Dissimilarly shaped aircraft nozzles with tandem mixing devices, and associated systems and methods
US12162618B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 10, 2022 |
| Grant date | Dec 10, 2024 |
| Priority date | — |
| Expiry date | Oct 10, 2042 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2260/81
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Dissimilarly shaped aircraft nozzles with tandem mixing devices, and associated systems and methods are disclosed. An ejector nozzle in a representative embodiment includes a nozzle duct having a nozzle flow axis, a first axial position and a second axial position. The nozzle duct has a first cross-sectional shape at the first axial position, and a second cross-sectional shape at the second axial position, with the second shape being geometrically non-similar to the first shape. The nozzle further includes a fan flow duct portion and a core flow duct portion, both upstream of the first axial position. An ejector duct is positioned in fluid communication with the nozzle duct, and has at least one portion with a cross-sectional shape geometrically similar to the second cross-sectional shape. A first mixing device is positioned proximate to the first axial position to mix fan flow in the fan flow duct portion with core flow in the core flow duct portion, and a second mixing device is positioned downstream of the first mixing device to mix the fan flow and the core flow with flow through the ejector duct, and direct the combined flow generally along the nozzle flow axis. A representati…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.