US 12,253,049 B2
Hypersonic large internal contraction ratio air inlet channel having stepless adjustable air release valve and control method
Hexia Huang, Jiangsu (CN); Zhengkang Lin, Jiangsu (CN); Xuebin Tang, Jiangsu (CN); Yuan Qin, Jiangsu (CN); Huijun Tan, Jiangsu (CN); Hang Zhang, Beijing (CN); Ziren Wang, Beijing (CN); Chao Li, Beijing (CN); and Xiru Xu, Beijing (CN)
Assigned to NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS, Jiangsu (CN); and BEIJING AEROSPACE TECHNOLOGY INSTITUTE, Beijing (CN)
Appl. No. 18/556,356
Filed by NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS, Jiangsu (CN); and BEIJING AEROSPACE TECHNOLOGY INSTITUTE, Beijing (CN)
PCT Filed Mar. 21, 2022, PCT No. PCT/CN2022/081946
§ 371(c)(1), (2) Date Oct. 20, 2023,
PCT Pub. No. WO2022/222661, PCT Pub. Date Oct. 27, 2022.
Claims priority of application No. 202110428018.1 (CN), filed on Apr. 21, 2021.
Prior Publication US 2024/0174371 A1, May 30, 2024
Int. Cl. F02K 7/10 (2006.01); B64D 33/02 (2006.01); F02C 7/042 (2006.01)
CPC F02K 7/10 (2013.01) [B64D 33/02 (2013.01); F02C 7/042 (2013.01); B64D 2033/026 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A hypersonic large internal contraction ratio air inlet channel having a stepless adjustable air release valve, comprising:
an air inlet channel front body;
an air-discharging slit cover plate extending backwards from the air inlet channel front body;
a lip cover disposed on the air-discharging slit cover plate, sidewalls disposed on two sides of the lip cover;
the air inlet channel front body, the air-discharging slit cover plate, the lip cover and the sidewalls on the two sides together form an inner flow channel of the air inlet channel;
wherein a plurality of adjacent air-discharging cavities are arranged from front to back inside the air-discharging slit cover plate, the plurality of adjacent air-discharging cavities are separated by a partition plate, and a plurality of air-discharging slits disposed in the air-discharging slit cover plate connect the plurality of adjacent air-discharging cavities to the inner flow channel;
a lower half of each one of the plurality of adjacent air-discharging cavities has an air-discharging channel laterally penetrating both of the sidewalls; and
the stepless adjustable air release valve comprises:
a driver;
a rotatable shaft extending from the driver; and
a plurality of valve plates with a respective one of the plurality of valve plates disposed in each air-discharging channel, wherein the plurality of valve plates are mounted on the rotatable shaft and are rotated by means of the rotatable shaft between open and closed positions;
when the plurality of valve plates are rotated to the open position, the plurality of adjacent air-discharging cavities are communicated with the outside; and
when the plurality of valve plates are rotated to the closed position, the plurality of adjacent air-discharging cavities are closed by the plurality of valve plates.