High-lift apparatus for propeller driven aircraft
Auxiliary wings and pylons intercept and deswirl the slipstream core to convert wasted kinetic energy into additional lift and thrust, addressing inefficiencies in propeller-driven aircraft propulsion and enhancing flight performance.
WO2026177894A1 Publication Date: 2026-08-27ERLSTON LESTER JOHN
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Patent Information
- Application Number
- PCT/US2026/014357
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2026-02-02
- Filing Date
- 2026-02-06
- Publication Date
- 2026-08-27
AI Technical Summary
Technical Problem
A substantial proportion of the slipstream core energy generated by propeller-driven aircraft is wasted, as only a central horizontal portion interacts with the fixed-wing to generate lift, leading to inefficiencies in propulsion and lift generation.
Method used
The integration of auxiliary wings braced by structural struts (pylons) to the propulsion assembly, which intercept and deswirl the slipstream core to convert its kinetic energy into additional lift and thrust, enhancing the propulsion system's efficiency.
Benefits of technology
This design increases flight range, payload capacity, and fuel efficiency by reclaiming unused slipstream energy, reducing operational costs, and improving transition times between flight modes.
✦ Generated by Eureka AI based on patent content.
Abstract
An aerodynamic system for lift augmentation and thrust recovery in propeller-driven aircraft. The system includes at least one auxiliary wing positioned within a slipstream of a propeller and coupled to a propulsion assembly via at least one structural pylon. The auxiliary wing is configured to generate supplemental lift from the high-velocity airflow of the slipstream, particularly during high-thrust operational phases. The structural pylon is configured as a flow-rectifying vane to deswirl a rotational component of the slipstream, thereby increasing net axial thrust. The system facilitates energy conservation and accelerates the transition between vertical and horizontal flight modes by utilizing recovered slipstream energy to augment fixed-wing lift generation.
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