Progressive Damping Valve With Centered Annular Element Guidance
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Solution Overview
Problem
The existing damping valve devices exhibit undefined operating behavior due to the radial floating guidance of the variable-diameter annular element within the annular groove, leading to damping force deviations.
Innovation Solution
The annular groove is constructed as a pressure space with inflow and outflow orifices, and centering elements are used to position the valve element at a radial distance from the annular groove base, ensuring uniform pressure action on the valve element's lateral surface and minimizing material accumulation, allowing for improved assembly and production.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the annular element is radially floatingly guided in the annular groove, then the valve element can move freely to generate progressive damping force, but the operating behavior becomes undefined and damping force deviations occur
Solution Approach 1:
The patent applies local quality by introducing centering elements at specific locations within the annular groove to provide localized guidance and positioning for the valve element. This ensures that while the valve element maintains its progressive damping function through radial movement, it does so from a defined starting position, eliminating the undefined operating behavior caused by complete radial floating guidance.
2Ease of manufacture
If the valve element is positioned close to the annular groove base, then material accumulation is reduced and production is simplified, but the lateral surface area acted upon by pressure is decreased
Solution Approach 1:
The patent applies segmentation by dividing the centering function into discrete centering elements positioned at specific locations rather than using a continuous centering structure. This segmentation allows the valve element to be positioned at an optimal distance from the annular groove base that balances both the need for sufficient pressure action surface area and the desire to minimize material accumulation and simplify production.
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 enhances the uniformity of damping force application and improves the flow of the damping medium, reducing damping force deviations and facilitating easier production and assembly of the damping valve device.
Implementation Method 1
the lateral surface of the valve element is acted upon by pressure
Implementation Method 2
flow velocity of a damping medium
Data Source
AI summary
A damping valve device for a vibration damper has a restriction in connection with a valve element movable from an open position into a restriction position depending on the flow velocity of a damping medium inside the restriction. The valve element, as a variable-diameter annular element, moves in closing direction with increasing flow velocity of the damping medium within an annular groove of a valve support. The annular groove is constructed as a pressure space having at least one inflow orifice and at least one outflow orifice. The valve element is positioned at a radial distance from an annular groove base by centering elements.