Removable Wall Element for Uniform Liquid Jet Dispensing
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Solution Overview
Problem
Existing devices for dispensing liquid as a wide jet struggle to achieve uniformity of volume flow across the width, particularly due to variations in fluid-mechanical parameters such as liquid pressure, cross-sectional areas, and viscosity, which affects the even application of plastics like CFRP in manufacturing processes.
Innovation Solution
A device with a removable and exchangeable wall element for the dispensing opening, allowing adaptation to different flow situations by varying the contour of the dispensing opening, such as slot-shaped or circular bore configurations, to ensure a uniform volume flow across the width of the jet.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a fixed dispensing opening is used, then the device structure is simple, but the uniformity of volume flow across the width cannot be adapted to different fluid-mechanical parameters
Solution Approach 1:
The device is segmented into a base body and a removable wall element that contains the dispensing opening. This allows the wall element to be exchanged independently to adapt to different fluid-mechanical parameters without redesigning the entire device, thus improving adaptability while keeping the base structure simple.
Solution Approach 2:
The contour and cross-sectional area of the dispensing opening are varied by exchanging different wall elements. Each wall element is designed with specific geometric parameters (slot-shaped, circular bore, etc.) that are optimized for particular fluid properties and flow conditions, enabling adaptation to different fluid-mechanical parameters.
2Manufacturing precision
If the dispensing opening contour is optimized for uniform flow, then the volume flow uniformity improves, but the device cannot be adapted to different flow situations
Solution Approach 1:
The wall element containing the optimized dispensing opening is made as a separate, removable component. This segmentation allows multiple wall elements with different optimized contours (slot-shaped for viscous liquids, circular bores for other applications) to be created, each optimized for specific flow situations, while maintaining the ability to exchange them as needed.
Solution Approach 2:
The base device body serves as a universal platform that can accommodate multiple different wall elements. Each wall element provides a specialized dispensing opening optimized for particular applications, making the overall system multi-functional and adaptable to various flow situations while maintaining uniform volume flow distribution.
3Manufacturing precision
If a slot-shaped dispensing opening with variable gap height is used, then uniform volume flow across width is achieved, but manufacturing complexity increases
Solution Approach 1:
The complex slot-shaped dispensing opening with variable gap height is isolated in a separate wall element that can be manufactured independently using specialized techniques. This segmentation allows the complex geometry to be produced once as a precision component, then replicated and exchanged without requiring the entire device to be manufactured with high complexity.
4Adaptability or versatility
If the dispensing opening is made exchangeable, then adaptability to different applications improves, but device complexity and assembly requirements increase
Solution Approach 1:
The wall element is designed as a self-contained module that interfaces with the base device body through a standardized connection. This segmentation allows the exchangeable component to be simple and lightweight, reducing the complexity of the assembly mechanism while enabling easy replacement to adapt to different applications.
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
The device generates a wide jet with a uniformly distributed volume flow, accommodating various fluid properties and enabling efficient, even application of liquids on surfaces, enhancing manufacturing processes like CFRP component production.
Implementation Method 1
a liquid-tight line connection between the discharge opening (8) and the supply opening (4) within the device (2)
Data Source
Figure 1
Figure 2~3
Figure 4~6
AI summary
The apparatus (2) has a tubular inlet opening (4) for a liquid i.e. liquid plastic, and a discharge opening (8) that is provided in line connection with the supply opening. The discharge opening is provided with an opening cross-section that is widen than height of the opening. The discharge opening is formed in a wall element (14) that is able to be removed from the liquid dispensing apparatus. A fiber element is formed in a wall element. The wall element is arranged with a connector that cooperates positively with a counter-connection element.