Weight Elevation Energy Storage Using Gripper-Trolley Load Handling

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Solution Overview

Problem

Renewable energy sources like solar and wind power are inherently unpredictable and unreliable due to environmental conditions, leading to inefficiencies in electricity generation and delivery, especially in isolated grids without energy storage systems.

Innovation Solution

An energy storage and delivery system with a gripper and trolley configuration that lifts and lowers loads vertically and horizontally, using a rope and drive mechanism to charge and discharge energy, incorporating a cell structure with grippers and trolleys for efficient energy management.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If renewable energy sources (solar, wind) are used for electricity generation, then alternative energy supply is improved, but reliability and predictability deteriorate due to environmental dependency

Engineering Contradiction:
Improvealternative energy supplyVSAvoidenergy delivery reliability
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The system performs preliminary action by lifting weights to store energy during periods of excess renewable energy generation or low demand. This advance energy storage enables reliable power delivery during peak demand or when renewable sources are unavailable, resolving the reliability issue while maintaining adaptability to environmental conditions

Inventive Principle:
Principle #10Preliminary action

2Reliability

If energy storage systems are added to balance demand and supply, then grid stability is improved, but system complexity increases

Engineering Contradiction:
Improvegrid stabilityVSAvoidsystem structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The invention replaces complex electrical energy storage systems (batteries, capacitors) with a mechanical weight-based storage system. The counterweight mechanism uses gravitational potential energy storage through simple mechanical components (weights, pulleys, ropes), achieving grid stability without the complexity of electrical storage infrastructure

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Ease of manufacture

If a mechanical weight-based energy storage system is implemented, then cost-effectiveness is improved, but space requirements increase due to vertical movement mechanisms

Engineering Contradiction:
Improvecost-effectivenessVSAvoidvertical space requirement
Core Design Contradiction:
Ease of manufactureVSLength of stationary object

Solution Approach 1:

The system utilizes the vertical dimension for energy storage by moving weights up and down, effectively using height rather than horizontal footprint. This dimensional approach allows compact installation in spaces with vertical clearance, maintaining cost-effectiveness while minimizing land use through vertical rather than horizontal expansion

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

The system provides a cost-effective and reliable solution for balancing electricity demand and consumption, ensuring consistent energy delivery by lifting and lowering loads to manage energy storage and discharge, enhancing grid stability.

Implementation Method 1

a gripper configured to couple to a load and lift the load vertically from a second position to a first position, or to lower the load from the first position to the second position

Methodology Applied
Scientific EffectGravitational potential energy storage: Gravitation

Data Source

PatentUS20260049599A1Energy storage and delivery system with a weight elevation
Publication Date: 2026.02.19 PRAK ENERGY INC
  • US20260049599A1 patent drawing
  • US20260049599A1 patent drawing
  • US20260049599A1 patent drawing

AI summary

A method of storing and delivering energy is disclosed. The method provides vertically lifting the load with the gripper from a second position to a first position, or lowering the load from the first position to the second position. Further, moving the gripper with a trolley is configured to move horizontally whether or not the gripper is positioned within the trolley. Next, the according to the method a rope operably coupled to the gripper and the trolley to allow the trolley to move horizontally along the first position, and allow the gripper to lift or lower the load. Finaly, according to the method, at least one drive is actuated to move the rope along its length in a forward first direction or a reverse second direction, such that the movement of the rope in the forward first direction causes the gripper to lift the load from the second position to the first position and thereby charge the system, and the movement of the rope in the reverse second direction causes the gripper to lower the load from the first position to the second position and thereby discharge the system.