Embedded Wing Ducted Fans for Lift and Drag Reduction
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Solution Overview
Problem
Conventional fixed-wing aircraft with combustion engines face inefficiencies in aerodynamics, weight, and structural design due to high temperature exhaust and air pollution, while retrofitting electric propulsion systems do not significantly improve lift or aerodynamics.
Innovation Solution
Integrating electric engines within the wing structure of aircraft, optimizing aerodynamics and structural efficiency by embedding propulsion systems within the wing, allowing for compact and efficient propulsion systems that reduce weight and enhance structural strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If combustion engines are hung from wings or carried by fuselage, then propulsion function is achieved, but aerodynamic performance deteriorates and weight increases
Solution Approach 1:
The patent merges the propulsion system with the wing structure by embedding engines within the wing itself rather than mounting them externally. This integration combines two separate systems (propulsion and lifting) into a unified structure, eliminating the need for separate engine mounts and reducing overall weight while improving aerodynamic flow over the wing surface.
Solution Approach 2:
The patent transitions from conventional three-dimensional engine mounting (hung below or behind the wing) to a two-dimensional integration within the wing's planform area. By embedding engines flush with the wing surface, the design utilizes the wing's internal volume and surface area more efficiently, reducing protrusions that disrupt airflow.
2Power
If combustion engines are used for propulsion, then thrust is generated, but high temperature exhaust limits placement options and creates harmful effects
Solution Approach 1:
The patent replaces combustion-based mechanical propulsion with electric motors that drive fans. This substitution eliminates the combustion process entirely, removing the source of high temperature exhaust gases. The electric motors generate thrust through electromagnetic fields rather than chemical combustion, fundamentally changing the propulsion mechanism to avoid thermal pollution.
Solution Approach 2:
The patent converts the harmful high temperature exhaust from combustion engines into a benefit by using electric motors that produce cool or ambient temperature airflow. The fans driven by electric motors move air without heating it, transforming the harmful thermal output into a benign or even beneficial cool airflow that can be used for aerodynamic cooling or simply discharged without environmental harm.
3Use of energy by moving object
If electric propulsion systems are retrofitted into conventional aircraft, then fuel consumption is reduced, but additional weight is added without substantial lift improvement
Solution Approach 1:
The patent combines the electric propulsion system with the wing structure, embedding motors and fans within the wing's internal volume. This integration eliminates the need for separate engine bays, mounting structures, and associated hardware that would add weight. The propulsion components share space with the wing's structural elements, reducing overall system weight compared to conventional retrofits.
4Power
If conventional combustion engines are used, then propulsion is achieved, but air and noise pollution are generated
Solution Approach 1:
The patent replaces the combustion-based mechanical system with an electric motor system. This substitution eliminates chemical combustion, thereby eliminating exhaust emissions and associated air pollution. The electric motors also operate silently compared to combustion engines, eliminating noise pollution from the propulsion system.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The embedded electric engines improve aerodynamic performance, reduce weight, and enhance structural efficiency, offering better lift and propulsion capabilities with reduced maintenance and noise pollution.
Implementation Method 1
a fan positioned in each duct of the plurality of ducts, wherein the fan is rotatable to propel air received in the inlet through the duct and to the outlet
Implementation Method 2
an electric motor operably connected to the fan to rotate the fan
Implementation Method 3
an upper wing portion having an upper leading edge, an upper trailing edge, and an upper exterior surface extending between the upper leading edge and the upper trailing edge, the upper exterior surface positioned to face exterior airflow above the wing
Data Source
AI summary
Aerodynamic lifting structures, such as aircraft wings, having embedded engines and associated methods and systems are disclosed herein. A wing assemblies configured in accordance with embodiments of the present technology can include, for example, an upper wing portion, a lower wing portion, and a plurality of independent ducts positioned between the upper wing portion and the lower wing portion. Each duct can extend between a corresponding inlet positioned toward a leading portion of the wing assembly and a corresponding outlet positioned toward a trailing portion of the wing assembly. The wing assembly can further include a plurality of fans and a plurality of electric motors operably coupled to the plurality of fans. The fans and electric motors are positioned in the corresponding individual ducts and the fan is rotatable to propel fluid received in the inlet through the duct to create lift.