Patent ID: 8742640
Filing Date: 2014-06-03
Classification: B60L,H02K,Y02T

Abstract:
1. A magnet power transmission comprising: a first shaft, a first body of magnetic material, a first hub connected to the first body drivably mounted on the first shaft, a copper member secured to the first body, a second shaft, a second body of non-magnetic material located adjacent the copper member, said second body having a plurality of axial bores located in a circular arrangement in said second body, a second hub connected to the second body drivably and slidably mounted on the second shaft, said second hub and second shaft having cooperating members drivably and slideably connecting the second body to the second shaft, a spacer mounted on the second shaft to maintain a space between the second body and copper member secured to the first body, a thrust bearing located around the second shaft and engageable with the first body to maintain axial alignment of the first and second shafts, a permanent magnet located in each of said bores providing a flux force between said first and second bodies to drivably couple said first and second bodies whereby on rotation of the first shaft the second shaft is rotated, and a control device operatively connected to the second body operable to selectively move the second body on the second shaft toward and away from the copper member to vary the flux force between the first and second bodies and the rotational speed of the second shaft.