FLEX SPLINE TORQUE TRANSFER DEVICE
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United States of America Patent
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May 6, 2015
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May 6, 2014
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Abstract
A flex spline torque transfer device has a flex spline that is deflected in the radial direction by magnetic attraction to form a wave. The flex spline may be deflected radially inward by magnetic attraction to form a wave. The flex spline (FS) may be deflected radially inward by magnetic attraction at one or more positions equally spaced around the FS inner diameter (ID). The attraction may be greatest at smallest radial air gap between FS and magnetic means and lowest at largest air gap. The magnetic means may or may not be actively commutated. The highest magnetic force may be determined by the smallest air gap. In another embodiment, a torque transfer device has a flex spline that is deflected radially inward by magnetic attraction to a permanent magnet means at one or more positions equally spaced around the FS ID.
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