Patents by Inventor Anette Luther

Anette Luther 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).

  • Method and device for detecting a leak in an exhaust-gas section of a combustion engine
    Patent number: 7881852
    Abstract: A method for checking an exhaust-gas section of a combustion engine for a leak, including the following: introducing secondary air into the exhaust-gas section of the combustion engine via a secondary-air valve, determining a measured value that indicates the magnitude of the relative pressure changes due to the expelling of exhaust gas from the combustion engine upstream from the secondary-air valve, and detecting the leak in the exhaust-gas section as a function of the measured value.
    Type: Grant
    Filed: December 22, 2008
    Date of Patent: February 1, 2011
    Assignees: Robert Bosch GmbH, Audi AG
    Inventors: Detlef Heinrich, Anette Luther
  • Method and device for detecting a leak in an exhaust-gas section of a combustion engine
    Publication number: 20090265074
    Abstract: A method for checking an exhaust-gas section of a combustion engine for a leak, including the following: introducing secondary air into the exhaust-gas section of the combustion engine via a secondary-air valve, determining a measured value that indicates the magnitude of the relative pressure changes due to the expelling of exhaust gas from the combustion engine upstream from the secondary-air valve, and detecting the leak in the exhaust-gas section as a function of the measured value.
    Type: Application
    Filed: December 22, 2008
    Publication date: October 22, 2009
    Inventors: Detlef Heinrich, Anette Luther