Variable fan nozzle using shape memory material
US10371001B2 · kind B2 · utility
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16References
2Claims
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Key dates
| Filing date | Jan 28, 2016 |
| Grant date | Aug 6, 2019 |
| Priority date | — |
| Expiry date | Sep 3, 2037 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2300/505
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas turbine engine includes a fan, a nacelle arranged about the fan, and an engine core at least partially within the nacelle. A fan bypass passage downstream of the fan between the nacelle and the gas turbine engine conveys a bypass airflow from the fan. A nozzle associated with the fan bypass passage is operative to control the bypass airflow. The nozzle includes a shape memory material having a first solid state phase that corresponds to a first nozzle position and a second solid state phase that corresponds to a second nozzle position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.