Rotating Hydraulic Interface with Segmented Flow Channels
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Solution Overview
Problem
In devices with torque-proof structural components connected rotatably, pressure drops occur when transferring hydraulic fluid, leading to increased weight and installation space requirements due to large flow cross sections needed to minimize pressure losses, which negatively impacts engine efficiency and fuel consumption.
Innovation Solution
The device features a second structural component with radially angled blade areas and a sealed interface using a sealing device with thread areas and recirculation channels to reduce pressure losses by leveraging rotational energy and maintaining a high-pressure barrier, allowing efficient hydraulic fluid transfer with minimal power dissipation and wear.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If large flow cross sections are used to minimize pressure losses, then pressure losses are reduced, but weight and installation space requirements increase
Solution Approach 1:
The flow cross section is segmented into multiple smaller channels distributed around the circumference of the second structural component. This segmentation allows the total hydraulic fluid throughput to be maintained while each individual channel has a smaller cross section, reducing the overall weight and installation space requirements compared to a single large channel.
Solution Approach 2:
The solution transitions from a single large radial flow channel to multiple distributed channels arranged circumferentially. This dimensional redistribution maintains the total flow area while optimizing the pressure gradient distribution, thereby reducing pressure losses without requiring excessive weight or space.
2Loss of energy
If large flow cross sections are used to minimize pressure losses, then pressure losses are reduced, but installation space requirements increase
Solution Approach 1:
The hydraulic fluid path is divided into multiple segmented channels distributed around the circumference of the second structural component. This segmentation enables the system to achieve the required total flow capacity with smaller individual channel dimensions, thereby reducing the installation space footprint while maintaining low pressure losses.
Solution Approach 2:
The flow distribution is reorganized from a single large radial path to multiple circumferentially distributed paths. This dimensional redistribution allows the hydraulic system to maintain efficient fluid transfer with reduced pressure losses while occupying less installation space.
3Reliability
If hydraulic fluid is transferred between structural components, then lubrication points are supplied, but pressure drops occur at the interface
Solution Approach 1:
A hydrodynamic bearing interface acts as an intermediary between the first and second structural components, enabling hydraulic fluid transfer while maintaining pressure. The rotating second structural component creates a hydrodynamic film that mediates the fluid transfer across the interface, supplying lubrication points reliably while minimizing pressure drop.
Solution Approach 2:
The patent utilizes hydrodynamic principles where the rotation of the second structural component generates a hydrodynamic pressure field in the lubricating fluid. This hydraulic mechanism enables efficient fluid transfer across the interface between structural components, maintaining lubrication supply while minimizing pressure losses.
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
This configuration reduces pressure losses, enhances sealing, and maintains a wear-free operation with low power dissipation, enabling efficient hydraulic fluid transfer and extended service life while minimizing structural weight and installation space.
Implementation Method 1
a sealing device with thread areas which seal the interface against an environment of the structural components
Implementation Method 2
recirculation channels which redirect the hydraulic fluid into the interface in a manner that the pressure losses are reduced
Implementation Method 3
blade areas which extend substantially at a defined angle in the radial direction in the second structural component
Data Source
AI summary
A device with a torque-proof first structural component and a second structural component that is connected at least in certain areas in a rotatable manner to the first structural component, wherein hydraulic fluid can be guided to lubrication points via the first structural component and the second structural component. The second structural component is embodied with blade areas which are extending substantially at a defined angle in the radial direction inside the second structural component and between which transmission areas for hydraulic fluid of the second structural component are provided, with their flow cross sections decreasing in the transmission areas in the flow direction of the hydraulic fluid.