Unitary Elastomeric Valve Element for Beverage Dispensing Sealing
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Solution Overview
Problem
Existing beverage dispensing systems face challenges in sealing and leakage prevention during transportation, installation, and operation, particularly with flexible kegs and carbonated beverages, due to the complexity of valve elements and the need for multiple components.
Innovation Solution
A valve element made from a single, unitary cast structure with flexible materials, featuring a flexible valve part and a plug that seals the dispensing line by abutting the dispensing end, eliminating the need for additional valves and ensuring sealing through pre-tension and alignment, even under high pressure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional valve element with multiple separate components is used, then the sealing function can be achieved, but the device complexity increases and assembly becomes more difficult
Solution Approach 1:
The patent combines multiple separate valve components (valve body, sealing elements, actuating mechanisms) into a single integrated valve element made from elastomeric material. This merging of components reduces device complexity while maintaining the sealing function through the inherent elasticity and flexibility of the elastomeric material that forms all structural and sealing elements in one piece.
Solution Approach 2:
The elastomeric valve element serves multiple functions simultaneously: it provides structural support as the valve body, creates seals through its elastic deformation, and enables actuation through its flexibility. This multi-functionality eliminates the need for separate components for each function, reducing overall device complexity while maintaining reliable sealing.
2Device complexity
If a unitary cast structure with flexible material is used, then the number of components is minimized, but ensuring reliable sealing under high pressure becomes more challenging
Solution Approach 1:
The patent utilizes the elastic properties of elastomeric material to create a valve element that can dynamically adjust its sealing parameters under pressure. The material's elasticity allows it to deform and conform to sealing surfaces under high pressure conditions, maintaining reliable sealing without requiring complex multi-component structures with multiple sealing interfaces.
Solution Approach 2:
The use of elastomeric material provides a composite-like structure within a unitary design, combining the benefits of structural rigidity and elastic flexibility in a single material. This allows the valve element to maintain its shape and structural integrity while simultaneously providing elastic sealing surfaces that adapt to pressure changes, ensuring reliable sealing under high pressure conditions.
3Ease of operation
If separate valve elements and dispensing lines are joined after introduction into the tapping head housing, then assembly flexibility is improved, but the risk of leakage during transportation and installation increases
Solution Approach 1:
The elastomeric valve element is pre-formed with integrated sealing capabilities before installation. The elastic material is molded into a configuration that automatically provides sealing when installed, eliminating the need for post-installation joining operations that could create leakage points. The preliminary formation of the complete valve element ensures sealing integrity is built-in rather than assembled.
Solution Approach 2:
The valve element is designed as a disposable component that is replaced with each keg installation. This eliminates the need for complex, reusable joining mechanisms that could fail or leak over time. The simple, single-use design ensures consistent sealing performance for each installation without the degradation or complexity accumulation associated with reusable multi-component systems.
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 provides a reliable, leak-proof system for dispensing beverages by using a single, integrated valve element that seals effectively during transportation and operation, reducing the risk of leakage and simplifying assembly and disassembly processes.
Implementation Method 1
a flexible valve part which is elastic and has a pre-tension when being installed
Implementation Method 2
The dispensing line should be flexible and the dispensing end should preferably be oriented towards the plug in a right angle
Data Source
Figure 1~2
Figure 3A~3B
Figure 4A~4C
AI summary
A valve element of a beverage dispensing assembly to be used with a tapping head includes a tapping head housing and a tap handle. The beverage dispensing assembly comprises two elements, viz a dispensing line having a dispensing end and a keg connection end, and the valve element comprising an upstream valve part, a flexible valve part, a lower valve part, and a plug being accommodated in the lower valve part and serving to seal off the dispensing end of the dispensing line. When the valve element is not positioned and received in the tapping head housing, the plug is caused to seal off the dispensing line, and when the valve element is positioned and received in the tapping head housing, the upstream valve part and lower valve part of the valve element are operated by the tap handle for causing the plug to seal off the dispensing line.