Axially translatable variable area convergent/divergent nozzle
US4440346A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 28, 1981 |
| Grant date | Apr 3, 1984 |
| Priority date | — |
| Expiry date | Dec 28, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/34
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable area, three-dimensional, converging/diverging nozzle assembly includes upstream converging nozzle flaps pivotally connected at their forward ends to an axially translatable radially inner unison ring, diverging downstream flaps pivotally connected to the downstream ends of the converging flaps, and external connectors pivotally connected at their downstream ends to the downstream ends of the diverging flaps and pivotally connected at their upstream ends to a radially outer unison ring. The unison rings are interconnected such that translation of either unison ring results in translation of both the converging flaps and the external connectors. The converging flaps rotate as they are moved axially, such as by the use of a cam track and cam follower, thereby changing in the C/D nozzle exit area ratio as the unison ring translates.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.