Weight-shift controlled personal hydrofoil watercraft
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B63B-001/24
B63B-035/79
B63H-021/17
B63H-021/21
B63H-005/14
B63H-011/04
B63H-001/16
출원번호
US-0509289
(2014-10-08)
등록번호
US-9278729
(2016-03-08)
발명자
/ 주소
Langelaan, Jacob Willem
출원인 / 주소
Langelaan, Jacob Willem
대리인 / 주소
Dinsmore & Shohl LLP
인용정보
피인용 횟수 :
0인용 특허 :
16
초록▼
A passively stable personal hydrofoil watercraft that has a flotation device, wherein a user can ride in a prone, kneeling, or standing position. The watercraft includes a strut having an upper end interconnected with the flotation device and lower end connected with a hydrofoil. The hydrofoil great
A passively stable personal hydrofoil watercraft that has a flotation device, wherein a user can ride in a prone, kneeling, or standing position. The watercraft includes a strut having an upper end interconnected with the flotation device and lower end connected with a hydrofoil. The hydrofoil greatly reduces the power required to travel at higher speed. The watercraft also includes a propulsion system connected to the hydrofoil. Both longitudinal and directional control of the watercraft is via weight shift, eliminating the need of any movable surfaces. The flotation device, strut, and hydrofoil may be permanently interconnected or may be detachable.
대표청구항▼
1. A passively stable, weight-shift controlled personal hydrofoil watercraft, comprising: a flotation device that has a fore-aft length greater than a lateral width, the flotation device having a top surface and a bottom surface, wherein a user can be disposed on the top surface of the flotation dev
1. A passively stable, weight-shift controlled personal hydrofoil watercraft, comprising: a flotation device that has a fore-aft length greater than a lateral width, the flotation device having a top surface and a bottom surface, wherein a user can be disposed on the top surface of the flotation device in a prone, kneeling, or standing position, the floatation device having a forward section, a middle section, and a rear section, and the flotation device being controlled via weight shift of the user;a strut having an upper end and a lower end, the upper end fixedly interconnected with the flotation device between the middle section and the rear section of the flotation device;a hydrofoil fixedly interconnected with the lower end of the strut, the hydrofoil having no movable surface and designed to provide passive static stability controlled solely by weight shift of the user;a propulsion system for propelling the watercraft in a body of water, wherein the propulsion system is connected to the hydrofoil; andthe watercraft having no movable steering system. 2. A watercraft in accordance with claim 1, wherein the propulsion system comprises a battery, an electric motor, a motor speed controller, and a propulsor, the propulsor selected from a propeller, a ducted propeller, or a pump-jet. 3. A watercraft in accordance with claim 2, wherein the propulsor is disposed below the hydrofoil. 4. A watercraft in accordance with claim 1, wherein the propulsion system is integrated in the hydrofoil and has an inlet near a leading end of the hydrofoil and an outlet near a trailing edge of the hydrofoil. 5. A watercraft in accordance with claim 1, further comprising a fixed vertical tail connected to the hydrofoil. 6. A watercraft in accordance with claim 1, further comprising a fixed horizontal tail connected to the hydrofoil. 7. A watercraft in accordance with claim 1, further comprising a canard that extends forwardly of the hydrofoil, wherein the canard is fixedly connected with the hydrofoil. 8. A watercraft in accordance with claim 1, further comprising a tail that extends rear of the hydrofoil, wherein the tail is fixedly connected with the hydrofoil. 9. A watercraft in accordance with claim 1, wherein the hydrofoil is a generally flat wing having a curved front edge. 10. A watercraft in accordance with claim 1, wherein the hydrofoil includes winglets. 11. A watercraft in accordance with claim 1, further comprising a secondary hydrofoil that extends forwardly of the hydrofoil, wherein the secondary hydrofoil is fixedly connected with the hydrofoil. 12. A watercraft in accordance with claim 1, further comprising a secondary hydrofoil that extends rear of the hydrofoil, wherein the secondary hydrofoil is fixedly connected with the hydrofoil. 13. A watercraft in accordance with claim 1, wherein the design for providing the passive static stability is achieved through a combination of airfoil design, planform design and tailoring of span-wise twist distribution. 14. A watercraft in accordance with claim 1, wherein the hydrofoil is wing shaped with a front edge and a rear edge that both curve rearwardly.
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