Integral transition and convergent section exhaust nozzle
US5016818A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 21, 1989 |
| Grant date | May 21, 1991 |
| Priority date | — |
| Expiry date | Aug 21, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T50/60
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A lightweight multifunction exhaust nozzle is designed with a specially contoured short length transition casing and a correspondingly contoured pair of convergent flaps. The change in flowpath section from circular to rectangular takes place partly within the transition casing and partly between the pair of convergent flaps such that the transition section of the exhaust nozzle is integrated with its convergent section. The convergent flaps are pivotally mounted in the exhaust nozzle so that exhaust gasses impacting the convergent flaps produce counteracting moments about a convergent flap shaft pivot axis thereby reducing the load on the convergent flap actuators.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.