Multi-Position Hydration Valve for Leak Control and Free Flow
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Solution Overview
Problem
Existing hydration systems for aerobic activities, such as cycling, face issues with valve wear and the inability to maintain a closed position, leading to potential leaks, and lack an 'always open' position for free flow, posing safety hazards and inconvenience during events.
Innovation Solution
A multi-position valve assembly with a housing, collar, and stem assembly that allows for manual actuation between closed, selectively open, and fully open positions, utilizing a bias member and rotatable collar to manage fluid flow, ensuring secure sealing and free flow modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a bite valve is used for hands-free fluid delivery, then ease of operation is improved, but reliability deteriorates due to wear and inability to maintain closed position
Solution Approach 1:
The valve stem is made movable between multiple positions (closed, open, and intermediate) rather than being fixed in a single closed position. This dynamic structure allows the valve to adapt to different operational needs while maintaining reliability through controlled movement rather than passive wear-prone sealing.
Solution Approach 2:
The valve is divided into separate functional components: a collar for position control, a stem assembly with sealing elements, and a bias member for automatic return. This segmentation allows each component to perform its specific function optimally, with the bias member ensuring reliable return to closed position without requiring the entire valve structure to be complex.
2Ease of operation
If a bite valve is used for selective fluid flow, then ease of operation is improved, but adaptability deteriorates due to inability to provide free flow
Solution Approach 1:
The valve is designed to perform multiple functions: it can provide complete closure, selective bite-activated flow, and full open free flow position. The collar rotation mechanism enables the valve to switch between these different modes, making it universally applicable for various hydration needs during aerobic activity.
Solution Approach 2:
The collar can be rotated to different angular positions to dynamically change the valve's flow characteristics. This dynamic adjustment allows the user to switch between closed, selective flow, and fully open positions, providing adaptability that a fixed bite valve cannot achieve.
3Device complexity
If a traditional valve structure is used, then device complexity is reduced, but reliability deteriorates due to wear and leaking
Solution Approach 1:
The bias member is pre-loaded to continuously exert force on the valve stem, ensuring it returns to the closed position before the user releases the bite valve. This prior cushioning force prevents leakage by proactively maintaining sealing contact rather than relying on passive friction or complex mechanical retention.
Solution Approach 2:
The bias member automatically returns the valve stem to the closed position without requiring user intervention or complex mechanical retention mechanisms. This self-service feature maintains reliability by continuously resetting the valve to its sealed state, preventing leaks caused by wear or positional drift.
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 multi-position valve enhances hydration systems by providing reliable, hands-free fluid delivery during aerobic activities, reducing the risk of leaks and allowing for uninterrupted fluid replenishment, thus improving safety and convenience.
Implementation Method 1
the stem assembly can include a bias member which can be compressed to a biased position by moving the collar toward the housing or return to an unbiased position by pushing the collar away from the housing
Implementation Method 2
when it is desired to replenish fluids, the person engaged in aerobic activity places the outlet of the valve in his or her mouth and bites down on a flexible sheath. The sheath deforms and is taken out of sealing engagement with an internal stem
Data Source
AI summary
A valve assembly includes a housing, a collar, a sheath fixedly coupled to the collar, and a stem assembly. The collar and the sheath can be axially moveable relative to the housing between a first position, a second position, and a third position. In the first position, a fluid inside a lumen of the housing can be blocked from flowing into a lumen of the collar. In the second position, the fluid inside the lumen of the housing can flow through the lumen of the collar and into a chamber of the sheath. The fluid can be retained therein or flow out of the sheath through an aperture when the sheath is selectively deformed. In the third position, the fluid inside the lumen of the housing can flow through the lumen of the collar and the chamber, and then flow out of the sheath unobstructed through the aperture.