Dashpot with amplitude-dependent shock absorption

US7441639B2 · kind B2 · utility

Assignee

• ThyssenKrupp Bilstein Suspension GmbH · DE

Inventors

• Ole Götz · Braunschweig, DE
• Andreas Nevoigt · Hagen, DE
• Walter Burböck · Stuttgart, DE
• Dirk Feist · Herne, DE
• Claus Weimann · Wetter, DE
• Ralf Wilhelm · Bad Wildbad, DE
• Ulrich Hartig · Losheim am See, DE
• Elmar Lauer · Weiskirchen, DE
• Markus Schmidt · Trier, DE
• Andreas Kaup · Nonnweiler, DE
• Tina Eisenring · Losheim am See, DE
• Joachim Körner · Losheim am See, DE
• Alfons Schreiner · Hermeskeil, DE
• Thomas Jost · Schillingen, DE

Key dates

• Filing date: Mar 20, 2007
• Grant date: Oct 28, 2008
• Expiry date: Mar 20, 2027

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F2230/007
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A dashpot featuring amplitude-dependent shock absorption, especially intended for the wheel of a vehicle and including a hydraulically parallel cylindrical pressure-compensation chamber (8). The pressure-compensation chamber is partitioned by an axially displaceable floating piston (10). At least one face (25) of the floating piston is provided with a resilient bumper (18). The object is a dashpot with a floating piston that arrives more gently at its limit inside the pressure-compensation chamber (8). The bumper is accordingly accommodated in an axial hollow (17) that extends through the body (15) of the floating piston.