Fluid-Driven Stirring Apparatus to Reduce Motor Complexity and Cost
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Solution Overview
Problem
Current milk foaming machines driven electromechanically are complex, costly to produce, and require a power supply, limiting their efficiency and accessibility.
Innovation Solution
A fluid-driven stirring apparatus that uses a fluid source, such as high temperature steam, to rotate a driving impeller and stir member, eliminating the need for a motor and allowing for adjustable flow to optimize foaming without electricity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an electromechanical motor is used to drive the stirring paddle, then the stirring function is reliable, but the device complexity and production cost increase
Solution Approach 1:
The patent removes the motor and electromechanical driving system from the milk foaming machine, extracting only the essential stirring function. The fluid-driven impeller replaces the motor-driven paddle, eliminating complex electrical components while maintaining the core stirring capability needed for reliable operation.
Solution Approach 2:
The fluid-driven stirring system uses the milk flow itself to drive the impeller, making the fluid serve dual purposes: both as the medium to be stirred and as the power source. This self-service mechanism eliminates the need for external motors and complex control systems, reducing device complexity while ensuring reliable stirring through the natural kinetic energy of the flowing milk.
2Power
If an electromechanical motor is used to drive the stirring paddle, then the stirring power is sufficient, but the production cost increases
Solution Approach 1:
The patent employs a fluid-driven hydraulic system where pressurized milk or water flows through a nozzle to rotate the impeller. This hydraulic driving mechanism provides sufficient stirring power to effectively foam milk while using simple, inexpensive components such as nozzles, impellers, and chambers, significantly reducing production costs compared to electromechanical motors.
Solution Approach 2:
The patent replicates the essential function of a motor-driven system using a simpler fluid dynamic mechanism. The impeller design copies the stirring action of traditional paddles but achieves it through fluid pressure and flow rather than electrical motors, maintaining adequate stirring power while dramatically simplifying manufacturing and reducing costs.
3Speed
If a motor is installed in the milk foaming machine, then the stirring speed is controllable, but the structure becomes complex and difficult to assemble
Solution Approach 1:
The patent implements a dynamic fluid-driven system where the impeller speed automatically adjusts according to the flow rate and pressure of the incoming milk or water. This dynamic response eliminates the need for motors, gearboxes, and electronic speed controllers, resulting in a simple structure that is easy to assemble and maintain while providing adequate stirring speed variation through natural flow conditions.
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 fluid-driven apparatus simplifies the structure, reduces production costs, and enables energy-efficient milk foaming with adjustable stirring speed, producing finer and more uniform foam.
Implementation Method 1
a driving impeller arranged in the fluid chamber, a stirring shaft fixedly connected with the driving impeller and extending through the fluid chamber into the container... the fluid drives the driving impeller to rotate the stirring shaft
Data Source
AI summary
A fluid-driven stirring apparatus includes a fluid introduction passageway, a fluid chamber connectable to the fluid introduction passageway, a container for accommodating liquid to be stirred, and a stirring assembly. The stirring assembly includes a driving impeller arranged in the fluid chamber, a stirring shaft fixedly connected with the driving impeller and extending through the fluid chamber into the container, and a stirring member arranged on the stirring shaft and adjacent to the bottom of the container. Thus, the fluid drives the driving impeller to rotate the stirring shaft, so that the stirring member can stir the liquid in the container.