Patents by Inventor Gottfried Raah

Gottfried Raah 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).

  • Supercharged internal combustion engine with an expander unit in a heat recovery circuit
    Patent number: 7845171
    Abstract: A supercharged internal combustion engine of a motor vehicle has a cooling circuit, in which a working medium is recycled, which is conveyed at least partially in a vaporous or gaseous physical state. At least one expander unit is provided which is operatively connected with an output shaft of the internal combustion engine via a power train. Via a conversion of energy contained in the at least partially vaporous or gaseous working medium in the expander unit, an output shaft of the expander unit is moveable. The expander unit is embodied as a two-cycle reciprocating engine, which is operatively connected directly or indirectly via the power train with the output shaft of the internal combustion engine.
    Type: Grant
    Filed: June 20, 2007
    Date of Patent: December 7, 2010
    Assignee: MAN Nutzfahrzeuge AG
    Inventors: Heribert Möller, Gottfried Raah
  • Supercharged Internal Combustion Engine with an Expander Unit in a Heat Recovery Circuit
    Publication number: 20080223040
    Abstract: A supercharged internal combustion engine of a motor vehicle has a cooling circuit, in which a working medium is recycled, which is conveyed at least partially in a vaporous or gaseous physical state. At least one expander unit is provided which is operatively connected with an output shaft of the internal combustion engine via a power train. Via a conversion of energy contained in the at least partially vaporous or gaseous working medium in the expander unit, an output shaft of the expander unit is moveable. The expander unit is embodied as a two-cycle reciprocating engine, which is operatively connected directly or indirectly via the power train with the output shaft of the internal combustion engine.
    Type: Application
    Filed: June 20, 2007
    Publication date: September 18, 2008
    Inventors: Heribert Moller, Gottfried Raah