Inline Centrifugal Foaming Device for Adjustable Foam Density Control
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Solution Overview
Problem
Current solutions for producing high-quality food foams, such as milk foam, are complex, difficult to clean, and lack precision in controlling foam quality, making them unsuitable for home use and requiring frequent cleaning and complex configurations.
Innovation Solution
An inline fluid foaming device with a centrifugal pumping and foaming element that introduces air and fluid under controlled shear stress, featuring a magnetically driven disc with patterned surfaces for efficient foaming and a heating unit for temperature control, allowing for adjustable foam density and easy cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If traditional whisk-based foaming devices are used, then foam can be produced, but the process requires time, multiple manipulations, and frequent cleaning
Solution Approach 1:
The invention extracts the foaming function from traditional whisk-based devices and integrates it directly into the beverage dispensing nozzle. The foaming element is built into the nozzle structure, eliminating the need for separate whisk attachments and reducing cleaning requirements to simple nozzle maintenance.
Solution Approach 2:
The invention merges the foaming mechanism with the beverage dispensing system. The centrifugal foaming element is integrated into the nozzle assembly, combining the functions of beverage delivery and foam generation in a single unified structure, thereby eliminating separate cleaning steps.
2Measurement precision
If pressurized milk systems with static mixers or rotating whisks are used, then foam can be produced, but the regulation and control of foaming becomes complicated and imprecise
Solution Approach 1:
The invention replaces complex mechanical foaming systems (static mixers, rotating whisks) with a centrifugal pumping mechanism. The centrifugal force generated by the rotating element provides precise control over foam generation through a single parameter - rotational speed - eliminating the need for complex geometric configurations.
Solution Approach 2:
The invention controls foam quality by changing a single parameter - the rotational speed of the centrifugal element. This provides precise and repeatable control over foam characteristics without requiring adjustment of multiple mechanical components or complex system configurations.
3Ease of operation
If rotor-based dosing devices are used, then liquid can be conveyed and mixed with gas, but the foaming process becomes difficult to monitor and regulate
Solution Approach 1:
The invention incorporates sensors that monitor foam generation in real-time and provide feedback to the control system. This enables automatic adjustment of rotational speed and gas flow to maintain consistent foam quality, making the process both easy to operate and highly repeatable.
Solution Approach 2:
The invention uses a dynamically controllable centrifugal element whose rotational speed can be precisely adjusted and monitored. This dynamic control, combined with real-time feedback, enables precise regulation of the foaming process while maintaining ease of operation through automated control.
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 device provides superior quality foam with adjustable density, easy cleaning, and simplified operation, suitable for home use, enabling precise control over foaming processes and versatile beverage recipes.
Implementation Method 1
the foaming of the mixture is provided by driving it under a certain level of shear stress in the element
Implementation Method 2
a heating unit to where the foamed mixture of fluid and air is conveyed for its optional later heating
Data Source
AI summary
Inline fluid foaming device (10) for providing a foamed fluid directly into a container, the device (10) comprising an air path (120) for introducing a certain quantity of air into the device (10), and a fluid path (130) for introducing fluid into the device (10) coming from a fluid container (16), the mixture of air and fluid passing to a centrifugal pumping and foaming element (11) such that the amount of fluid into the device (10) is pumped by the centrifugal movement of the pumping and foaming element (11) and the foaming of the mixture is provided by driving it under a certain level of shear stress in the element (11), the device (10) further comprising a heating unit (14) to where the foamed mixture of fluid and air is conveyed for its optional later heating. The invention further relates to a beverage system comprising such an inline fluid foaming device (10) and a beverage dispensing machine.