Coupling Device Residual Pressure Relief System
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional coupling devices face difficulties in connecting without applying significant force against residual pressure, often requiring complex mechanisms and resulting in potential leakage and contamination due to unsealed chambers.
Innovation Solution
A coupling device design featuring a first and second half with a body housing front and rear chambers separated by elements, where the second element is slidably inserted, allowing for pressure evacuation from the rear to the front chamber without moving elements subjected to residual pressure, ensuring easy connection and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional coupling devices are used with sealed chambers, then leakage is prevented, but connection requires significant force against residual pressure
Solution Approach 1:
The coupling device is divided into a first half and a second half, each with separate front and rear chambers. The pressure relief system is segmented into a first valve and a second valve that operate independently at different stages, allowing pressure evacuation without compromising the overall sealing integrity of the coupling device.
Solution Approach 2:
The pressure relief system activates preliminary actions by evacuating residual pressure from the rear chamber through the first valve before final connection is completed. This preliminary pressure relief reduces the force needed for subsequent connection steps while maintaining sealing through the second valve.
2Force
If pressure relief systems with unsealed chambers are used, then connection force is reduced, but contamination and leakage occur
Solution Approach 1:
The chamber system is segmented into separate front and rear chambers with controlled communication paths. The rear chamber can be depressurized through the first valve without exposing the front chamber to contamination, as the second valve maintains sealing when closed.
Solution Approach 2:
The first and second valves act as intermediary elements that control pressure evacuation while maintaining separation between the pressurized rear chamber and the clean front chamber. These valves mediate the pressure relief process without allowing direct contamination pathways.
3Reliability
If complex valve mechanisms are used, then pressure relief is achieved, but device complexity increases
Solution Approach 1:
The complex pressure relief function is segmented into two simpler valve mechanisms (first valve and second valve) that perform distinct functions at different stages. This segmentation simplifies each individual valve mechanism while achieving the overall pressure relief objective.
Solution Approach 2:
The valve system is designed to be dynamic, with the first valve activating during the pressure relief phase and the second valve maintaining sealing during connection. This dynamic operation allows simple valve structures to perform complex sequential functions.
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
Enables effortless connection by evacuating pressure without applying force against it, preventing contamination and leakage, and reducing the effort required to connect the coupling device, even at high pressures up to 350 bar.
Implementation Method 1
the second element is moved such that a second through-hole provided in the second element is in fluid communication with the first through-hole, thereby providing a further fluid communication between the front and rear chambers
Data Source
AI summary
A coupling device includes a first half and a second half adapted to be connected to each other. The first half has a body housing a front chamber and a rear chamber separated by a first element and a second element slidably inserted in a bore provided in the first element. The bore forms an inner cavity in fluid communication with the front chamber and communicating with the rear chamber via a first through-hole provided in the first element. The cavity is sealed from the rear chamber and in that upon connection of the coupling device the second element is longitudinally moved on that a second through-hole provided in said second element comes in fluid communication with the first through-hole thereby providing a fluid communication between the two chambers via the cavity.