Shock Absorber Post Port Valve Integration
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Solution Overview
Problem
Conventional continuous damping control shock absorbers with dual solenoid valve structures face challenges in productivity due to complex mounting processes, increased weight, and material costs, as well as defects related to concentricity issues during welding of separate separator tubes.
Innovation Solution
A continuous damping control shock absorber design featuring a dual solenoid valve structure with a post port or bridge port that allows for direct communication between the rebound and compression solenoid valves, eliminating the need for a separate separator tube, thereby simplifying the structure and improving alignment, reducing weight, and minimizing defects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a separate separator tube is installed to surround the rebound separator tube and compression separator tube, then the reduction in compression damping force is improved, but the outer diameter of the base shell increases, leading to increased weight and material cost
Solution Approach 1:
The patent merges the separator tube function with the base shell by forming a groove on the inner circumferential surface of the base shell. This groove integrates the separator tube's oil flow separation function into the base shell structure itself, eliminating the need for a separate separator tube and reducing overall weight while maintaining compression damping force
2Ease of manufacture
If a separate separator tube is installed by welding method, then the structure is completed, but it is difficult to align the concentricity between valve ports, increasing defect rate and lowering productivity
Solution Approach 1:
The separator tube function is merged into the base shell through a groove structure, eliminating separate welding operations. This integration simplifies the manufacturing process, improves alignment accuracy, reduces defect rates, and enhances productivity
Solution Approach 2:
The groove on the inner circumferential surface of the base shell is segmented into a first groove for the rebound separator tube and a second groove for the compression separator tube. This segmentation allows independent positioning and mounting of each separator tube, improving alignment accuracy and reducing defects while maintaining productivity
3Adaptability or versatility
If a separate separator tube is installed, then the dual solenoid valve structure is completed, but the outer diameter of the base shell increases, leading to increased material cost
Solution Approach 1:
The separator tube function is merged into the base shell structure through grooves, eliminating the need for additional separator tube materials. This reduces material cost while maintaining the dual solenoid valve structure's adaptability for different damping force adjustments
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 design enhances productivity by simplifying the mounting process, maintains compression damping force, reduces defect rates, and minimizes weight and material costs compared to prior art.
Implementation Method 1
a rebound solenoid valve and a compression solenoid valve which are installed in a post port provided with at least one communication hole to directly communicate the rebound solenoid valve and the compression solenoid valve
Data Source
AI summary
Disclosed is a continuous damping control shock absorber, which has a dual solenoid valve structure in which a rebound solenoid valve and a compression solenoid valve are provided, including a post port mounted on an outer side of a base shell and in which the rebound solenoid valve and the compression solenoid valve are installed to be spaced apart from each other by a predetermined distance, wherein the post port is provided with at least one communication hole to directly communicate the rebound solenoid valve and the compression solenoid valve.