Patents Assigned to Dr.-Ing. Ulrich Rohs
  • Device for changing the flow rate in a torsional oscillation damper
    Patent number: 5078246
    Abstract: A device for changing the flow rate of a liquid damping medium is a torsional vibration damper. This damper has a rotating cylindrical damper housing, connected between a drive shaft and a power takeoff shaft. Pinions are surface-mounted in a planetary fashion without axle journals between the axial faceplates of a gear pump in recesses in the pump interior. The pinions are engaged with a central gear seated on the power takeoff shaft or on drive shaft, which form gear pumps for closed circulation of the damping medium.
    Type: Grant
    Filed: June 4, 1990
    Date of Patent: January 7, 1992
    Assignee: Dr.-Ing. Ulrich Rohs
    Inventors: Ulrich Rohs, Hans Rohs, Dietmar Heidingsfeld, Hans Petri