Pressurised Agent Feeding Device Segmentation
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Solution Overview
Problem
Existing pressure medium transmission devices suffer from significant losses and damage due to metallic contact and lack of seals, restricting their application and causing pressure drops and operational inaccuracies.
Innovation Solution
The design features two ring disks with cooperating sealing surfaces and annular chambers, supported by a radially protruding shoulder, with sealing gaps and projections to maintain a floating state, and includes a piece of pipe to connect the annular space with adjacent components for lubrication and cooling, ensuring reliable operation and minimizing losses.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a one-piece ring is used as the first component with lateral leakage-accommodating collection chamber, then the device can be constructed simply, but medium losses increase considerably due to lateral flow and pressure drops
Solution Approach 1:
The first component is divided into two separate ring disks instead of using a one-piece ring. This segmentation allows the medium to be contained between the two disks, preventing lateral leakage into the collection chamber and eliminating the need for a lateral leakage-accommodating structure, thereby reducing medium losses while maintaining construction simplicity.
Solution Approach 2:
The second rotating component acts as an intermediary barrier between the pressure medium and the lateral collection chamber. By positioning this component between the medium flow path and the chamber, it prevents medium from escaping laterally, thus reducing medium losses without requiring a complex one-piece ring structure.
2Device complexity
If no seals are provided between the two components, then the construction remains simple, but metallic contact causes damage and device failure
Solution Approach 1:
Pressure medium is utilized to generate a floating state between the two ring disks through hydrodynamic pressure. This pneumatic/hydraulic cushion eliminates direct metallic contact between the components, preventing wear and damage while maintaining a simple construction without additional seals or mechanical contact elements.
Solution Approach 2:
The operating parameters of the pressure medium are optimized to generate sufficient hydrodynamic pressure that creates a stable floating state between the components. By adjusting pressure, velocity, and geometric parameters, the system achieves reliable non-contact operation without adding complex sealing structures.
3Device complexity
If pressure medium is transmitted via a lateral collection chamber, then the device structure is simplified, but operating pressure drops and sufficient operating pressure is not available
Solution Approach 1:
The pressure transmission path is segmented into distinct zones by the two ring disks, creating a contained pressure chamber between them. This segmentation prevents pressure dissipation that would occur in a lateral collection chamber, maintaining sufficient operating pressure for reliable device operation.
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 allows for efficient pressure medium transmission with reduced losses, prevents damage from friction, and ensures reliable operation over a long period by maintaining a floating state and providing lubrication and cooling to adjacent components.
Implementation Method 1
the two ring disks 12, 13 are held in a floating state by the medium transmitted in this way
Implementation Method 2
cooperating sealing surfaces provided on the rotating second component, the distance between which is dimensioned smaller by the dimension of the sealing gaps formed between these and the contact surfaces
Implementation Method 3
sufficient lubrication by the medium to be transmitted, and also of adjacent components, should always be ensured
Implementation Method 4
a piece of pipe is inserted into the two annular disks to connect the annular space with the components arranged laterally, in which recesses in the area of the annular space are incorporated in the form of slots, bores or the like
Data Source
Figure 1
Figure 2~3
Figure 4
AI summary
In a device (1) for transferring a medium from a stationary component (11) to a rotating component (21) and from the latter to a servo device (101), wherein the stationary component (11) is arranged to be axially displaceable in a housing (2) and the position of this component (11) is adjustable by means of lateral sealing gaps (33, 34) which can be influenced by an annular chamber (31, 32), the stationary component (11) is composed of two symmetrical annular disks (12, 13) arranged with a small lateral distance to each other, enclosing an annular space (14), each of which is connected to a supply line (3 or 4) and to one of the pressure chambers (106 or 107) of the servo device (101). The ring discs (12, 13) are slidably mounted on two bolts (15 and 16) and flow channels (17, 18) connected to the supply lines (3, 4) and the pressure chambers (106, 107) are incorporated into the bolts (15, 16).