The invention relates to a short cabin unit, a distributed propulsion short cabin and a new energy aircraft. The short cabin unit comprises an air inlet section, an exhaust section and a ducted fan. The ducted fan is arranged between the air inlet section and the exhaust section; the air inlet section is a non-rotary body, and the air exhaust section is a rotary body; the nacelle is designed in a sinking mode, and the sinking mode is achieved in the mode that the distance between a rotating shaft of a ducted fan and a lower lip opening of an air inlet section in the longitudinal direction is smaller than the radius of the ducted fan. And a diffusion section is formed below the air inlet section. According to the nacelle design, the windward area of the nacelle is properly reduced, so that the design flow of the nacelle is matched with the flow of the surface above a wing under the cruise working condition, the adverse effect of a front high-pressure area caused by overflow of the nacelle on the wing is weakened, meanwhile, the differential pressure resistance in front of and behind the nacelle is weakened, and pneumatic matching is achieved.
本发明涉及一种短舱单元、分布式推进短舱和新能源飞行器,短舱单元包括:进气段、排气段和涵道风扇;涵道风扇设置在进气段和排气段之间;进气段为非回转体,排气段为回转体;短舱采用下沉式设计,下沉式采用涵道风扇的转轴与所述进气段的下唇口之间的纵向方向上的距离小于所述涵道风扇的半径的方式来实现;进气段的下方形成有扩压段。本发明的短舱设计,适当降低了短舱迎风面积,使得短舱设计流量与巡航工况下机翼上方表面流量匹配,减弱了短舱溢流造成的前方高压区对机翼的不利影响,并同时减弱短舱前后的压差阻力,实现气动匹配。
Nacelle unit, distributed propulsion nacelle and new energy aircraft
一种短舱单元、分布式推进短舱和新能源飞行器
2025-05-09
Patent
Electronic Resource
Chinese
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