Pipe Connection With Deformed Pipe End for 60 Degree Sealing
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Solution Overview
Problem
Existing pipe connections are primarily designed for the 24° system and are not compatible with the 60° system, limiting their application in mobile hydraulics and other industries where temperature variations are not a concern, and they often require complex forming processes that can damage pipes.
Innovation Solution
A pipe connection design where the inner cone of the screw connection body merges directly into its cylindrical inner lateral surface, allowing an unshaped pipe end to be combined with a 60° screw connection body, using a support ring with a conical clamping surface as a metallic sealing surface and optionally a soft seal, and incorporating assembly grooves for secure sealing and easy handling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pipe connections are designed for the 24° system with complex forming processes, then reliable sealing can be achieved, but the pipes may be damaged and the application scope is limited
Solution Approach 1:
The invention divides the sealing function into two separate components: a support ring that provides structural support and positioning, and a sealing ring that provides the actual sealing. This segmentation allows each component to be optimized for its specific function, with the support ring bearing mechanical loads and the sealing ring providing reliable sealing without subjecting the pipe to damaging forming processes.
Solution Approach 2:
The support ring acts as an intermediary component between the pipe and the connection system. It provides a stable mounting surface for the sealing ring and distributes mechanical stresses away from the pipe, enabling reliable sealing without direct contact between the pipe and the connection geometry that would cause damage.
2Ease of manufacture
If pipe connections are designed for the 24° system with standardized components, then manufacturing consistency is achieved, but compatibility with other systems like 60° is lost
Solution Approach 1:
The support ring and sealing ring combination is designed as a universal connection element that can be adapted to different connection systems (24°, 60°, and other cone angles). By separating the sealing function from the connection geometry, the same basic components can serve multiple connection standards, enabling a single design to work across different hydraulic systems without sacrificing manufacturing consistency.
3Reliability
If complex forming processes are used to create connection geometries on pipes, then secure attachment is achieved, but the assembly process becomes time-consuming and costly
Solution Approach 1:
The support ring and sealing ring are pre-assembled as a complete unit before installation on the pipe. This preliminary assembly ensures proper positioning and alignment, allowing the entire sealing and support assembly to be installed on the pipe in a single operation without requiring complex forming processes during final assembly, thereby improving productivity while maintaining attachment security.
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 reliable sealing and secure assembly in the 60° system without pipe damage, facilitating the use of standard 60° components and ensuring effective sealing through the conical clamping surface and optional soft seal, while simplifying the assembly process.
Implementation Method 1
the support ring with a conical clamping surface as a metallic sealing surface and optionally a soft seal
Implementation Method 2
Pipe connection with deformed pipe
Data Source
AI summary
The pipe joint has a screwing body (2) with an internal cone (19) which passes directly into the cylindrical inner jacket surface (29) which defines the through boring (D) of the screwing body. The endface of the pipe (4) extends at least partly radially inwards into the cross section of the through boring of the screwing body.