External Fluid Distribution for Cleaning Machines With Shared Air and Water

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Solution Overview

Problem

Existing automatic cleaning and disinfecting machines with multiple fluid dispensing devices face challenges in space efficiency, increased complexity, and hygiene safety due to the need for separate separating and distributing devices and complex feed line connections, which are costly and prone to errors.

Innovation Solution

A compact and hygienically safe design where the separating and distributing device is located outside the washing chamber, with separate connections for washing liquor and drying air, and a self-folding flap mechanism ensures efficient fluid flow and eliminates the need for additional valve devices and leakage lines, allowing for easy connection of multiple fluid delivery devices.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate separating and distributing devices are provided for each fluid delivery device, then fluid delivery can be controlled, but device complexity and production costs increase

Engineering Contradiction:
Improvefluid delivery controlVSAvoidnumber of components
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

Multiple separating and distributing devices are merged into a single common separating and distributing device that serves all fluid delivery devices. This single device includes multiple inlet connections for washing liquor and drying air, and multiple outlet connections that can be selectively coupled to different fluid delivery devices, thereby reducing the total number of components while maintaining fluid delivery control capability.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The common separating and distributing device is designed with multi-functionality to handle both washing liquor and drying air distribution to multiple fluid delivery devices. It includes valve mechanisms that can selectively route different fluids to different outlets, allowing one device to perform the functions previously requiring multiple separate devices.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Ease of operation

If separating and distributing devices are arranged within the washing chamber, then fluid delivery is simplified, but washing area is reduced

Engineering Contradiction:
Improvefluid deliveryVSAvoidwashing area
Core Design Contradiction:
Ease of operationVSArea of stationary object

Solution Approach 1:

The separating and distributing device is extracted from the washing chamber interior and positioned in the external region. The device includes external inlet connections for washing liquor and drying air, and outlet connections that extend toward the washing chamber. This external positioning removes the bulk of the device from the limited washing space while maintaining functional connectivity through the connection lines.

Inventive Principle:
Principle #2Taking out (Extraction)

3Adaptability or versatility

If multiple individual separating and distributing devices are used, then each fluid delivery device can be controlled independently, but connection effort and assembly complexity increase

Engineering Contradiction:
Improveindependent controlVSAvoidassembly complexity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

Multiple independent controlling functions are merged into a single integrating separating and distributing device. The device includes multiple valve mechanisms within one housing structure, allowing independent control of washing liquor and drying air delivery to different fluid delivery devices. This integration reduces the number of separate components that need to be assembled and connected, simplifying manufacturing while preserving independent control capability.

Inventive Principle:
Principle #5Merging (Combining)

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 design optimizes the use of washing space, simplifies assembly, and enhances hygiene safety by reducing the risk of contamination, while allowing for efficient operation with multiple fluid delivery devices, making it suitable for both small and large machines.

Implementation Method 1

When the separating and distributing device is charged either with rinsing liquor or with drying air, the corresponding inflow automatically opens the flap and couples the inlet connection for rinsing liquor or the inlet connection for drying air to the outlet connection

Methodology Applied
Scientific EffectFluid pressure differential: Pressure Gradient

Data Source

PatentEP2641619B1Cleaning and disinfection machine
Publication Date: 2014.10.01 MIELE & CO KG
  • EP2641619B1 patent drawingFigure 1
  • EP2641619B1 patent drawingFigure 2
  • EP2641619B1 patent drawingFigure 3

AI summary

The machine has a rinsing tub for providing a rinsing chamber that is lockable by a door. Two fluid delivery devices are arranged in the chamber for delivering rinsing water and drying air. A separation and distribution device (10) feeds the rinsing water or the drying air to the fluid delivery devices. A rinsing water connection (11) and a separately formed drying air connection (12) are arranged at an inlet side of the distribution device. Common outlet connections (15-17) for discharging the water and the air are arranged at an outlet side of the distribution device. The separation and distribution device is designed as an independent handling equipment.