Rotating Liquid Flywheel Energy Storage

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Solution Overview

Problem

Current rotational energy storage methods, such as flywheels and waterwheels, face limitations in increasing energy storage capacity due to the linear progression of mass increase and the high energy requirements for starting motion, especially with high-speed flywheels needing expensive materials and safety measures, and water-powered systems not effectively utilizing liquid mass for enhanced rotational energy.

Innovation Solution

A system where liquid is contained and rotated within a circular container with a tangential inlet and outlet, allowing continuous energy input to maintain rotational velocity, with a rotating shaft driven by the liquid's kinetic energy, and a paddle mechanism to minimize turbulence and retain liquid, enabling efficient energy transfer and storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Quantity of substance

If water wheels are used to store rotational energy, then energy storage capacity can be increased by increasing the mass of the wheel, but the energy required to start the wheel in motion increases significantly when the mass becomes too great

Engineering Contradiction:
Improvemass of wheelVSAvoidenergy required to start motion
Core Design Contradiction:
Quantity of substanceVSUse of energy by moving object

Solution Approach 1:

The patent uses hydraulic principles by introducing a liquid (water) into the rotating wheel structure. The liquid is injected through inlet ports and exits through outlet ports positioned at different heights, creating a hydraulic mechanism that adds rotational force to the wheel. This hydraulic augmentation allows the system to achieve higher rotational energy storage without proportionally increasing the solid mass of the wheel, thereby reducing the starting energy requirement compared to purely mechanical mass increase.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent changes the physical state and distribution of mass by introducing liquid into the wheel structure. Instead of relying solely on solid mass, the system utilizes the dynamic addition of liquid mass during rotation. The liquid is introduced at specific points and heights, changing the effective mass distribution and moment of inertia parameters of the rotating system, allowing for increased energy storage with reduced starting energy requirements.

Inventive Principle:
Principle #35Parameter changes

2Quantity of substance

If high-speed flywheels are used to store rotational energy, then energy storage capacity increases with the square of velocity, but expensive composite materials, magnetic bearings, vacuum chambers and extensive safety measures are required

Engineering Contradiction:
Improverotational energy storageVSAvoidmaterials and safety measures
Core Design Contradiction:
Quantity of substanceVSDevice complexity

Solution Approach 1:

The patent employs hydraulic mechanisms to achieve high rotational energy storage without requiring the extreme velocities that necessitate expensive flywheel systems. By injecting liquid into the wheel and utilizing hydraulic forces, the system generates additional rotational force that increases energy storage capacity while operating at lower, safer velocities. This eliminates the need for costly composite materials, magnetic bearings, and vacuum chambers.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The liquid injection system serves multiple functions simultaneously: it increases the effective mass of the rotating system, provides hydraulic force multiplication, and acts as a damping mechanism. The liquid is introduced through inlet ports and exits through outlet ports, creating a self-sustaining hydraulic cycle that continuously adds energy to the rotation without requiring external intervention or complex safety systems.

Inventive Principle:
Principle #25Self-service

3Quantity of substance

If liquid is used to increase the mass of the flywheel for larger rotational energy storage, then energy storage capacity increases, but the liquid only works as mass and rotational energy is increased by external mechanical means only

Engineering Contradiction:
Improvemass of flywheelVSAvoidrotational energy increase efficiency
Core Design Contradiction:
Quantity of substanceVSProductivity

Solution Approach 1:

The patent transforms the liquid from a passive mass into an active hydraulic mechanism. Liquid is injected through inlet ports positioned at specific heights and exits through outlet ports at different heights, creating hydraulic forces that actively contribute to rotational energy increase. The hydraulic arrangement allows the liquid to do work on the wheel during injection and extraction, efficiently transferring energy without requiring external mechanical means alone.

Inventive Principle:
Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent introduces a vertical dimension to the liquid injection system by positioning inlet and outlet ports at different heights. This height differential creates gravitational and pressure-driven hydraulic forces that add rotational energy to the system. The liquid moves through a three-dimensional path within the wheel, utilizing both radial and vertical components to maximize energy transfer efficiency, rather than simply adding mass in a two-dimensional plane.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

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 approach allows for continuous rotation and increased kinetic energy storage without the need for excessive mass or expensive materials, as the liquid's rotational velocity is increased, enabling efficient energy transfer and utilization, while reducing energy losses and turbulence.

Implementation Method 1

The present invention uses liquid that is contained and rotated... energy is continuously input in the form of work done on the contained liquid to cause continuous rotation at the same rotational velocity, while simultaneously mechanical energy is continuously extracted in the form of a rotating shaft

Methodology Applied
Scientific EffectKinetic energy transfer:

Implementation Method 2

Flywheels and waterwheels are the most similar examples as the current invention incorporates features of both... water wheels, all of the mechanical force to rotate the wheel comes from the flowing water and all of the rotational energy is stored in the mass of the wheel

Methodology Applied
Scientific EffectRotational energy storage: Angular Momentum

Data Source

PatentUS11242838B2Increasing mechanical advantage through the use of a rotating liquid
Publication Date: 2022.02.08 WERLPOWER LLC
  • US11242838B2 patent drawing
  • US11242838B2 patent drawing
  • US11242838B2 patent drawing

AI summary

The disclosed invention is a description of the means to create increased mechanical advantage by taking advantage of the rotation of confined liquid matter. The process described uses liquid both as a mass to store rotational energy, and at the same time the rotating liquid is used as a motive force to drive a rotating shell. A description of the process and one possible embodiment are presented.