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  • Patent number: 7143734
    Abstract: A compensator assembly for a motorcycle engine including a hub and a compensator coupled to the engine crankshaft. The compensator is axially moveable along the crankshaft axis and a sprocket is supported for rotation with respect to the crankshaft. Cam surfaces on the compensator and the sprocket cooperate to transfer engine torque from the crankshaft to the sprocket. A spring biases the compensator into engagement with the sprocket and a resilient member is positioned between the hub and the compensator to resiliently limit axial movement of the compensator toward the hub. Torque pulses from the engine are damped by allowing relative rotation between the sprocket and the crankshaft.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: December 5, 2006
    Assignee: Harley-Davidson Motor Company Group, Inc.
    Inventors: Robert L. Leppanen, Dereck Schlett, Michael Duley, Richard M. Runte, Jalal M. Albulushi, Richard G. Dykowski
  • Patent number: 7682255
    Abstract: A compensator assembly for transmitting torque from a crankshaft of an engine to a clutch in a motorcycle drive train. The compensator assembly includes a cam slider, a sprocket, and a spring pack biasing the cam slider into engagement with the sprocket. The spring pack includes multiple springs having different spring rates. The cam slider includes first and second dissimilar cam members. A retainer is coupled to the crankshaft and formed with an anti-rotation feature engageable to hold the retainer, the cam slider, and the crankshaft stationary during tightening of a retaining bolt. The sprocket includes a plurality of spokes and axial openings. At least a portion of the cam slider extends through one of the plurality of axial openings.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: March 23, 2010
    Assignee: Harley-Davidson Motor Company Group, LLC
    Inventors: Karl W. Monis, James R. Pepper, Andy J. Bingen, John W. Schanz, Nathan R. Waas, Thomas A. Lanser, Rick A. Schmidt, Jeffrey D. Dickau, Wayne G. Farvour