Patents by Inventor Dirk Köthen

Dirk Köthen 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).

  • Fuel injection nozzle
    Patent number: 7963461
    Abstract: Disclosed is a fuel injection nozzle comprising a cooling duct (6) that is disposed in the final region of a housing (1), which faces the combustion chamber. In order to cool the zones that are subjected to high thermal stress, the cooling duct (6) is positioned closer to the bore (2) of the valve needle than to the external face of the housing (1) and is provided with a cross-sectional area that has a width corresponding to no more than the height which extends in the axial direction of the nozzle.
    Type: Grant
    Filed: May 28, 2004
    Date of Patent: June 21, 2011
    Assignee: MAN B&W Diesel AG
    Inventors: Dirk Köthen, Gertrud Meggenrieder, Dietmar Pinkernell, Andreas Stichnoth, Hakan Yalcin