Variable-Diameter Damper Valve Throttle for Adaptive Damping
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Solution Overview
Problem
Existing damper valve devices lack the ability to adapt to various application requirements without modifying component dimensions, limiting their versatility in hydraulic systems.
Innovation Solution
The damper valve device allows for adjustable connections between working spaces and pressure chambers, enabling variable throttle points and cross-sectional settings through connecting channels and bypass channels, which can be actuated independently of flow velocity, and includes a flow channel within a hollow piston rod for external actuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the damper valve device uses a fixed throttle point design, then the structure is simple, but the adaptability to different application requirements is poor
Solution Approach 1:
The valve body is designed with variable diameter along its axial direction, creating multiple throttle points with different cross-sectional areas. This dynamic geometric variation allows the device to adapt to different flow conditions and application requirements without requiring multiple separate components, thus improving adaptability while maintaining structural simplicity.
Solution Approach 2:
The patent changes the geometric parameter (diameter) of the valve body along its axial direction to create different throttle characteristics. By varying the diameter parameter, the device can provide different flow resistance characteristics for different applications, enhancing versatility without increasing structural complexity.
2Force
If the throttle point cross section is reduced to increase damping force, then the damping force increases, but the flow velocity increases which may cause instability
Solution Approach 1:
Different sections of the valve body have different diameters, creating local variations in throttle cross-sectional area. This allows specific regions to provide higher damping force while other regions maintain lower flow velocity, resolving the contradiction between increasing damping force and controlling flow velocity stability.
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 allows for targeted adaptation of hydraulic systems to different applications, simplifying regulation and enhancing damping force characteristics by varying the use point and speed of the throttle point, while maintaining a minimum cross section and restoring movement.
Implementation Method 1
the annular groove forms a pressure chamber for the valve body with the pressure chamber being filled with damping medium and brings about a radially outwardly directed widening actuating force on the valve body
Implementation Method 2
the valve body forms a throttle point which reduces the flow cross section in the case of an increasing flow velocity of a damping medium within the throttle point
Data Source
AI summary
A throttle point for a vibration damper, comprising a damper valve carrier with a circumferential annular groove, in which an annular valve body with a variable diameter is arranged. The annular valve body forms, with a guiding face for flowing damping medium, a throttle point, a throttle cross section of which decreases in the case of an increasing flow velocity of the damping medium within the throttle point. The circumferential annular groove forming a pressure chamber which is filled with damping medium. A radially outwardly directed actuating force acts on the valve body, wherein the pressure chamber is a constituent part of a hydraulic system which has a connector to at least one working space of the vibration damper and the hydraulic connection of which to the pressure chamber can be set.