Vibration damping device, especially for a blade of a turbojet engine
US4453891A · kind A · utility
12Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 25, 1982 |
| Grant date | Jun 12, 1984 |
| Priority date | — |
| Expiry date | Jun 25, 2002 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/50
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A device is disclosed for vibration damping, especially in fans of turbojets. The root engaged inside a rotor support disk slot is kept against the upper walls of the slot under the exertion of pressure acting on the lower side of the blade root due to the present device. The device includes a torsion bar which is placed beneath the root of the blade and of which one of the ends is attached to a cam resting against the base of the root of the blade. The other end of the torsion bar is provided with a cam inserted on said bar against the base of the root of the blade under stress that was previously conveyed to the bar.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.