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US 2023/0406490 A1Published application
Rotor lock and rotor alignment mechanisms and related method
AssigneeGadfin Ltd.
InventorsRobert ROACH, Eyal REGEV
Life of this patent
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Abstract
A rotor lock mechanism is disclosed. The mechanism includes a pair of arms at a chosen offset angle # with respect to a long axis of a pair of rotor blades; an arm engagement device configured to restrain rotary motion of the arms; and a rotor drive shaft to which the pair of arms and the pair of rotor blades are attached. A method of use is also disclosed.
Claims9
A rotor lock mechanism comprising:
- (a) a pair of arms at a chosen offset angle θ with respect to a long axis of a pair of rotor blades;
- (b) an arm engagement device configured to restrain rotary motion of said arms;
- and
- (c) a rotor drive shaft to which said pair of arms and said pair of rotor blades are attached.
1 more element
An alignment control mechanism comprising:
- a rotating rotor hub marked with one or more markers;
- a fixed position sensor configured to provide output signal indicating presence (1) or absence (0) of said marker;
- and
- an electronic controller configured to respond to output signal (0) by pulsing a motor powering said rotor hub.
1 more element
A method comprising:
- (a) Independently determining a desired stowing angle with respect to travel direction for each rotor in a multi-rotor aircraft;
- and
- (b) stopping and locking each rotor at said desired stowing angle.
Dependencies are inferred from the claim text.