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US 12,583,578 B2Granted
Aircraft landing gear arrangement
AssigneeAirbus Operations GmbH
InventorAndrew Bill
Life of this patent
Estimating the term…
Abstract
An aircraft landing gear arrangement (1, 101) on an aircraft, the arrangement including a wheel (2, 22), a brake (6) operable to inhibit rotation of the wheel, one or more fan blades (7a, 7b) rotatable to cool the brake, and a brushless DC motor (8) operable to rotate the one or more fan blades.
Claims18
An aircraft landing gear arrangement comprising:
- a wheel;
- a brake operable to inhibit rotation of said wheel;
- one or more fan blades rotatable to cool the brake;
- a brushless DC motor operable to rotate the one or more fan blades;
- a thermoelectric device configured to convert thermal energy from the brake into electrical energy and configured to provide the electrical energy to the brushless DC motor, and
- a cover mountable on the wheel, the cover defining a cover volume within which is the brushless DC motor;
- wherein the thermoelectric device is within the cover volume.
4 more elements
A method of cooling an aircraft landing gear brake, the method comprising:
- operating a brushless DC motor to power one or more aircraft brake cooling blades in a:
- first enhanced cooling mode in which the brushless DC motor draws electrical power from at least one of:
- (i) a thermoelectric device or photovoltaic material configured to convert thermal energy from the brake into electrical energy or (ii) a kinetic energy convertor, and
- second reduced cooling mode in which the brushless DC motor draws power from one or both of:
- (i) the thermoelectric device configured to convert thermal energy from the brake into electrical energy or (ii) the kinetic energy convertor.
2 more elements
An aircraft landing gear arrangement comprising:
- a wheel;
- a brake operable to inhibit rotation of said wheel;
- one or more fan blades rotatable to cool the brake;
- a brushless DC motor operable to rotate the one or more fan blades;
- a kinetic energy convertor configured to convert kinetic energy from the wheel into electrical energy, and
- a cover mountable on the wheel, the cover defining a cover volume within which is the brushless DC motor;
- wherein at least a portion of the kinetic energy convertor is within the cover volume.
4 more elements
Dependencies are inferred from the claim text.