Configuration of a cyclone assembly and surface cleaning apparatus having same
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Solution Overview
Problem
Cyclonic separators in vacuum cleaners face inefficiencies in separating particulate matter due to the proximity of the dirt collection chamber to the cyclone casing, which limits the separation efficiency.
Innovation Solution
The cyclone separator design positions the separated material collection chamber at least 0.5 inches away from the cyclone casing, with the collection chamber being exterior and surrounding portions of the cyclone casing, enhancing separation efficiency by allowing particulate matter to exit laterally through a spaced-out outlet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the dirt collection chamber is positioned adjacent to or within the cyclone casing, then the device complexity is reduced and manufacturing is simplified, but the separation efficiency deteriorates
Solution Approach 1:
The patent transitions from a two-dimensional planar arrangement where the collection chamber is adjacent to the cyclone to a three-dimensional configuration where the collection chamber surrounds the cyclone casing. This spatial reorganization in another dimension allows the collection chamber to be positioned at multiple locations around the cyclone, maintaining structural integration while ensuring sufficient distance from the cyclone outlet to preserve separation efficiency.
Solution Approach 2:
The patent implements a nested configuration where the separated material collection chamber surrounds the cyclone casing, with the cyclone positioned inside the collection chamber. This nesting arrangement allows both components to be integrated in a compact manner while maintaining the required spatial separation between the cyclone outlet and the collection chamber inlet, thus preserving separation efficiency without increasing overall device complexity.
2Volume of moving object
If the separated material collection chamber is positioned close to the cyclone casing, then the overall device size is reduced, but the separation efficiency deteriorates
Solution Approach 1:
The nested configuration allows the collection chamber to surround the cyclone casing, maximizing the use of internal space. This arrangement maintains compact overall device dimensions while ensuring that the collection chamber is positioned at sufficient distance from the cyclone outlet, as the surrounding structure naturally provides the required spatial separation without increasing external dimensions.
Solution Approach 2:
By transitioning to a three-dimensional surrounding configuration, the patent utilizes vertical and radial spaces around the cyclone casing. This allows the collection chamber to be positioned at multiple locations (above, below, and around the cyclone) at sufficient distances, maintaining compact device size while preserving separation efficiency through optimized spatial arrangement.
3Manufacturing precision
If the dirt collection chamber is integrated within the cyclone casing, then manufacturing precision requirements are reduced, but the separation efficiency deteriorates
Solution Approach 1:
The nested configuration where the collection chamber surrounds the cyclone casing allows for modular assembly with standardized interfaces. The cyclone assembly can be manufactured as a separate unit and then integrated into the collection chamber, reducing the need for high-precision integrated manufacturing while maintaining sufficient separation distances through design-standardized connection interfaces.
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 significantly enhances the separation efficiency of the cyclone separator by ensuring that heavier materials can exit efficiently through a separated material outlet, improving the overall cleaning process in vacuum cleaners.
Implementation Method 1
Cyclonic separators, including those used in vacuum cleaners are known in the art
Implementation Method 2
As the fluid travels through the cyclone chamber, it will rotate and heavier material (e.g. particulate matter) will exit the cyclone chamber via the separated material outlet
Data Source
AI summary
A cyclone separator useable in a surface cleaning apparatus comprises a cyclone casing defining a cyclone chamber and having first and second opposed ends and a sidewall extending between the first and second ends. A separated material collection chamber surrounds at least a portion of the cyclone chamber and is communication therewith via a separated material outlet. The separated material collection chamber is spaced at least about 0.5 inches from the cyclone chamber. In addition, the separated material collection chamber is spaced from the bottom of the cyclone by at least about 0.5 inches.