Rotating Sealing Ring for Fluid Coupling
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Solution Overview
Problem
Existing fluid coupling elements face challenges in achieving quick and easy coupling while maintaining excellent sealing properties, particularly due to the rotational complexity introduced by fixed seals.
Innovation Solution
A coupling element design featuring a sealing ring with an elastic lip that deflects radially and axially, allowing for temporary support on a support wall, enabling smooth rotation and secure sealing through axial displacement and elastic deformation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealing ring is circumferentially fixed by engagement in an annular groove, then sealing stability is improved, but rotational movement complexity increases and coupling ease deteriorates
Solution Approach 1:
The sealing ring is designed to be rotatable within the coupling body rather than fixed circumferentially, enabling dynamic adjustment during the coupling process. This rotational capability simplifies coupling operations while the sealing lip maintains reliable sealing through elastic deformation and contact with the counter-element.
Solution Approach 2:
The sealing ring incorporates an elastic sealing lip that can deflect and deform to maintain sealing contact. The flexible lip compensates for misalignments and maintains sealing effectiveness even during rotational movement, resolving the contradiction between rotatability and sealing stability.
2Ease of operation
If the sealing ring is made rotatable to facilitate coupling, then coupling ease is improved, but sealing reliability may deteriorate
Solution Approach 1:
The elastic sealing lip acts as a flexible element that maintains sealing contact through elastic deformation. As the sealing ring rotates during coupling, the sealing lip deflects to ensure continuous contact with the coupling counter-element, maintaining sealing reliability despite rotational movement.
Solution Approach 2:
The sealing system is designed to be dynamic rather than static, allowing the sealing ring to rotate freely during coupling while the sealing lip dynamically adjusts its position through elastic deformation to maintain sealing effectiveness throughout the coupling process.
3Adaptability or versatility
If the sealing lip is elastic and deflectable, then sealing adaptability is improved, but structural complexity increases
Solution Approach 1:
The elastic sealing lip provides adaptability through its ability to deflect and deform, allowing the sealing ring to accommodate variations in alignment and maintain sealing contact. This flexible element achieves adaptability with minimal structural complexity, as the elasticity itself provides the necessary compliance without requiring additional adjustment mechanisms.
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 design facilitates easy coupling and ensures a reliable, fluid-tight connection with reduced friction, enhancing the sealing effectiveness and ease of use.
Implementation Method 1
an elastic sealing lip, which can be deflected in particular in the radial direction, extends from the base body in the axial direction
Data Source
Figure 1~2
Figure 3~5
AI summary
The invention relates to a coupling element (1) for a fluid coupling (2), with coupling means (4) for reversibly coupling the coupling element (1) with a coupling counterpart element (5) of the fluid coupling (2) and with a sealing ring (9) for sealing a fluid connection when the coupling element (1) is coupled with the coupling counterpart element (5), wherein the sealing ring (9) is rotatably arranged in a coupling body (3) of the coupling element (1). It is provided that a base body (19) of the sealing ring (9) is arranged with axial clearance in a sealing receptacle (8) formed in the coupling body (3) with respect to a longitudinal central axis (10) of the coupling body (3), and that an elastic sealing lip (21) extends from the base body (19) in the axial direction, which is inclined radially inwards and by means of which the sealing ring (9) is supported at least temporarily on a support wall (12) which limits the sealing receptacle (8) in the axial direction.The invention further relates to a fluid coupling (2).