Patents by Inventor Dirk Voigtlaender

Dirk Voigtlaender 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).

  • Internal combustion engine exhaust emission control system with adsorbers for nitrogen oxides
    Patent number: 5910097
    Abstract: A motor vehicle exhaust emission control system has two adsorber parts connected in parallel for alternate adsorption and desorption of nitrogen oxides contained in the exhaust from an internal combustion engine and components for conducting further downstream the exhaust that emerges in the adsorber part that is operating at any given time in the adsorption mode and for returning the exhaust that emerges from the other adsorber part that is then operating in the desorption mode, to an intake line of the engine. An oxidizing converter is located upstream of the adsorber part and near the engine for oxidation of the NO contained in the exhaust to form NO.sub.2, so as to permit an increase in the NO.sub.X adsorption rate for the nitrogen adsorber parts.
    Type: Grant
    Filed: July 17, 1997
    Date of Patent: June 8, 1999
    Assignee: Daimler-Benz Aktiengesellschaft
    Inventors: Walter Boegner, Karl-Ernst Haak, Bernd Krutzsch, Wim Verrelst, Dirk Voigtlaender, Guenter Wenninger, Friedrich Wirbeleit