Arrangement for damping torsional vibrations

US6712706B2 · kind B2 · utility

Assignee

• LuK Lamellen und Kupplungsbau Beteiligungs KG · DE

Inventors

• Johann Jackel · Baden-Baden, DE
• Hartmut Mende · Bogen, DE
• Michael Carsten Bosse · Baden-Baden, DE

Key dates

• Filing date: Mar 14, 2002
• Grant date: Mar 30, 2004
• Expiry date: May 18, 2022

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F1/13
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

The coaxial first and second flywheels of a torsional vibration damper, e.g., in the power train of a motor vehicle, are rotatable relative to each other against the opposition of one or more arcuate coil springs which is or are confined in an annular chamber defined by at least one of the flywheels. One end of the coil spring or each coil spring bears, directly, or indirectly, against a single retainer or against one of several discrete retainers on one of the flywheels, and the other end of the coil spring or each coil spring bears, directly or indirectly, against a single retainer or against one of several discrete retainers of the other flywheel. At least one slide is interposed between the radially outermost portions of discrete convolutions provided between an internal surface of the at least one flywheel and one or more discrete coil springs, one for each slide. The slides are clamped to selected convolutions of the respective coil springs against lengthwise and/or radial movement away from the respective coil spring or springs.