System, assemblies and methods for mechanical-thrust power conversion multifans
AssigneeN.M.B. Medical Applications Ltd
InventorsOren Globerman, Mordechay Beyar
Life of this patent
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Abstract
A multi-rotor system for providing air thrust is disclosed comprising at least one multi-rotor assembly. The multi-rotor assembly comprising at least two rotors rotatable about a common axis wherein the outer radius of a first rotor is substantially similar to the inner radius of the second rotor. An airborne vehicle is also disclosed that is adapted to perform vertical takeoff and landing (VTOL). The airborne vehicle comprising at least two multi-rotor system disposed substantially symmetrically around the center of gravity of the vehicle.
Claims12
A multi-rotor system comprising:
- at least three rotors rotatable about a common axis,
- wherein the outer radius of the first rotor is substantially similar to the inner radius of the second rotor, and
- the outer radius of the second rotor is substantially similar to the inner radius of the third rotor;
- and wherein an air flow passing through one rotor of the at least three rotors does not pass through other rotors of the multi-rotor system;
- and
- wherein the tip speed of all rotors is substantially the same.
A multi-rotor system comprising:
- at least three rotors rotatable about a common axis,
- wherein the outer radius of the first rotor is substantially similar to the inner radius of the second rotor, and
- the outer radius of the second rotor is substantially similar to the inner radius of the third rotor;
- and wherein an air flow passing through one rotor of the at least three rotors does not pass through other rotors of the multi-rotor system;
- and
- at least one duct.
A multi-rotor system comprising:
- at least three rotors rotatable about a common axis,
- wherein the outer radius of the first rotor is substantially similar to the inner radius of the second rotor, and
- the outer radius of the second rotor is substantially similar to the inner radius of the third rotor;
- and wherein an air flow passing through one rotor of the at least three rotors does not pass through other rotors of the multi-rotor system;
- and
- wherein a duct is disposed around each of the at least three rotors.
A multi-rotor system comprising:
- at least three rotors rotatable about a common axis,
- wherein the outer radius of the first rotor is substantially similar to the inner radius of the second rotor, and
- the outer radius of the second rotor is substantially similar to the inner radius of the third rotor;
- and wherein an air flow passing through one rotor of the at least three rotors does not pass through other rotors of the multi-rotor system;
- and
- at least one flow stator to align the flow of air.
A multi-rotor system comprising:
- at least three rotors rotatable about a common axis,
- wherein the outer radius of the first rotor is substantially similar to the inner radius of the second rotor, and
- the outer radius of the second rotor is substantially similar to the inner radius of the third rotor;
- and wherein an air flow passing through one rotor of the at least three rotors does not pass through other rotors of the multi-rotor system;
- and
- at least one flow deflection shutter.
A multi-rotor system comprising:
- at least three rotors rotatable about a common axis,
- wherein the outer radius of the first rotor is substantially similar to the inner radius of the second rotor, and
- the outer radius of the second rotor is substantially similar to the inner radius of the third rotor;
- and wherein an air flow passing through one rotor of the at least three rotors does not pass through other rotors of the multi-rotor system;
- and
- wherein all the rotors rotate in the same rotational direction.
A multi-rotor system comprising:
- a first rotor and a second rotor rotatable about a common axis;
- wherein an outer radius of the first rotor is substantially similar to an inner radius of the second rotor;
- wherein rotor blade tips of the first rotor and the second rotor are rotatable at substantially the same tangential speed;
- and
- wherein the first rotor and the second rotor are rotatable in the same direction.
Dependencies are inferred from the claim text.