Patents by Inventor Fritz-Reinhard Grosche

Fritz-Reinhard Grosche 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).

  • Apparatus for influencing the flow separation from a body immersed in the flow
    Patent number: 6176454
    Abstract: An apparatus serves for influencing the separation of a flow 2 from a body 1 immersed in the flow. The apparatus excites a shear layer 11 of the flow 2 at the immersed body 1 by periodic blowing and suction in order to act against further separation of the shear layer 11 from the immersed body 1. For this purpose, the apparatus has at least one passive cavity resistor 46, the hollow cylinder 4 of which has at least one opening 6 leading to the surface 10 of the body 1. The cavity resonator 46 is excited by the flow 2 thus creating compressional vibrations, and the compressional vibrations of the cavity resonator 46 excite the shear layer 11.
    Type: Grant
    Filed: August 13, 1998
    Date of Patent: January 23, 2001
    Assignee: Deutsches Zentrum fur Luft-und Raumfahrt e,V
    Inventors: Fritz-Reinhard Grosche, Viktor Bader