Vibration damper

US6962330B2 · kind B2 · utility

Assignee

• ZF Sachs AG · DE

Inventors

• Bernd Klitsch · Nümbrecht, DE
• Stefan Brehm · Hennef (Sieg), DE
• Michael Müller · Hennef (Sieg), DE

Key dates

• Filing date: Sep 23, 2003
• Grant date: Nov 8, 2005
• Expiry date: Sep 23, 2023

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60G2204/4402
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A vibration damper includes a damping element and a pneumatic spring, where the damping element has a container tube, a fastening part, and a piston rod, and where the pneumatic spring consists of a spring bellows acting as a roll bellows, an outer tube connected to the mass whose vibrations are to be minimized, and a roll-over tube carrying a roll-over profile. The spring bellows forms one boundary of an elastic space filled with a pressurized gas, whereas the roll-over tube seals off the gas space from the container tube and is attached thereto. A stamped and formed support ring, which supports the roll-over tube on the container tube and serves to suppress tilting movements, is installed between the container tube and the roll-over tube.