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US 12,319,437 B2Granted
Dual-rotor self-lift power drive unit
AssigneeGoodrich Corporation
InventorsDustin P. Scheer, Scott P. Harms
Life of this patent
Estimating the term…
Abstract
A power drive unit for moving cargo relative to a cargo bay of an aircraft is disclosed herein. The power drive unit includes a lift cam coupled to camshaft, a drive wheel coupled to a drive shaft, and an induction motor having a first output shaft and a second output shaft, the first output shaft configured to drive the drive shaft and the second output shaft configured to drive the camshaft.
Claims18
A power drive unit for moving cargo relative to a cargo bay of an aircraft, comprising:
- a lift cam coupled to a camshaft;
- a drive wheel coupled to a drive shaft;
- an induction motor having a first output shaft and a second output shaft, the first output shaft configured to drive the drive shaft and the second output shaft configured to drive the camshaft;
- a first gear directly coupled to the first output shaft and configured to drive the drive shaft;
- and
- a second gear directly coupled to the second output shaft and configured to drive the camshaft, the second gear being operably independent from the first gear.
3 more elements
An aircraft cargo system, comprising:
- a cargo bay having a conveyer plane;
- and
- a power drive unit for moving cargo configured to raise and lower with respect to the conveyer plane, the power drive unit including:
- a camshaft;
- a drive shaft;
- an induction motor having a first output shaft and a second output shaft, the first output shaft configured to drive the drive shaft and the second output shaft configured to drive the camshaft;
- a first gear directly coupled to the first output shaft and configured to drive the drive shaft;
- and
- a second gear directly coupled to the second output shaft and configured to drive the camshaft, the second gear being independent of the first gear.
6 more elements
A power drive unit, comprising:
- a first gear assembly configured to drive a wheel;
- a second gear assembly configured to drive a camshaft;
- an induction motor including:
- a first rotor including a first rotor cast portion coupled to a first output shaft, the first output shaft directly coupled to the first gear assembly;
- a second rotor including a second rotor cast portion coupled to a second output shaft, the second output shaft directly coupled to the second gear assembly;
- and
- a stator, the stator being disposed around the first rotor cast portion and the second rotor cast portion.
4 more elements
Dependencies are inferred from the claim text.