Movable Brewing Cylinders for Compact Parallel Coffee Brewing
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Solution Overview
Problem
Existing coffee machines with stationary brewing cylinders suffer from heat transfer issues, where non-brewing coffee grounds are heated unnecessarily, and require significant space for axial movement of brewing and piston components, limiting efficiency and space utilization.
Innovation Solution
A device with movable brewing cylinders that transition between loading and brewing positions, allowing thermal insulation of the grinder and enabling parallel brewing processes, where multiple brewing cylinders can be independently moved between positions, with a loading station and grinders that can feed any brewing chamber, and valves for flexible coffee routing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the brewing cylinder is arranged in a stationary position, then the structure is simple and easy to manufacture, but the grinder cannot be sufficiently thermally insulated from the brewing cylinder causing unnecessary heating of coffee grounds
Solution Approach 1:
The brewing cylinder is made movable between loading position and brewing position rather than stationary. This dynamic arrangement allows the grinder to be thermally insulated during brewing while maintaining simple overall structure. The brewing cylinder can be moved axially to separate the heat source from the grinder when not in use.
Solution Approach 2:
The brewing cylinder is separated into distinct functional zones with thermal insulation barriers between the grinder and brewing chamber. This segmentation allows the grinder to be isolated from heat during brewing operations while maintaining manufacturing simplicity through modular design.
2Productivity
If both the brewing cylinder and pistons are moved in one axis, then the brewing process can be completed, but a relatively large amount of space is required in the direction of displacement
Solution Approach 1:
The piston movement is changed from purely axial (one-dimensional) to include radial or angular components. The piston can move in multiple dimensions to compress coffee and eject grounds without requiring the brewing cylinder to travel the full axial distance, thereby reducing the overall space requirement in the displacement direction.
Solution Approach 2:
The brewing cylinder and piston are made independently movable with different degrees of freedom. The piston can move radially or angularly within a compact space while the brewing cylinder moves axially for loading and brewing, allowing process completion in a smaller overall volume.
3Productivity
If multiple brewing cylinders are provided that can be moved independently between positions, then parallel brewing processes can overlap in time increasing efficiency, but the device complexity increases
Solution Approach 1:
Multiple brewing cylinders are designed with identical standardized structures and movement mechanisms. Each cylinder can independently perform loading, brewing, and ejection functions. This universality allows parallel operations while managing complexity through repetition of proven modular units rather than designing unique mechanisms for each cylinder.
Solution Approach 2:
Multiple brewing cylinders share common infrastructure including the grinder, control system, and support structure. The cylinders are merged into a coordinated system where they can operate in parallel but share resources, reducing overall device complexity compared to having completely separate independent units.
Data Source
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AI summary
An apparatus for producing coffee or other beverages has two brewing cylinders (2; 2') and brewing pistons (10, 11; 10', 11') which are movable in said brewing cylinders and which form a brewing chamber. A loading station is provided for loading the brewing chambers with ground coffee or the other media. One brewing cylinder (2; 2') can be moved in each case together with the associated brewing piston (10; 10') from a brewing position to the loading station (5) and back again, wherein said associated brewing piston (10; 10') can be removed for the disposal of the used coffee or medium from the brewing cylinder (2; 2'). The second brewing cylinder (2') can therefore be moved to the same loading station (5) as the first, and this therefore results in a simplification of the design of the apparatus.