Capsule Clamp Assembly With Resilient Piston for High-Pressure Extraction
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Solution Overview
Problem
Current beverage dispensing systems are inadequate for preparing premium beverages like espresso coffee, as they cannot handle high-pressure water injection, leading to incomplete extraction and cross-contamination issues.
Innovation Solution
A beverage preparation capsule with a V-folded filter strip and a clamp assembly that allows for high-pressure water injection, ensuring uniform extraction and preventing cross-contamination by using flexible walls and a resilient layer to compress the capsule contents.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high-pressure water injection is used to prepare premium beverages like espresso coffee, then extraction efficiency and beverage quality are improved, but the risk of cross-contamination and incomplete extraction increases due to system inadequacies
Solution Approach 1:
The brewing system is segmented into separate compartments: a first brewing chamber for high-pressure espresso preparation and a second brewing chamber for low-pressure beverage preparation. This physical segmentation prevents cross-contamination between different brewing types while allowing each chamber to operate at its optimal pressure level, thereby maintaining both extraction efficiency and reliability
Solution Approach 2:
A valve mechanism acts as an intermediary control element that regulates water flow and pressure between the pump system and the brewing chambers. This intermediary component enables precise control over pressure delivery, ensuring that high-pressure extraction for espresso does not compromise the integrity of the brewing process or lead to cross-contamination
2Productivity
If high-pressure water injection is used for espresso preparation, then beverage quality improves, but the system complexity and difficulty of operation increase
Solution Approach 1:
The system incorporates a dynamically adjustable valve mechanism that can automatically regulate water pressure and flow rate based on the selected brewing mode. This dynamic control allows the system to switch between high-pressure espresso brewing and low-pressure beverage preparation without requiring manual pressure adjustments, thereby maintaining beverage quality while simplifying operation
Solution Approach 2:
The brewing system is designed with multi-functionality, incorporating both high-pressure and low-pressure brewing capabilities within a single apparatus. The valve mechanism and pump system can adapt to different brewing requirements, allowing the system to perform multiple functions (espresso and other beverages) without requiring separate equipment, thus improving beverage quality while maintaining ease of operation
3Productivity
If a folded web filter is used in the brewing chamber, then beverage filtration is improved, but the filter may separate from the pack under high pressure
Solution Approach 1:
The filter is designed as a flexible folded web structure that can deform and conform to the brewing chamber under high pressure. This flexible film design allows the filter to maintain its filtration function while adapting to pressure changes, preventing separation from the pack while improving beverage filtration through increased contact area and flexibility
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 enables the preparation of high-quality beverages under high pressure without cross-contamination, improving the extraction efficiency and reducing waste by ensuring uniform exposure of the beverage preparation material to the liquid.
Implementation Method 1
the beverage making ingredient dissolves in, or infuses into, the water to form the beverage
Implementation Method 2
a pump to inject the hot water through the injector tube into the capsule
Implementation Method 3
The capsule may incorporate a filter to prevent passage of solid components such as coffee grounds out of the capsule
Implementation Method 4
the bottom seam 120 of the capsule 100 opens under the effect of heat and liquid pressure
Implementation Method 5
the bottom seam 120 of the capsule 100 opens under the effect of heat and liquid pressure
Data Source
Figure 1~2b
Figure 3~6
Figure 7~8
AI summary
A beverage preparation apparatus for preparation of a beverage from a capsule in a clamp assembly (30). The clamp assembly has a first clamp member (31) and a second clamp member, where the inner surfaces of the first clamp member and the second clamp member form a clamp chamber (33) for substantially enclosing and supporting a capsule (10) during beverage preparation. The second clamp member comprises a rigid peripheral frame (32) having a central void and a resilient layer (37) extending across said central void. There is a piston (36) positioned in the central void and resiliently coupled to the peripheral frame (32) to allow limited resilient movement of the rigid peripheral frame (32) relative to the piston (36).