关键词: 重型运载火箭;氢氧发动机;高压补燃火箭发动机;航天飞机主发动机;助推火箭发动机;发展趋势分析

Abstract: n recent years, the space shuttle main engine (SSME) and the spacetransportation main engine (STME) have been improved in the U. S. A., in addition, the RD-170, Vulcain and LE-7 LRM have respectively been developed by theformer Soviet Union, Europe and Japan. According to these improvements and developments, this paper would inquire into the guide thinkings and design principlesof the various countries in the developments of the future large-scale LRM, andthen analyse the world’s new development trend in this field.

Key words: Heavy lift launch vehicle;Hydrogen oxygen enging;High pressers staged combustion rocket engine;Space shuttle main engine;Booster rocket enging;Trend analysis