Tail rotor arrangement with increased thrust for rotary wing aircraft and device for increasing the thrust of such an arrangement
US4585391A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 27, 1983 |
| Grant date | Apr 29, 1986 |
| Priority date | — |
| Expiry date | Sep 27, 2003 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S415/914
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A tail rotor arrangement for rotary wing aircraft, comprising a tunnel of axis X--X transverse with respect to the aircraft and in which is disposed a multi-blade rotor coaxial with respect to the tunnel and generating a transverse air flow. The arrangement comprises a plurality of fixed blades disposed inside of the tunnel downstream of the rotor with respect to the air flow and arranged in at least substantially radial manner with respect to the tunnel in order to be able to recover, in the form of an axial thrust, the energy of rotation of the air flow at the outlet of the rotor. The tail rotor arrangement provides an increase in thrust of the rotors, particularly paired rotors.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.