Method and linkage for positioning a convergent flap and coaxial arc valve
US4767055A · kind A · utility
9Cited by
10References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 27, 1987 |
| Grant date | Aug 30, 1988 |
| Priority date | — |
| Expiry date | Mar 27, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A convergent/divergent gas turbine engine exhaust nozzle having reverse thrust capability includes a concentric flap (22) and arc valve (36) pivotable about a common axis (34). A method and linkage (48) schedule the opening of the valve (36) in response to rotation of the flap (22) into a blocking position with respect to the normally aftward flow of the exhaust gas (12). The arc valve (36) is accelerated by the linkage (48) to full opening speed prior to unsealing an alternate, thrust reversing flow passage (38).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.