Counter-torque device with ducted tail rotor and ducted flow-straightening stator, for helicopters
US5498129A · kind A · utility
25Cited by
8References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 1, 1994 |
| Grant date | Mar 12, 1996 |
| Priority date | — |
| Expiry date | Sep 1, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/8254
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The rotor is supported within the duct by a stationary flow-straightener with vanes connecting the wall of the duct to a central body housing the mechanism for driving the rotor. This mechanism is surrounded by a casing equipped with radial arms bearing removable means for fastening to an internal flange of the body, so as to fasten the flow-straightener and the casing rigidly to one another, and both into the duct.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.