Conveyor Membrane Sealing with Three-Arc Counter Surface
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Solution Overview
Problem
Conventional conveyor devices for fluids face challenges in achieving reliable sealing and efficient conveyance due to limitations in the design of conveyor chamber elements and elastically deformable conveyor elements, leading to potential leaks and suboptimal fluid transfer.
Innovation Solution
The design incorporates a conveyor chamber element with a counter surface extending over three circular arc sections and an elastically deformable conveyor element with a sealing extension that integrates with a sealing groove, allowing for a multidimensional sealing function and efficient fluid conveyance through the use of a drive unit that generates a vacuum, enabling reliable and efficient fluid transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional conveyor chamber element with a simple counter surface is used, then the device complexity is low, but the sealing reliability is insufficient and leaks occur
Solution Approach 1:
The counter surface is segmented into three distinct circular arc sections with different radii of curvature. This segmentation allows each section to perform a specific sealing function, with the smaller radius sections providing stronger sealing pressure and the larger radius section providing a broader sealing area, thereby achieving reliable sealing without excessive overall complexity.
Solution Approach 2:
Different regions of the counter surface are given different local properties through varying radii of curvature. The first and third circular arc sections have smaller radii to concentrate sealing force, while the second circular arc section has a larger radius to distribute sealing force. This local differentiation optimizes sealing performance at each location.
2Reliability
If the sealing extension is arranged to border directly on the circular arc sections, then the sealing surface area is increased, but the manufacturing precision requirements increase
Solution Approach 1:
The counter surface employs circular arc sections with continuous curvature transitions. This curved geometry allows the sealing extension to border directly on the arcs while maintaining manufacturability, as the curved surfaces can be formed through standard molding or machining processes without requiring complex precision fitting.
3Productivity
If the conveyor element is made elastically deformable, then the conveying function is improved, but the sealing stability may be compromised
Solution Approach 1:
The elastic modulus and thickness parameters of the conveyor element are optimized to balance deformability and sealing stability. The element is designed to be sufficiently rigid to maintain sealing contact during operation, yet flexible enough to deform for effective conveying. The multi-section counter surface compensates for any sealing instability by distributing contact pressure across multiple regions.
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 ensures a reliable seal, counteracts leaks, and achieves efficient fluid conveyance by creating a large sealing surface and utilizing an inhomogeneous pressing force distribution, resulting in a compact and powerful pump suitable for various sectors.
Implementation Method 1
at least one elastically deformable and, in particular, annular conveyor element, particularly a conveyor membrane, that delimits the conveyor chamber together with the conveyor chamber element
Implementation Method 2
a drive unit that generates a vacuum, enabling reliable and efficient fluid transfer
Data Source
AI summary
A conveyor device for at least conveying a fluid with at least one conveyor chamber is provided. The conveyor device includes at least one dimensionally stable conveyor chamber element that at least partially delimits the conveyor chamber and with at least one elastically deformable and, in particular, annular conveyor element, particularly a conveyor membrane, that delimits the conveyor chamber together with the conveyor chamber element and is arranged on the conveyor chamber element, wherein the conveyor element has at least one sealing extension that is designed integrally with a base body of the conveyor element and at least partially arranged in a sealing groove of the conveyor chamber element when the conveyor element is arranged on the conveyor chamber element.