Asymmetric Coupling for Air-Liquid Separation
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Solution Overview
Problem
Existing couplings for media-carrying lines, particularly in coolant lines, suffer from inadequate separation performance, leading to reduced cooling capacity due to insufficient separation of air and liquid mixtures.
Innovation Solution
The coupling features an asymmetric step-like expansion of the inner cross-section with a larger inner diameter at the second end, creating a dynamic return flow area and integrating a ventilation opening in the area of maximum expansion to enhance separation and venting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional coupling design with symmetric cross-section is used, then the structure is simple and easy to manufacture, but the separation performance is insufficient leading to reduced cooling capacity
Solution Approach 1:
The patent applies asymmetry by designing the coupling with an asymmetric cross-sectional shape where the first cross-section differs from the second cross-section. Specifically, the coupling features a first wall and second wall with different configurations, creating asymmetric flow paths that enhance the separation of air and liquid phases. This asymmetric geometry improves separation performance without requiring additional complex components.
Solution Approach 2:
The patent utilizes dimensional changes by varying the cross-sectional area along the length of the coupling. The first cross-section has a different area than the second cross-section, creating expansion or contraction zones that promote phase separation. This dimensional variation creates dynamic flow patterns that enhance separation efficiency while maintaining a simple single-piece structure.
2Reliability
If the inner diameter is uniform throughout the coupling, then the manufacturing is simpler, but the return flow area is insufficient for effective air-liquid separation
Solution Approach 1:
The asymmetric cross-sectional design creates specific flow patterns where liquid tends to follow the walls while air rises through the asymmetric void spaces. This asymmetric configuration naturally promotes phase separation and enhances the return flow area for effective air-liquid separation, directly improving cooling capacity.
Solution Approach 2:
The patent changes geometric parameters along the coupling length, specifically varying the cross-sectional area from the first end to the second end. This parameter variation creates expansion zones that increase the return flow area, enabling more effective air-liquid separation while maintaining manufacturing simplicity through a single molded or machined piece.
3Reliability
If no ventilation opening is provided, then the structure remains simple, but air separation and venting is ineffective reducing cooling efficiency
Solution Approach 1:
The patent merges the ventilation function directly into the coupling body by integrating a ventilation opening into the asymmetric structure. This integration allows air separation and venting to occur within the existing asymmetric flow paths without requiring separate ventilation components, maintaining structural simplicity while achieving effective venting.
Solution Approach 2:
The asymmetric coupling structure serves multiple functions simultaneously: it provides the main fluid passage, creates the return flow area for separation, and incorporates the ventilation opening for air release. This multi-functionality achieves effective venting while avoiding additional structural complexity.
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 improves separation performance and allows for efficient media routing while enabling effective venting, thereby maintaining or enhancing cooling capacity in media-carrying lines.
Implementation Method 1
an asymmetric step-like expansion over the circumference of the inner cross section, so that an asymmetrical return flow area can be formed when the media are guided
Implementation Method 2
a device for removing air and/or vapor from the liquid is connected in one of the connections and the device comprises a hollow body, an inlet for the hollow body, an outlet from the hollow body, a surface within the hollow body and a vent at the top
Data Source
Figure 1
Figure 2
AI summary
The invention relates to a coupling (100, 200) for a plug-in connection for media-carrying lines, comprising a flow channel that has an inner cross section that is enlarged in steps in order to allow the formation of a reflux zone (120, 202) when carrying the media, and a vent opening (122, 204), in which the step-like enlargement is asymmetrically formed over the circumference of the inner cross section so as to achieve an improved separation capacity.