Gravity-Fed Brewing Chamber Layout to Prevent Capsule Leakage
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Solution Overview
Problem
Existing brewing devices are not suitable for making tea as they operate at high pressure, damage capsules during the brewing process, and can lead to leakage and contamination, while devices that work without pressure often result in poor tea preparation due to inadequate brewing time and water flow.
Innovation Solution
A device with a brewing chamber that positions capsules laterally and introduces hot water from the top, allowing for gravity-driven brewing without pressure, featuring a large brewing chamber volume and a sieve system to prevent damage and facilitate cleaning, along with a drive mechanism for capsule ejection and chamber movement for rinsing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high pressure is used for brewing, then extraction efficiency is improved, but capsule damage and leakage occur
Solution Approach 1:
The patent applies hydraulic principles by using gravity-driven water flow instead of high pressure. The brewing chamber is positioned above the capsule, allowing hot water to flow downward through the capsule contents via gravitational force, achieving effective extraction without compromising capsule integrity.
Solution Approach 2:
The patent inverts the traditional brewing approach by positioning the brewing chamber above the capsule rather than below. This inversion allows water to flow downward through the capsule, utilizing gravity to provide sufficient flow rate and extraction efficiency without requiring high pressure that would damage the capsule.
2Productivity
If capsule is pierced for brewing, then water flow through capsule is improved, but leakage currents and contamination occur
Solution Approach 1:
The patent converts the potential harm of high pressure into a benefit by using gravity-driven flow. The gravitational force provides sufficient driving force for water to pass through the intact capsule at an optimized rate, eliminating the need to pierce the capsule while still achieving effective water flow and extraction.
3Duration of action of moving object
If brewing chamber volume is increased, then brewing time and tea swelling space are improved, but device size increases
Solution Approach 1:
The patent utilizes the vertical dimension by positioning the brewing chamber above the capsule. This vertical arrangement allows a relatively compact device footprint while providing sufficient brewing chamber volume for extended brewing times and tea swelling, as the chamber can extend vertically rather than requiring large horizontal space.
4Productivity
If capsule is positioned at top inlet, then water flow through capsule is improved, but capsule damage occurs
Solution Approach 1:
The patent creates a gravity-driven flow system where the brewing chamber is positioned at a higher elevation than the capsule. This elevation difference establishes a gravitational potential gradient that drives water flow through the capsule at an optimized rate without requiring high pressure that would damage the capsule.
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 the preparation of tea and other brewed beverages with optimized water flow and reduced risk of capsule damage, leakage, and contamination, while simplifying handling and cleaning, and allowing for varied brewing volumes and times.
Implementation Method 1
a positioning device for positioning a capsule with an ingredient for brewing a beverage at a lateral opening of the brewing chamber
Implementation Method 2
Hot water can be introduced via the inlet at the top of the brewing chamber so that the capsule can be used for the brewing process without damage
Data Source
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AI summary
An apparatus for preparing a brewed beverage comprises a device (10, 11) for heating and delivering water, a brewing chamber (6), into which the heated water is introduced, a positioning device (19) for positioning a capsule (15), with contents for brewing the beverage, at a lateral opening of the brewing chamber (6), and an outlet (22) with a switchable valve (23) on an underside of the brewing chamber (6), wherein an inlet for introducing the hot water is provided on an upper side of the brewing chamber (6). The invention also relates to a method for preparing a brewed beverage, the intention being for leakage in the region of an inlet of the brewing chamber to be reliably avoided.