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US 9,068,818 B2Granted
Drive mechanisms for variable diameter rotor systems
AssigneeSikorsky Aircraft Corporation
InventorsTodd David Walker, Bryan Kenneth Baskin
Life of this patent
Estimating the term…
Abstract
A rotor hub assembly includes a rotor hub for supporting a telescoping rotor blade having an outboard section; and a drive mechanism associated with the telescoping rotor blade, the drive mechanism including: a motor; a spool driven by the motor; and a strap wound on the spool, the strap coupled to the outboard section of the telescoping rotor blade.
Claims12
A rotor hub assembly comprising:
- a rotor hub for supporting a telescoping rotor blade having an outboard section;
- and
- a drive mechanism associated with the telescoping rotor blade, the drive mechanism including:
- a motor;
- a spool driven by the motor;
- and
- a strap wound on the spool, the strap coupled to the outboard section of the telescoping rotor blade;
- wherein the motor is operated as a pump when the outboard section of the telescoping rotor blade is extended away from the rotor hub.
5 more elements
A rotor hub assembly comprising:
- a rotor hub for supporting a telescoping rotor blade having an outboard section;
- and
- a drive mechanism associated with the telescoping rotor blade, the drive mechanism including:
- a motor;
- a spool driven by the motor;
- and
- a strap wound on the spool, the strap coupled to the outboard section of the telescoping rotor blade;
- wherein the motor includes two motors, the two motors geared to drive the spool.
5 more elements
A rotor hub assembly comprising:
- a rotor hub for supporting a telescoping rotor blade having an outboard section;
- and
- a drive mechanism associated with the telescoping rotor blade, the drive mechanism including:
- a motor;
- a spool driven by the motor;
- and
- a strap wound on the spool, the strap coupled to the outboard section of the telescoping rotor blade;
- a coupling assembly in the rotor hub for transferring power from a source in an airframe to the motor;
- a swivel fitting transmitting the power from the coupling assembly to the motor.
6 more elements
Dependencies are inferred from the claim text.