Single serve beverage pod
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Solution Overview
Problem
Single-serve pod systems for brewing beverages face issues with beverage spattering and excessive sediment due to high pressure forcing large particles through filters, which affects the taste and appearance of the beverage.
Innovation Solution
The pod design includes a filter with retainer walls and slits that control the flow of the beverage, allowing fine sediments to pass while restricting larger particles, and a second pathway that slows down the beverage flow to minimize spattering and sediment in the brewed beverage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high pressure is used to brew espresso, then extraction efficiency is improved, but large beverage particles are forced through the filter causing excessive sediment
Solution Approach 1:
The filter base is segmented into multiple layers with different pore sizes. The first layer (coarse filter) has larger pores to allow efficient extraction under high pressure, while the second layer (fine filter) has smaller pores to capture large sediment particles. This multi-layer segmentation resolves the contradiction by allowing high pressure brewing while preventing excessive sediment in the final beverage.
2Object-generated harmful factors
If a fine filter is used to reduce sediment, then beverage clarity is improved, but flow rate decreases and brewing efficiency is reduced
Solution Approach 1:
The filtering function is segmented into two distinct layers: a coarse filter layer for primary filtration that maintains high flow rate, and a fine filter layer for secondary filtration that reduces sediment. This segmentation allows the system to achieve both sediment reduction and maintained brewing efficiency, as each layer performs its specific function without overly restricting flow.
Solution Approach 2:
The filter system applies partial filtration at each stage rather than attempting complete filtration in a single layer. The coarse filter removes large particles while maintaining flow, and the fine filter provides additional sediment reduction. This partial action approach at multiple stages achieves effective sediment reduction without the excessive flow restriction that would result from a single fine filter layer.
3Productivity
If high pressure is applied during brewing, then extraction quality is improved, but beverage spattering increases
Solution Approach 1:
The multi-layer filter structure acts as an intermediary between the high pressure brewing process and the beverage discharge. The filter layers regulate and stabilize the pressure during extraction, allowing high pressure to be applied for quality extraction while the filter structure prevents pressure-induced spattering by controlling the flow path and providing a gradual pressure release mechanism.
4Device complexity
If a single filter layer is used, then device complexity is reduced, but filtering effectiveness is insufficient to prevent both sediment and maintain flow rate
Solution Approach 1:
The filter is segmented into two integrated layers within a single filter base structure. The coarse filter layer and fine filter layer are positioned one above the other, creating a multi-functional filtering system that prevents both sediment and maintains flow rate. This segmentation approach improves filtering effectiveness while maintaining relatively simple device structure, as both layers are incorporated into a single integrated filter assembly.
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 effectively reduces beverage spattering and sediment in the brewed beverage, enhancing the taste and appearance by controlling the flow and filtering process.
Implementation Method 1
The slits may be arranged to stagger the first pathway to control the flow of beverage exiting the distal end of the filter
Implementation Method 2
The filter has a distal end where the extracted beverage may exit the filter. The distal end of the filter may have at least one retainer wall with slits between the distal end of the filter and the distal end of the pod
Data Source
AI summary
A single-serve pod brews a beverage and drains the beverage from the pod without being obstructed by the brewing mechanism to substantially avoid contaminating the beverage and brewing mechanism. The pod has a proximal end and a distal end, where the heated water enters the pod in the proximal end to extract the beverage from the beverage ingredient within the filter and the beverage exits through the distal end of filter where the flow of the beverage is controlled by one or more retainer walls to slow the flow of beverage along the distal end of the pod, and the beverage is redirected to flow towards the proximal end of the pod where it drains between a gap formed during the brewing process.