力擎一号是一款30吨级针栓式液氧煤油发动机，其推力室和发生器均采用先进的针栓式喷注器结构，并 依托不锈钢3D打印一体化成型工艺制造，具有燃烧效率高、工作稳定性好、起动及运行过程振动小等 显著优势。此外，发动机还具备深度变推力与可重复使用能力，将为力鸿二号可重复使用飞行器的研制 顺利推进奠定坚实的动力基础，也意味着可重复使用运载火箭关键技术取得重要突破。 据透露，力擎二号110吨级针栓式液氧煤油发动机也已进入关键研制阶段，目前正稳步筹备200秒长程试 车。 记者了解到，中科宇航已通过力鸿一号飞行器首次亚轨道飞行试验，成功实现返回式载荷舱的再入大气 层返回减速与回收验证，以及飞行器子级返回精确落点控制技术验证，着力解决微重力科学实验和近太 空原位探测等应用需求。后续将通过力鸿二号可重复使用飞行器，采用3台力擎一号针栓式液氧煤油发 动机作为主动力，计划今年进行百公里回收技术验证，打造高性价比的太空试验和太空智造平台。 新京报讯(记者张建林)记者获悉，近日，中科宇航自主研制的力擎一号针栓式液氧煤油发动机圆满完成 摇摆及变推力试车考核，此次试车时长合计330秒，该型发动机累计试车总时长超1300秒，覆盖可重复 使用运载 ...

Core Viewpoint - The successful testing of the "Liqing No. 1" engine marks a significant advancement in China's aerospace technology, particularly in the field of variable thrust control for liquid oxygen and kerosene engines [1][3]. Group 1: Engine Development - The "Liqing No. 1" engine has completed a total of 330 seconds of testing, bringing its cumulative test duration to over 1300 seconds, which exceeds the flight duration of reusable rocket stages by more than five times [1]. - The engine has achieved a deep variable thrust adjustment capability from 100% to 50%, with a thrust precision adjustment capability at the 1% level, indicating industry-leading performance metrics [1][3]. Group 2: Future Plans - The "Liqing No. 2" engine, with a thrust capacity of 110 tons, is currently in a critical development phase, with preparations underway for a 200-second long-range test [1]. - The company plans to utilize three "Liqing No. 1" engines as the main power for the "Lihong No. 2" reusable spacecraft, aiming to conduct a 100-kilometer recovery technology verification this year [3].