Centrifugal Coffee Capsule Flow Restriction for Consistent Extraction
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Solution Overview
Problem
Existing centrifugal coffee preparation devices require manual handling and lack control over coffee dosage and freshness, leading to inconsistent cup quality and commercial underperformance.
Innovation Solution
A system featuring a removable, single-use capsule with a flow restriction mechanism that creates a pressure drop during centrifugation, allowing controlled release of the coffee liquid and improved interaction between water and coffee grounds, enhancing extraction and foam creation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual dosing of coffee powder in a non-removable receptacle is used, then device complexity is reduced, but manufacturing precision of dosage and freshness control deteriorates
Solution Approach 1:
The system divides the coffee preparation system into separate components: a removable capsule containing pre-dosed coffee powder and a holder that receives the capsule. This segmentation allows precise factory dosing in the capsule while keeping the brewing device simple.
Solution Approach 2:
Coffee powder is pre-dosed and sealed in capsules during manufacturing before use. This preliminary action ensures precise dosage control without requiring complex dosing mechanisms in the brewing device.
2Ease of operation
If manual handling and scraping of coffee waste is required, then ease of operation deteriorates, but loss of time increases
Solution Approach 1:
The used capsule with coffee waste is easily removed from the holder as a complete unit. This extraction principle eliminates the need for manual scraping of waste from the brewing chamber, significantly reducing preparation time and improving ease of operation.
Solution Approach 2:
The system uses disposable capsules that are discarded after single use. This eliminates the need for cleaning and waste removal operations, making the process extremely convenient and time-efficient.
3Ease of operation
If centrifugal brewing without flow restriction is used, then ease of operation is maintained, but manufacturing precision of extraction parameters deteriorates
Solution Approach 1:
A flow restriction element is introduced as an intermediary component in the brewing system. This element mediates between the simple centrifugal brewing mechanism and the need for precise extraction parameters, creating consistent pressure drops that ensure repeatable coffee quality.
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 system provides better control over coffee quality parameters, improving the in-cup quality and convenience by ensuring accurate dosage and freshness, resulting in more reproducible and creamy coffee brews with higher solid content.
Implementation Method 1
preparing a food liquid from a food substance contained in a receptacle by passing water through the substance using centrifugal forces
Implementation Method 2
a flow restriction means is arranged in the flow path of the centrifuged liquid capable of providing a certain pressure drop during centrifugation
Data Source
AI summary
Method for preparing a food liquid from a food substance contained in a receptacle by passing water through the substance using centrifugal forces comprising:driving the receptacle in centrifugal rotation while introducing water in the capsule,passing water through the substance to form a food liquid,collecting the centrifuged food liquid,wherein the receptacle is a single-use capsule and,a flow restriction means is arranged within the flow path of the centrifuged liquid.