Thrust vectoring apparatus for a VTOL aircraft
US4205813A · kind A · utility
24Cited by
8References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 19, 1978 |
| Grant date | Jun 3, 1980 |
| Priority date | — |
| Expiry date | Jun 19, 1998 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Cascades and associated blocker doors are provided in the lower section of a turbofan engine nacelle such that when the blocker doors are closed the bypass flow is diverted through the open cascades to produce vertical thrust. Vanes are provided in the cascades to assist in directing the diverted airflow in the downward direction. The upper section of the bypass duct is isolated from the lower cascade section by way of horizontal struts extending across the bypass duct. A pair of outer doors may be provided over the cascades such that, when opened, they act to provide side skirts to guide the downward flow of air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.