COAXIAL ALIGNED ELECTRIC MOTOR GROUP FOR PROPELLING AN UNMANNED AERIAL SYSTEM

• US 20180044029A1
• Filed: 08/10/2016
• Published: 02/15/2018
• Est. Priority Date: 08/10/2016
• Status: Abandoned Application

• Current Assignee: Patrick C. Koegler
• Original Assignee: Patrick C. Koegler
• Inventors: Koegler, Patrick C., Koegler, Leslie J.
• Application Number:
  US15/233,507
• Publication Number:
  US 20180044029A1
• Time in Patent Office: Days
• CPC Class Codes: B64C 11/48 Units of two or more coaxial propellers
• CPC Class Codes: B64C 27/10 arranged coaxially
• CPC Class Codes: B64C 27/14 Direct drive between power plant and rotor hub
• CPC Class Codes: B64C 39/024 of the remote controlled vehicle type, i.e. RPV
• CPC Class Codes: B64D 27/24 using steam or spring force jet aircraft B64D27/16
• CPC Class Codes: B64F 5/10 Manufacturing or assembling aircraft, e.g. jigs therefor
• CPC Class Codes: B64U 10/13 Flying platforms
• CPC Class Codes: B64U 30/20 Rotors; Rotor supports
• CPC Class Codes: B64U 50/19 using electrically powered motors
• CPC Class Codes: H02K 7/14 Structural association with mechanical loads, e.g. with hand-held machine tools or fans with fan or impeller for cooling the machine H02K9/06
• CPC Class Codes: Y02T 50/40 Weight reduction
• CPC Class Codes: Y02T 50/60 Efficient propulsion technologies, e.g. for aircraft

Abstract

A coaxial, aligned electric motor group for propelling an unmanned aerial system. The electric motor group includes a first electric motor having a first rotor and a first stator, the first rotor including as a portion thereof or supporting as an attachment thereto an axially elongate first power output shaft, and a second electric motor having a second rotor and a hollow second stator. The first power output shaft extends coaxially through the hollow second stator, and the second rotor includes as a portion thereof, or supporting as an attachment thereto, an axially elongate second power output shaft.

Claims

1. A coaxial, aligned electric motor group, comprising:

a first electric motor having a first rotor and a first stator, the first rotor including as a portion thereof or supporting as an attachment thereto an axially elongate first power output shaft; and

a second electric motor having a second rotor and a hollow second stator, the first power output shaft extending coaxially through the hollow second stator, the second rotor including as a portion thereof or supporting as an attachment thereto an axially elongate second power output shaft.

2. The electric motor group of claim 1, further adapted for use in powering a UAS by including one or more first propellers attached to the first power output shaft at a first end thereof, and one or more second propellers attached to the second power output shaft at a second end thereof, wherein the first and second ends are axially disposed on the same side of the first and second stators.

3. The electric motor group of claim 2, operatively provided in the UAS having an airframe, wherein the propellers are disposed above the airframe.

4. The electric motor group of claim 3, operatively provided in the UAS along with at least one additional instance thereof.

5. The electric motor group of claim 3, operatively provided in the UAS along with at least three additional instances thereof.

6. The electric motor group of claim 5, wherein the first and second electric motors are brushless.

7. The electric motor group of claim 4, wherein the first and second electric motors are brushless.

8. The electric motor group of claim 3, wherein the first and second electric motors are brushless.

9. The electric motor group of claim 2, wherein the first and second electric motors are brushless.

10. The electric motor group of claim 1, wherein the first and second electric motors are brushless.

11. The electric motor group of claim 10, wherein the first and second electric motors have outrunner architecture.

12. The electric motor group of claim 9, wherein the first and second electric motors have outrunner architecture.

13. The electric motor group of claim 8, wherein the first and second electric motors have outrunner architecture.

14. The electric motor group of claim 7, wherein the first and second electric motors have outrunner architecture.

15. The electric motor group of claim 6, wherein the first and second electric motors have outrunner architecture.

16. The electric motor group of claim 15, wherein the unmanned aerial system carries an imaging device disposed below the propellers.

17. The electric motor group of claim 14, wherein the unmanned aerial system carries an imaging device disposed below the propellers.

18. The electric motor group of claim 13, wherein the unmanned aerial system carries an imaging device disposed below the propellers.

19. The electric motor group of claim 8, wherein the unmanned aerial system carries an imaging device disposed below the propellers.

20. The electric motor group of claim 7, wherein the unmanned aerial system carries an imaging device disposed below the propellers.

21. The electric motor group of claim 6, wherein the unmanned aerial system carries an imaging device disposed below the propellers.

22. The electric motor group of claim 5, wherein the unmanned aerial system carries an imaging device disposed below the propellers.

23. The electric motor group of claim 4, wherein the unmanned aerial system carries an imaging device disposed below the propellers.

24. The electric motor group of claim 3, wherein the unmanned aerial system carries an imaging device disposed below the propellers.