Patents by Inventor Stephan Krätschrner

Stephan Krätschrner 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).

  • Turbocharger for an internal combustion engine of a motor vehicle
    Patent number: 8621863
    Abstract: In a turbocharger for an internal combustion engine of a motor vehicle, comprising a turbine housing having first and second spiral passages, each of which is connected to at least one exhaust gas line of an exhaust train of the internal combustion engine and a turbine wheel disposed within a rotor chamber of the turbine housing and connected to a compressor impeller via a drive shaft for rotation with the impeller, the exhaust gas of the internal combustion engine can be routed through the spiral passages for admission to the turbine wheel via the first and second spiral passages which have different wrap angles around the turbine wheel.
    Type: Grant
    Filed: October 22, 2010
    Date of Patent: January 7, 2014
    Assignee: Daimler AG
    Inventors: Stephan Krätschrner, Wolfram Schmid, Michael Stiller, Siegfried Sumser
  • Turbocharger for an Internal combustion engine of a motor vehicle and internal combustion engine
    Publication number: 20110079009
    Abstract: In a turbocharger for an internal combustion engine of a motor vehicle, comprising a turbine housing having first and second spiral passages, each of which is connected to at least one exhaust gas line of an exhaust train of the internal combustion engine and a turbine wheel disposed within a rotor chamber of the turbine housing and connected to a compressor impeller via a drive shaft for rotation with the impeller, the exhaust gas of the internal combustion engine can be routed through the spiral passages for admission to the turbine wheel via the first and second spiral passages which have different wrap angles around the turbine wheel.
    Type: Application
    Filed: October 22, 2010
    Publication date: April 7, 2011
    Inventors: Stephan Krätschrner, Wolfram Schmid, Michael Stiller, Siegfried Sumser