Fixed nozzle thrust augmentation system
US7788899B2 · kind B2 · utility
15Cited by
9References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 29, 2005 |
| Grant date | Sep 7, 2010 |
| Priority date | — |
| Expiry date | May 1, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A thrust augmentation system for a mixed exhaust turbofan engine comprises an augmentation duct, a combustion system and a fixed area exhaust nozzle. The augmentation duct receives primary and secondary air of the turbofan engine and is positioned co-axially with an exhaust case of the turbofan engine. The combustion system increases the thrust produced by the mixed exhaust of the turbofan. The fixed area exhaust nozzle has a throat area larger than that which would maximize the non-augmented thrust.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.