Patents by Inventor Lothar Lenke

Lothar Lenke 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).

  • Exhaust gas turbocharger for an internal combustion engine
    Patent number: 6854272
    Abstract: An exhaust gas turbocharger for an internal combustion engine, which has an exhaust gas turbine in the exhaust system and a compressor in the induction system, comprises a variable turbine geometry, associated with the turbine, for adjustably setting a radial inlet cross section for the flow to the turbine rotor. The variable turbine geometry is configured as a guide cascade ring, which has guide vanes distributed over the periphery and encompasses the turbine rotor. The minimum distance between two adjacent guide vanes obeys a specified relationship with respect to the diameter of the turbine rotor and the number of guide vanes of the guide cascade ring. In addition, a flow edge is provided on the radially inner surface of each guide vane.
    Type: Grant
    Filed: October 30, 2002
    Date of Patent: February 15, 2005
    Assignee: DaimlerChrysler AG
    Inventors: Helmut Finger, Lothar Lenke, Erwin Schmidt, Siegfried Sumser
  • Exhaust gas turbocharger for an internal combustion engine
    Publication number: 20030079474
    Abstract: An exhaust gas turbocharger for an internal combustion engine, which has an exhaust gas turbine in the exhaust system and a compressor in the induction system, comprises a variable turbine geometry, associated with the turbine, for adjustably setting a radial inlet cross section for the flow to the turbine rotor. The variable turbine geometry is configured as a guide cascade ring, which has guide vanes distributed over the periphery and encompasses the turbine rotor. The minimum distance between two adjacent guide vanes obeys a specified relationship with respect to the diameter of the turbine rotor and the number of guide vanes of the guide cascade ring. In addition, a flow edge is provided on the radially inner surface of each guide vane.
    Type: Application
    Filed: October 30, 2002
    Publication date: May 1, 2003
    Applicant: DAIMLERCHRYSLER AG
    Inventors: Helmut Finger, Lothar Lenke, Erwin Schmidt, Siegfried Sumser