Patents by Inventor Helge Djie

Helge Djie 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).

  • Combustion engine comprising a control cam
    Patent number: 7533640
    Abstract: The invention relates to a contoured body having an additional cam contour for effecting a valve control of a piston combustion engine that is used, in particular, for an internal exhaust gas recirculation.
    Type: Grant
    Filed: August 13, 2004
    Date of Patent: May 19, 2009
    Assignees: Fev Motorentechnik GmbH, Mahle Ventiltrieb GmbH
    Inventors: Joachim Hahn, Helge Djie, Sven Lauer, Markus Duesmann, Falk Schneider, Christopher Steinmetz, Hermann Hoffmann, Martin Lechner
  • Combustion Engine Comprising A Control Cam
    Publication number: 20080115750
    Abstract: The invention relates to a contoured body having an additional cam contour for effecting a valve control of a piston combustion engine that is used, in particular, for an internal exhaust gas recirculation.
    Type: Application
    Filed: August 13, 2004
    Publication date: May 22, 2008
    Inventors: Joachim Hahn, Helge Djie, Sven Lauer, Markus Duesmann, Falk Schneider, Christopher Steinmetz, Hermann Hoffmann, Martin Lechner