关键词: 冲压式喷气发动机;突扩型燃烧室;火焰稳定器;振荡燃烧

Abstract: In integral liquid fuel ramjet,the low frequency combustion oscillation is a very serious problem which greatly affects the normal operation of engine and fuel energy release .A great progress has been made in the enhancing of combustion stability and the improving of combustion process since the swirl ing chamber and flameholder was installed at combustor entrance. Ground hotting test results show that the combinative configuration of swirling chamber and flameholder can effectly eliminate the low frequency combustion oscillation and increase the combustion efficiency.

Key words: Ramjet engine;Dump combustion chamber;Flame holder;Oscillation burning