Beverage Capsule Clamp Assembly for High-Pressure Brewing
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Solution Overview
Problem
Existing beverage dispensing systems are inadequate for preparing high-pressure beverages like espresso, as they cannot handle pressures greater than 5 bar without risking filter separation or cross-contamination, and they lack flexibility in coffee compaction and amount variation.
Innovation Solution
A clamp assembly with movable members that apply pressure pads to uniformly compress the capsule, allowing for high-pressure brewing without bursting and minimizing channelling, while maintaining a sealed system to prevent cross-contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If water is injected at high pressure (>5 bar) into the capsule, then espresso-quality beverages can be prepared, but the filter may separate from the capsule or the capsule may burst
Solution Approach 1:
The clamp assembly applies compression force to the capsule before water injection, pre-compressing the coffee bed and securing the filter web to the capsule base. This preliminary action prevents filter separation and capsule bursting during high-pressure water injection by ensuring the capsule structure is stabilized in advance
Solution Approach 2:
The system dynamically adjusts the compression force applied by the clamp assembly based on the selected beverage type. For espresso requiring high pressure (>5 bar), greater compression is applied to secure the filter and prevent bursting, while lower compression is used for other beverages, thereby adapting the capsule's structural parameters to match the injection pressure requirements
2Manufacturing precision
If the clamp assembly applies strong compression to the capsule, then liquid channelling is prevented and brewing quality improves, but the capsule may burst under high pressure
Solution Approach 1:
The clamp assembly applies controlled compression to the capsule before water injection, pre-compressing the coffee bed to eliminate channels and ensure uniform water distribution. This preliminary compression is calibrated to improve brewing quality without exceeding the capsule's structural limits, thereby preventing both channelling and bursting
Solution Approach 2:
The compression force is dynamically adjusted based on beverage type and capsule characteristics. For espresso requiring high extraction, stronger compression is applied to eliminate channelling, while the system monitors and limits the force to prevent capsule bursting, thereby optimizing the balance between brewing precision and structural integrity
3Power
If the clamp assembly is designed for high-pressure brewing, then espresso-quality beverages can be prepared, but the device complexity increases
Solution Approach 1:
The clamp assembly is designed to perform multiple functions: it secures the capsule, compresses the coffee bed, prevents filter separation, and withstands high injection pressures. By integrating these functions into a single multi-functional device rather than separate components, the system achieves high-pressure brewing capability without proportionally increasing overall device complexity
Solution Approach 2:
The clamp assembly incorporates movable compression elements that can dynamically adjust their position and force application based on the brewing requirements. This dynamic design allows the same structure to adapt to different beverage types and pressure requirements, reducing the need for multiple specialized components and thereby managing device complexity while maintaining high-pressure capability
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
Enables efficient and high-quality preparation of high-pressure beverages by ensuring uniform compression and preventing liquid channelling, while maintaining the cleanliness of the brewing apparatus.
Implementation Method 1
one or more pressure pads projecting from said concave base surface in a region proximate to said inlet region for selectively constricting a region of said capsule proximate to said inlet region
Data Source
Figure 1~2b
Figure 3~6
Figure 7~9C
AI summary
A clamp assembly for preparing a beverage from a beverage preparation capsule, the clamp assembly comprising two or more clamp members, wherein an inner wall of at least one of said clamp members comprises a concave base surface for receiving said capsule and one or more pressure pads projecting from said concave base surface for selectively constricting a region of said capsule. Also provided are a beverage preparation apparatus and system comprising the clamp assembly, and a method of preparing a beverage from the apparatus.