Disc Spring Intake Valve for Shock Absorber Damping
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Solution Overview
Problem
Existing shock absorbers face challenges in maintaining sufficient fluid flow while ensuring durability, particularly in controlling fluid flow characteristics during compression and rebound strokes, which affects their ability to effectively dampen vibrations.
Innovation Solution
The implementation of full displacement design valving for check valve assemblies in shock absorbers, featuring compression and rebound check valve assemblies with specific disc designs that allow for controlled fluid flow, including the use of interface discs with projections and orifice discs to manage fluid displacement and damping characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional check valve assemblies are used in shock absorbers, then the structure is simpler and easier to manufacture, but the fluid flow control is insufficient and durability is compromised
Solution Approach 1:
The check valve assembly is segmented into multiple functional components: a first check valve with a first disc for compression stroke control, a second check valve with a second disc for rebound stroke control, and an interface disc with projections. Each segment handles specific fluid flow control tasks, allowing the system to maintain durability while managing fluid flow effectively through divided functional responsibilities.
Solution Approach 2:
The interface disc introduces a new dimensional element with projections that extend into the compression valve assembly, creating a three-dimensional fluid control architecture. This dimensional addition allows for more sophisticated fluid flow management without increasing the basic two-valve structure, resolving the contradiction between complexity and performance.
2Productivity
If full displacement design valving is implemented, then fluid flow control and damping performance are improved, but the device complexity increases
Solution Approach 1:
The interface disc serves multiple functions simultaneously: it acts as a structural support element, provides fluid flow pathways through its projections, interfaces both check valves to the compression valve assembly, and contributes to damping control. This multi-functionality achieves full displacement design valving benefits without proportionally increasing complexity.
Solution Approach 2:
The interface disc merges the functions of fluid flow management, structural support, and valve integration into a single component. By combining these functions, the design achieves improved fluid flow control efficiency while avoiding the complexity that would result from separate components for each function.
3Force
If compression and rebound check valve assemblies are used, then vibration dampening is improved, but fluid flow restrictions occur
Solution Approach 1:
The check valve discs are designed to dynamically respond to pressure differentials during compression and rebound strokes. During compression, the first disc opens to allow fluid flow; during rebound, the second disc opens. This dynamic operation ensures sufficient fluid flow quantity while maintaining the damping force generation capability throughout the shock absorber cycle.
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 solution ensures sufficient fluid flow while maintaining durability, effectively dampening vibrations by optimizing the damping force generation during both compression and rebound strokes, thus enhancing the overall performance of the shock absorber.
Implementation Method 1
a disc spring assembly including a first disc spring and a second disc spring. The first disc spring is biased against the first disc to engage the first disc with the first valve body when the first disc is in the closed position. The second disc spring is biased against the second disc to engage the second disc with the second valve body when the second disc is in the closed position.
Data Source
AI summary
A disc valve assembly for a shock absorber opens due to axial movement of a valve disc. The valve disc is biased against a valve body by a valve spring. The valve spring is designed to provide a circumferentially asymmetrical load biasing the valve disc against the valve body. The disc valve assembly can be used as a piston rebound valve assembly, a piston compression valve assembly, a base valve compression valve assembly or a base valve rebound valve assembly.