Attitude adjusting hydrofoil and cross-medium aircraft

By designing an attitude-adjustable hydrofoil, utilizing a crossbar hydrofoil, a braced hydrofoil, and a retractable support structure, the stability and safety issues of traditional hydrofoils in complex water environments are solved, thereby improving the attitude stability and safety of the aircraft during takeoff and landing.

CN122211516APending Publication Date: 2026-06-16PEKING UNIV +1
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Patent Information

Application Number
CN202610400549.2
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2026-03-30
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Traditional hydrofoil designs struggle to adapt to dynamic changes in complex aquatic environments, resulting in poor stability, safety, and reliability during takeoff and landing. In particular, there are issues with the lack of multi-degree-of-freedom coordinated control and limitations in material adaptability during water surface taxiing and cross-medium transition phases.

Method used

The attitude-adjustable hydrofoil, including a crossbar hydrofoil, a braced hydrofoil, and a retractable support structure, is used in conjunction with a servo motor and elastic buffer to dynamically adjust the hydrofoil's angle of attack and lift output, forming a stable triangular support configuration that adapts to changes in speed and wave conditions in real time and reduces landing impact loads.

Benefits of technology

It improves the stability and safety of the vehicle in complex water environments, reduces attitude oscillations and impact loads, and enhances maneuverability and equipment lifespan.

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Abstract

The invention discloses a posture adjusting hydrofoil and a cross-medium aircraft, the posture adjusting hydrofoil comprises a cross rod hydrofoil, an inclined strut hydrofoil and a telescopic supporting structure, the cross rod hydrofoil extends in a first direction, and one end, in the first direction, of the cross rod hydrofoil is used for being connected with the cross-medium aircraft; the diagonal hydrofoil is rotatably connected with the other end of the cross rod hydrofoil in the first direction; the telescopic supporting structure is connected between the cross rod hydrofoil and the inclined strut hydrofoil, and one end of the telescopic supporting structure is slidably connected with the inclined strut hydrofoil; the telescopic supporting structure comprises a main body and a telescopic assembly, the telescopic assembly is movably arranged relative to the main body in the second direction, and the second direction intersects with the first direction; wherein the cross rod hydrofoil, the diagonal bracing hydrofoil and the telescopic supporting structure form a triangular supporting structure. The stability, safety and reliability of the cross-medium aircraft can be improved.
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