LASD Nozzle Edge Geometry for Uniform Multi-Bead Application
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Solution Overview
Problem
Technicians in the after-market face challenges in applying liquid applied sound deadener (LASD) in a specified multi-bead texture on motor vehicle components due to the lack of specialized tools, leading to inefficient and suboptimal noise and vibration control.
Innovation Solution
A nozzle with a unique design featuring a distal opening with a sawtooth or sine-shaped edge, allowing for the application of flowable viscous materials like LASD in a multi-bead texture, ensuring uniform bead distribution and pressurization without blocking.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a traditional nozzle is used to apply LASD, then the technician can apply the material, but the applied texture will have beads that are not specially-shaped, routed, or equidistant from each other
Solution Approach 1:
The nozzle is divided into multiple segments or sections, each with specific geometric features that guide the material flow to create uniformly spaced beads. The segmented structure allows each section to contribute to forming a specific portion of the multi-bead texture pattern.
Solution Approach 2:
Different portions of the nozzle have different local geometries and surface properties optimized for specific functions - some areas create bead formation while others control spacing and routing. The local quality variation in the nozzle structure enables precise control over bead characteristics without complicating the overall operation.
2Manufacturing precision
If a traditional nozzle is used to apply LASD, then the technician can apply the material, but the beads will not be equidistant from each other
Solution Approach 1:
The nozzle incorporates asymmetric geometric features and non-uniform cross-sectional areas along its length, with strategic constrictions and expansions that naturally space the beads at equidistant intervals. This asymmetric design achieves precise spacing through geometric control rather than complex mechanical mechanisms.
Solution Approach 2:
The nozzle employs curved and rounded geometric transitions rather than sharp angles, with smoothly varying cross-sections that guide the viscous material flow to naturally form equidistant beads. The curvature elements help distribute the material uniformly without requiring complex positioning systems.
3Manufacturing precision
If special tools from manufacturing plants are used, then the LASD can be applied in a specified multi-bead texture, but it is too expensive and requires special conditions for service shops
Solution Approach 1:
The nozzle is designed as an affordable, potentially disposable component that can be easily manufactured and replaced. This approach makes precision multi-bead texture application accessible to service shops without requiring expensive, complex equipment, as the nozzle itself is cost-effective and can be discarded after use.
Solution Approach 2:
The nozzle geometry is designed to replicate or copy the multi-bead texture pattern produced by expensive factory equipment. By using carefully designed geometric features in the nozzle, the same texture pattern can be achieved through a simpler, cheaper device that mimics the function of complex manufacturing tools.
4Reliability
If a traditional nozzle is used, then the technician can apply LASD, but the noise and vibration control will be degraded
Solution Approach 1:
The nozzle is pre-designed with built-in geometric features that automatically create the specified multi-bead texture pattern during application. This preliminary design of the nozzle geometry eliminates the need for post-application processing or adjustment, ensuring proper bead formation that maintains noise and vibration control effectiveness while improving application efficiency.
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
Enables easy and cost-effective application of LASD in a multi-bead texture by technicians, maintaining noise and vibration control comparable to factory standards, without the need for specialized equipment.
Implementation Method 1
the distal opening has a straight edge and a sawtooth-shaped or sine-shaped or wave-shaped edge opposing the straight edge
Implementation Method 2
a flowable viscous material such as a LASD or flowable sealant can be applied through the nozzle in a specified pattern such as a multi-bead texture
Implementation Method 3
the flowable viscous material can be supplied from the proximal end to the distal end and discharged out of the distal opening
Data Source
AI summary
A nozzle for an applicator by which a flowable viscous material suitable for forming a liquid applied sound deadener can be distributed, the nozzle comprising: a proximal end releasably coupled to the applicator and having an end side in which a single proximal opening is formed; a distal end opposing the proximal end and having an end side in which a single distal opening is formed; and an interior hollow chamber defined between the proximal end and the distal end and in fluid communication with both the proximal opening and the distal opening, the nozzle being configured such that when being distributed by the nozzle, the flowable viscous material can be supplied from the proximal end to the distal end and discharged out of the distal opening, and the distal opening has a straight edge and a sawtooth-shaped or sine-shaped or wave-shaped edge opposing the straight edge.