The 31st Research Institute of CASIC, China

Brief Biography:
Wenhui Ling, a researcher at the 31st Research Institute of CASIC, is an expert in scramjet engines and combined propulsion technology in China. He currently serves as the deputy chief engineer for national major projects and the chief scientist at the source of original technologies in the field of propulsion. With over thirty years of continuous research and engineering practice in this field, he has addressed various propulsion-related technical challenges. He has won two Second-Class National Science and Technology Progress Awards, two First-Class National Defense Technology Invention Awards, one First-Class National Defense Science and Technology Progress Award, six other provincial and ministerial-level awards, and holds more than 110 authorized patents. He enjoys special government allowances from the State Council and has received prestigious honors such as the Aerospace Laurel Award, the Qian Xuesen Outstanding Contribution Award, and the Outstanding Engineer Award.
 
Speech Title:
The Research Progress and Key Technologies of Scramjet Engines and Combined Propulsion Systems
 
Abstract:
The ramjet engine and hybrid propulsion system are key components in the development of aerospace technology and the realization of aerospace flight. The ramjet engine and hybrid propulsion system can span the domains of aviation, near-space, and even outer space in terms of altitude, while their speed ranges from stationary to hypersonic, and even to the first cosmic velocity. These systems are propulsion devices that integrate both aviation propulsion ("air") and space propulsion ("space") characteristics. They are primarily applied in three main fields: hypersonic missiles, near-space high-speed aircraft, and aerospace vehicles. This report introduces the research progress of ramjet engines and hybrid propulsion systems, and presents the core technological challenges and key technologies in six areas: "domain," "efficiency," "heat," "control," "regulation," and "measurement," in response to the future needs of aerospace vehicles for wider operational ranges, higher efficiency, faster speeds, greater convenience, lighter weight, and higher reliability. Finally, development recommendations are provided.