Reciprocal Motion Wind Harvester with Inflatable Bellows
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional wind turbines are complex, expensive, and unsuitable for urban environments due to their optimal operating height and susceptibility to damage, lacking the ability to be strutted along a mast.
Innovation Solution
A self-oscillating wind-harnessing generator using cost-effective, lightweight pneumatic/electrical parts that can inflate to optimal height, operate as a high-flying kite, and harness both wind and undercurrents, converting wind energy into mechanical or electrical energy through a bellows assembly and vane rotation mechanism.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional wind turbines are used, then wind energy can be captured, but the system becomes complex and expensive to develop and construct
Solution Approach 1:
The device divides the wind energy capture function into separate components: vanes for capturing wind, a rotor for converting wind force to rotational motion, and a bellows system for converting reciprocating motion to compressive force. This segmentation allows each component to be optimized independently and simplifies the overall system design compared to conventional turbines
Solution Approach 2:
The invention uses a bellows assembly with a flexible diaphragm to convert the reciprocating motion from the rotor into compressive force. This pneumatic mechanism replaces complex mechanical gear systems and directly generates useful output in the form of compressed air or hydraulic pressure, reducing overall system complexity
2Productivity
If wind turbines operate at optimal height, then energy capture efficiency is improved, but the system becomes unsuitable for urban environments
Solution Approach 1:
The device incorporates an inflatable structure that can dynamically adjust its height by filling with air or gas. This allows the system to be deployed at various heights depending on the installation environment - low enough for urban settings while still capturing effective wind energy, and high enough for optimal performance in open areas
Solution Approach 2:
The operational parameters of the device can be changed by adjusting the inflation level of the structure. This modifies key parameters such as height, surface area for wind capture, and structural rigidity, allowing the same device to adapt to different environmental conditions and installation locations
3Strength
If wind turbines are constructed with rigid structures, then structural strength is improved, but the system becomes susceptible to damage from wind loads
Solution Approach 1:
The device uses a flexible diaphragm within the bellows assembly and an inflatable outer structure instead of rigid shells. These flexible elements can deform under wind loading and then return to their original shape, absorbing energy from gusts and avoiding the catastrophic failure that can occur with rigid structures subjected to the same loads
Solution Approach 2:
The flexible diaphragm and inflatable structure act as a cushioning mechanism that prepares the system to absorb wind loads before they can cause damage. The compliance of these elements allows the structure to yield controllably during extreme events, protecting more critical components from damage
4Productivity
If conventional wind turbines are deployed, then wind energy is captured, but the system is expensive to construct and maintain
Solution Approach 1:
The device uses simpler, less expensive materials such as flexible membranes, basic mechanical linkages, and inflatable structures rather than costly composite materials and precision-engineered components found in conventional turbines. While individual components may have shorter lifetimes, the overall system cost is reduced, and maintenance can be performed more economically
Solution Approach 2:
The invention extracts only the essential functions needed for wind energy capture and conversion, eliminating unnecessary components found in conventional turbines such as complex gearboxes, heavy towers, and elaborate control systems. This extraction of core functionality simplifies manufacturing and reduces material costs
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 solution provides a cost-effective, adaptable, and efficient means to capture wind energy in urban environments and underwater currents, converting wind energy into usable mechanical or electrical power with a self-oscillating mechanism that is robust and deployable.
Implementation Method 1
a rotor having an automatic oscillating, scissor-like mechanism that converts wind energy into mechanical energy
Implementation Method 2
a bellows system that converts said mechanical motion into compressive force to drive a turbine
Implementation Method 3
a diaphragm that stores and directs driven compressive air
Data Source
AI summary
A reciprocal motion wind energy harvesting device has a first lever arm assembly and a second lever arm assembly, which are supported by and rotate about a central shaft. The lever arm assemblies have pluralities of vanes along their length to receive wind force. The vanes are configured to be rotatable in order to produce opposing and reciprocating motion of the lever arm assemblies. The lever arm assemblies are operatively connected to a generator in order to convert the wind force received by the vanes into energy.