Liquid Separator Element with Axial Drainage Channels
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Solution Overview
Problem
Existing separation elements for liquid aerosols in internal combustion engine crankcase ventilation systems and air/oil separators face inefficiencies in liquid discharge, as they lack effective mechanisms for efficient liquid drainage and separation.
Innovation Solution
The separation element features a medium layer with channel-shaped indentations on its circumferential surface, allowing liquid to flow radially inward or outward and facilitating efficient drainage through axial channels, which can be vertically oriented to utilize gravity for liquid discharge, and can be wound in a layered manner to enhance separation efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional separation elements without channel structures are used, then the structure is simpler, but liquid discharge efficiency is poor
Solution Approach 1:
The separation element is divided into multiple functional zones: the separation medium layer for liquid-gas separation, and the channel structure (comprising bottom wall, side walls, and outlet) for liquid discharge. This segmentation allows each component to perform its specific function efficiently, resolving the contradiction by creating dedicated discharge pathways without overcomplicating the overall structure.
Solution Approach 2:
The channel structure acts as an intermediary element between the separation medium and the external environment. It receives separated liquid from the medium and guides it to the outlet, serving as a mediating structure that improves discharge efficiency while maintaining relative structural simplicity through its standardized geometric design.
2Productivity
If multiple medium layers are wound in a layered manner, then separation efficiency is enhanced, but manufacturing complexity increases
Solution Approach 1:
The separation medium is organized into multiple discrete layers that can be individually manufactured and then assembled through winding. This segmentation allows for standardized production of each layer while achieving enhanced separation efficiency through the multi-layer configuration, balancing manufacturing ease with performance.
Solution Approach 2:
Multiple medium layers are nested within each other in a concentric winding arrangement around a central axis. This nesting configuration maximizes separation efficiency by providing multiple separation stages within a compact structure, while the regular geometric pattern simplifies the winding and assembly process compared to irregular multi-layer configurations.
3Productivity
If channel-shaped indentations are added to the medium layer, then liquid drainage is improved, but the medium layer becomes more complex to produce
Solution Approach 1:
The channel-shaped indentation introduces local structural variation into the medium layer, creating specific zones for liquid collection and discharge. This local modification improves drainage efficiency without requiring complete redesign of the entire medium layer, maintaining relative manufacturing simplicity by applying complexity only where functionally necessary.
Solution Approach 2:
The channel structure modifies the geometric parameters of the medium layer by introducing a defined three-dimensional form with specific dimensions (bottom wall, side walls, outlet). This parameter change creates effective liquid pathways while the standardized geometric design allows for consistent manufacturing through controlled forming processes.
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 enables efficient and uniform liquid discharge, improving the separation process by allowing liquids to be collected and discharged at multiple points, enhancing the separation efficiency and adaptability of the separation medium.
Implementation Method 1
The element axis extends vertically in space with at least one directional component in the normal operational orientation of the separation element... at least one channel-shaped indentation extending axially to the element axis... in order to realize at least one channel, in particular, a discharge or drainage channel, for separated liquid... Separated liquid can then follow the force of gravity and run spatially downward in the at least one channel.
Implementation Method 2
The invention relates to a separation element of a liquid separator, in particular, an oil separator... for the separation of liquid from an aerosol
Implementation Method 3
Separated liquid can then follow the force of gravity and run spatially downward in the at least one channel
Data Source
AI summary
Disclosed are: a separation element (20) of a liquid separator (10) for the separation of liquid from an aerosol; a separation medium (38); a liquid separator (10); and a method for producing a separation element. The separation element (20) has at least one separation medium (38) for separating at least the liquid, the separation medium being arranged circumferentially about an element axis (22) in at least one medium layer (40). The aerosol is able to flow through the separation element (20) radially relative to the element axis (22). At least one medium layer (40) has, on a radially inward circumferential surface, at least one channel-shaped indentation (42) extending axially to the element axis (22) to realize at least one channel (44) for separated liquid.