Beverage Capsule Valve Structure for Reduced Dripping
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Solution Overview
Problem
Existing beverage production capsules face challenges in controlling extraction pressure and preventing residual liquid and solid leakage after the production process, leading to potential cross-contamination and loss of volatile ingredients during transport and storage.
Innovation Solution
A hermetically sealed capsule design with a pressure-activated valve system that blocks the flow path after the production process is complete, using internal or external control means to prevent air and liquid flow, and incorporating self-healing materials or capillary effects to minimize residual liquid loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a valve is added to control extraction pressure and reduce dripping, then beverage extraction quality and drip prevention improve, but device complexity increases
Solution Approach 1:
The valve means are integrated into the capsule structure, merging the sealing function with the capsule wall. The valve comprises a sealing element that is part of the capsule assembly, combining multiple functions (sealing, pressure control, drip prevention) into a single integrated component rather than adding separate external valves.
Solution Approach 2:
The valve means automatically respond to pressure changes within the capsule. The sealing element opens under pressure during extraction and closes when pressure drops, without requiring external control mechanisms. This self-regulating behavior simplifies the overall system while maintaining reliable pressure control.
2Stability of the object's composition
If the capsule is hermetically sealed, then ingredient freshness is maintained during transport and storage, but the capsule requires additional opening mechanisms before use
Solution Approach 1:
The capsule is pre-sealed in a hermetic state during manufacturing, preserving ingredient freshness from the start. The sealing structure is designed to remain intact during transport and storage, with the opening action deferred until the moment of use in the beverage preparation machine.
Solution Approach 2:
The opening function is extracted as a separate, simple mechanical action performed by the beverage preparation machine. The machine's piercing element creates an opening in the sealed capsule, separating the sealing function (maintained during storage) from the opening function (activated during use).
3Productivity
If air enters the capsule from the beverage outlet side, then residual liquid drainage is improved, but liquid and solid leakage from the water inlet side increases
Solution Approach 1:
The valve means convert the harmful effect of air entry into a beneficial controlled process. Air is allowed to enter the capsule during drainage to facilitate liquid removal, but the valve controls this air entry to prevent unwanted leakage of residual liquid and solids from the water inlet side. The potential harm of air-induced leakage is transformed into controlled drainage assistance.
Solution Approach 2:
The valve creates different flow conditions at different locations within the capsule. At the beverage outlet side, air can enter to facilitate drainage. At the water inlet side, the valve maintains sealing to prevent leakage. This localized control of flow properties allows beneficial drainage while preventing harmful leakage.
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 effectively reduces residual liquid and solid leakage, maintains ingredient freshness by minimizing exposure to ambiance during storage and transport, and prevents cross-contamination of beverage production machines by ensuring controlled extraction pressure and smooth beverage flow.
Implementation Method 1
The valve is designed to block the flow of beverage when the pressure is sufficiently reduced
Implementation Method 2
A lower face of the compartment is designed for the release of beverage out of the ingredient compartment under the effect of the pressure building up inside the ingredient compartment
Implementation Method 3
incorporating self-healing materials or capillary effects to minimize residual liquid loss
Data Source
Figure 1~2
Figure 3~4
Figure 5a~6c
AI summary
The invention relates to a capsule (1) containing ingredients for producing a beverage, wherein the ingredients are housed in a compartment (3), internal perforation means (5) are provided designed for opening the lower face (4) of the ingredient compartment (3) by having, caused by pressure inside ingredient compartment, the lower face act against the internal perforation means, the capsule being provided with valve means (15) arranged for selectively blocking the flow path from the lower face of the ingredient compartment to a beverage outlet (7) of the capsule.