Hydraulic Damper Compression Stop Locking Connection
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Hydraulic damper assemblies face challenges in prolonging the life of the hydraulic compression stop arrangement and maintaining low costs while avoiding contamination during assembly, with existing designs requiring substantial modifications and risking debris introduction.
Innovation Solution
A hydraulic compression stop arrangement that transfers pressure to a fixing member through a locking connection, using a plastic insert and metallic fixing member, allowing easy assembly without additional interfaces and reducing the risk of contamination, and is compatible with existing hydraulic damper designs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Duration of action of stationary object
If the hydraulic compression stop arrangement uses a traditional end stop member design, then the assembly is simple, but the life of the compression stop arrangement is shortened due to pressure not being effectively transferred
Solution Approach 1:
A pressure transfer member is introduced as an intermediary component between the insert and the fixing member. This mediator effectively transmits the pressure generated during compression stroke to the fixing member, thereby extending the service life of the compression stop arrangement without significantly increasing overall device complexity.
2Force
If substantial modifications are made to existing hydraulic damper components to accommodate the compression stop arrangement, then the damping force is improved, but the manufacturing cost and assembly complexity increase
Solution Approach 1:
The compression stop arrangement is segmented into separate functional components: an insert that provides the compression stop function, a pressure transfer member that transmits force, and a fixing member that secures the assembly. This segmentation allows each component to be manufactured independently using standard processes and assembled without substantial modifications to the existing hydraulic damper structure, thereby maintaining ease of manufacture while achieving improved damping force.
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 extends the life of the hydraulic compression stop arrangement, reduces production costs, and minimizes the risk of contamination during assembly, while providing additional damping force during the compression stroke without requiring substantial modifications to existing hydraulic damper components.
Implementation Method 1
a main piston slidably disposed in the fluid chamber and movable along the center axis dividing the fluid chamber into a compression chamber between the first end and the main piston and a rebound chamber between the second end and the main piston
Implementation Method 2
Hydraulic damper with a hydraulic compression stop arrangement generates an additional damping force over a predefined section of the piston rod as the piston rod travels during a compression stroke
Data Source
AI summary
A hydraulic damper includes a hydraulic compression stop arrangement having an insert including a bottom and a fixing member including a body. The bottom is attached to the body through a locking connection preventing axial movement of the insert and transferring pressure exerted on the insert to the fixing member and allowing the cavity of the insert to receive the additional piston during the compression stroke to provide an additional damping force. The body includes a locking plate and the bottom includes a locking yoke with the locking yoke being secured to the locking plate to define the locking connection. The fixing member includes a head and the locking plate extends radially outwardly from the head defining a recess extending about the center axis. The locking yoke, having an arcuate shape and an L-shaped cross section, extends axially outwardly from the bottom to engage the recess forming the locking connection.