Modular River Cleaning Rotors That Preserve Boat Passage

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Solution Overview

Problem

Existing river and waterway cleaning systems are inefficient, disrupt ecosystems, require frequent maintenance, and cannot adapt to water flow, leading to ineffective waste collection and potential damage to aquatic life.

Innovation Solution

A modular system with floating or non-floating modules aligned along a watercourse, using blades to rotate with water flow, collecting waste and adapting to tidal movements while allowing boat passage, with energy harvesting and self-cleaning capabilities.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If fixed small draught nets are used to clean rivers, then waste collection is improved, but boat circulation is prevented

Engineering Contradiction:
Improvewaste collection efficiencyVSAvoidboat circulation
Core Design Contradiction:
ProductivityVSEase of operation

Solution Approach 1:

The patent employs floating modules that can be dynamically positioned and removed from the watercourse. The modules are constrained by beams that can be lifted or repositioned, allowing the system to transition between blocking and non-blocking states. This dynamic configuration enables waste collection during low-traffic periods while maintaining boat circulation during high-traffic periods, resolving the contradiction between productivity and ease of operation.

Inventive Principle:
Principle #15Dynamics

2Productivity

If floating dams are used to stop waste, then waste collection is improved, but organic materials accumulate and require frequent removal

Engineering Contradiction:
Improvewaste collection efficiencyVSAvoidmaintenance frequency
Core Design Contradiction:
ProductivityVSLoss of time

Solution Approach 1:

The patent divides the waste collection system into multiple independent floating modules distributed along the watercourse. Each module collects waste locally rather than concentrating all waste at a single floating dam. This segmentation prevents organic materials from accumulating in large quantities at one location, reducing the frequency and complexity of maintenance operations while maintaining effective waste collection throughout the watercourse.

Inventive Principle:
Principle #1Segmentation

3Productivity

If individual devices for removing floating oils are used, then oil removal is improved locally, but devices must be moved continuously and are ineffective in flowing water

Engineering Contradiction:
Improveoil removal efficiencyVSAvoiddevice mobility requirements
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions (waste collection, oil removal, and adaptability to water flow) into integrated floating modules that are distributed along the watercourse. Each module is designed to remain stationary relative to the water flow while effectively capturing floating contaminants. This merging of functions into stationary, flow-adapted modules eliminates the need for continuous device movement and maintains effectiveness in flowing water, reducing overall system complexity.

Inventive Principle:
Principle #5Merging (Combining)

4Productivity

If cleaning operations are carried out by blocking circulation, then waste collection is improved, but ecosystem disruption increases

Engineering Contradiction:
Improvewaste collection efficiencyVSAvoidecosystem disruption
Core Design Contradiction:
ProductivityVSObject-affected harmful factors

Solution Approach 1:

The patent employs floating modules that can be dynamically positioned and removed from the watercourse. The modules are constrained by beams that can be lifted or repositioned, allowing the system to transition between blocking and non-blocking states. This dynamic configuration enables waste collection during low-traffic periods while maintaining boat circulation during high-traffic periods, resolving the contradiction between productivity and ease of operation.

Inventive Principle:
Principle #15Dynamics

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

Efficient waste collection with minimal ecosystem disruption, adaptable to water flow, and reduced maintenance needs, enabling continuous operation and energy generation.

Implementation Method 1

blades configured so that, when subjected to the thrusting action exerted by the water, they cause the rotation of said module or part of it

Methodology Applied
Scientific EffectWater flow thrust: Fluid Spray

Implementation Method 2

A modular system with floating or non-floating modules aligned along a watercourse

Methodology Applied
Scientific EffectBuoyancy: Archimedes' Principle (Buoyancy)

Data Source

PatentEP4511540B1System for cleaning rivers and waterways in general
Publication Date: 2026.04.22 MOLD SRL
  • EP4511540B1 patent drawingFigure 1
  • EP4511540B1 patent drawingFigure 2~3
  • EP4511540B1 patent drawingFigure 4~5

AI summary

The invention is a system (100) for cleaning rivers and waterways (F) in general, comprising a plurality of floating or non-floating modules (20) configured to rotate at least due to the effect of the thrusting action (W) exerted by the water, constraining means (10) configured to constrain two or more of said modules (20) so that they are substantially aligned with one another along at least one main direction (X), and wherein said constraining means (10) are configured in such a way as to ensure that a minimum clearance is provided between each of said modules (20) and the adjacent module, so that said modules (20) do not come in contact with each other during their normal operation and that each of said modules (20), through its own rotation, pushes waste towards one of the adjacent modules (20).