Cyclonic Separator Duct Layout for Compact Two-Stage Filtration
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Solution Overview
Problem
Conventional cyclonic separators in vacuum cleaners often have tortuous ducting paths due to the relative locations of the cleaner head, cyclonic separator, and suction source, which affects performance and requires external ducting, increasing size and complexity.
Innovation Solution
A cyclonic separator design where the inlet and outlet ducts are surrounded by the dirt collection chamber, allowing them to extend through the cyclonic separator, reducing the need for external ducting and enabling a more compact, efficient design with improved fluid paths and separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the inlet and outlet ducts are located at the upper part of the cyclonic separator as in conventional designs, then the cyclonic separator can be constructed with standard configurations, but the ducting paths become tortuous and the overall size increases
Solution Approach 1:
The inlet and outlet ducts are repositioned from the upper part to the base of the cyclonic separator, fundamentally changing the spatial arrangement. This dimensional repositioning allows the ducts to pass through the interior of the cyclonic separator in a straight line, eliminating tortuous paths and reducing the overall device volume while maintaining functional effectiveness.
2Ease of operation
If external ducting is used to connect the cleaner head and suction source to the cyclonic separator, then the cyclonic separator can be designed with standard inlet/outlet locations, but the vacuum cleaner size and weight increase
Solution Approach 1:
The inlet and outlet ducts are merged with the cyclonic separator structure itself, with the ducts passing through the interior of the separator. This integration eliminates the need for separate external ducting components, reducing overall weight while improving fluid flow efficiency by creating direct, tortuous-free paths from the cleaner head and suction source to the cyclonic separator.
3Reliability
If the first dirt collection chamber is enlarged to improve separation efficiency, then larger dirt particles can be collected more effectively, but the overall cyclonic separator size increases
Solution Approach 1:
The inlet and outlet ducts are nested within the first dirt collection chamber, passing through its interior space. This nesting arrangement allows the ducts to occupy the internal volume of the chamber rather than requiring additional external space, enabling the first dirt collection chamber to be enlarged for improved separation efficiency while maintaining a compact overall cyclonic separator size.
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 results in a more compact and efficient cyclonic separator with reduced tortuosity in ducting paths, enhancing vacuum cleaner performance and stability, while minimizing material usage and cost.
Implementation Method 1
a first cyclone stage having a first dirt collection chamber; a second cyclone stage located downstream of the first cyclone stage and having a second dirt collection chamber
Data Source
Figure 1
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AI summary
A cyclonic separator (4) comprising a first cyclone stage, a second cyclone stage, an inlet duct, and an outlet duct. The first cyclone stage comprises a first dirt collection chamber. The second cyclone stage is located downstream of the first cyclone stage and comprises a second dirt collection chamber. The inlet duct (13) carries fluid to the first cyclone stage, and the outlet (14) duct carries fluid from the second cyclone stage. The first dirt collection chamber (37) then surrounds at least partly the inlet duct (13) and the outlet duct (14).