Patents by Inventor Michael Käsbauer

Michael Käsbauer 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 for the functional diagnosis of an exhaust recycling system on an internal combustion engine
    Patent number: 6701245
    Abstract: The invention relates to the diagnosis of an exhaust gas recycling valve, whereby, on switching off the internal combustion engine, the throttle valve and the exhaust recycling valve are closed and a check is made of whether a compression is detectable in the cylinders of the internal combustion engine, by means of an engine speed check within a segment. Should an engine speed difference (Ndiff) be greater than a threshold value (Ndiff SW), then an incompletely closed exhaust gas recycling valve is recognized, assuming a complete closure of the throttle valve.
    Type: Grant
    Filed: February 4, 2003
    Date of Patent: March 2, 2004
    Assignee: Siemens Aktiengesellschaft
    Inventors: Christian Birkner, Michael Käsbauer