Vibration Damper Valve Assembly With Switchable Bypass Flow Control
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Solution Overview
Problem
Conventional vibration damper valve assemblies and disc valve packs are complex, lack compact design, and have limited adjustable flow bypass channels, making them inefficient for volume-flow-dependent bypass control and response to low-frequency excitations with low amplitudes.
Innovation Solution
A vibration damper valve assembly with a structurally simple and compact design, featuring fluidic connections between main and bypass flow paths, allowing independent adjustment of bypass window size for each flow direction, and enabling short response times and improved insulation from high-frequency excitations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional vibration damper valve assemblies are designed with complex structures to achieve flow control, then flow control capability is improved, but device complexity and space occupation increase
Solution Approach 1:
The patent combines the bypass channel and main flow path into a single integrated valve assembly. The bypass channel is formed as an integral part of the valve body with the main flow path, eliminating the need for separate bypass components. This merging achieves volume-flow-dependent bypass control while maintaining a compact, space-saving design that reduces device complexity.
2Ease of manufacture
If bypass window size is fixed by design configuration, then manufacturing is simplified, but adaptability for independent adjustment of bypass control is limited
Solution Approach 1:
The bypass window size is made dynamically adjustable through the valve's operation. The bypass channel is designed to allow variable bypass flow depending on the volume flow through the main flow path. This dynamic adjustment capability is achieved through the fluidic connection between the bypass channel and main flow path, enabling the system to adapt bypass control to different operating conditions without complex adjustment mechanisms.
3Speed
If response time is reduced for low-frequency excitations, then control responsiveness is improved, but insulation from high-frequency road signals may be compromised
Solution Approach 1:
The valve assembly utilizes parameter changes in the bypass flow characteristics to achieve frequency-dependent control. The bypass channel is designed with specific dimensions and fluidic connections that create different flow resistance characteristics for different frequency ranges. This allows short response times for low-frequency excitations while maintaining insulation from high-frequency road signals through the inherent damping characteristics of the bypass system.
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 solution achieves short response times and maximum insulation from high-frequency excitations without compromising comfort or driving behavior, while maintaining a compact and space-saving design, allowing integration into existing systems with enhanced performance.
Implementation Method 1
a first disc valve pack, which is arranged on the first surface for controlling the flow of the second main stage flow path, a second disc valve pack, which is arranged on the second surface for controlling the flow of the first main stage flow path
Implementation Method 2
improved insulation from high-frequency road signals
Data Source
AI summary
A vibration damper valve assembly may include a valve main body, first and second main stage flow paths, first and second disc valve packs, and first and second main stage bypass flow paths. The first disc valve pack may include a first outer disc valve pack, a first flow path bypass disc, a first loading element, and a first covering element, with the first loading element being arranged on one side of the first covering element such that a loading force is formed on the first covering element. The second disc valve pack may include a second outer disc valve pack, a second flow path bypass disc, a second loading element, and a second covering element, with the second loading element being arranged on one side of the second covering element such that a loading force is formed on the second covering element.