Patents by Inventor Dirk Voightlander

Dirk Voightlander has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Exhaust-gas cleaning system with nitrogen oxide accumulator catalyst and sulphur oxide trap and operating method therefor
    Publication number: 20010013223
    Abstract: A method for operating an exhaust-gas cleaning system having an NOX adsorption accumulator and an SOX trap, includes, in normal operating phases, feeding the exhaust gas to be cleaned first via the SOX trap and then via the NOX adsorption accumulator. The normal operating phases are from time to time interrupted by desulphurization phases for desulphurizing the SOX trap. Means are provided for controlling the direction of flow of the exhaust stream so that it optionally passes firstly via the SOX trap and then via the NOX adsorption accumulator, or firstly via the NOX adsorption accumulator and then via the SOX trap, so that during the desulphurization phases the exhaust gas can be passed firstly via the NOX adsorption accumulator and then via the SOX trap.
    Type: Application
    Filed: December 15, 2000
    Publication date: August 16, 2001
    Inventors: Walter Boegner, Josef Gunther, Hans-Peter Holzt, Bernd Krutzsch, Stefan Renfftlen, Christof Schon, Dirk Voightlander, Michel Weibel, Gunter Wenninger