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US 11,597,506 B2Granted
Rotor head for aerial vehicle
AssigneeFt Holdings Inc.
InventorsJason Peter Clarke, Daniel John Clarke
Life of this patent
Estimating the term…
Abstract
A rotor system for aerial vehicles where two or more rotor systems are used in a coaxial or tandem arrangement on the aerial vehicle.
Claims12
A rotor system for an aerial vehicle, comprising:
- a) a motor mount configured for attaching to the aerial vehicle;
- b) a motor stator operatively coupled to the motor mount;
- c) a motor rotor rotatably disposed within the motor stator;
- d) a spine shaft operatively coupled to the motor mount;
- e) a rotor hub operatively coupled to the mount rotor;
- f) at least two rotor blades rotatably coupled to the rotor hub, the at least two rotor blades disposed in a spaced-apart configuration about a circumference of the rotor hub, the at least two rotor blades operatively coupled to the rotor hub via a blade grip, the blade grip rotatably coupled to a feathering shaft extending from the rotor hub, the feathering shaft rotatably attached to the rotor hub via a flapping pin;
- g) a flapping damper disposed between the feathering shaft and the rotor hub thereby dampening flapping movement of the feathering shaft about the flapping pin;
- h) at least one pitch servo motor disposed near one end of the spine shaft, the at least one pitch servo motor comprising a servo arm;
- and
- i) swashplate mechanism operatively coupling the at least one pitch servo motor to the blade grip, wherein operation of the swashplate mechanism adjusts a pitch angle of the at least two rotor blades.
7 more elements
An aerial vehicle comprising at least two rotor systems, wherein each of the at least two rotor systems comprises:
- a) a motor mount configured for attaching to the aerial vehicle;
- b) a motor stator operatively coupled to the motor mount;
- c) a motor rotor rotatably disposed within the motor stator;
- d) a spine shaft operatively coupled to the motor mount;
- e) a rotor hub operatively coupled to the motor rotor;
- f) at least two rotor blades rotatably coupled to the rotor hub, the at least two rotor blades disposed in a spaced-apart configuration about a circumference of the rotor hub, the at least two rotor blades operatively coupled to the rotor hub via a blade grip, the blade grip rotatably coupled to a feathering shaft extending from the rotor hub, the feathering shaft rotatably attached to the rotor hub via a flapping pin;
- g) a flapping damper disposed between the feathering shaft and the rotor hub thereby dampening flapping movement of the feathering shaft about the flapping pin;
- h) at least one pitch servo motor disposed near one end of the spine shaft, the at least one pitch servo motor comprising a servo arm;
- and
- i) a swashplate mechanism operatively coupling the at least one pitch servo motor to the blade grip, wherein operation of the swashplate mechanism adjusts a pitch angle of the at least two rotor blades.
7 more elements
A method for manufacturing an aerial vehicle, comprising:
- mounting at least one rotor system on the aerial vehicle, wherein each of the at least one rotor system comprises:
- a) a motor mount configured for attaching to the aerial vehicle;
- b) a motor stator operatively coupled to the motor mount;
- c) a motor rotor rotatably disposed within the motor stator;
- d) a spine shaft operatively coupled to the motor mount;
- e) a rotor hub operatively coupled to the motor rotor;
- f) at least two rotor blades rotatably coupled to the rotor hub, the at least two rotor blades disposed in a spaced-apart configuration about a circumference of the rotor hub, the at least two rotor blades operatively coupled to the rotor hub via a blade grip, the blade grip rotatably coupled to a feathering shaft extending from the rotor hub, the feathering shaft rotatably attached to the rotor hub via a flapping pin;
- g) a flapping damper disposed between the feathering shaft and the rotor hub thereby dampening flapping movement of the feathering shaft about the flapping pin;
- h) at least one pitch servo motor disposed near one end of the spine shaft, the at least one pitch servo motor comprising a servo arm;
- and
- i) a swashplate mechanism operatively coupling the at least one pitch servo motor to the blade grip, wherein operation of the swashplate mechanism adjusts a pitch angle of the at least two rotor blades.
8 more elements
Dependencies are inferred from the claim text.