国内首台最大推力液氧煤油火箭发动机成功总装交付

Core Viewpoint - The successful assembly and delivery of the "Thunder RS" rocket engine marks a significant advancement in China's aerospace capabilities, being the largest thrust open-cycle liquid oxygen kerosene rocket engine currently under development domestically [1][2] Group 1: Engine Specifications - The "Thunder RS" engine is a 130-ton liquid oxygen kerosene engine specifically designed for the "Yunhai-2" large launch vehicle [1] - The engine has a maximum ground thrust of 130 tons, equivalent to lifting over 100 small cars or 10 large trucks simultaneously [1] - The engine utilizes a liquid oxygen and kerosene propellant combination, offering high reliability, large thrust, multiple start capabilities, deep throttling, and environmentally friendly features [1] Group 2: Development and Testing - The "Thunder RS" engine completed half-system testing by the end of last year, validating the design correctness of key components such as the turbine pump and gas generator [1] - The engine's critical technologies, including startup, shutdown, and ignition sequencing, were successfully verified during testing [1] - Following its delivery, the engine will undergo full system hot testing to simulate real working conditions and validate its stability under high temperature and pressure [2] Group 3: Manufacturing Innovations - Over 85% of the "Thunder RS" engine's components are produced using 3D printing technology, which enhances reliability by reducing parts and welds [1] - 3D printing allows for complex structures to be formed in one piece, improving material utilization, lowering costs, and shortening manufacturing cycles [1] - The technology also enables lightweight designs and efficient cooling, making the engine suitable for extreme environments and rapid customization needs [1]