[미국특허]
Vertical take-off and landing vehicle with increased cruise efficiency
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B64D-027/24
B64D-027/26
B64C-029/00
B64C-003/40
B64C-009/14
B64C-011/50
B64C-025/32
B64C-003/38
B64C-039/02
B64D-027/02
출원번호
US-0121001
(2014-08-13)
등록번호
US-9475579
(2016-10-25)
발명자
/ 주소
Fredericks, William J.
Moore, Mark D.
Busan, Ronald C.
Rothhaar, Paul M.
North, David D.
Langford, William M.
Laws, Christopher T.
Hodges, William T.
Johns, Zachary R.
Webb, Sandy R.
출원인 / 주소
The United States of America as represented by the Administrator of the National Aeronautics and Space Administration
대리인 / 주소
Warmbier, Andrea Z.
인용정보
피인용 횟수 :
8인용 특허 :
10
초록▼
Systems, methods, and devices are provided that combine an advance vehicle configuration, such as an advanced aircraft configuration, with the infusion of electric propulsion, thereby enabling a four times increase in range and endurance while maintaining a full vertical takeoff and landing (“VTOL”)
Systems, methods, and devices are provided that combine an advance vehicle configuration, such as an advanced aircraft configuration, with the infusion of electric propulsion, thereby enabling a four times increase in range and endurance while maintaining a full vertical takeoff and landing (“VTOL”) and hover capability for the vehicle. Embodiments may provide vehicles with both VTOL and cruise efficient capabilities without the use of ground infrastructure. An embodiment vehicle may comprise a wing configured to tilt through a range of motion, a first series of electric motors coupled to the wing and each configured to drive an associated wing propeller, a tail configured to tilt through the range of motion, a second series of electric motors coupled to the tail and each configured to drive an associated tail propeller, and an electric propulsion system connected to the first series of electric motors and the second series of electric motors.
대표청구항▼
1. A vehicle, comprising: a wing configured to tilt through a range of motion;a first series of electric motors coupled to the wing and each configured to drive an associated wing propeller;a tail configured to tilt through the range of motion;a second series of electric motors coupled to the tail a
1. A vehicle, comprising: a wing configured to tilt through a range of motion;a first series of electric motors coupled to the wing and each configured to drive an associated wing propeller;a tail configured to tilt through the range of motion;a second series of electric motors coupled to the tail and each configured to drive an associated tail propeller; andan electric propulsion system connected to the first series of electric motors and the second series of electric motors,wherein the first series of electric motors comprises eight electric motors and the second series of electric motors comprises two electric motors,wherein the associated wing propellers of two of the electric motors of the first series of electric motors are variable pitch propellers each located at a wing tip of the wing, andwherein the associated wing propellers of the remaining six of the electric motors of the first series of electric motors are fixed pitch propellers. 2. The vehicle of claim 1, wherein the associated tail propellers of the second series of electric motors are variable pitch propellers. 3. The vehicle of claim 2, wherein the associated wing propellers of the remaining six of the electric motors of the first series of electric motors and the associated tail propellers of the second series of electric motors are configured to fold back during a wing born flight phase. 4. The vehicle of claim 1, wherein the wing and the tail are arranged in a semi-tandem configuration. 5. The vehicle of claim 1, further comprising reflexed flaperons on the wing and tail. 6. The vehicle of claim 1, wherein the motors are mounted on motor pylons which are shaped to reduce drag at high lift coefficients. 7. The vehicle of claim 6, wherein each motor pylon has a cross sectional area that is comparatively less in a middle portion than in a forward section or an aft section. 8. The vehicle of claim 1, wherein the vehicle is an unmanned aerial vehicle. 9. The vehicle of claim 1, further comprising retractable landing skids and wherein the tail is configured to act as a rear landing skid. 10. A vehicle, comprising: a wing configured to tilt through a range of motion;a first series of electric motors coupled to the wing and each configured to drive an associated wing propeller;a tail configured to tilt through the range of motion;a second series of electric motors coupled to the tail and each configured to drive an associated tail propeller; andan electric propulsion system connected to the first series of electric motors and the second series of electric motors,wherein the first series of electric motors comprises at least three electric motors,wherein the associated wing propellers of at least two of the electric motors of the first series of electric motors are variable pitch propellers each located at a wing tip of the wing, andwherein the associated wing propeller of at least one of the electric motors of the first series of electric motors is a fixed pitch propeller. 11. The vehicle of claim 10, wherein the associated tail propellers of the second series of electric motors are variable pitch propellers. 12. The vehicle of claim 10, wherein the wing and the tail are arranged in a semi-tandem configuration. 13. The vehicle of claim 10, further comprising reflexed flaperons on the wing and tail. 14. The vehicle of claim 10, wherein the motors are mounted on motor pylons which are shaped to reduce drag at high lift coefficients. 15. The vehicle of claim 14, wherein each motor pylon has a cross sectional area that is comparatively less in a middle portion than in a forward section or an aft section. 16. The vehicle of claim 10, wherein the vehicle is an unmanned aerial vehicle.
Bevirt, Joeben; Gibboney, Jeffrey K.; Craig, David D.; Peddie, Matthew, Lightweight vertical take-off and landing aircraft and flight control paradigm using thrust differentials.
Vondrell, Randy M.; Polakowski, Matthew Ryan; Murrow, Kurt David; Crabtree, Glenn; Zatorski, Darek Tomasz, Tiltrotor propulsion system for an aircraft.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.