Shock Absorber Damping Valve Layout for Compact Flexible Packaging
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Solution Overview
Problem
Existing vibration dampers for motor vehicles face challenges in achieving maximum flexibility and compactness in the arrangement of their damping valves due to differing installation space requirements.
Innovation Solution
A vibration damper design featuring an outer tube, inner tube, and working piston with coaxially arranged damping valve devices, allowing for different orientations and positions of the damping valves, including compression and extension stage valves, mounted on a middle tube with fluid-tight connections and sealing elements for space-saving and efficient fluid flow control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If damping valves are arranged in a conventional fixed configuration, then the structural simplicity is maintained, but the adaptability to different installation spaces is reduced
Solution Approach 1:
The damping valves are designed with adjustable orientations and positions relative to the piston rod axis. The first damping valve can be oriented at a first angle and the second damping valve at a second angle, allowing dynamic adaptation to different installation spaces while maintaining functional effectiveness
Solution Approach 2:
The damping valve system is divided into separate controllable units (first damping valve and second damping valve) that can be independently positioned and oriented. This segmentation allows each valve to be optimally arranged for different installation configurations without affecting the other valve's performance
2Adaptability or versatility
If damping valves are arranged with high flexibility in orientation, then the adaptability to installation space is improved, but the structural complexity increases
Solution Approach 1:
The damping valve device is designed as a universal assembly that can function in multiple orientations and positions. The same basic valve structure can be installed with different angular orientations relative to the piston rod, making the system multi-functional and adaptable to various installation scenarios without requiring different valve designs
3Volume of moving object
If compact arrangement of damping valves is implemented, then the space utilization is improved, but the fluid flow efficiency may be compromised
Solution Approach 1:
The damping valves are arranged in three-dimensional space around the piston rod at different angular positions and orientations. This spatial distribution allows compact packaging within the shock absorber housing while maintaining adequate fluid flow paths from the working chambers through each valve to the return line, preventing flow restrictions despite the compact arrangement
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 provides a compact and flexible arrangement of damping valves, ensuring efficient fluid flow and damping performance in both compression and extension stages, enhancing the overall efficiency and space utilization of the vibration damper.
Implementation Method 1
a first valve body forming a first fluid connection between the first and second working chambers when the spool is in the first position, and a second valve body forming a second fluid connection between the first and second working chambers when the spool is in the second position
Data Source
AI summary
A vibration damper for a motor vehicle comprises an outer tube and an inner tube arranged coaxially thereto, a working piston which is arranged axially movably inside the inner tube and divides the interior of the inner tube into a working chamber on the piston rod side and a working chamber remote from the piston rod, a first damping valve device with a first inlet connector for inlet of hydraulic fluid into the first damping valve device, and a second damping valve device with a second inlet connector for inlet of hydraulic fluid into the second damping valve device, wherein the first inlet connector extends radially inwardly through a first middle tube opening and an inner tube opening into the working chamber remote from the piston rod.