Flywheel Bearing Assembly for Scalable Mechanical Energy Storage
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Solution Overview
Problem
Current electrical energy storage solutions, particularly chemical batteries, are expensive, complex, environmentally unfriendly, and have short lifespans, making them undesirable for residential and utility applications, while existing mechanical energy storage systems are too large or complex for residential use and face scalability issues.
Innovation Solution
A flywheel-based mechanical energy storage system with improved bearings, magnetic couplings, and clamping plates that reduce vertical force, allowing for scalable and efficient energy storage at both residential and utility levels, including a rotatable mass component, axles, top and bottom bearing assemblies, and a support structure with a motor and enclosure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If chemical batteries are used for energy storage, then energy storage capacity is improved, but cost, complexity, and environmental harm increase
Solution Approach 1:
The patent replaces chemical battery systems with a mechanical flywheel energy storage system. The flywheel stores energy kinetically through rotation, eliminating the need for chemical reactions, toxic materials, and complex battery management systems while providing scalable energy storage capacity.
Solution Approach 2:
The patent changes the fundamental storage mechanism from chemical to mechanical kinetic energy. By altering the physical state and storage principle, the system achieves energy storage without the drawbacks of chemical batteries, including reduced complexity and environmental impact.
2Object-generated harmful factors
If mechanical energy storage systems are used, then environmental friendliness and simplicity are improved, but system size and complexity increase
Solution Approach 1:
The patent divides the flywheel system into modular components including the flywheel rotor, bearing assemblies, vacuum enclosure, and motor-generator. This segmentation allows the system to be scaled to different sizes for residential or utility applications while maintaining environmental friendliness and mechanical simplicity.
Solution Approach 2:
The patent nests the flywheel rotor within a vacuum enclosure, which is contained within a support structure. This nested arrangement minimizes the overall system volume while protecting internal components, allowing compact design without sacrificing the environmental benefits of mechanical energy storage.
3Strength
If traditional bearing assemblies are used, then structural support is improved, but friction and energy loss increase
Solution Approach 1:
The patent places the flywheel and bearing assemblies in a vacuum enclosure, eliminating air resistance and reducing friction on the bearings. This inert environment dramatically reduces energy loss while maintaining the structural support function of the bearing assemblies.
Solution Approach 2:
The patent uses magnetic bearing assemblies that operate in a vacuum environment, eliminating the need for traditional lubrication and reducing mechanical friction. The magnetic fields provide contactless support, minimizing energy loss while maintaining structural integrity.
4Productivity
If flywheel speed is increased to improve energy storage efficiency, then energy density is improved, but centrifugal force and mechanical stress increase
Solution Approach 1:
The patent employs composite materials for the flywheel rotor construction, combining materials with high strength-to-weight ratios. This allows the rotor to withstand high rotational speeds and associated centrifugal stresses while maintaining energy storage efficiency.
Solution Approach 2:
The patent uses a disc-shaped or cylindrical flywheel geometry with optimized curvature distribution. This shape minimizes stress concentration during high-speed rotation while maximizing moment of inertia for efficient energy storage.
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 flywheel system provides efficient, safe, and scalable energy storage, enabling backup power during outages, offsetting uneven power production and usage, and integrating with renewable energy sources, while being environmentally friendly and cost-effective.
Implementation Method 1
a motor coupled with the one or more axles at the top bearing assembly
Implementation Method 2
a bottom bearing assembly coupled with the one or more axles at the bottom of the rotatable mass component; a top bearing assembly coupled with the one or more axles at the top of the rotatable mass component
Implementation Method 3
the top bearing assembly including a top bearing coupling with the one or more axles and a magnet that applies a pulling force to the rotatable mass component
Data Source
AI summary
A system may include a massive flywheel including a rotatable mass component and one or more axles coupled with the rotatable mass component, the one or more axles extending from a top of the rotatable mass component and from a bottom of the rotatable mass component. A system may include a bottom bearing assembly coupled with the one or more axles at the bottom of the rotatable mass component. A system may include a top bearing assembly coupled with the one or more axles at the top of the rotatable mass component. A system may include a support structure coupled with the top bearing assembly and the bottom bearing assembly. A system may include a motor coupled with the one or more axles at the top bearing assembly.