Torsional vibration damper
US4687087A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 1985 |
| Grant date | Aug 18, 1987 |
| Priority date | — |
| Expiry date | Aug 23, 2005 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/129
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
The torsional vibration damper for the drive line of a motor vehicle driven by an internal combustion engine comprises two main parts (1, 3) rotatable in relation to one another about a common rotation axis, which are rotationally elastically coupled with one another through at least one pair of springs (7, 9) arranged in series-connection with one another. A friction damper device (R.sub.2) stressable in the relative rotation of the main parts is connected in parallel with only one of the two springs (7, 9). A further friction damper device (R.sub.1) with a smaller friction torque can be connected additionally in parallel with the series-connection of the two springs (7, 9). In such a torsional vibration damper the friction damping is independent of the torque basic loading and essentially dependent only upon the torque vibration superimposed on this torque basic loading. In this way characteristic resonances of the drive line of a motor vehicle can be damped in a deliberate manner.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.