COC Elastomer Ring for Fluid Dispenser Valve Sealing
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ring designs for fluid dispenser valves can cause radial deformation of the valve body, leading to malfunction and contamination risks due to excessive stress and contact with the neck gasket, and fail to effectively manage manufacturing tolerances and fluid interactions.
Innovation Solution
A ring made of cyclo olefin copolymer (COC) elastomer with a deformable axial wall and stepped contact surfaces, distributed radial stress through multiple contact zones, and a neck gasket configuration to minimize deformation and contamination, while using a single-piece design to simplify assembly and reduce component parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the ring radially clamps the valve body to ensure sealing, then the sealing effect is improved, but the valve body deforms over time causing malfunction
Solution Approach 1:
The patent changes the material parameter of the ring from traditional elastomers to COC elastomer, which has different mechanical properties including lower radial compression stress. This material parameter change allows the ring to maintain sealing effectiveness while reducing the harmful radial deformation of the valve body that leads to malfunction.
2Object-affected harmful factors
If the ring is in contact with the neck gasket to limit fluid contact, then contamination risk is reduced, but the manufacturing complexity increases
Solution Approach 1:
The patent merges the ring structure with the neck gasket into a single integrated component made of COC elastomer. This combination eliminates the need for separate neck gasket parts, reducing manufacturing complexity while maintaining the function of limiting fluid contact and contamination risk.
3Reliability
If the radial compression on the ring is increased to improve sealing, then the sealing effectiveness is improved, but the valve body stress increases causing deformation
Solution Approach 1:
The patent changes the mechanical parameter of the ring material to COC elastomer, which has optimized elasticity and compression properties. This material parameter change allows the ring to provide effective sealing at lower radial compression levels, thereby reducing the stress transmitted to the valve body and preventing deformation.
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 solution prevents excessive radial stress on the valve body, maximizes fluid dispensing capacity, reduces interactions with propellant gases, and ensures a leak-tight seal, while being simple and cost-effective to manufacture and assemble, thereby enhancing the reliability and efficiency of the fluid dispenser device.
Implementation Method 1
said ring being made of a material that includes cyclo olefin copolymer (COC) elastomer
Data Source
AI summary
A ring (10) for arranging around a valve body (21) of a fluid dispenser valve (20) that is mounted by means of a fastener capsule (50), such as a crimpable capsule, on a reservoir (1) containing fluid to be dispensed, said ring (10) being made as a single piece including at least one inner portion (100, 110) that co-operates with said valve body (21), and a radial flange (11) that forms a neck gasket that extends between the neck of the reservoir (1) and the fastener capsule (50).