Adjustable Shear Stress Atomization via Axial Stator Movement

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Solution Overview

Problem

Conventional atomization devices are unable to adjust the shear stress applied to the object being atomized due to a fixed relative position between the rotary impeller and the intermediate layer member, limiting their efficiency and versatility.

Innovation Solution

An atomization device with a rotor and stator that are relatively movable along the axial direction, allowing for adjustment of the shear stress by changing their relative position, which includes multiple concentrically disposed cylinder portions with through-holes in the rotor and stator, enabling the device to operate in both high and low shearing modes.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the relative position between the rotary impeller and the intermediate layer member is fixed, then the device structure is simple, but the shear stress applied to the object cannot be adjusted

Engineering Contradiction:
Improveadjustability of shear stressVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The stator is designed to be movable relative to the rotor along the axial direction, transforming the fixed structure into a dynamic one. This allows the gap between the rotor and stator to be adjusted, thereby changing the shear stress applied to the object being atomized, while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

2Productivity

If the stator is made movable to adjust shear stress, then atomization performance is enhanced, but device complexity increases

Engineering Contradiction:
Improveatomization performanceVSAvoidmechanism complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The stator is designed to be movable relative to the rotor along the axial direction, transforming the fixed structure into a dynamic one. This allows the gap between the rotor and stator to be adjusted, thereby changing the shear stress applied to the object being atomized, while maintaining a relatively simple overall structure.

Inventive Principle:
Principle #15Dynamics

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 design allows for adjustable shear stress, enhancing atomization performance and versatility, reducing atomization variations, and preventing contamination by maintaining a closed system, while also suppressing bubbling during dissolution.

Implementation Method 1

by changing the relative position between the rotor and the stator, it is possible to adjust the shear stress applied to an object to be atomized

Methodology Applied
Scientific EffectShear stress: Shear Stress

Data Source

PatentUS11318433B2Atomization device
Publication Date: 2022.05.03 MEIJI CO LTD
  • US11318433B2 patent drawing
  • US11318433B2 patent drawing
  • US11318433B2 patent drawing

AI summary

An atomization device 1 comprises a casing 2, a rotor 3 disposed rotatably with respect to the casing 2, and a stator 4 disposed on the same axis line with the rotor 3. The rotor 3 includes a first rotor cylinder portion 33 and a second rotor cylinder portion 34 which have a plurality of through-holes provided in peripheral walls thereof and which are disposed concentrically. The stator 4 includes a main-stator cylinder portion 42 and an inside sub-stator cylinder portion 43 which have a plurality of through-holes provided in peripheral walls thereof and which are disposed concentrically. The rotor 3 is fixedly positioned with respect to the casing 2. The stator 4 is movable by a lifting/lowering means 7 in the axial line L direction.