公开(公告)号：US20250163984A1

公开(公告)日：2025-05-22

申请号：US18842287

申请日：2023-03-02

Applicant: Stabilus GmbH

Inventor： Ulrich PROBST ,  Alexander REISER ,  Felix BEIB ,  Nico UNKELBACH

IPC: F16F9/02 ,  F16F9/36 ,  F16F9/52

Abstract: The invention relates to a gas pressure spring (50) comprising a working piston (2) which is guided displaceably in a working cylinder (1) along a stroke axis (H), a compensating cylinder (12) which encloses the working cylinder (1), and a compensating piston (10) which is of hollow-cylindrical shape and is guided displaceably in the compensating cylinder (12) along the stroke axis (H). The working cylinder (1) has an open end (1b), at which the compensating cylinder (12) forms a projection (15) beyond the working cylinder (1) with a closed end (15b). The compensating piston (10) separates a working chamber (1a) which is arranged in the working cylinder (1), a compensation chamber (12a) which is arranged between the working cylinder (1) and the compensating cylinder (12), and a restoring chamber (15a) arranged in the projection (15) from one another and is open at an upper side (10a) of the balancing piston (10) facing the working chamber (1a). The gas spring (50) comprises a seal (8) arranged on the upper side (10a) of the balance piston (10) which seals the balance piston (10) to the working cylinder (1) and to the balance cylinder (12).

公开(公告)号：US20240318702A1

公开(公告)日：2024-09-26

申请号：US18577864

申请日：2022-07-14

Applicant: STABILUS GMBH

Inventor： Ulrich PROBST ,  Felix BEIB ,  Alexander REISER ,  Nico UNKELBACH ,  Andreas SEUS-KAPELLEN ,  Christoph LISCHETZKI ,  Michael SCHNEIDER

IPC: F16F9/32 ,  F16F9/02

CPC classification number: F16F9/3235 ,  F16F9/0209

Abstract: A gas pressure spring is provided including a working piston which is guided displaceably in a working cylinder along a stroke axis, a compensating cylinder encloses the working cylinder, and a compensating piston which is of hollow-cylindrical shape and is guided displaceably in the compensating cylinder along the stroke axis. The working cylinder has an open end, at which the compensating cylinder forms a projection beyond the working cylinder with a closed end. The compensating piston separates a working chamber, which is arranged in the working cylinder, a compensating chamber, which is arranged between the working cylinder and the compensating cylinder, and a restoring chamber, which is arranged in the projection from one another. A distance, radially with respect to the stroke axis, of the compensating cylinder from the working cylinder is greater in the stroke range than in an end region of the working cylinder.