Hydronic expansion tank assembly
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Solution Overview
Problem
Existing hydronic heating systems face challenges with space constraints and potential leak paths due to multiple components, particularly in the expansion tank assembly, which requires careful positioning and servicing.
Innovation Solution
A compact expansion tank assembly with an integral mounting bracket that allows for both top- and bottom-mount configurations, featuring a unitary body with strategically located ports and valves for efficient fluid management and leak reduction, along with an isolation mounting arm that supports the assembly and expansion tank.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple separate components are used for expansion tank assembly, then each component can be optimized independently, but the number of potential leak paths increases
Solution Approach 1:
The patent combines multiple separate components (isolation elbows, tees, mounting brackets, and expansion tank) into a single unitary body structure. This integration eliminates the need for multiple connection points and seals between separate components, thereby reducing potential leak paths while maintaining the functional complexity of isolation, mounting, and expansion tank integration capabilities.
2Volume of moving object
If expansion tank is positioned to accommodate limited space, then space utilization improves, but positioning and servicing difficulty increases
Solution Approach 1:
The unitary body is designed with integrated segmentation that allows the expansion tank to be positioned in limited spaces while maintaining accessibility. The isolation mounting arm with integrated tees and elbows creates distinct functional zones within a compact structure, enabling space-efficient positioning without compromising servicing ease through the integrated design.
Solution Approach 2:
The unitary body structure performs multiple functions simultaneously - isolation, mounting support, and fluid distribution - within a single compact component. This multi-functionality allows the assembly to accommodate limited space while maintaining all necessary servicing capabilities through integrated access points and standardized connection ports.
3Strength
If integral mounting bracket is added to support assembly weight, then structural support improves, but device complexity increases
Solution Approach 1:
The mounting bracket is integrated into the unitary body structure rather than being a separate component. This merging of structural support function into the existing isolation and fluid distribution structure provides the necessary strength to support assembly weight without adding separate mounting components, thereby avoiding increased device complexity.
Data Source
AI summary
An isolation mounting arm for use with an expansion tank has a passageway with a first end portion, a second end portion, and a medial portion located between the first end portion and the second end portion with the drain port located at the terminal end of the second end portion. A first tee is located in the first end portion with oppositely disposed first and second ports. A second tee is located in the second end portion, with oppositely disposed fourth and fifth ports. A first valve member is coupled to the first port, a second valve member is coupled to the second port, and a third valve member is located adjacent to the drain port. An expansion tank is coupled to either the fourth port or the fifth port with a plug coupled to the other port.