Patents by Inventor Steffen Hunkert

Steffen Hunkert 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).

  • Patent number: 6520145
    Abstract: A fuel injection valve for an internal combustion engine includes a valve body having a valve seat face. A valve member has a valve sealing face that interacts with the valve seat face for forming a sealing cross section. The valve member is displaceable along an axial direction in the valve body. The valve body has a wall with injection holes formed therein which are provided downstream of the sealing cross section as seen in a fuel flow direction. The injection holes are coneshaped injection holes and at least two of the injection holes have different cone angles.
    Type: Grant
    Filed: December 3, 2001
    Date of Patent: February 18, 2003
    Assignee: Volkswagen AG
    Inventor: Steffen Hunkert
  • Publication number: 20020043574
    Abstract: A fuel injection valve for an internal combustion engine includes a valve body having a valve seat face. A valve member has a valve sealing face that interacts with the valve seat face for forming a sealing cross section. The valve member is displaceable along an axial direction in the valve body. The valve body has a wall with injection holes formed therein which are provided downstream of the sealing cross section as seen in a fuel flow direction. The injection holes are cone-shaped injection holes and at least two of the injection holes have different cone angles.
    Type: Application
    Filed: December 3, 2001
    Publication date: April 18, 2002
    Inventor: Steffen Hunkert
  • Patent number: 6050916
    Abstract: A toothed belt drive or chain drive has at least one toothed gear wheel and at least one toothed belt or chain. At least one tooth of the toothed gear wheel and/or at least one tooth of the toothed belt or at least one link of the chain has a flank geometry which is different from that of each of the other teeth.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: April 18, 2000
    Assignee: Volkswagen AG
    Inventor: Steffen Hunkert