Facilitating high-degree flow turning of thrusted air

The flow turning control assembly with a pivotable flap addresses the detachment issue, allowing airflow to remain attached to rotating flaps, achieving high-degree flow turning and improved aircraft control.

WO2026147650A2PCT designated stage Publication Date: 2026-07-09WHISPER AERO INC
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Patent Information

Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
WHISPER AERO INC
Filing Date
2025-12-10
Publication Date
2026-07-09

AI Technical Summary

Technical Problem

Existing aircraft designs face challenges in achieving high-degree flow turning of thrusted air, particularly when rotating flaps, due to discontinuities that cause the airflow to detach from the wing surface, limiting the ability to turn the airflow beyond 90 degrees.

Method used

A flow turning control assembly is employed, featuring a rotating flap with a pivotable flap that deploys during rotation to provide a continuous surface for the airflow to adhere to, ensuring smooth transition and attachment to the rotating flap, thereby facilitating high-degree flow turning up to 180 degrees.

Benefits of technology

The solution ensures that the airflow remains attached to the rotating flap, enabling effective thrust vectoring and high-degree flow turning without gaps, enhancing aircraft maneuverability and control.

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Abstract

Aspects described herein relate to flow turning across an aircraft wing. An aircraft may include propulsors configured to propel an airflow across the upper surface of the aircraft wing. Due to the Coandă effect, the airflow may adhere to the upper surface of the aircraft wing. A movable flap may be attached to a trailing edge of the aircraft wing. The flap may be configured to rotate between retracted and rotated positions. The flap may be configured to rotate up to and beyond 90 degrees. During rotation, another flap may pivot to a deployed position to provide a continuous surface between a trailing edge of the aircraft wing and a leading edge of the moveable flap for the airflow to adhere to, which facilitates turning the flow of air across the aircraft wing.
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