Beverage Frothing Ejector with Temperature-Based Steam and Air Control
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Solution Overview
Problem
Existing beverage frothing technologies often fail to maintain consistent frothing quality and are difficult to use and maintain, as they require manual operation and lack efficient temperature control for delivering steam and air.
Innovation Solution
A method and apparatus that control the delivery of steam and air to a beverage based on temperature, providing a mixture of air and steam below a first temperature and only steam above it, using an ejector with a steam and air supply system and a controller to regulate flow, and allowing for easy disassembly and cleaning.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If manual operation is used for beverage frothing, then device complexity is reduced, but frothing consistency and quality deteriorate
Solution Approach 1:
The system automatically controls steam and air delivery based on temperature sensor feedback, eliminating the need for manual operation while maintaining consistent frothing quality. The controller autonomously adjusts parameters based on sensed temperature, making the system self-regulating and reliable.
2Device complexity
If temperature control is not implemented, then device complexity is reduced, but energy efficiency and frothing quality deteriorate
Solution Approach 1:
A temperature sensor provides continuous feedback to the controller, which automatically adjusts steam and air delivery to maintain optimal frothing conditions. This closed-loop control ensures energy efficiency by delivering steam and air only when and as needed, rather than requiring complex manual temperature monitoring and adjustment.
3Productivity
If steam and air are delivered simultaneously throughout the process, then frothing speed is improved, but temperature control precision and frothing quality deteriorate
Solution Approach 1:
The system dynamically adjusts the delivery of steam and air based on real-time temperature sensing. The controller modulates the proportion of steam versus air delivered at different stages of heating, enabling both rapid frothing and precise temperature control by adapting parameters continuously rather than maintaining fixed settings.
4Device complexity
If the ejector design is fixed and non-disassemblable, then device complexity is reduced, but ease of maintenance and cleaning deteriorate
Solution Approach 1:
The ejector is designed as a segmented, disassemblable structure with separate components including the nozzle, mixing chamber, and outlet sections. This segmentation allows individual parts to be removed and cleaned independently, maintaining simple overall design while enabling thorough maintenance and cleaning of internal passages and surfaces.
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 approach ensures consistent frothing quality and simplifies the frothing process for both trained and untrained users, allowing for high-quality frothed beverages and easy maintenance of the frothing device.
Implementation Method 1
Air may be drawn into the air inlet by a venturi or low-pressure vacuum caused by steam emitted from the steam nozzle
Implementation Method 2
steam flow causes air to be drawn into the ejector by a pressure drop caused by steam flow through the ejector
Implementation Method 3
a mixture of air and steam exits the ejector outlet and into the beverage liquid
Data Source
AI summary
A method and apparatus for frothing a beverage, e.g., using a beverage preparing device and an ejector is described. Within a housing of the beverage preparing device, an air supply and steam supply may be arranged to deliver air and steam to an ejector outside of the housing. Beverage liquid may be frothed by providing steam and air, then steam alone to achieve frothing and heating. An ejector may supply a mixture of steam and air and a controller may be used to regulate the flow of steam and air through the ejector. The ejector may have a venturi that uses steam flow to create a low pressure region, which draws air into the ejector.