Coffee Machine Valve Segmentation for Foam and Liquid Transfer
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Solution Overview
Problem
Existing coffee machines using single-use capsules struggle to transfer coffee foam to a cup effectively, often leaving it behind due to complex valve geometries, which complicates cleaning and affects user satisfaction.
Innovation Solution
A coffee machine design featuring a valve with a lower part and an upper part that can move separately and together, utilizing an actuator to open and close, allowing foam to pass through a channel while the coffee is transferred through a pouring port, using mechanisms like chains, guides, and pistons to facilitate seamless foam and coffee transfer without splashing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a complex geometric structure valve is used, then the valve can control coffee transfer, but the foam remains on the valve and drying of the foam adversely affects liquid transfer
Solution Approach 1:
The valve is divided into a lower part and an upper part that can move relative to each other. The upper part is displaceable upward relative to the lower part, creating a variable geometry channel that separates foam transfer and liquid transfer phases, thereby preventing foam accumulation while maintaining reliable coffee transfer.
2Reliability
If a complex geometric structure valve is used, then the valve can control coffee transfer, but ease of cleaning is reduced
Solution Approach 1:
The valve is segmented into movable upper and lower parts with a simplified geometry. The channel connects a pouring port at the upper end with an outlet at the lower end, creating a straightforward flow path that is easy to clean while still providing effective coffee transfer control through the relative displacement mechanism.
3Extent of automation
If the brewing chamber is rotated for automatic transfer, then coffee can be transferred to the cup, but an extra movement mechanism is required
Solution Approach 1:
The valve transitions from a static structure to a dynamic one where the upper part can be displaced upward relative to the lower part. This dynamic geometry change enables automatic coffee and foam transfer through pressure differential created during brewing, eliminating the need for brewing chamber rotation while maintaining automation.
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 efficient transfer of coffee and its foam to a cup without leaving residue, simplifying the cleaning process and improving user satisfaction by using a simple geometric structure that separates and reunites valve components to manage the transfer effectively.
Implementation Method 1
as the upper part moves upwards and gets separated from the lower part, the channel opens and the foam on the coffee is transferred into the cup through the channel
Implementation Method 2
the lower part and the upper part are connected to each other by means of a chain. By selecting the length of the chain long enough, the upper part is enabled to be move by itself first as the upper part is pulled upwards. When the chain is stretched, the lower part is also enabled to move
Implementation Method 3
a piston that is movably positioned in the upper part is used, wherein the piston passes through the lower part, when the upper part is seated onto the lower part, so as to apply pressure onto the pouring port to close the pouring port
Data Source
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AI summary
The present invention relates to a coffee machine (1) comprising a body (2), a brewing chamber (3) that is disposed in the body (2) and wherein the coffee is mixed with water and brewed, and a pouring port (4) disposed at the base of the brewing chamber (3).