Rotorcraft top fairing having a profile in the shape of a truncated drop of water that is provided with a hump of uneven surface
US9694899B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 19, 2014 |
| Grant date | Jul 4, 2017 |
| Priority date | — |
| Expiry date | May 28, 2035 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64U10/10
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A rotorcraft provided on top with a fairing (3) arranged below the rotary wing of a main rotor of substantially vertical axis of the rotorcraft, and covering a mechanism enabling the blades of the rotary wing of the main rotor to be operated. The streamlined shape of the fairing (3) is shaped longitudinally like a drop of water that is truncated in its rear portion. The truncated portion (6) of the waterdrop-shaped profile of the fairing (3) forms the rear wall of the fairing (3) and is provided with a transversely middle hump (7). Said hump (7) is provided with projections in relief (9) arranged as waves in a longitudinal succession extending along the side walls of the fairing (3), and the truncated portion (6) is arranged in a plane sloping towards the rear of the rotorcraft.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.