Plastic Espresso Boiler Structure for Low-Power Rapid Brewing
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Solution Overview
Problem
Existing brewing apparatuses for espresso are plagued by high power consumption, long heating times, heavy weight, and efficiency issues due to limestone deposits, which lead to increased maintenance and reduced hygienic quality.
Innovation Solution
A brewing apparatus made entirely of plastic, featuring a plastic boiler and pump unit, with a heating element and temperature control system that uses a plastic cover with microholes for efficient water flow, and a dispensing unit designed for single-dose pods, minimizing power consumption and maintenance while ensuring quick temperature attainment and improved sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If metal parts are used in the brewing apparatus, then structural strength and durability are improved, but weight increases and limestone deposits build up causing maintenance issues
Solution Approach 1:
The patent employs disposable plastic brewing chambers and filters that are discarded after single use. This eliminates the need for durable metal components that accumulate limestone deposits, reducing both weight and maintenance requirements while maintaining structural adequacy for the intended short-term application.
Solution Approach 2:
The invention changes the material parameter from metal to plastic for the brewing chamber and associated components. This material substitution reduces weight and prevents limestone deposition, though it requires designing for disposability or frequent replacement to compensate for reduced durability.
2Loss of time
If high power is used to heat water quickly, then heating time is reduced, but power consumption increases
Solution Approach 1:
The system maintains continuous heating of water in the reservoir, keeping it near brewing temperature at all times rather than heating only when needed. This eliminates the high-power spike required for rapid heating but increases baseline power consumption, trading peak power for continuous low-level heating.
Solution Approach 2:
Water is pre-heated in the reservoir before brewing occurs, and the system pre-positions heated water ready for immediate use. This preliminary heating action reduces the heating time during actual brewing operations, though it requires energy to maintain the pre-heated state.
3Stability of the object's composition
If metal components are used in the brewing path, then structural integrity is maintained, but limestone deposits reduce efficiency and increase maintenance
Solution Approach 1:
The patent employs disposable plastic brewing chambers and filters that are discarded after single use. This eliminates the need for durable metal components that accumulate limestone deposits, reducing both weight and maintenance requirements while maintaining structural adequacy for the intended short-term application.
Solution Approach 2:
The invention extracts the brewing function into separate disposable chambers and filters that are removed and discarded after use. This separation removes the source of limestone deposition from the permanent apparatus structure, eliminating maintenance issues while preserving the structural integrity of the reusable components.
4Reliability
If traditional sealing methods are used for pods, then sealing is achieved, but sealing effectiveness and convenience are reduced
Solution Approach 1:
The patent merges the sealing function into an integrated dispensing unit that combines the pod holder, seal, and ejection mechanism into a single automated assembly. This integration improves sealing reliability through consistent positioning and application, while enhancing convenience by eliminating manual sealing operations.
Solution Approach 2:
The dispensing unit performs sealing automatically without user intervention. The system self-positions the pod, applies the seal through integrated mechanisms, and later self-ejects the spent pod. This automation improves both sealing consistency and operational convenience.
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 achieves low power consumption, rapid temperature achievement, reduced weight, and lower industrialization costs, eliminating maintenance issues and enhancing hygienic quality by preventing limestone deposits, while providing a convenient and efficient infusion process.
Implementation Method 1
a pump to draw water from a tank and feed it under pressure through a previously electrically heated heating element
Implementation Method 2
a pump to draw water from a tank and feed it under pressure
Implementation Method 3
a plastic cover with microholes for efficient water flow
Data Source
Figure 1~3
Figure 4~5
Figure 6~6A
AI summary
A brewing apparatus (1,101) for making infusions, particularly espresso, of the type comprising a pumping unit (2,102) for pumping water from a tank (3,103) to a water superheating boiler (6,106), wherein the boiler (6,106) has a lower container (11,111) closed at its top by a perforated cover (12,112) allowing superheated water to flow into the lower container under pressure, said lower container (11,111) and top cover (12,112) being formed of a plastic material. The brewing process includes a first step in which water is fed and pumped at a first feed velocity, a second step in which said velocity is increased to increase pressure in the chamber; said first velocity being lower than said second velocity. The upper boiler body (112) has the closing face (112a) of such a shape as to receive a corresponding single-dose pod (100) packed in paper, aluminum or another biodegradable material containing coffee or another flavor base in general.