generate swirling, calming and/or dead zones in the fluid flow but keep the particle trap open to the fluid flow. Therefore, the particle trap is an open system in which particles can be kept or precipitated out of a fluid by turbulences in the flow and can be held until they undergo oxidation. Assemblies and exhaust tracts having the particle trap are also provided.

Particle trap and assemblies and exhaust tracts having the particle trap

A fuel cell system is used for on-board power supply in a motor vehicle that is powered by an internal combustion engine. The blower fan that is used to cool the radiator of the engine also cools the fuel cell module and/or it provides the air feed for operating the fuel cell module.

Cooling system for a fuel cell module as part of an on-board power supply

A particle trap, such as in a honeycomb body, for separating particles out of an exhaust gas flow, includes a flow channel. An exhaust gas flow which includes particles flows through the flow channel. Internals, such as projections, humps, protuberances or the like are situated on one side of the flow channel. An opposite region of a channel wall is completely or partially porous. When a flow of exhaust gas which includes particles flows through the particle trap, the particles are diverted toward the porous channel wall, to which they adhere. They can then be removed again by regeneration. The particle trap and an associated process for separating particles out of an exhaust gas flow, are particularly advantageous when used in the exhaust system of an internal-combustion engine, in particular a diesel engine, specifically and advantageously in combination with a soot filter.

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Erpel, Germany

Meike Reizig