Single-Nozzle Drinks Machine for Hot Water and Steam Delivery
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Solution Overview
Problem
Existing drinks machines with separate outlets for hot water and steam are costly, large, and difficult to clean, with multiple components prone to failure and contamination issues when switching between functions.
Innovation Solution
A drinks machine design featuring a single output nozzle that can deliver either hot water or steam, with a detachable steam inlet for the milk frothing unit, allowing for easy selection between modes without contamination and simplified cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate dedicated outlets are provided for hot water and steam delivery, then both functions can be performed simultaneously, but the appliance cost, size, and component failure risk increase
Solution Approach 1:
The single outlet is designed to perform multiple functions by delivering different substances (steam or hot water) based on operational mode. The outlet structure includes a steam delivery path and a hot water delivery path that can be selectively activated, allowing one physical outlet to replace what would traditionally require two separate outlets, thereby reducing device complexity while maintaining functional versatility
Solution Approach 2:
The steam outlet and hot water outlet functions are merged into a single physical outlet structure. The patent describes how the outlet housing contains both a steam delivery path and a hot water delivery path, with selective gating mechanisms that direct either steam or hot water through the same external outlet, effectively combining two functions into one unified component
2Device complexity
If a single outlet is used for both steam and hot water delivery, then cost and size are reduced, but contamination risk increases when switching between functions
Solution Approach 1:
The outlet is segmented into distinct internal pathways: a steam delivery path and a hot water delivery path. These pathways are physically separated within the outlet housing and are selectively activated through gating mechanisms. This segmentation ensures that steam and hot water do not mix within the outlet structure, and that residual substances are confined to their respective pathways, preventing cross-contamination when switching between functions
Solution Approach 2:
Gating mechanisms act as intermediaries between the steam delivery path and hot water delivery path. These gates selectively open or close to direct either steam or hot water through the outlet, preventing direct mixing of the two substances. The gating system serves as a mediator that controls flow direction and prevents contamination by ensuring only one substance passes through the outlet at a time
3Adaptability or versatility
If multiple outlets are provided for steam and hot water delivery, then functional versatility is improved, but cleaning complexity increases
Solution Approach 1:
The outlet housing combines the steam outlet and hot water outlet into a single removable unit. This unified structure allows the user to clean both delivery pathways by simply removing and washing the entire outlet assembly, eliminating the need to separately clean multiple distinct outlets. The merging of cleaning tasks into a single operation significantly reduces cleaning complexity while maintaining the ability to deliver both steam and hot water
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 reduces costs, minimizes component failure, and simplifies cleaning by using a single nozzle for both functions, ensuring the output nozzle remains milk-free and easy to maintain.
Implementation Method 1
a water heater
Implementation Method 2
an output nozzle for delivering hot water or steam depending on the selection at the user interface
Implementation Method 3
a milk frothing unit having a steam inlet. The steam inlet may be detachably associated to the output nozzle for receiving steam therefrom
Data Source
AI summary
A drinks machine has an output nozzle for delivering hot water or steam, Steam is used by a milk frothing unit whereas hot water is delivered by the output nozzle directly to the exterior of the drinks machine for collection in a drinks vessel. A single nozzle is thus provided for steam or hot water delivery and there is no need for any accessory when delivering hot water. This means that there is reduced cost, fewer components to lose, and simplified cleaning, in that only per-use cleaning of the milk frothing unit is required, not the fixed parts of the appliance associated with the milk frothing unit.