Patents by Inventor Marcel Semrau

Marcel Semrau 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 system for a two-stroke engine
    Patent number: 12006860
    Abstract: A turbocharger and method of controlling the same includes a turbine housing comprising an inlet and an outlet, turbine wheel coupled to a shaft. The turbine housing comprising a first scroll and a second scroll for fluidically coupling the inlet and the turbine wheel. The first scroll has a first end adjacent the inlet and a second end adjacent the turbine wheel. The second scroll has a third end adjacent the inlet and a fourth end adjacent the turbine wheel. An exhaust gas diverter valve is coupled to the turbine housing restricting flow into the first scroll or the second scroll.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: June 11, 2024
    Assignee: Polaris Industries Inc.
    Inventors: James H. Buchwitz, Lucas R. Salfer, Derek Zimney, Tim Keller, Karsten Scholle, Marcel Semrau, Clifton J. Seusy
  • Turbocharger System For A Two-Stroke Engine
    Publication number: 20230243293
    Abstract: A turbocharger and method of controlling the same includes a turbine housing comprising an inlet and an outlet, turbine wheel coupled to a shaft. The turbine housing comprising a first scroll and a second scroll for fluidically coupling the inlet and the turbine wheel. The first scroll has a first end adjacent the inlet and a second end adjacent the turbine wheel. The second scroll has a third end adjacent the inlet and a fourth end adjacent the turbine wheel. An exhaust gas diverter valve is coupled to the turbine housing restricting flow into the first scroll or the second scroll.
    Type: Application
    Filed: April 12, 2023
    Publication date: August 3, 2023
    Inventors: James H. Buchwitz, Lucas R. SALFER, Derek ZIMNEY, Tim KELLER, Karsten SCHOLLE, Marcel SEMRAU, Clifton J. SEUSY
  • Turbocharger system for a two-stroke engine
    Patent number: 11174779
    Abstract: A turbocharger and method of controlling the same includes a turbine housing comprising an inlet and an outlet, turbine wheel coupled to a shaft. The turbine housing comprising a first scroll and a second scroll for fluidically coupling the inlet and the turbine wheel. The first scroll has a first end adjacent the inlet and a second end adjacent the turbine wheel. The second scroll has a third end adjacent the inlet and a fourth end adjacent the turbine wheel. An exhaust gas diverter valve is coupled to the turbine housing restricting flow into the first scroll or the second scroll.
    Type: Grant
    Filed: November 22, 2019
    Date of Patent: November 16, 2021
    Assignee: Polaris Industries Inc.
    Inventors: James H. Buchwitz, Derek D. Zimney, Lucas R. Salfer, Tim Keller, Marcel Semrau, Karsten Scholle