Method for brewing coffee
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Solution Overview
Problem
Conventional coffee machines with elastic piston mechanisms for adjusting pressure based on coffee volume in the dispensing chamber do not provide optimal coffee quality across varying coffee volumes, as the variable pressure is not optimal for all amounts of coffee.
Innovation Solution
A method and machine that adjust the piston's position based on the amount of ground coffee in the dispensing chamber, using a motor and position detector to ensure consistent pressure and calibration for optimal flavor and aroma, with steps for prior infusion, dispensing, and pressure release, allowing for personalized coffee intensity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If elastic means (spring) are used to variable the pressure applied by the piston on the ground coffee, then the pressure can be adjusted depending on the amount of ground coffee present inside the dispensing chamber, but the pressure is not optimal for all possible volumes of coffee, thus not providing the best quality of the coffee brewed
Solution Approach 1:
The patent replaces the elastic spring mechanism with a motor-driven piston system controlled by a control unit. The motor can precisely position the piston at different heights based on detected coffee volume, eliminating the limitations of elastic pressure adaptation and enabling optimal pressure control for various coffee volumes.
Solution Approach 2:
The control unit varies the piston position (height) as a parameter to optimize the brewing process for different coffee volumes. By changing the piston position rather than relying on elastic force variations, the system achieves better pressure control and coffee quality across different volumes.
2Adaptability or versatility
If the volume of coffee inside the dispensing chamber varies based on user taste preferences, then the coffee intensity can be adapted to personal tastes, but the pressure applied by the piston must be adjusted to said amount of coffee to maintain adequate quality
Solution Approach 1:
The system uses a sensor to detect the volume of ground coffee in the dispensing chamber and provides feedback to the control unit. Based on this feedback, the control unit automatically adjusts the piston position to the optimal height, enabling adaptive pressure control without requiring complex manual adjustments.
Solution Approach 2:
The system performs self-adjustment of the piston position based on the detected coffee volume. The control unit automatically determines the optimal piston height and positions the motor accordingly, eliminating the need for manual intervention and simplifying the user interface while maintaining optimal brewing conditions.
Data Source
AI summary
The method includes the steps of loading ground coffee in a dispensing chamber; pressing said ground coffee present in the dispensing chamber by means of a piston (1) for the compaction thereof; dispensing the ground coffee; supplying the brewed coffee to a user; and determining if the position of the piston (1) varies depending on the amount of ground coffee that is loaded in said dispensing chamber.