Damping Adjusting System Perpendicular Seal Ring Venting
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Solution Overview
Problem
Existing damping systems in vehicles can be affected by air bubbles in the damping oil, which cause inconsistent damping forces due to differences in viscosity and pressure-temperature-volume properties, leading to varying armature deflections and damping effects despite equal magnetic coil energization.
Innovation Solution
A damping adjusting system with a guide tube and outer housing featuring a venting borehole that connects the inner and outer chambers, using a seal to prevent oil from entering the intermediate chamber, allowing air bubbles to escape while maintaining the magnetic coil's compartmentalization and minimizing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If air bubbles are present in the inner chamber, then the damping system can be simpler in structure, but the damping force consistency deteriorates due to different viscosity and pressure-temperature-volume properties of air bubbles compared to damping oil
Solution Approach 1:
The patent divides the chamber into two separate sections: an inner chamber for the armature and an outer chamber for damping oil, separated by a wall with a venting borehole. This segmentation allows air bubbles to be vented from the inner chamber to the outer chamber while preventing damping oil from entering the inner chamber, thus maintaining damping force consistency without requiring complete elimination of air bubbles from the system.
Solution Approach 2:
The venting borehole acts as an intermediary pathway between the inner and outer chambers. It allows air bubbles to pass from the inner chamber to the outer chamber while the seal at the borehole prevents damping oil from following. This intermediary structure resolves the contradiction by providing a selective transmission path that benefits from having air bubbles present (simpler structure) while preventing their harmful effects (inconsistent damping).
2Reliability
If a seal is added to prevent damping oil from entering the intermediate chamber through the venting borehole, then damping oil contamination of the magnetic coil is prevented, but the device complexity increases
Solution Approach 1:
The patent combines the venting function and the sealing function into a single integrated structure. The venting borehole is formed directly through the wall, and the seal is positioned at the borehole location, merging the air venting pathway with the oil prevention barrier. This integration minimizes additional complexity while achieving reliable protection of the magnetic coil from damping oil contamination.
Solution Approach 2:
The seal is placed locally at the venting borehole position rather than requiring a complete seal of the entire chamber wall. This localized sealing approach provides the necessary protection against damping oil leakage into the intermediate chamber while minimizing the overall complexity of the sealing system. The seal only needs to function at the specific location where oil could potentially enter.
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 design ensures consistent damping forces by removing air bubbles from the inner chamber, reducing the influence of venting on damping performance and maintaining the magnetic coil's compartmentalization, thus stabilizing vehicle body movements without power consumption increases.
Implementation Method 1
at least one magnetic coil arranged between the outer housing and the guide tube, an electromagnetically movable armature guided in the guide tube along a movement axis
Data Source
AI summary
The application provides a damping adjusting system having a guide tube which is arranged in an outer housing and which comprises a lateral outer wall. The interior of the guide tube being delimited at the end face by a base part. The guide tube can also have a magnet coil; an electromagnetically movable armature which is guided in the guide tube along a movement axis; an exterior which surrounds the outer housing; and a ventilation bore which connects the interior to the exterior and which is guided through the base part and the outer housing. The ventilation bore has two interconnected sections. A first section is guided through the base part and the first section has a first opening arranged on the base part on the interior side and a second opening arranged on the lateral outer wall, and a second section is guided through the outer housing.