公开(公告)号：US20230258239A1

公开(公告)日：2023-08-17

申请号：US18108035

申请日：2023-02-10

Applicant: STABILUS GmbH

Inventor： Ulrich Probst ,  Alexander Reiser ,  Felix Beib ,  Nico Unkelbach

IPC: F16F9/32 ,  F16F9/02

CPC classification number: F16F9/3235 ,  F16F9/02 ,  F16F2226/04 ,  F16F2234/08

Abstract: A gas pressure spring is provided including a pressure tube and a fluid with a fluid pressure enclosed by the pressure tube in a fluid-tight manner in an operating state of the gas pressure spring. A wall of the pressure tube has a local taper, the taper forming a predetermined breaking point of the wall adapted to open to release a portion of the fluid from the pressure tube in a controlled manner when the fluid pressure exceeds a limit pressure. A wall thickness of the wall has a line-shaped minimum within the taper, the wall thickness increasing monotonically from the minimum to an edge of the taper in all circumferential directions around a longitudinal axis of the pressure tube. Also provided is a method of manufacturing the gas pressure spring.