Rotary Multi-Channel Coupling Layout for Mixed-Fluid Connections
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Solution Overview
Problem
Existing coupling devices fail to efficiently connect groups of line sections with rotatable fluid channels, leading to bending or torsional stress during rotation, and do not allow for flexible arrangement of fluid channels for different media.
Innovation Solution
A coupling device with separable fluid channels on adjacent end faces of coupling parts, arranged in a concentric ring or stepped configuration, allowing for multi-rotary connections and flexible distribution of fluid channels, and featuring pivot bearings and sealing systems for secure rotation and sealing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple individual rotary connectors are used to connect line sections for different media, then each connection can be optimized for its specific medium, but the overall device becomes complex and requires multiple separate components
Solution Approach 1:
The patent combines multiple individual rotary connectors into a single integrated coupling device. The first coupling part contains multiple fluid channels (first, second, third channels) that are rotatably connected to the second coupling part, allowing multiple media connections to be achieved through one unified structure rather than multiple separate connectors.
Solution Approach 2:
The coupling device is designed to perform multiple functions simultaneously - it can connect different types of fluid lines (pneumatic, hydraulic, suction, discharge) through a single device structure. The rotatable coupling parts with multiple channels enable one device to replace several specialized connectors.
2Length of moving object
If fluid channels are arranged in a stepped configuration, then the device achieves a slim design with reduced axial length, but the manufacturing and alignment of channels becomes more complex
Solution Approach 1:
The patent transitions from a conventional axial arrangement of fluid channels to a radial/stepped configuration. The channels are arranged in different radial levels or steps on the coupling parts, allowing the connection chambers to be positioned in a compact radial pattern rather than extending axially, thus reducing the overall axial length of the device.
3Adaptability or versatility
If the coupling parts are allowed to rotate relative to each other, then flexibility and stress reduction are improved, but ensuring secure connection and proper alignment becomes more difficult
Solution Approach 1:
The patent introduces connection chambers as intermediary elements between the fluid channels of the first coupling part and the corresponding channels of the second coupling part. These chambers act as mediators that maintain sealed connections during rotation, allowing the coupling parts to rotate relative to each other while ensuring reliable fluid transfer without leakage or misalignment.
4Area of stationary object
If connection chambers are positioned in a common plane, then the device achieves a compact design, but the axial length increases compared to stepped arrangements
Solution Approach 1:
The patent employs stepped arrangement where connection chambers are positioned at different radial levels or steps rather than in a single common plane. This three-dimensional arrangement allows the channels to connect through vertical or radial steps, achieving compact radial positioning while controlling axial length through optimized step heights.
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 secure, flexible, and efficient connection of line sections with different media, reducing stress and allowing for a slim design, while maintaining a secure rotational connection and fluid distribution.
Implementation Method 1
a pivot bearing, in particular in the form of a rolling bearing, such as a ball bearing, can be arranged between the one coupling part and an attachment part
Implementation Method 2
the individual connection chambers in the relevant coupling part are sealed against the environment and against each other in the axial and/or radial direction by means of a sealing system having a plurality of sealing rings
Data Source
AI summary
A coupling device has two releasably interconnected coupling parts which are movably arranged relative to one another in at least one direction of rotation. Each coupling part has fluid channels which are separated in groups from each other and open into respectively assignable connecting spaces. The connecting spaces are located at adjacent end sides of the coupling parts and are separated from one another within a coupling part.