Movable Steam Outlet Storage for Safer Beverage Machine Descaling

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Solution Overview

Problem

Existing beverage preparation machines with hot water and/or steam delivery systems face issues with scale accumulation, leading to clogging and require frequent cleaning and descaling processes, which can be cumbersome and unsafe.

Innovation Solution

A machine design featuring a movable hot water and/or steam generator outlet that can be stored within the machine's body, incorporating a reservoir for fluid collection and a control unit to prevent uncontrolled fluid projections and ensure safe operation during cleaning and descaling processes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the hot water and/or steam generator outlet is made movable to enable flexible delivery, then the versatility of the machine is improved, but the risk of uncontrolled fluid projections and safety hazards increases

Engineering Contradiction:
Improveflexibility of fluid deliveryVSAvoiduncontrolled fluid projections
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

A fluid guide element is introduced as an intermediary component between the movable generator outlet and the external environment. This guide element channels and controls the fluid flow, ensuring that even when the outlet is movable, the fluid projections remain controlled and directed along a predetermined path, thereby eliminating the safety hazard while preserving versatility

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The generator outlet is designed to be movable rather than fixed, allowing it to adapt its position for different delivery configurations. This dynamic capability enables the machine to serve multiple functions (beverage preparation, cleaning, descaling) while the fluid guide element ensures that movement does not compromise safety

Inventive Principle:
Principle #15Dynamics

2Reliability

If the machine includes cleaning and descaling circuits, then the reliability is improved, but the complexity of operation increases

Engineering Contradiction:
Improvemaintenance capabilityVSAvoidoperational simplicity
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The cleaning and descaling circuits are merged with the existing fluid delivery system, using the same pump and fluid guide infrastructure. This integration allows maintenance functions to be performed through the same operational interface as beverage preparation, reducing the learning curve and operational complexity while maintaining comprehensive maintenance capability

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The fluid delivery system is designed with multi-functionality, serving both beverage preparation and maintenance (cleaning/descaling) purposes. The movable generator outlet and fluid guide element can be configured for different functions, allowing a single system to handle multiple tasks without requiring separate dedicated circuits, thereby simplifying operation

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

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 simplifies maintenance by confining fluids within the machine, reducing the risk of uncontrolled fluid projections and enhancing safety during cleaning and descaling, while preventing beverage preparation when the generator is in storage or cleaning configurations.

Implementation Method 1

a hot water and/or steam generator (30) having an operative configuration in which an outlet (31) of the generator delivers via the outlet (31) hot water and/or steam

Methodology Applied
Scientific EffectHeating: Heating

Data Source

PatentEP2571407B1Storable hot water or steam delivery device
Publication Date: 2014.04.16 NESTEC SA
  • EP2571407B1 patent drawingFigure 1~3

AI summary

A beverage preparation machine (1) has: a body (40) with an opening (41); and a hot water and/or steam generator that comprises a movable outlet (31). The generator and the outlet have an operative configuration for delivering via the outlet hot water and/or steam and a storage configuration in which the outlet (31) of the generator is moved and received in the opening (41) of the body.