Hypersonic wind tunnel nozzle of scramjet engine and manufacturing method of hypersonic wind tunnel nozzle

• Main Authors: BO YOUFENG, CHANG LE, LIU WEI, QIAN XILE, YANG QIAN, ZHU XIANHAO, XU FAN
• Format: Patent
• Language: Chinese; English
• Published: 08.12.2023
• Subjects: AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL; COMBINED OPERATIONS; MACHINE TOOLS; MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING; MEASURING; MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PHYSICS; PUNCHING METAL; TESTING; TESTING STATIC OR DYNAMIC BALANCE OF MACHINES ORSTRUCTURES; TESTING STRUCTURES OR APPARATUS NOT OTHERWISE PROVIDED FOR; TRANSPORTING; UNIVERSAL MACHINE TOOLS

According to the hypersonic wind tunnel nozzle of the scramjet engine and the manufacturing method of the hypersonic wind tunnel nozzle, on the premise that an inlet of a fan-shaped combustion chamber is matched, airflow can be decelerated and pressurized from the Ma6 Mach number, and airflow parameters consistent with the conditions of the inlet of the combustion chamber of the engine are formed. Meanwhile, the active cooling structure design is adopted, the working time limit of the wind tunnel nozzle is prolonged, and high-temperature incoming flow ablation damage to the nozzle is avoided. Another purpose of the invention is to provide a manufacturing method of the wind tunnel nozzle, the nozzle is manufactured by adopting a mode of welding and assembling after segmented additive manufacturing, a set of technological process is formed, high-precision, high-reliability, high-efficiency and low-cost manufacturing of the heterogeneous nozzle is realized, and the performance of parts is superior to that of tra