Fluid Coupling Seal Spacer for Precise Seal Positioning
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Solution Overview
Problem
Existing fluid couplings lack efficient mechanisms to accurately position and maintain seal members in operational positions, leading to potential leakage and assembly challenges.
Innovation Solution
Incorporation of a seal spacer mechanically captured between rigid components of the fluid coupling, which separates and positions two seal members, ensuring precise alignment and stable operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If seal members are positioned directly between components without a seal spacer, then the structure is simpler, but the positioning accuracy and seal reliability deteriorate
Solution Approach 1:
A seal spacer is introduced as an intermediary component between the first and second seal members. The seal spacer includes a first portion disposed between the seal members and a second portion disposed between the valve cartridge housing and main body, mechanically captured to provide precise positioning and maintain seal integrity under pressure.
Solution Approach 2:
The seal positioning function is segmented into two separate components: the seal members themselves and the seal spacer. This segmentation allows the seal spacer to specifically handle the positioning and spacing function, improving manufacturing precision while keeping the overall design modular and manageable.
2Reliability
If seal members are positioned without mechanical capture, then assembly is easier, but seal stability under pressure deteriorates
Solution Approach 1:
The seal spacer acts as a mechanically captured intermediary that is clamped between the valve cartridge housing and main body. This mechanical capture provides stable positioning of the seal members under pressure while maintaining a straightforward assembly process where the seal spacer is simply inserted and captured.
Solution Approach 2:
The seal spacer is pre-configured with the appropriate thickness and geometry to provide the necessary spacing and positioning before assembly. The mechanical capture features are pre-formed, allowing for easy assembly while ensuring reliable seal positioning under operating conditions.
3Manufacturing precision
If a seal spacer is mechanically captured between components, then seal positioning accuracy improves, but device complexity increases
Solution Approach 1:
The seal spacer is a simple intermediary component that provides precise positioning through its geometric features. While it adds one component to the assembly, its simple structure and function minimize the overall complexity increase while significantly improving seal positioning accuracy.
Solution Approach 2:
The seal spacer serves multiple functions: it positions the seal members, maintains the required spacing between them, and provides a mechanically captured structure that ensures stability under pressure. This multi-functionality justifies the additional component by eliminating the need for more complex positioning mechanisms.
Data Source
AI summary
Fluid coupling devices can be used in fluid handling systems. Some fluid couplings include multiple rigid components, two fluid seal members, and a seal spacer that is mechanically captured and/or clamped between rigid components of the fluid coupling. Such seal spacers can be used to separate the two fluid seal members and to position the fluid seal members in desired operational positions.