Closed-Loop Filter Cycling for Extended Automated Coffee Brewing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing filter-based infusion brewers require frequent manual intervention for maintenance, limiting the number of coffee portions that can be brewed before manual intervention is needed, due to the size of filter paper rolls and coffee grind waste containers.
Innovation Solution
A closed-loop filter system where a continuous loop of filter material is cycled around rotary shafts, allowing automated separation and disposal of used coffee grinds while presenting fresh filter material for subsequent brewing, with integrated cleaning mechanisms to maintain filter efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a roll of filter paper is used in traditional brewers, then the filter can be replaced after a limited number of brews, but the frequency of manual intervention increases and the brewing capacity is limited
Solution Approach 1:
The filter system transitions from a static roll that requires manual replacement to a dynamic continuous loop that automatically cycles through brewing, cleaning, and disposal phases. The filter loop continuously moves through different functional zones, enabling automated operation without manual intervention for extended periods.
Solution Approach 2:
The filter operates in a continuous loop rather than discrete replacements. The same filter material is repeatedly used through multiple brewing cycles, with automated cleaning and disposal phases ensuring continuous operation. This eliminates the interruption caused by manual filter changes and maximizes productivity.
2Extent of automation
If the filter loop is continuously cycled, then automated brewing is enabled, but the filter material must be cleaned and reused effectively
Solution Approach 1:
The filter loop is divided into distinct functional segments: a brewing section that contacts coffee grounds, a cleaning section that removes residue, and a disposal section. This segmentation allows each zone to perform its specific function optimally, with the cleaning section maintaining filter reliability for subsequent brewing cycles.
Solution Approach 2:
The filter loop acts as an intermediary carrier that transfers coffee grounds from the brewing chamber to the disposal container. By using the filter itself as the conveying mechanism, the system achieves automated operation while maintaining reliable separation between liquid coffee and solid grounds through the filter medium.
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
Reduces the frequency of manual maintenance by enabling the production of multiple coffee portions without manual intervention, extending the brewing cycle and maintaining filter cleanliness through automated cycling and cleaning processes.
Implementation Method 1
separating the corresponding infusion portion from used particulate matter across a closed loop filter
Implementation Method 2
the brewer uses a vacuum to assist gravity in bringing the infused water across the filter
Implementation Method 3
uses a vacuum to assist gravity in bringing the infused water across the filter
Data Source
AI summary
The infusion brewer has a filter path forming a continuous loop around a plurality of rotary shafts, the plurality of rotary shafts being operable to cycle a continuous loop filter along the filter path, the filter path having a steeping area; and an infusion enclosure having a bottom opening positionable into an infusion position against the continuous loop filter at the steeping area.