Inflatable Aerodynamic Deflector With Drop Stitch Structure for Drag Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing vehicles, particularly commercial trucks and trailers, suffer from suboptimal aerodynamic designs that lead to increased drag and fuel consumption, with traditional solutions often compromising other design considerations like manufacturing ease, weight, and flexibility.
Innovation Solution
An inflatable aerodynamic deflector made from drop stitch material with adjustable yarns and inflation mechanisms, allowing for customizable shapes to reduce drag and improve fuel efficiency by adapting to varying conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixed aerodynamic structures are used, then aerodynamic performance is improved, but device complexity and manufacturing difficulty increase
Solution Approach 1:
The patent applies the dynamics principle by using an inflatable structure that can change its aerodynamic configuration from a deflated state (low complexity) to an inflated state (high aerodynamic performance). The structure transitions between different states based on operational needs, allowing the vehicle to optimize aerodynamics only when required rather than maintaining a complex fixed structure.
Solution Approach 2:
The patent utilizes parameter changes by varying the inflation state of the aerodynamic structure. By controlling the inflation pressure and volume, the system can adjust its aerodynamic properties dynamically. This allows the same physical structure to provide different levels of aerodynamic performance based on operational conditions, resolving the contradiction between performance and complexity.
2Use of energy by moving object
If aerodynamic optimization is prioritized, then fuel efficiency is improved, but ease of manufacture and flexibility are compromised
Solution Approach 1:
The patent employs flexible shells and thin films by using an inflatable membrane structure made from flexible materials. This allows the aerodynamic surface to be manufactured more easily compared to rigid structures, while still providing effective aerodynamic optimization when inflated. The flexible nature of the material simplifies manufacturing and assembly processes.
Solution Approach 2:
By making the aerodynamic structure inflatable and dynamic rather than fixed, the patent enables easier manufacturing and installation. The structure can be compact during transport and only deployed when aerodynamic optimization is needed, reducing the complexity of permanent installation while maintaining manufacturing simplicity.
3Object-affected harmful factors
If vehicle shape is optimized for aerodynamics, then drag is reduced, but adaptability to different driving conditions is limited
Solution Approach 1:
The patent resolves the adaptability contradiction by implementing a dynamic inflatable structure that can adjust its aerodynamic properties in real-time based on driving conditions. The system can be inflated during high-speed highway driving to reduce drag, and deflated during low-speed or maneuvering conditions where aerodynamic optimization is less critical, providing versatility across different operating scenarios.
Solution Approach 2:
The patent applies periodic action by cycling the inflatable structure between inflated and deflated states based on varying driving conditions. The system responds periodically to changes in vehicle speed, load, and environmental conditions, optimizing aerodynamics when beneficial and reducing complexity when not needed, thereby achieving adaptability across diverse driving scenarios.
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 inflatable deflector effectively reduces aerodynamic drag and enhances fuel efficiency by optimizing airflow, improving vehicle performance across different speeds and conditions.
Implementation Method 1
an inflatable component featuring an air chamber formed from a drop stitch material
Implementation Method 2
designed to be integrated with a variety of vehicles... to reduce aerodynamic drag and improve fuel efficiency
Data Source
AI summary
An inflatable aerodynamic deflector to reduce drag and enhance efficiency. Constructed from drop stitch material, it forms one or more air chambers between parallel skins. The component includes a pressure regulation mechanism and diverse attachment interfaces such as rail systems, magnetic fasteners, and quick disconnect clips, distributed along the vehicle for secure mounting. This component acts as an aerodynamic deflector, optimizing airflow around conveyances, especially combination vehicles like tow vehicles and trailers.