Flush-Mount Valve Assembly for Sealed Venting Without Deck Protrusion
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Solution Overview
Problem
Existing mechanisms for sealing fluid passages in containers, such as ballast tanks on marine vessels, often result in vent structures that protrude above the deck, leading to inefficiencies and unsuitable designs for certain applications.
Innovation Solution
A flush-mount valve assembly that includes a valve barrier movably coupled to a panel, allowing it to pivot or translate between open and closed positions while remaining below the surface, with a seal mechanism to ensure a fluid-tight closure without protruding above the surface.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If a conventional valve mechanism is used to seal the ballast tank, then the valve can effectively control fluid passage, but the vent structure protrudes above the deck surface
Solution Approach 1:
The valve barrier is nested within a recessed cavity in the panel, allowing the valve mechanism to be contained entirely within the panel thickness. The valve barrier moves within this nested space, enabling flush mounting while maintaining full valve functionality and accessibility for operation.
Solution Approach 2:
The valve operation is transitioned from a linear protruding motion to a rotational or lateral motion within the recessed plane. The valve barrier pivots or translates within the recessed cavity rather than extending outward, changing the dimensional approach from protrusion to in-plane movement.
2Productivity
If the valve barrier moves extensively to open fully, then complete purging is achieved, but the valve may protrude or require complex mounting
Solution Approach 1:
The valve barrier is divided into a seal portion and an actuation portion. The seal portion remains engaged with the seal surface to maintain sealing, while the actuation portion moves laterally or rotates to control fluid flow. This segmentation allows complete purging efficiency while simplifying the mounting mechanism within the recessed cavity.
Solution Approach 2:
The valve barrier employs a dynamic sealing mechanism where the seal surface and seal portion maintain continuous contact or near-contact during operation. This dynamic engagement ensures complete purging efficiency while the recessed mounting contains the motion mechanism, reducing overall complexity.
3Shape
If the valve is designed to be completely flush, then aesthetic appeal is improved, but sealing reliability may be compromised
Solution Approach 1:
The panel features a localized recessed cavity at the valve location, creating a different structural quality in that specific area. This local modification allows the valve barrier to be mounted flush with the panel outer surface while providing sufficient depth for reliable sealing engagement between the valve barrier seal portion and the seal surface.
4Shape
If the valve barrier is positioned deep within the panel, then flush mounting is achieved, but accessibility for maintenance becomes difficult
Solution Approach 1:
The actuation mechanism is extracted or extended outward from the recessed cavity, allowing operators to access and operate the valve from outside the panel while the valve barrier itself remains nested within the recessed space for flush mounting appearance.
Data Source
AI summary
A flush-mount valve and vent assemblies including the same are described. A flush-mount valve may include a valve mount and a valve barrier which are coupled to the underside of a structure forming part of a liquid-impermeable container. The flush-mount valve is arranged to control the flow of fluid(s) across a fluid passage in the structure and is mounted to the structure so as to remain fully within the interior of the container.