Unmanned aerial vehicle with center mounted fuselage and closed wing

Patent metadata

Field	Value
Publication number	US-9815552-B1
Application number	US-201514860377-A
Country	US
Kind code	B1
Filing date	Sep 21, 2015
Priority date	Sep 21, 2015
Publication date	Nov 14, 2017
Grant date	Nov 14, 2017

Abstract

This disclosure describes a configuration of an unmanned aerial vehicle (“UAV”) in which the fuselage of the UAV is center mounted and at least some of the motors are configured to encompass at least a portion of the fuselage. In such a configuration, the stator and rotor of the motor extend around a perimeter of the fuselage, the propellers are coupled to an outer perimeter of the rotor, and the propellers extend radially outward away from the fuselage. Likewise, a closed wing may be coupled to the fuselage and positioned to encompass the radially extending propellers and at least a portion of the fuselage.

First claim

What is claimed is:

1. An unmanned aerial vehicle (UAV), comprising:
a fuselage having a substantially cylindrical shape with a first radius and a first height;
a UAV control system to control flight of the UAV, wherein the UAV control system is encompassed within the fuselage;
a motor in communication with the UAV control system and configured to receive instructions from the UAV control system, the motor including:
a substantially cylindrical stator coupled to the fuselage and having a second radius that is approximately equal to the first radius; and
a substantially cylindrical rotor surrounding the substantially cylindrical stator;

a first plurality of propellers coupled to the substantially cylindrical rotor;
a plurality of bearings coupled to the fuselage adjacent the substantially cylindrical rotor, the plurality of bearings distributed around a portion of the fuselage;
a substantially cylindrical propeller ring axially adjacent the substantially cylindrical rotor and rotatably coupled to the plurality of bearings;
a second plurality of propellers coupled to the substantially cylindrical propeller ring;
a gear assembly positioned between the substantially cylindrical rotor and the substantially cylindrical propeller ring, the gear assembly configured to at least:
engage the substantially cylindrical rotor when the substantially cylindrical rotor is rotating in a first direction; and
engage the substantially cylindrical propeller ring and cause the substantially cylindrical propeller ring to rotate in a second direction that is opposite the first direction when the substantially cylindrical rotor is rotating in the first direction; and

a closed wing having a substantially cylindrical shape with a third radius that is greater than the first radius, the closed wing coupled to the fuselage and surrounding the first plurality of propellers and the second plurality of propellers.

2. The UAV of claim 1 , wherein the closed wing has a second height that is less than the first height.

3. The UAV of claim 1 , further comprising:
a power supply disposed within the fuselage and configured to power the motor and the UAV control system.

4. The UAV of claim 1 , further comprising:
a second motor in communication with the UAV control system and configured to receive instructions from the UAV control system, the motor including:
a second substantially cylindrical stator coupled to the fuselage and having a fourth radius that is approximately equal to the first radius; and
a second substantially cylindrical rotor surrounding the second substantially cylindrical stator;
a third plurality of propellers coupled to the second substantially cylindrical rotor;
a second plurality of bearings coupled to the fuselage adjacent the second substantially cylindrical rotor, the second plurality of bearings distributed around a second portion of the fuselage;
a second substantially cylindrical propeller ring axially adjacent the second substantially cylindrical rotor and rotatably coupled to the second plurality of bearings;
a fourth plurality of propellers coupled to the second substantially cylindrical propeller ring;
a second gear assembly positioned between the second substantially cylindrical rotor and the second substantially cylindrical propeller ring, the second gear assembly configured to at least:
engage the second substantially cylindrical rotor when the substantially cylindrical rotor is rotating in a third direction; and
engage the second substantially cylindrical propeller ring and cause the substantially cylindrical propeller ring to rotate in a fourth direction that is opposite the third direction when the substantially cylindrical rotor is rotating in the third direction.

5. The UAV of claim 1 , further comprising:
a canard wing coupled to the fuselage.

6. An unmanned aerial vehicle (“UAV”), comprising:
a fuselage;
a UAV control system to control flight of the UAV, wherein the UAV control system is encompassed within the fuselage;
a motor in communication with the UAV control system and configured to receive instructions from the UAV control system, the motor including:
a stator coupled to an outer profile of the fuselage; and
a rotor;

a first plurality of propellers coupled to the rotor and configured to rotate in a first direction with a rotation of the rotor;
a second plurality of propellers configured to rotate in a second direction that is opposite the first direction;
a gear assembly positioned between the rotor and the second plurality of propellers, the gear assembly configured to at least:
engage the rotor when the rotor is rotating in the first direction; and
engage the second plurality of propellers and cause the second plurality of propellers to rotate in the second direction when the rotor is rotating in the first direction;
and

a closed wing coupled to the fuselage, the closed wing having a substantially cylindrical shape and surrounding the first plurality of propellers and the second plurality of propellers.

7. The UAV of claim 6 , further comprising:
a second motor in communication with the UAV control system and configured to receive instructions from the UAV control system, the second motor including:
a second stator coupled to the outer profile of the fuselage; and
a second rotor; and

wherein the second plurality of propellers are coupled to the second rotor.

8. The UAV of claim 6 , further comprising:
a noise dampener substantially surrounding the motor.

9. The UAV of claim 6 , wherein the rotor rotates around the fuselage.

10. The UAV of claim 6 , further comprising:
a plurality of landing supports extending from the closed wing and configured to support the UAV when landed on a surface.

11. The UAV of claim 10 , further comprising:
wherein at least one of the plurality of landing supports includes a compression component configured to compress when the UAV lands.

12. The UAV of claim 6 , further comprising:
a payload engagement mechanism positioned within the fuselage and configured to retain a payload within the fuselage.

13. The UAV of claim 6 , wherein the fuselage includes a fuselage access door positionable between a closed position and an open position, wherein access to a cavity within the fuselage is enabled when the fuselage access door is in the open position.

14. The UAV of claim 13 , wherein at least one of a payload or a power supply may be added to or removed from the cavity of the fuselage when the fuselage access door is in the open position.

15. An aerial vehicle, comprising:
a fuselage having a first radius;
a control system positioned within the fuselage;
a motor in communication with the control system, wherein the motor includes:
a substantially cylindrical stator coupled to the fuselage and having a second radius that is approximately equal to the first radius; and
a rotor;

a first plurality of propellers coupled to the rotor, wherein the first plurality of propellers are configured to at least rotate in a first direction;
a second plurality of propellers coupled to the rotor, wherein the second plurality of propellers are configured to at least rotate in a second direction around the fuselage, wherein the second direction is opposite the first direction;
a gear assembly positioned between a rotor and the second plurality of propellers, the gear assembly configured to at least:
engage the rotor when the rotor is rotating in the first direction; and
engage the second plurality of propellers and cause the second plurality of propellers to rotate in the second direction when the rotor is rotat

Assignees

• Amazon Tech Inc

Inventors

• Welsh Ricky Dean

Classifications

• B64C39/062

  having annular wings · CPC title

• B64C29/02

  having its flight directional axis vertical when grounded · CPC title

• B64C39/12 Primary

  Canard-type aircraft · CPC title

• B64C27/26

  characterised by provision of fixed wings · CPC title

• B64C27/10

  arranged coaxially · CPC title