Patent ID: 9340276
Filing Date: 2016-05-17
CPC Classification: B64C,B64D,B65G,Y02T

Claim Text:
1. A power drive unit, PDU, comprising: a plurality of diagonal rollers arranged at a circumference around a central roller axis and each of the plurality of diagonal rollers having a respective diagonal roller axis; a first drive motor coupled to a roller carrier and configured to rotate the plurality of diagonal rollers around the central roller axis; a second drive motor coupled to a gear carrier and configured to rotate each of the diagonal rollers around the respective diagonal roller axis; an epicyclic gearing having a sun gear coupled to the roller carrier, and planetary gears coupled to the gear carrier; and a plurality of bevel gears, each bevel gear being connected to respective ones of the diagonal roller axes and being in operative connection to the planetary gears, wherein the diagonal roller axes are tilted by a common skew angle with respect to the central roller axis.