Adhesion Rotary Disc Minipump Bidirectional Flow Scraping
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Solution Overview
Problem
Conventional adhesion-based rotary disc pumps typically have a centralized inlet and peripheral outlet, limiting bidirectional fluid transportation and efficiency.
Innovation Solution
The design incorporates a scraping unit that channels fluid from both sides of adhesion-propelling discs to a peripheral outlet, allowing bidirectional fluid transport and utilizing a rotatable shaft with adhesion-propelling discs that can be driven clockwise or counterclockwise, enabling fluid to be transported from inlet to outlet or vice versa.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional adhesion-based rotary disc pumps use centralized inlet and peripheral outlet configuration, then the pump structure is simple, but bidirectional fluid transportation is limited and transport efficiency is reduced
Solution Approach 1:
The pump housing is segmented into multiple independent pumping chambers, each capable of handling fluid in either direction. This segmentation allows the pump to accept fluid from either inlet port and deliver it to either outlet port, enabling bidirectional operation while maintaining manageable structural complexity through modular chamber design
Solution Approach 2:
Each pumping chamber is designed with universal functionality to handle fluid flow in both directions. The chambers can operate as active pumping zones regardless of flow direction, and non-active chambers serve as collection or delivery zones, allowing the same structural components to serve multiple functions based on operational requirements
2Adaptability or versatility
If adhesion-propelling discs transport fluid bidirectionally, then fluid transport flexibility is improved, but fluid loss and adhesion force optimization become challenging
Solution Approach 1:
The scraping unit is positioned to scrape fluid from the outer peripheral region of the rotating discs rather than from the center. This inverted scraping approach effectively removes adherent fluid that has completed its transport cycle, preventing fluid loss and maintaining optimal adhesion forces for ongoing bidirectional transport operations
Solution Approach 2:
The scraping unit performs preliminary removal of excess adherent fluid before the discs complete their rotation cycle. By scraping fluid from the outer regions, the system prepares the discs for the next transport cycle, ensuring that adhesion forces remain optimized and fluid loss is minimized through controlled removal rather than uncontrolled dripping or leakage
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 configuration enhances fluid transport efficiency by allowing bidirectional flow and minimizing fluid loss, while the scraping unit effectively removes adherent fluid from discs, optimizing the use of adhesion forces for fluid conveyance.
Implementation Method 1
Pumps that are propelling liquid on the basis of adhesion, which are sometimes referred to as 'Tesla pumps'
Implementation Method 2
a scraping unit adapted to scrape off adherent fluid from both sides of each of the at least one adhesion-propelling disc
Data Source
Figure 1A
Figure 1B
Figure 2A~2B
AI summary
The present invention discloses an adhesion rotary disc minipump (101, 102, 103, 300, 400, 500) comprising a housing (120) embedding therein at least one adhesion-propelling disc (132) mounted on a rotatable shaft (131) that is drivable by a drive (160, 360, 560, 660), wherein fluids engaging with said at least one adhesion-propelling disc (132) are transportable from at least one inlet (111) to at least one outlet (112). In embodiments, the adhesion rotary disc minipump is characterized in that a scraping unit (110, 310) scrapes off fluid adherent on both sides of each of the at least one rotatable adhesion-propelling disc (132, 332) and that the scraped-off fluid is being channeled directly or indirectly to the at least one outlet (112, 312).