The invention provides a semi-embedded type air inlet channel with a step. The semi-embedded type air inlet channel comprises an air inlet channel inner channel, a first air inlet channel flow guide face, a second air inlet channel flow guide face extending forwards from the first air inlet channel flow guide face, and a step part higher than the second air inlet channel flow guide face. The height of the upper surface of the step part is the same as that of the upper surface of the lip cover, so that an air inlet of the air inlet channel has no additional orthographic projection area, the stealth performance is improved, and the windward resistance is reduced; the groove which is gradually expanded towards the two sides from front to back is concavely formed in the step part, and the sweepback triangular wedge which is higher than the second air inlet channel flow guide surface is formed at the junction of the front end of the first air inlet channel flow guide surface and the second air inlet channel flow guide surface, so that high-quality incoming flow at the air inlet is ensured.
本发明提供了一种带台阶的半埋入式进气道,包括进气道内通道、第一进气道导流面、第一进气道导流面向前延伸的第二进气道导流面、高于第二进气道导流面的台阶部。其中通过设置所述台阶部上表面的高度与唇罩上表面的高度相同,使进气道进气口无附加的正投影面积,从而提高隐身性能并降低迎风阻力;通过在台阶部中凹设有自前向后向两侧逐渐扩张的凹槽及在第一进气道导流面的前端与第二进气道导流面交界处形成高于第二进气道导流面的后掠三角形尖劈,确保了进气口处的高质量来流。
Semi-embedded type air inlet channel with steps
一种带台阶的半埋入式进气道
2025-01-07
Patent
Electronic Resource
Chinese
IPC: | B64D Ausrüstung für Flugzeuge , EQUIPMENT FOR FITTING IN OR TO AIRCRAFT |
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