Patents by Inventor Michael Greulich

Michael Greulich 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).

  • Patent number: 10253844
    Abstract: A torsional vibration damping arrangement, in particular mass damper subassembly, having a carrier which can be driven in rotation and a damper mass rotatably deflectable with respect to the carrier against the restoring action of a substantially radially extending damper spring. The damper spring is fixedly clamped in the damper mass and is supported or supportable with respect to the carrier for transmitting circumferential force. The damper spring is clamped between clamping elements arranged at both sides of the damper spring in circumferential direction.
    Type: Grant
    Filed: August 4, 2015
    Date of Patent: April 9, 2019
    Assignee: ZF Friedrichshafen AG
    Inventors: Andreas Orlamünder, Thomas Dögel, Uwe Grossgebauer, Christoph Sasse, Uwe Noras, Günter Fahl, Thomas Walter, Armin Stürmer, Thomas Schubert, Michael Greulich, Martin Hertel, Matthias Fischer
  • Publication number: 20170292586
    Abstract: A torsional vibration damping arrangement, in particular mass damper subassembly, having a carrier which can be driven in rotation and a damper mass rotatably deflectable with respect to the carrier against the restoring action of a substantially radially extending damper spring. The damper spring is fixedly clamped in the damper mass and is supported or supportable with respect to the carrier for transmitting circumferential force. The damper spring is clamped between clamping elements arranged at both sides of the damper spring in circumferential direction.
    Type: Application
    Filed: August 4, 2015
    Publication date: October 12, 2017
    Inventors: Andreas ORLAMÜNDER, Thomas DÖGEL, Uwe GROSSGEBAUER, Christoph SASSE, Uwe NORAS, Günter FAHL, Thomas WALTER, Armin STÜRMER, Thomas SCHUBERT, Michael GREULICH, Martin HERTEL, Matthias FISCHER
  • Patent number: 8042666
    Abstract: A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and the clutch housing, and has first and second flow passages which are axially offset from each other. The hub has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: October 25, 2011
    Assignee: ZF Friedrichshafen AG
    Inventors: Peter Frey, Roland Baumann, Michael Greulich, Georg Mencher, Bernd Reinhardt, Peter Hammer, Patrick Rediger
  • Patent number: 7984800
    Abstract: A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and a flow guide element, which is supported between the hub and the drive-side housing wall, and has first and second flow passages which are axially offset from each other. The flow guide element has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall.
    Type: Grant
    Filed: March 26, 2008
    Date of Patent: July 26, 2011
    Assignee: ZF Friedrichshafen AG
    Inventors: Peter Frey, Roland Baumann, Michael Greulich, Georg Mencher, Bernd Reinhardt, Peter Hammer, Patrick Rediger
  • Publication number: 20080236975
    Abstract: A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and a flow guide element, which is supported between the hub and the drive-side housing wall, and has first and second flow passages which are axially offset from each other. The flow guide element has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: ZF Friedrichshafen AG
    Inventors: Peter Frey, Roland Baumann, Michael Greulich, Georg Mencher, Bernd Reinhardt, Peter Hammer, Patrick Rediger
  • Publication number: 20080236974
    Abstract: A hydrodynamic clutch includes a hydrodynamic circuit formed by at least a pump wheel and a turbine wheel in a clutch housing with a drive-side housing wall extending to the axis of rotation, and a bridging clutch with a piston capable of shifting axially relative to the drive-side housing wall. The turbine wheel is connected to a hub, which is connected for rotation in common to a takeoff, and is axially supported between the hydrodynamic circuit and the clutch housing, and has first and second flow passages which are axially offset from each other. The hub has a drive-side end with an axial bearing area which can be moved into axial contact with an axial bearing, which is either an axial contact surface on the drive-side housing wall or is assigned to the drive-side housing wall.
    Type: Application
    Filed: March 26, 2008
    Publication date: October 2, 2008
    Applicant: ZF Friedrichshafen AG
    Inventors: Peter Frey, Roland Baumann, Michael Greulich, Georg Mencher, Bernd Reinhardt, Peter Hammer, Patrick Rediger