In-flight reconfigurable hybrid unmanned aerial vehicle

• US 10,392,108 B1
• Filed: 12/23/2016
• Issued: 08/27/2019
• Est. Priority Date: 10/27/2014
• Status: Active Grant

• Current Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Original Assignee: Amazon Technologies, Inc. (Amazon.com, Inc.)
• Inventors: Erdozain, Jr., Jack, Ozturk, Berk, Roberts, Nicholas Hampel, Beckman, Brian C.
• Primary Examiner(s): Ellis, Christopher P
• Application Number:
  US15/390,273
• Time in Patent Office: 977 Days
• Field of Search: 244 7 B
• CPC Class Codes: B64C 1/30 Parts of fuselage relatively movable to reduce overall dimensions of aircraft
• CPC Class Codes: B64C 29/02 having its flight directional axis vertical when grounded
• CPC Class Codes: B64C 3/56 Folding or collapsing to reduce overall dimensions of aircraft
• CPC Class Codes: B64C 39/024 of the remote controlled vehicle type, i.e. RPV
• CPC Class Codes: B64U 10/20 Vertical take-off and landing [VTOL] aircraft flying platforms B64U10/13; helicopters B64U10/17
• CPC Class Codes: B64U 10/25 Fixed-wing aircraft VTOL aircraft B64U10/20
• CPC Class Codes: B64U 2101/60 for transporting passengers; for transporting goods other than weapons
• CPC Class Codes: B64U 2101/64 for parcel delivery or retrieval
• CPC Class Codes: B64U 30/12 Variable or detachable wings, e.g. wings with adjustable sweep
• CPC Class Codes: B64U 30/16 movable along the UAV body
• CPC Class Codes: B64U 30/20 Rotors; Rotor supports
• CPC Class Codes: B64U 30/295 Rotors arranged in the wings
• CPC Class Codes: B64U 50/14 ducted or shrouded
• CPC Class Codes: B64U 50/19 using electrically powered motors
• CPC Class Codes: B64U 60/50 with landing legs
• CPC Class Codes: B64U 70/00 Launching, take-off or landing arrangements
• CPC Class Codes: B64U 70/80 Vertical take-off or landing, e.g. using rockets rotorcrafts B64U10/10; VTOL aircraft B64U10/20
• CPC Class Codes: Y02T 50/10 Drag reduction

Abstract

This disclosure is directed to an unmanned aerial vehicle (“UAV”) that transitions in-flight between vertical flight configuration and horizontal flight configuration by changing an orientation of the UAV by approximately ninety degrees. The UAV may include propulsion units that are coupled to a fuselage or wing. The UAV may include a tail and/or a swing arm that is rotatably coupled to the fuselage and that rotate between different positions. The swing arm may be selectively coupled to cargo. The wing may include wing segments rotatably coupled together by pivots that rotate to position the propulsion units around a center of mass of the UAV when the fuselage is oriented perpendicular with the horizon.

Claims

1. An unmanned aerial vehicle (UAV) comprising:

a fuselage configured to support transport of cargo that is coupled to the fuselage or stored within the fuselage;

a plurality of propulsion units coupled directly or indirectly to the fuselage;

a main wing coupled to the fuselage;

a tail rotatably coupled to the fuselage, wherein the tail extends outward from the fuselage and along a longitudinal axis of the fuselage, wherein the tail is configured to rotate about a pivot between a first position and a second position, wherein the first position corresponds to an extended position used during horizontal flight and the second position corresponds to a stowed position used during vertical flight, and wherein the tail is in a substantially horizontal inward orientation in the second position;

a drive mechanism coupled to or stored within the fuselage, wherein the drive mechanism is configured to cause the tail to rotate about the pivot between the first position and the second position;

a power source coupled to or stored within the fuselage, wherein the power source is configured to provide power to at least the plurality of propulsion units and the drive mechanism; and

a control system coupled to or stored within the fuselage, wherein the control system is in communication with at least the plurality of propulsion units and the drive mechanism, and wherein the control system is configured to control at least operation of the plurality of propulsion units and operation of the drive mechanism.

2. The UAV of claim 1, wherein the tail comprises at least one of a horizontal stabilizer or a vertical stabilizer.

3. The UAV of claim 1, wherein the tail includes at least two booms that extend outward from the fuselage and along the longitudinal axis of the fuselage, and

wherein the at least two booms are spaced apart to define a gap configured to avoid interference between the tail and at least the fuselage of the UAV when the tail rotates between the first position and the second position.

4. The UAV of claim 1, wherein the main wing comprises:

a plurality of wing segments, wherein each wing segment spans between two different ones of the plurality of propulsion units;

coupling features, wherein each of the coupling features couples at least a portion of one of the plurality of propulsion units; and

a plurality of pivots, wherein each of the pivots is located between adjacent wing segments, and wherein each of the pivots is configured to modify a shape of the wing between a first wing configuration and a second wing configuration.

5. The UAV of claim 1, further comprising:

a swing arm having a first end rotatably coupled to the fuselage and a second end configured to selectively couple to cargo, wherein the swing arm is configured to transition the cargo between a first cargo position and a second cargo position.

6. An aerial vehicle comprising:

a fuselage;

a plurality of propulsion units coupled to the fuselage;

a tail rotatably coupled to the fuselage, the tail extending outward from the fuselage and including control surfaces for use during horizontal flight, the tail configured to rotate about a tail pivot to transition the tail between a first position and a second position, wherein the first position is an extended position used in a horizontal flight configuration and the second position is a stowed position used in a vertical flight configuration, and wherein the tail is in a substantially horizontal inward orientation in the second position; and

a drive mechanism coupled to the fuselage, wherein the drive mechanism is configured to selectively rotate the tail about the tail pivot.

7. The aerial vehicle of claim 6, further comprising:

a swing arm rotatably coupled to the fuselage, wherein the swing arm is configured to selectively couple to cargo, and

wherein the swing arm is configured to selectively rotate between a first cargo position and a second cargo position.

8. The aerial vehicle of claim 7, wherein the first cargo position is under the fuselage when the aerial vehicle is in the vertical flight configuration and

wherein the second cargo position is under the fuselage when the aerial vehicle is in the horizontal flight configuration.

9. The aerial vehicle of claim 6, wherein the tail comprises two booms extending outward from the fuselage,

wherein the two booms are spaced apart to define a gap configured to avoid interference between the tail and at least the fuselage during a rotation of the tail between the first position and the second position.

10. The aerial vehicle of claim 6, wherein the tail extends outward from the fuselage along a longitudinal axis of the fuselage.

11. The aerial vehicle of claim 6, wherein a fore end of the fuselage further comprises at least one imaging sensor.

12. The aerial vehicle of claim 6, wherein the drive mechanism comprises at least one of a servo, a linear actuator, and an electric motor.

13. The aerial vehicle of claim 6, further comprising:

a wing assembly comprising a plurality of wing segments, wherein each of the plurality of wing segments is connected to an adjacent wing segment through a respective pivot,

wherein each pivot defines a pivot axis between an intersection of the respective pivot with a leading edge and a trailing edge of the wing assembly,

wherein the plurality of wing segments are configured to rotate around the pivot axis during flight between a horizontal flight configuration and a vertical flight configuration, and

wherein at least one of the plurality of propulsion units is located proximate to and substantially parallel with at least one pivot axis.