Spring-and-shock absorber system having differential roll bellows

US6817597B1 · kind B1 · utility

Assignees

• Daimlerchrysler AG · US
• ContiTech Luftfedersysteme GmbH · DE

Inventors

• Gerhard Thurow · Garbsen, DE
• Martin Winkler · Omaha, US
• Bernd Acker · Eßlingen, DE
• Christoph Bank · Lehrte, DE
• Paul Cerny · Wennigsen (Deister), DE
• Peter Gönnheimer · Waiblingen, DE
• Hans-Peter Klander · Eßlingen, DE
• Darko Meljnikov · Echterdingen, DE
• Matthias Romer · Pfeffingen, CH
• Karl-Heinz Ross · Großenhain, DE
• Rudiger Rutz · Köngen, DE

Key dates

• Filing date: Jun 24, 2002
• Grant date: Nov 16, 2004
• Expiry date: Jun 24, 2022

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B60G2206/4222
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A combined spring-and-shock-absorber system for supporting wheel suspensions or axles on a vehicle body has a tubular roll bellows (U-bellows) arranged between a wheel-bearing or wheel-controlling connection and a connection on the vehicle body side, the bellows being arranged between an outer bell and a rolling piston, the outer bell and the rolling piston, in each case, having at least partially varying diameters over the height of the corresponding component, and having walls that contact the tubular roll bellows. Both ends of the tubular roll bellows being sealingly secured on the rolling piston at segments having different diameters, the lower mounting section having a larger diameter than the upper mounting section. For this purpose, a tubular roll bellows is used, which is configured as a differential roll bellows, whose interior is filled with a fluid and communicates with a hydraulic accumulator supported on the chassis and/or vehicle body. On the basis of the present invention, a combined spring-and-shock-absorber system is developed, which contains a friction-free displacement device in a thin construction.