Beverage Brewer Pump Circulation Design to Reduce Cold-Brew Time
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Solution Overview
Problem
Conventional cold-brew brewing systems are inefficient due to the need for longer brewing times and require complex setups with large footprints, making them difficult to clean and prone to bacterial contamination.
Innovation Solution
A compact beverage brewer that includes a pump assembly, intake and outflow tube assemblies, a brewing material holder, and a container volume, which uses a fluid feed to increase brewing liquid flow and includes features for easy cleaning and portability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If cold brewing is performed by submerging brewing material in unheated water, then the desired flavor and avoidance of bitterness are achieved, but the brewing time becomes much longer than hot brewing
Solution Approach 1:
The pump assembly circulates brewing liquid through the brewing material in periodic cycles, repeatedly passing fresh liquid through the grounds to accelerate extraction. This periodic circulation replaces the static steeping method, maintaining flavor quality while dramatically reducing brewing time from hours to minutes.
Solution Approach 2:
The system uses a pump assembly to create hydraulic flow, forcing brewing liquid through the brewing material at controlled rates. This hydraulic action accelerates the extraction process compared to passive steeping, resolving the time-quality tradeoff by using fluid dynamics to enhance mass transfer.
2Loss of time
If conventional cold-brew systems use gravity feed percolator action, then brewing time is reduced somewhat, but the device footprint becomes large and counter space is consumed
Solution Approach 1:
The serving vessel and brewing chamber are merged into a single integrated unit. The pump assembly draws liquid from the serving vessel and returns it through the brewing material, eliminating the need for separate reservoir and brewing chambers. This consolidation maintains rapid brewing while minimizing device footprint for counter space efficiency.
Solution Approach 2:
The serving vessel serves dual functions: as the liquid reservoir and as the brewing chamber. This multi-functionality eliminates redundant components, reducing overall device size while maintaining the rapid brewing capability provided by the pump-driven circulation system.
3Productivity
If conventional cold-brew systems use external motorized systems for gravity action, then brewing speed is improved, but the system complexity increases and cleaning becomes difficult
Solution Approach 1:
The pump assembly and brewing chamber are integrated into a single unit with no external motors or complex mechanisms. The pump is positioned within the brewing assembly itself, creating a simple, self-contained system that is both fast and easy to clean, eliminating the complexity of external motorized gravity systems.
Solution Approach 2:
The pump assembly is designed to be easily removable and rinsable, allowing users to quickly clean the brewing system themselves without disassembling complex mechanisms. The simple integrated design enables self-service cleaning, reducing system complexity while maintaining high brewing speed.
4Adaptability or versatility
If conventional cold-brew systems use separate reservoir and dispensing containers, then brewing functionality is provided, but the device size and complexity increase
Solution Approach 1:
The serving vessel and brewing chamber are merged into one component, eliminating the need for separate reservoir and dispensing containers. The pump assembly enables the single vessel to perform both storage and brewing functions, maintaining full brewing functionality while halving the device volume.
Solution Approach 2:
The serving vessel is designed to serve multiple functions: storing brewing liquid, acting as the brewing chamber, and dispensing the finished beverage. This universal design provides complete brewing functionality in a single compact unit, eliminating the need for multiple separate components.
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
The system significantly reduces cold-brewing time, provides a compact and portable design, and ensures easy cleaning and reduced risk of bacterial contamination, offering a versatile brewing solution for both hot and cold beverages.
Implementation Method 1
The pump assembly is configured to draw fluid from within the container volume through the intake tube assembly and to issue the fluid into the brewing material holder assembly through the outflow tube assembly
Data Source
AI summary
A beverage brewer includes a pump, intake tube and outflow tubes, a brewing material holder, and a container. The intake tube is connected to an inlet port of the pump. The outflow tube is connected to an outlet port of the pump. The brewing material holder is configured to hold brewing material at an issue end of the outflow tube. The container is arranged at an issue portion of the brewing material holder. A suction end of the intake tube is arranged for fluid communication with an interior of the container. The pump is configured to draw fluid from within the container through the intake tube and to issue the fluid into the brewing material holder through the outflow tube, to brew a beverage in the brewing material holder and issue the brewed beverage into the container. At least a portion of the intake tube is attached to the container.