Adjustable Gas Spring Design for Variable Stroke Control
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Summary
Problems
Conventional gas pressure springs lack adjustability in piston rod stroke, limiting their application in scenarios requiring variable movement according to specific criteria.
Innovation solutions
A gas pressure spring design featuring a first and second hollow chamber with a movable piston and a valve device for locking and releasing the second piston, allowing adjustable stroke by fluidly connecting or disconnecting the chamber volumes, enabling variable piston rod movement through a pneumatically actuated valve system.
TRIZ Analysis
Specific contradictions:
General conflict description:
Principle concept:
If a conventional gas pressure spring with a fixed chamber design is used, then the structure is simple and reliable, but the piston rod stroke cannot be adjusted
Why choose this principle:
The single chamber is divided into two separate hollow chambers (first hollow chamber and second hollow chamber), each capable of independently containing the piston rod at different positions. This segmentation allows the piston rod stroke to be adjusted by selecting which chamber is active, providing adaptability while keeping each individual chamber structurally simple.
Principle concept:
If a conventional gas pressure spring with a fixed chamber design is used, then the structure is simple and reliable, but the piston rod stroke cannot be adjusted
Why choose this principle:
The second hollow chamber is arranged inside the first hollow chamber, creating a nested configuration. This nesting allows both chambers to coexist within the same overall structure without significantly increasing the external dimensions, enabling stroke adjustment while maintaining a compact and relatively simple overall device structure.
Application Domain
Data Source
AI summary:
A gas pressure spring design featuring a first and second hollow chamber with a movable piston and a valve device for locking and releasing the second piston, allowing adjustable stroke by fluidly connecting or disconnecting the chamber volumes, enabling variable piston rod movement through a pneumatically actuated valve system.
Abstract
The invention relates to a gas pressure spring (1) with a second piston (16) arranged movably between a first axial end section (10a) and a first piston (14) in a first hollow chamber (10) or a second hollow chamber (15) and with means ( 18) for locking and releasing the second piston (16) to adjust a stroke of the first piston rod (12). The invention also relates to a method for operating the gas pressure spring (1).