Landing gear drive systems
AssigneeAirbus Operations GmbH
InventorArnaud DIDEY
Life of this patent
Estimating the term…
Abstract
A drive system for rotating a wheel of an aircraft landing gear 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 comprises a first sprocket and the other of the first drive pinion and the driven gear comprises a series of rollers 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.
Claims16
A drive system for rotating a wheel of an aircraft landing gear, the drive system including 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, wherein 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, and wherein one of the first drive pinion and the driven gear comprises a first sprocket and the other of the first drive pinion and the driven gear comprises a series of rollers 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.
An aircraft landing gear having a wheel and a drive system according to 7, wherein the driven gear of the drive system is fixed to the wheel.
A drive system for rotating a wheel of an aircraft landing gear, including a motor, a first drive pinion rotatable by the motor via a first drive path, a second drive pinion rotatable by the motor via a second drive path, and a driven gear adapted to be fixed to the wheel, wherein the drive system is switchable between:
- 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;
- and a second configuration in which the second drive pinion is capable of meshing with the driven gear to permit the motor to drive the driven gear via the second drive path, and wherein the first drive path has a higher gearing ratio than the second drive path.
An aircraft landing gear as claimed in 15, wherein the drive system is supported by a bracket which is rigidly connected to an axle, main fitting, or slider part of the landing gear.
Dependencies are inferred from the claim text.