Nested Connecting Element for Damping Element Gas Spring Volume
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Solution Overview
Problem
Existing damping elements in vehicles often have a connecting element that extends non-coaxially, leading to a small volume of compressible medium, resulting in a steep and uncomfortable spring characteristic due to limited space, which affects vibration isolation between the passenger cell and wheels or chassis.
Innovation Solution
The connecting element is designed with a tube cross-section matching the cylinder's inner diameter, tightly connected to the cylinder, allowing the compressible medium to occupy the entire connecting element and part of the cylinder, with a displaceable piston limited by the connecting element's end face, providing a larger volume for a flatter spring characteristic and easy installation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the connecting element is designed as a cylindrical tube extending at an angle to the cylinder axis, then the connecting element can be routed around other components, but the volume of compressible medium is reduced leading to a steep spring characteristic
Solution Approach 1:
The connecting element is inserted into the cylinder, nesting one component within another. This allows the connecting element to extend non-coaxially for routing flexibility while utilizing the cylinder's internal space to maintain a large volume of compressible medium, resolving the contradiction between adaptability and volume.
2Ease of operation
If the connecting element extends non-coaxially, then installation flexibility is improved, but the spring characteristic becomes steep and uncomfortable
Solution Approach 1:
By nesting the connecting element inside the cylinder, the design achieves non-coaxial extension for installation flexibility while maintaining sufficient compressible medium volume to avoid steep spring characteristic, thus eliminating the harmful effect.
3Volume of moving object
If the connecting element is tightly connected to the cylinder, then the volume of compressible medium is maximized, but the manufacturing complexity increases
Solution Approach 1:
The connecting element's own end face serves as the stop for the separating piston, eliminating the need for separate stopping mechanisms. This self-service approach achieves tight connection for maximum compressible medium volume while keeping manufacturing simple.
4Stability of the object's composition
If the end face of the connecting element is aligned perpendicular to the cylinder axis, then tilting of the separating piston is avoided, but the design flexibility is reduced
Solution Approach 1:
The connecting element's end face automatically serves as the stop for the separating piston, with its orientation perpendicular to the cylinder axis. This self-service design ensures piston alignment stability while the connecting element itself can still be shaped flexibly to adapt to installation conditions.
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 results in a flatter spring characteristic and reduced temperature influence on the gas spring, with easy production and installation, avoiding bending moments and allowing coaxial loading, thus improving vibration isolation comfort and reliability.
Implementation Method 1
a cylinder (1) in which a piston (2) is slidably arranged, which divides the interior of the cylinder into a first cylinder chamber (3) and a second cylinder chamber (4), both of which are filled with a hydraulic medium, with a throttle connection between the first and the second cylinder chamber (3, 4)
Implementation Method 2
an area of the connecting element (8), which is filled with a pressurized compressible medium
Data Source
Figure 1
Figure 2~5
AI summary
The damping element has a cylinder (1) in which a piston (2) is displaceably arranged, so that the cylinder interior is divided into two cylinder chambers (3,4). An end portion (10) of a connecting element (8) is extended coaxially to the cylinder, such that the outer diameter of the end portion is firmly and tightly connected with the inner diameter of the cylinder. A movable separating piston (11) is slidably located in the cylinder, so that the displacement of the separating piston is limited to the end region of the cylinder through the end face (13) of the connecting element.