Fluid Connection Clamping Ring and Locking Bolt
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Solution Overview
Problem
Existing fluid-conducting connections with smooth tubes of uniform outer diameter face challenges in achieving leak-free operations, especially in high-pressure systems, and often require additional sealing means, while also lacking direct connection capabilities to system components like tanks or filters.
Innovation Solution
A connection system utilizing a clamping ring and a locking bolt with an inner and outer thread, combined with a sealing ring, allows for secure, leak-free connections between smooth tubes and system components, enabling easy disconnection and reconnection without damaging the sealing ring, and providing a metal-to-metal sealing function.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a smooth tube with uniform outer diameter is used for connection, then the tube construction is simplified and easier to manufacture, but achieving leak-free operation in high-pressure systems becomes difficult without additional sealing means
Solution Approach 1:
A sealing ring is introduced as an intermediary element between the smooth tube and the connection component. The sealing ring has a sealing bead that engages with a corresponding groove in the connection component, creating a reliable seal without requiring modifications to the smooth tube. This mediator enables high-pressure sealing while preserving the simplicity of the smooth tube construction.
2Reliability
If conventional plug-type connections with sealing rings are used, then sealing action is improved, but direct connection to system components is not possible requiring additional screw members and nuts
Solution Approach 1:
The connection component integrates multiple functions into a single element: it provides the sealing surface for the sealing ring, incorporates an internal thread for direct engagement with the locking bolt, and forms the structural connection point. This merging eliminates the need for separate screw members and nuts, enabling direct connection to system components while maintaining reliable sealing.
3Adaptability or versatility
If multiple separations and reconnections are performed, then reusability is required, but the sealing ring may be damaged or lost during disconnection
Solution Approach 1:
The sealing ring is nested within the connection component's bore, positioned in a recess that protects it during disconnection and reconnection operations. The sealing ring remains housed within the connection component rather than being exposed on the tube end, preventing loss or damage while allowing multiple separations and reconnections to be performed on the same sealing ring.
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-free, and easily reusable connection that maintains sealing integrity even under high pressure, minimizing damage risks and eliminating the need for complex manual operations, while allowing for direct connections without intermediate components.
Implementation Method 1
The locking bolt has an outer (male) thread which can be brought into engagement with the inner thread and which is arranged at least partially thereon
Implementation Method 2
The clamping ring can be clamped to the tube by the locking bolt being screwed into the connection component
Implementation Method 3
in the case of high-pressure systems (more than 70 MPa, for example) may require additional sealing means
Data Source
AI summary
A connection for conducting pressurized fluids between a tube and a connection component having a bore for receiving the tube. A clamping ring surrounds the tube and is seated on a seat between first and second bore segments and has an annular lip extending away from the seat. A locking bolt having a through-hole receiving the tube is threaded into the first bore segment and contacts the ring, an annular collar projecting from the locking bolt surrounding the lip and urging it radially inward to grip the tube when the bolt is tightened against the clamping ring. A sealing ring surrounding the tube is positioned between the clamping ring and a sealing ring seat defined between the second and third bore segments.