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Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Glatt Systemtechnik Gmbh

Hochschule Fuer Technik Und Wirtschaft Dresden

Guenter Stephani

Frank Bretschneider

Olaf Andersen

Lothar Schneider

Ulf Waag

Gennadi Zikoridse

Herbert Stephan

Juergen Brueckner

Ernstwendelin Bach

Paul Hunkemoeller

The invention relates to a device and a method for the aftertreatment of exhaust gases from combustion engines, in particular from internal combustion engines. The device according to the invention and the method are intended to be of simple construction, should be inexpensive to produce and operate and should have less adverse effect on the flow conditions in the exhaust gas stream. To achieve this object, at least one region which is filled with beads is provided in the exhaust-gas stream, the beads preferably being hollow beads. The exhaust gas from the combustion engine is passed through this region, and it is possible to achieve particle agglomeration with simultaneous separation of these particles. In addition, further regions which are filled with metal fibers may follow the at least one region filled with beads, and the exhaust gas is additionally passed through these further regions.

Method and device for aftertreatment of exhaust gases from combustion engines

The invention relates to hollow balls having shells comprising a sintered inorganic material, such as metals, metal oxides or ceramic, and to methods for producing lightweight structural components using such hollow balls. According to the object of the invention, the application area is to be widened, processing to form structural components is to be made technologically simpler and the properties of the hollow balls and of the structural components produced therewith are to be improved for specific applications. For this purpose, an additional solid functional layer is formed on a shell on the hollow balls. The functional-layer material can then be made able to flow and plastically and/or elastically deformed as a result of a physical and/or chemical treatment.

Hollow balls and a method for producing hollow balls and for producing light-weight structural components by means of hollow balls

Growing community of inventors

Grosserkmannsdorf, Germany

Guenter Stephani