Damping Valve Elastomer Support Segmentation
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing damping valves face challenges in achieving improved outflow behavior and damping force characteristics, particularly when subjected to sudden peak loads, which can result in acoustic noise and inefficient medium flow due to rigid valve disks and limited support mechanisms.
Innovation Solution
The design incorporates multiple flow cross-sections between individual support elements, such as balls, arranged on different pitch circles to provide multiple support points and a stop plane for the valve disk, allowing for controlled lifting movement and enhanced outflow paths through axial openings, enabling flexible installation and varying spring rates for optimized damping performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a simple annular supporting disk is used to limit valve disk lifting, then the structure is simple and easy to manufacture, but acoustic noise occurs due to beating during sudden peak loads
Solution Approach 1:
The supporting disk is segmented into multiple individual support elements (balls) arranged on pitch circles, replacing the simple annular disk design. This segmentation allows the support function to be distributed across multiple elements that can accommodate valve disk lifting more smoothly, reducing beating and acoustic noise while maintaining ease of manufacture through standardized ball components.
Solution Approach 2:
The invention changes the geometric parameters of the supporting disk by introducing multiple pitch circles with different radii and arranging support elements at specific angular intervals. This parameter optimization enables controlled valve disk lifting behavior that reduces impact and acoustic noise during sudden peak loads.
2Reliability
If multiple valve disks are stacked to provide support function, then support characteristics improve, but damping force characteristic curve increases when valve disks are rigid
Solution Approach 1:
Individual support elements (balls) act as intermediaries between the valve disk and the supporting disk structure. These ball elements provide the necessary support function while allowing controlled movement and reducing the transmission of impact forces, thereby maintaining reliable support without excessively increasing the damping force characteristic curve.
3Strength
If rigid valve disks are used, then structural strength is maintained, but outflow behavior deteriorates during sudden peak loads
Solution Approach 1:
The invention introduces dynamic elements (individual support balls) that allow the valve disk to lift and move axially in response to flow conditions. This dynamic capability improves outflow behavior during sudden peak loads by enabling the valve to adapt its position, while the rigid valve disk material maintains structural strength.
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 damping valve's outflow behavior by providing a more efficient and controlled lifting mechanism, reducing acoustic noise and improving damping force characteristics, while allowing for easy production and alignment of support elements.
Implementation Method 1
an elastomeric support in the form of an elastomeric ring which counteracts an impact movement of the valve disk on a support ring
Implementation Method 2
the valve disk is elastically deformable within limits or is mounted so that it can move axially against a spring
Data Source
Figure 1
Figure 2~5
AI summary
Disclosed is a damping valve (1) for a vibration damper, comprising a damping valve body (3) that has at least one duct (13; 15), the discharge side of which is at least partially covered by at least one valve disk (17; 19). When fluid flows against the at least one valve disk (17; 19) via the duct (13; 15), the valve disk lifts off of a valve seat surface (21), the lifting movement being limited by a supporting disk (23) as a stop; on the side facing the valve disk (17; 19), said supporting disk (23) is equipped with an elastomer support (24) formed by a plurality of individual supporting elements (25).