Electrical powered tail rotor of a helicopter
AssigneeAirbus Helicopters Deutschland GmbH
InventorsAndree Altmikus, Manuel Kessler
Life of this patent
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Abstract
The invention is related to an electrical powered tail rotor (1) of a helicopter comprising a housing (2) around the tail rotor (1), and at least one permanent magnet energized synchronous motor with a stator (6, 7) with an increased number of poles (9). Said at least one synchronous motor is integrated as a torus (8) around an opening of the housing (2) encompassing the tail rotor (1). Blades (4) of the tail rotor (1) are fixed to at least one rotating component (10, 11) of said at least one synchronous motor. Supply means provide for electric energy to said at least one synchronous motor. Blade pitch control means are provided at the torus (8).
Claims15
An electrical powered tail rotor assembly of a helicopter comprising:
- a tail rotor having multiple blades;
- a housing around the tail rotor;
- two coaxial permanent magnet synchronous motors that are each provided with a stator and a rotatable component that is coaxial with respect to the stator, each stator including multiple poles, the synchronous motors being integrated as a torus around an opening of the housing encompassing the tail rotor;
- supply means for supplying electric energy to the synchronous motors;
- and
- blade pitch control means provided at the torus, the blade pitch control means including a gear that is mounted between the rotatable components of the synchronous motors and that links the blades of the tail rotor to each of the rotatable components.
An electric powered tail rotor assembly for a helicopter, the tail rotor assembly comprising:
- a tail rotor having multiple blades;
- an electric motor assembly including two coaxial synchronous motors, each synchronous motor having a stator and a rotatable component that is coaxial with respect to the stator, each stator being provided with a plurality of poles;
- and
- blade pitch control means associated with the electric motor assembly for altering pitch of the blades of the tail rotor, the blade pitch control means including a gear that is mounted between the rotatable components of the synchronous motors and that links the blades of the tail rotor to each of the rotatable components.
Dependencies are inferred from the claim text.