Beverage Valve Assembly with Movable Aprons for Leak-Proof Sealing
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Solution Overview
Problem
Existing beverage valve assemblies with inner bags for carbonated beverages, such as beer, face issues with apron damage and leakage due to displacement during attachment of connecting elements, leading to gas and liquid leaks, and malfunction of the valve assembly.
Innovation Solution
A beverage valve assembly design featuring a tubular part with multiple sealing surfaces and positioning means that allow for a gastight and liquid-tight connection with the connecting element, preventing damage and ensuring separate gas and beverage passages, even if the dispensing element is not in place.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the first apron and second apron are arranged in an upright position to provide gas-tight sealing surfaces, then sealing capability is improved, but the aprons become vulnerable to damage and twisting during attachment of the connecting element
Solution Approach 1:
The aprons are designed to be movable rather than fixed in an upright position. The first apron and second apron can dynamically adjust their position during attachment and operation, allowing them to adapt to slight displacements of the connecting element while maintaining sealing contact. This dynamic capability prevents the aprons from twisting or breaking under displacement forces.
Solution Approach 2:
The geometric parameters of the aprons, including their height, width, and positioning relative to the valve assembly, are optimized to provide both sealing capability and displacement tolerance. The aprons are positioned at specific distances from the top opening and have dimensions that allow them to flex and adjust during operation without compromising the gas-tight seal.
2Reliability
If the dispensing element abuts against the first apron for sealing, then sealing is provided, but any damage to the apron leads to gas and liquid leakage
Solution Approach 1:
The sealing system is divided into multiple independent sealing interfaces: the first apron provides sealing for the dispensing element, the second apron provides sealing for the connecting element collar, and the tubular part provides additional sealing surfaces. This segmentation means that damage to one apron does not necessarily compromise the entire sealing system, as other sealing interfaces can compensate.
Solution Approach 2:
The valve assembly design includes redundant sealing mechanisms and positioning features that prevent damage to the aprons in the first place. The movable aprons are positioned and dimensioned to accommodate slight displacements without contacting the connecting element in a way that causes twisting or breakage, thereby preventing leakage before it occurs.
3Reliability
If the aprons are positioned to provide sealing surfaces, then gas-tight and liquid-tight sealing is achieved, but displacement of the connecting element causes twisting or breakage of the fragile aprons
Solution Approach 1:
The aprons are designed with movable characteristics that allow them to dynamically adjust their position during attachment and operation. This dynamic capability enables the aprons to accommodate slight displacements of the connecting element without twisting or breaking, while still maintaining contact with the dispensing element and connecting element collar for sealing purposes.
Solution Approach 2:
The valve assembly is pre-configured with the aprons positioned at specific distances from the top opening and with specific dimensions that allow them to flex and adjust during operation. This preliminary positioning ensures that when the connecting element is attached, the aprons are already in a state ready to accommodate slight displacements without causing damage.
4Device complexity
If only the first apron is sealed to the dispensing element and the second apron to the connecting element collar, then sealing is provided, but leakage can occur at any apron failure
Solution Approach 1:
The sealing system is divided into multiple independent sealing interfaces: the first apron provides sealing for the dispensing element, the second apron provides sealing for the connecting element collar, and the tubular part provides additional sealing surfaces. This segmentation means that damage to one apron does not necessarily compromise the entire sealing system, as other sealing interfaces can compensate.
Solution Approach 2:
Different parts of the valve assembly have different sealing characteristics tailored to their specific functions. The first apron is optimized for sealing with the dispensing element, the second apron for sealing with the connecting element collar, and the tubular part provides additional localized sealing surfaces. This local optimization ensures that each sealing interface is designed to its specific requirements, improving overall reliability.
Data Source
AI summary
A beverage valve assembly having a bottom wall section, a tubular part extending downward from the bottom wall section and an outer apron extending upward from the bottom wall section. The beverage valve assembly also has a positioning means extending upward from the bottom wall section, wherein the tubular part has a top opening to receive a dispensing element, the top opening being arranged in a middle section of an upper outer surface of the bottom wall section, and the tubular part has an upper inner tubular wall section with a sealing surface, and the outer apron is arranged at a distance from the top opening of the tubular part, wherein the bottom wall section comprises at least one valve positioned between the top opening of the tubular part and an inner sidewall section of the outer apron, wherein the positioning means engages a recess in a connecting element.