Torsional vibration damper with rolling bodies as coupling

US5976020A · kind A · utility

Assignee

• Mannesmann Sachs AG · DE

Inventors

• Norbert Lohaus · Schweinfurt, DE
• Jorg Sudau · Niederwerrn, DE

Key dates

• Filing date: Sep 4, 1997
• Grant date: Nov 2, 1999
• Expiry date: Sep 4, 2017

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10T74/2111
• WIPO field: Mechanical elements
• WIPO sector: Mechanical engineering

Abstract

A torsional vibration damper has a transmission element on the drive side and a transmission element on the driven side which is rotatable relative to the drive-side transmission element against the action of a damping device. The damping device serves to transmit torque between the two transmission elements and has at least one coupling body that moves along at least one guide path which is formed in one of the transmission elements. This coupling body is displaceable at least in the circumferential direction and is in a working connection with the other transmission element via a driver device so that a deflection of one of the transmission elements in the circumferential direction by a relative movement of the coupling body results in a deflection of the other transmission element. Each guide path is provided with a curvature having a curvature location at the maximum distance from the axis of rotation. The coupling body is preferably constructed with its own curvature at least along its rolling region facing the guide path, wherein the coupling body has a projection extending in the direction of a transmission element having a driver device. The projection engages in a material…