深度变推力液氧煤油发动机初步方案研究

摘要

The scheme of liquid oxygen and kerosene deep throttling engine was proposed based on the analysis of different factors sensitivity to thrust and deep throttling scheme of the engine at home and abroad to power the manned lunar lander. The key technology and resolving approach were pro⁃pounded such as deep throttling thrust technic of pump⁃feeding engine, deep throttling injector, and cooling of the chamber etc.%针对载人登月着陆器对高性能深度变推力动力的需求，结合国内外探月及空间探索变推力发动机方案与最新进展，在我国补燃循环液氧煤油发动机高性能和具有一定推力调节能力的基础上，基于发动机推力调节敏感度分析，提出推力敏感度强／调节方案简单的泵压式深度变推力液氧煤油发动机方案；同时针对液氧煤油发动机深度变推力调节特性，提出了大范围推力调节、大变比高性能喷注器、宽范围推力室可靠冷却及高性能、稳定性能涡轮泵等关键技术及其解决途径。