| 摘要 |
<p>A low drag ducted ram air turbine generator and cooling system is provided. The ducted ram air turbine generator and cooling system has reduced drag while extracting dynamic energy from the air stream during the complete range of intended flight operating regimes. A centerbody/valve tube (57) having an aerodynamically shaped nose (76) is slidably received in a fairing (30) and primary structure (50) to provide a variable inlet area. An internal nozzle control mechanism (115) attached to the valve tube positions nozzle control doors (70) to provide variable area nozzles directing air flow to the turbine stator (80) and rotor blades (62) to maintain optimum generator efficiency.</p> |
