Torsional vibration damper, especially a dual-mass flywheel

US6962533B2 · kind B2 · utility

Assignee

• ZF Sachs AG · DE

Inventors

• Michael Zottmann · Dittelbrunn, DE
• Jurgen Kleifges · Schweinfurt, DE
• Bernhard Schierling · Kürnach, DE
• Alexander Manger · Grettstadt, DE

Key dates

• Filing date: Nov 18, 2002
• Grant date: Nov 8, 2005
• Expiry date: Jan 27, 2023

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F16F15/13438
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A torsional vibration damper, especially a dual-mass flywheel, has a primary side and a secondary side, which is free to rotate around an axis of rotation relative to the primary side. Starting from a rotation in a direction of rotation around a forward base angle (γ), a forward base spring arrangement exerts a forward base restoring force on the secondary side. Starting from rotation around a forward auxiliary angle (δ), which is greater than the forward base angle (γ), a forward auxiliary spring arrangement exerts an additional forward auxiliary restoring force. Upon rotation around a forward limit angle (ε), both spring arrangements come to a stop together.