Impact damper

US5285877A · kind A · utility

Assignee

• Boge GmbH · DE

Inventors

• Hartmut Bonenberger · Puchheim, DE
• Holger Kirchner · Ruppichteroth, DE
• Kurt Wagner · Gröbenzell, DE

Key dates

• Filing date: Sep 8, 1992
• Grant date: Feb 15, 1994
• Expiry date: Sep 8, 2012

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60R19/40
• WIPO field: Transport
• WIPO sector: Mechanical engineering

Abstract

Impact damper for motor vehicles, the impact damper having two tubes which can be pushed one inside the other, the inner tube consisting of a first and second fluid chamber and a gas chamber separated from the first fluid chamber by a separating piston. A third fluid chamber, separated from the second fluid chamber by a work piston can extend the tubes relative to one another by changing the pressure within the fluid chambers.