A drive system for rotating one or more wheels of an aircraft landing gear for the purposes of ground taxiing and/or spin-up prior to landing includes a motor operable to rotate a first drive pinion via a first drive path, and a driven gear adapted to be fixed to the wheel. The drive system has a first configuration in which the first drive pinion is capable of meshing with the driven gear to permit the motor to drive the driven gear via the first drive path. One of the first drive pinion and the driven gear includes a first sprocket and the other of the first drive pinion and the driven gear includes a series of rollers arranged in two or more rows, each row of rollers being arranged to form a ring, each roller being rotatable about a roller axis at a fixed distance from an axis of rotation of the first drive pinion or driven gear, respectively.
LANDING GEAR DRIVE SYSTEMS
2015-07-30
Patent
Electronic Resource
English