Patents by Inventor Christian Rufer

Christian Rufer 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).

  • Radial compressor stage
    Patent number: 10132331
    Abstract: In a radial compressor stage for a radial compressor having a rotor side, the radial compressor stage includes a stator; and an impeller configured to rotate relative to the stator. The impeller has multiple impeller blades on the rotor side. Each of the multiple impeller blades has: a flow inlet edge, a flow outlet edge, a suction side extending between the flow inlet edge and the flow outlet edge, a pressure side, and an outer surface facing the stator. At least one groove is arranged in the outer surface of at least one of the multiple impeller blades, the at least one groove being bounded by a longitudinal web both on the suction side and on the pressure side. Each of the longitudinal webs forms a sealing tip of the respective impeller blade towards the stator.
    Type: Grant
    Filed: December 16, 2014
    Date of Patent: November 20, 2018
    Assignee: MAN Energy Solutions SE
    Inventors: Thomas Mokulys, Sebastiano Mauri, Marcel Bühler, Damian Schärz, Christian Rufer
  • RADIAL COMPRESSOR STAGE
    Publication number: 20150167696
    Abstract: In a radial compressor stage for a radial compressor having a rotor side, the radial compressor stage includes a stator; and an impeller configured to rotate relative to the stator. The impeller has multiple impeller blades on the rotor side. Each of the multiple impeller blades has: a flow inlet edge, a flow outlet edge, a suction side extending between the flow inlet edge and the flow outlet edge, a pressure side, and an outer surface facing the stator. At least one groove is arranged in the outer surface of at least one of the multiple impeller blades, the at least one groove being bounded by a longitudinal web both on the suction side and on the pressure side. Each of the longitudinal webs forms a sealing tip of the respective impeller blade towards the stator.
    Type: Application
    Filed: December 16, 2014
    Publication date: June 18, 2015
    Inventors: Thomas MOKULYS, Sebastiano Mauri, Marcel Bühler, Damian Schärz, Christian Rufer