Method and device for the reduction of the oscillations of a divergent nature of the fuselage of a helicopter
US5242130A · kind A · utility
24Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 29, 1992 |
| Grant date | Sep 7, 1993 |
| Priority date | — |
| Expiry date | Jun 29, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S416/50
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
Method and device for the reduction of the oscillations of a divergent nature induced in the fuselage (2) of a helicopter (1) by its rotary wings (3) when they are turning. According to the invention, the oscillations are detected (at 17, 18) and they are converted (at 19, 20) into electrical signals, which are used (at 13) in order to produce pitch variations of the blades (4) of the rotary wings (3), in such a way that a rotating torque vector opposing said oscillations results.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.