Patents by Inventor Wolfgang Sladek

Wolfgang Sladek 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).

  • Method for controlling an engine braking device of an internal combustion engine and internal combustion engine for a motor vehicle
    Patent number: 8312720
    Abstract: In an internal combustion engine comprising an exhaust gas turbocharger, which includes a compressor with a compressor wheel arranged in an inlet tract of the internal combustion engine and a turbine with a turbine wheel coupled rotationally to the compressor wheel and arranged in an at least two-path exhaust gas tract of which is connected to an exhaust gas guide section of the turbine including at least a first spiral channel coupled to the first exhaust path and a second spiral channel coupled to a second exhaust gas path, two guide vane elements are arranged upstream of the turbine wheel and downstream of respective spiral channels which are formed corresponding to a first degree of asymmetry A1 determined as a quotient ? of a first mass flow parameter and a second mass flow parameter which is between 0.4 and 0.8.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: November 20, 2012
    Assignee: Daimler A G
    Inventors: Stephan Krätschmer, Wolfram Schmid, Wolfgang Sladek, Siegfried Sumser
  • Method for controlling an engine braking device of an internal combustion engine and internal combustion engine for a motor vehicle
    Publication number: 20100300090
    Abstract: In an internal combustion engine comprising an exhaust gas turbocharger, which includes a compressor with a compressor wheel arranged in an inlet tract of the internal combustion engine and a turbine with a turbine wheel coupled rotationally to the compressor wheel and arranged in an at least two-path exhaust gas tract of which is connected to an exhaust gas guide section of the turbine including at least a first spiral channel coupled to the first exhaust path and a second spiral channel coupled to a second exhaust gas path, two guide vane elements are arranged upstream of the turbine wheel and downstream of respective spiral channels which are formed corresponding to a first degree of asymmetry A1 determined as a quotient ? of a first mass flow parameter and a second mass flow parameter which is between 0.4 and 0.8.
    Type: Application
    Filed: June 11, 2010
    Publication date: December 2, 2010
    Inventors: Stephan Krätschmer, Wolfram Schmid, Wolfgang Sladek, Siegfried Sumser