Embedded Electric Engines in Aircraft Wings for Aerodynamic Efficiency
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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 often fail to improve lift forces or aerodynamics significantly.
Innovation Solution
Integrate electric engines within the wing structure of aircraft, embedding propulsion systems within the wing assembly to optimize aerodynamics, weight, and structural efficiency, utilizing a compact and linear arrangement of propulsion systems supported by spars and skins, with movable control surfaces to adjust performance for various flight conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If combustion engines are hung from wings or carried by fuselage, then propulsion function is achieved, but aerodynamic efficiency deteriorates and weight increases
Solution Approach 1:
The patent merges the propulsion system with the wing structure by embedding engines within the wing assembly. The wing assembly includes an upper wing portion, lower wing portion, and spars with engines positioned between them, integrating two previously separate functions (lift generation and propulsion) into a single unified structure.
Solution Approach 2:
The wing assembly serves multiple functions simultaneously: it generates lift through its aerodynamic shape, houses and supports the propulsion engines, provides structural framework via spars and skins, and enables thrust generation. This multi-functionality reduces overall aircraft weight by eliminating separate mounting structures.
2Power
If combustion engines are used, then propulsion is achieved, but aerodynamic efficiency and structural optimization are compromised
Solution Approach 1:
The engine housing is integrated into the wing assembly structure itself, with engines positioned between upper and lower wing portions. This merging allows the wing's aerodynamic shape to be maintained while accommodating propulsion systems, rather than having engines mounted externally that would disrupt airflow.
Solution Approach 2:
The patent applies different local qualities to different regions of the wing assembly: the upper and lower wing portions maintain smooth aerodynamic surfaces for lift generation, while the internal region between spars accommodates engines and mechanical components. This localized differentiation optimizes both aerodynamics and propulsion integration.
3Shape
If engines are embedded within wing structure, then aerodynamic efficiency and weight are improved, but structural complexity increases
Solution Approach 1:
The wing assembly is segmented into distinct functional regions: upper wing portion, lower wing portion, spars providing structural support, and engine housing spaces between them. This segmentation allows each component to be optimized independently while maintaining overall aerodynamic efficiency and simplifying manufacturing.
Solution Approach 2:
The engines are nested within the wing assembly structure, with engine housings positioned between the upper and lower wing portions and supported by the spars. This nesting integrates propulsion components within the existing wing framework rather than adding external attachments, reducing overall structural complexity.
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
This design enhances aerodynamic and structural efficiency, reduces weight, and improves lift and thrust performance by optimizing engine placement within the wing, allowing for reduced maintenance and increased operational flexibility.
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.