Propulsive anti-torque nozzle system with external rotating sleeve for a rotorcraft
US8636242B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Nov 12, 2010 |
| Grant date | Jan 28, 2014 |
| Priority date | — |
| Expiry date | Nov 12, 2030 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB64C2027/829
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The system of the present application includes a system duct in fluid communication with a tailboom duct, the system duct having a downstream portion with an anti-torque cutout and a pro-torque cutout. The system further includes an anti-torque nozzle exteriorly proximate to the anti-torque cutout and a pro-torque nozzle exteriorly proximate to the pro-torque cutout. A rotating sleeve is configured to selectively allow airflow into at least one of the anti-torque nozzle and the pro-torque nozzle. A thrust nozzle is in fluid communication with the system duct. An upper clamshell and a lower clamshell are each configured to selectively control airflow in the thrust nozzle.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.