Compartmentalized Brush Core for Uniform Low-Fluid Wetting

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Solution Overview

Problem

Existing cleaning apparatuses face challenges in efficiently distributing a minimal amount of cleaning solution over a rotating brush to achieve a uniform wetting profile, making it difficult to maintain effectiveness while conserving water.

Innovation Solution

A brush assembly with a hollow core compartmentalized on the inner surface and pierced with outflow openings, combined with a fluid injector and drive mechanism, ensures uniform distribution of cleaning solution through centrifugal force, allowing for precise control over the wetting profile by configuring compartments and outflow openings.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Loss of substance

If minimal cleaning solution is used, then water consumption is reduced and device size is minimized, but uniform distribution of cleaning solution over the brush surface becomes difficult to achieve

Engineering Contradiction:
Improvewater consumptionVSAvoidwetting profile uniformity
Core Design Contradiction:
Loss of substanceVSManufacturing precision

Solution Approach 1:

The hollow core is compartmentalized into multiple compartments, each responsible for distributing a portion of the cleaning solution to a specific brush zone. This segmentation allows precise control over solution distribution, ensuring uniform wetting even with minimal total water consumption by optimizing the placement and size of individual compartments and their corresponding outflow openings.

Inventive Principle:
Principle #1Segmentation

2Productivity

If minimal cleaning solution is used, then the cleaning device becomes more economical and compact, but the ability to maintain effective cleaning performance deteriorates

Engineering Contradiction:
Improvecleaning efficiencyVSAvoidcleaning solution consumption
Core Design Contradiction:
ProductivityVSLoss of substance

Solution Approach 1:

Different compartments can be designed with varying sizes, shapes, and outflow opening configurations to create localized wetting patterns optimized for specific brush zones. This allows the system to maintain high cleaning efficiency in areas requiring more moisture while using minimal solution overall, achieving effective cleaning performance with reduced total consumption.

Inventive Principle:
Principle #3Local quality

3Manufacturing precision

If centrifugal force is used to distribute fluid, then uniform wetting profile is achieved with minimal solution, but the system becomes dependent on rotational speed

Engineering Contradiction:
Improvewetting profile uniformityVSAvoidcontrol system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The compartmentalized core structure with strategically positioned outflow openings creates a passive distribution system that automatically achieves uniform wetting through centrifugal force during normal brush rotation. The geometry of compartments and openings is designed to optimize fluid distribution at operational rotational speeds, eliminating the need for additional control mechanisms, sensors, or active regulation systems.

Inventive Principle:
Principle #25Self-service

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 effectively distributes cleaning solution across the brush surface, ensuring a uniform wetting profile even with minimal solution usage, enhancing cleaning efficiency and allowing for a compact, ergonomic design.

Implementation Method 1

The centrifugal force associated with the rotation of the core drains the fluid from the compartments, through the outflow openings, into the brush material

Methodology Applied
Scientific EffectCentrifugal force: Centrifugal Force

Data Source

PatentUS8555446B2Fluid distributing brush assembly and method for operating the same
Publication Date: 2013.10.15 VERSUNI HLDG BV
  • US8555446B2 patent drawing
  • US8555446B2 patent drawing
  • US8555446B2 patent drawing

AI summary

Disclosed is a brush assembly suitable for use in a wet floor cleaning device. The brush assembly comprises a brush that includes a hollow core. An inner surface of the core is compartmentalized into a number of compartments. An outer surface of the core is furnished with brush material, and the core is pierced with a number of outflow openings. The brush assembly further comprises a first fluid injector for injecting a fluid into the core, and a drive mechanism configured for rotating the brush around an axis. Also disclosed is a method for operating the brush assembly.