Torsional damper type flywheel device
US5025680A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1989 |
| Grant date | Jun 25, 1991 |
| Priority date | — |
| Expiry date | Aug 21, 2009 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16F15/13446
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A torsional damper type flywheel device wherein at least one of flywheel device components, for example, a spring connecting a drive side and a drive side of the flywheel device is asymmetric with respect to an axis of rotation of the flywheel device to form a total, original imbalance with respect to the axis of rotation. The flywheel device includes a compensating imbalance which is equal and opposite to the original imbalance as a vector and is equally divided into two portions each distributed to each of the drive side and the driven side. The compensating imbalance is formed in the drive side and the driven side before assembly of the flywheel device. When the drive side and driven side rotate relative to each other by a torsional angle .theta. and thus a gravity center of the asymmetrically arranged spring rotates by an angle .theta./2 about the axis of rotation, a vector defined by the two portions of the compensating imbalance also rotates by the angle .theta./2 about the axis of rotation. As a result, the flywheel device is maintained in balance at all torsional angles.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.