Including Bearing Detail Patents (Class 464/68.5)
  • Patent number: 7530223
    Abstract: The torsional vibration damper includes a drive-side damping element arranged nonrotatably with respect to a flywheel mass element fastened to the drive, and a takeoff-side damping element, which is centered and axially positioned by the flywheel mass element and which is in functional connection with a takeoff. The drive-side damping element is connected to the takeoff-side damping element via elastic elements.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: May 12, 2009
    Assignee: ZF Friedrichshafen AG
    Inventors: Georg Ender, Herbert Johann
  • Patent number: 7445552
    Abstract: A flywheel assembly with an improved bearing structure is provided. The flywheel damper (11) is a flywheel assembly for transmitting torque from the crankshaft of an engine, and has a first flywheel assembly (4), a second flywheel assembly (5), a damper mechanism (6), and a needle bearing (43). The first flywheel assembly (4) is fixed to the crankshaft (2). The second flywheel assembly (5) is disposed so as to be able to rotate relative to the first flywheel assembly (4). The damper mechanism (6) elastically connects the second flywheel assembly (5) to the crankshaft (2) in the rotation direction. The needle bearing (43) is a bearing to support rotatably the second flywheel assembly (5) on the crankshaft (2), and has a plurality of needles (44) disposed between the peripheral surfaces (21d) and (37b) of both members.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: November 4, 2008
    Assignee: Exedy Corporation
    Inventors: Kozo Yamamoto, Hiroyoshi Tsuruta