Wing-Integrated Electric Fan Array for VTOL Propulsion Efficiency
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Aircraft designed for vertical takeoff and landing face inefficiencies due to propulsors that are optimized for either vertical or forward thrust, leading to complications in propulsion systems.
Innovation Solution
Integration of a propulsion system with vertical thrust electric fans into the support structure of the wing, utilizing a grid of longitudinal and transverse support members to accommodate a large number of small electric fans, allowing efficient vertical and forward thrust operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a single large propulsor is used to generate both vertical and forward thrust, then the aircraft can achieve vertical takeoff and landing capability, but the propulsor efficiency decreases when operating in modes not optimized for its design
Solution Approach 1:
The patent divides a single large propulsor into multiple smaller electric fans (e.g., seven fans arranged in a specific pattern). Each fan can be independently controlled to provide vertical thrust when needed, while the collective arrangement of multiple smaller fans maintains efficiency during forward flight operations, resolving the efficiency loss problem of single large propulsors operating in non-optimized modes
2Adaptability or versatility
If vectored propulsors are used to generate both vertical and forward thrust, then the aircraft achieves multi-mode propulsion capability, but the propulsor design becomes complicated and less efficient
Solution Approach 1:
The patent segments the propulsion system into multiple independent electric fans with separate control systems. This allows each fan to be optimized for its specific function (vertical thrust or forward thrust) rather than requiring a single complex vectored propulsor to handle both modes, thereby reducing overall design complexity while maintaining multi-mode capability
Solution Approach 2:
The arrangement of multiple electric fans creates a universal propulsion system where the same fan array can serve multiple functions: individual fans can be activated for vertical thrust, fans can be arranged in configurations for forward thrust, and the system can transition between modes. This multi-functionality eliminates the need for separate specialized propulsors for each operation type
3Productivity
If a large number of small electric fans are integrated into the wing support structure, then the aircraft achieves efficient thrust generation with minimal structural impact, but the integration process becomes complex
Solution Approach 1:
The patent merges the propulsion system with the wing support structure by integrating electric fans into the existing grid of longitudinal and transverse support members. The fans are positioned within the structural grid, combining structural support and thrust generation functions into a unified design, which simplifies manufacturing compared to separate installations
Solution Approach 2:
The support structure serves multiple functions: it provides structural support for the wing and simultaneously serves as the mounting framework for the electric fans. The grid of support members creates a universal framework that accommodates both structural requirements and propulsion needs, reducing the need for additional integration components
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
Enhances the efficiency of aircraft by enabling simultaneous vertical takeoff and landing capabilities with minimal impact on structural design, while providing adequate thrust for both operations.
Implementation Method 1
a propulsion system with vertical thrust electric fans
Data Source
AI summary
An aircraft defining a vertical direction, a longitudinal direction, and a transverse direction is provided. The aircraft includes: a fuselage; a propulsion system comprising a power source and a plurality of vertical thrust electric fans driven by the power source; and a wing extending from the fuselage in the transverse direction. The wing includes a support structure that comprises a plurality of first support members and a plurality of second support members. The plurality of first support members extending at least partially between the plurality of second support members. The plurality of vertical thrust electric fans arranged between the plurality of first support members and the plurality of second support members.