Sealed Centrifugal Coffee Capsule for Dosage-Controlled Extraction
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Solution Overview
Problem
Existing coffee brewing methods using centrifugal forces face challenges with manual handling, inconsistent coffee quality due to dosage and freshness control, and difficulty in mastering extraction parameters, leading to suboptimal brewing results and limited commercial success.
Innovation Solution
A sealed capsule system for brewing beverages using centrifugal forces, where a predetermined dose of food substance is contained within a gas-tight capsule that can be opened for water introduction, allowing for controlled brewing parameters such as rotational speed and uniform water distribution, resulting in improved crema quality and reproducibility.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If sealed capsules with predetermined doses are used, then manufacturing precision of dosage and freshness is improved, but device complexity increases due to capsule opening mechanisms
Solution Approach 1:
The brewing system is divided into separate components: a removable capsule holder that can be detached from the brewing chamber, allowing the capsule to be independently handled. This segmentation simplifies the overall device complexity while maintaining precise dosage control through pre-sealed capsules.
Solution Approach 2:
The capsule holder is extracted as a separate removable component from the brewing chamber. This allows the capsule opening and insertion process to be simplified and performed outside the main brewing mechanism, reducing the complexity of the integrated system while preserving dosage precision.
2Ease of manufacture
If manual handling and scraping of coffee waste is required, then ease of manufacture is improved, but productivity deteriorates due to time-consuming operations
Solution Approach 1:
The capsule holder is designed to enable easy self-service removal and disposal of used capsules by the user. The simple removable design allows quick ejection of spent capsules without requiring manual scraping or complex cleaning mechanisms, thus maintaining ease of manufacture while significantly improving brewing productivity.
3Reliability
If centrifugal brewing is used, then reliability of extraction parameter control is improved, but device complexity increases compared to simple pressure systems
Solution Approach 1:
The system uses dynamic centrifugal force generated by rotating the capsule holder at controlled speeds to achieve reliable extraction parameter control. The rotational speed can be varied to independently control water flow rate, contact time, and extraction pressure, providing reliable parameter control while using a relatively simple rotating mechanism rather than complex multi-component pressure systems.
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 method achieves higher coffee solids content and creamier crema compared to traditional espresso methods, with improved control over quality parameters like freshness and dosage, leading to more consistent and convenient brewing results.
Implementation Method 1
driving the receptacle in centrifugal rotation to force water to flow through the substance in a centrifugal flow path
Data Source
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AI summary
A method for preparing a beverage or liquid from a food substance contained in a filtering receptacle (3) by passing water through the substance using brewing centrifugal forces comprising: feeding water in the receptacle (3), driving the receptacle in centrifugal rotation to force water to flow through the substance in a centrifugal flow path to outlet means of the receptacle, wherein the receptacle is formed by a sealed capsule (3) before its use which is opened for water to be introduced in the capsule; said capsule containing a predetermined dose of food substance and being discarded after use.