Rotary ramjet engine with flameholder extending to running clearance at engine casing interior wall
US6694743B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 23, 2002 |
| Grant date | Feb 24, 2004 |
| Priority date | — |
| Expiry date | Aug 30, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05D2250/25
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A rotary ramjet engine. A rotary ramjet engine is provided operating with a very low axial flow component. The engine has a closely housed rotor and shaft mounted for rotary motion with respect to an engine case. A plurality of ramjet combustors are provided at the periphery of the rotor, and a set of spaced apart helical strakes are provided extending outward from the surface portion of the rotor toward the interior wall of the engine case, less a running clearance therefrom. A centerbody is provided for each ramjet inlet. The centerbody is disposed along a helical axis parallel to the strakes, and includes a leading edge structure, opposing sidewalls, and a shaped cavity, and a rear end wall. Each set of strakes cooperate to define, rearward of the rear end wall of each inlet centerbody, a combustion chamber for mixing therewithin and inlet fluid and burning fuel therein to form hot combustion gases therefrom. A ramjet outlet nozzle structure, including a converging ramjet nozzle throat, and diverging ramjet nozzle are provided for receiving the hot combustion gases and discharging, at a preselected helical angle to the plane of rotation of the rotor, a jet of hot combustion exha…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.