Patents by Inventor Michael Hoelle

Michael Hoelle 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).

  • Coolant circuit for an internal combustion engine and method of making and using same
    Patent number: 6786183
    Abstract: A coolant circuit is provided for an internal combustion engine, with a coolant radiator, at least one mechanical coolant pump and at least one electrical coolant pump for a cooling circuit having a coolant inflow and for a heating circuit having a coolant return, in each case with at least one heat exchanger, the mechanical coolant pump and/or the electrical coolant pump being assigned to the heating and/or cooling circuit, and the mechanical pump being capable of being cut in and cut out or of being throttled.
    Type: Grant
    Filed: November 8, 2002
    Date of Patent: September 7, 2004
    Assignee: DaimlerChrysler AG
    Inventors: Michael Hoelle, Roland Kemmler, Erhard Rau, Hubert Schnuepke
  • Coolant circuit for an internal combustion engine and method of making and using same
    Publication number: 20030094147
    Abstract: A coolant circuit is provided for an internal combustion engine, with a coolant radiator, at least one mechanical coolant pump and at least one electrical coolant pump for a cooling circuit having a coolant inflow and for a heating circuit having a coolant return, in each case with at least one heat exchanger, the mechanical coolant pump and/or the electrical coolant pump being assigned to the heating and/or cooling circuit, and the mechanical pump being capable of being cut in and cut out or of being throttled.
    Type: Application
    Filed: November 8, 2002
    Publication date: May 22, 2003
    Inventors: Michael Hoelle, Roland Kemmler, Erhard Rau, Hubert Schnuepke