Espresso Outflow Distributor With Baffle Chambers for Even Cup Filling
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Solution Overview
Problem
Existing espresso coffee makers with outflow distributors face issues with uneven coffee distribution due to large air bubbles in the crema, which disrupt even filling of cups, particularly in designs for brewing with portioned capsules or pouches.
Innovation Solution
The outflow distributor incorporates a baffle wall in a baffle chamber to dampen pressure surges from crema valves, causing larger air bubbles to burst, and features cylindrical outflow bodies with centering thorns and perforated end sections to ensure uniform coffee flow and laminar outflow, maintaining a compact design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cap-shaped cover with passage openings is provided in the collector space to handle air bubbles, then the distribution of espresso is improved, but the filter carrier becomes voluminous and unsuitable for compact espresso coffee makers
Solution Approach 1:
The invention extracts the bubble-handling function from the collector space and relocates it to the outflow distributor. The baffle chamber is integrated into the outflow distributor body, separating the bubble damping function from the collection function, thereby enabling compact filter carrier design while maintaining reliable distribution.
Solution Approach 2:
The invention uses vertical dimension efficiently by directing coffee flow upward through the baffle chamber and then downward through the outflow channels. This vertical arrangement allows the baffle chamber to be integrated within the compact outflow distributor structure without increasing horizontal footprint.
2Device complexity
If the coffee flow is allowed to flow directly from the brew chamber to the cups, then the system remains simple, but large air bubbles disrupt even distribution and block outflow holes
Solution Approach 1:
The baffle chamber acts as an intermediary between the brew chamber and the cups. It receives the coffee flow containing air bubbles, allows bubbles to rise and burst against the baffle wall, and then delivers the calmed coffee flow to the outflow channels for even distribution.
Solution Approach 2:
The baffle chamber performs preliminary action by damping the coffee flow and removing large air bubbles before the coffee reaches the outflow channels. This preliminary treatment ensures that the subsequent distribution process is not disrupted by bubbles.
3Reliability
If the outflow distributor is designed to handle large air bubbles, then distribution uniformity is improved, but the compact design required for portioned capsule machines is compromised
Solution Approach 1:
The invention merges the bubble-handling function with the outflow distribution function by integrating the baffle chamber directly into the outflow distributor body. This combination allows the system to handle large air bubbles while maintaining the compact design required for portioned capsule machines.
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
This solution ensures uniform distribution of espresso into cups by calming the coffee flow and bursting larger air bubbles, achieving even filling and efficient coffee dispensing without increasing the filter carrier's volume.
Implementation Method 1
By the impact of the coffee flow, a partial flow from the partial outflow duct, against the baffle wall, a pressure surge caused by opening a crema valve in the brew unit is dampened
Implementation Method 2
larger air bubbles in the brewed coffee, or in the crema, respectively, will burst
Implementation Method 3
the smaller bubbles are embedded in the coffee, or crema, respectively, uniformly flowing down in a laminar manner
Implementation Method 4
one centering thorn each is advantageously provided in the outflow body at one of the upwardly directed end sections of the partial outflow ducts at the lower end
Data Source
AI summary
Based on an outflow distributor for espresso coffee makers comprising one common coffee inlet (2) and at least two partial outflow openings (19, 20) connected to it in a flow conducting manner, and flow dampening means disposed upstream of the partial outflow openings, brewed coffee is to be equally distributed over two cups while avoiding considerably differently-sized air bubbles. To this end, two partial outflow ducts (3, 4) branched off from the common coffee inlet (2) include an open end section (5, 6) each, which is directed in a baffle chamber (11, 12) each against a baffle wall (9, 10). One of the baffle chambers (11, 12) each is formed in one outflow body (7, 8) each which includes, in spaced relationship below said baffle wall (9, 10), one of the partial outflow openings (19, 20).