Patents by Inventor Stefan Kerschbaumer

Stefan Kerschbaumer 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).

  • Measuring device, preferably a test stand for engines and vehicles for analyzing exhaust gases of a combustion engine
    Patent number: 7637144
    Abstract: The invention relates to a measuring device (1), preferably a test stand for engines and vehicles for analyzing exhaust gases of a combustion engine (2), comprising at least one exhaust gas supply line (3, 4), which can be connected to the exhaust system of the combustion engine (2) and which supplies at least one measuring branch (7, 8, 9) each provided with a respective analysis unit (12, 13, 14) for determining exhaust gas constituents. According to the invention, a filter device (16a to 16f) is provided in at least one cool measuring branch (9) upstream from the analysis unit (14) and/or between different components (14a, 14b) of the analysis unit (14) and/or on the output side of at least one analysis unit (12, 13, 14) of one of the measuring branches (7, 8, 9). This filter unit contains a filter material that is selective with regard to gaseous hydrocarbons, preferably a filter material selected from the group consisting of zeolites and/or silicates.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: December 29, 2009
    Assignee: AVL List GmbH
    Inventors: Aden Hodzic, Stefan Kerschbaumer, Urs Gerspach, Erich Schiefer
  • Measuring Device, Preferably a Test Stand for Engines and Vehicles for Analyzing Exhaust Gases of a Combustion Engine
    Publication number: 20080022752
    Abstract: The invention relates to a measuring device (1), preferably a test stand for engines and vehicles for analyzing exhaust gases of a combustion engine (2), comprising at least one exhaust gas supply line (3, 4), which can be connected to the exhaust system of the combustion engine (2) and which supplies at least one measuring branch (7, 8, 9) each provided with a respective analysis unit (12, 13, 14) for determining exhaust gas constituents. According to the invention, a filter device (16a to 16f) is provided in at least one cool measuring branch (9) upstream from the analysis unit (14) and/or between different components (14a, 14b) of the analysis unit (14) and/or on the output side of at least one analysis unit (12, 13, 14) of one of the measuring branches (7, 8, 9). This filter unit contains a filter material that is selective with regard to gaseous hydrocarbons, preferably a filter material selected from the group consisting of zeolites and/or silicates.
    Type: Application
    Filed: November 25, 2004
    Publication date: January 31, 2008
    Inventors: Aden Hodzic, Stefan Kerschbaumer, Urs Gerspach, Erich Schiefer