摘要
阐述了涡轴发动机自吸油特点,对比了国内外相关标准对涡轴发动机自吸油能力的评定要求和方法。研究了涡轴发动机油泵自吸油工作机理,总结出合理可行的自吸油试验方法,并进行了飞行试验验证,以确定影响飞行试验方法的各种因素,包括自吸供油的高度边界、各个高度自吸供油的速度范围和发动机状态。试验表明,影响发动机自吸油边界的主要因素为发动机状态和飞行高度,所提出的试验方案经验证可行且能够较为充分地验证发动机自吸油能力。
Characteristics of fuel self-suction of a turbo-shaft engine were stated. Then assessment require-ments and methods from relative standards abroad and home were compared. The working mechanism of fu-el self-suction was investigated and practicable test method was concluded and verified in the fuel self-suc-tion flight test of a turbo-shaft engine to determine the influences of different element（especially focus onthe altitude boundary, velocity range, engine condition of each altitude） on flight test. The results indicatethat engine condition and flight altitude are main factors affecting the boundary of fuel self-suction of en-gine. The test method proposed can almost fully validated fuel self-suction ability of turbo-shaft engines.
出处
《燃气涡轮试验与研究》
北大核心
2017年第1期14-17,62,共5页
Gas Turbine Experiment and Research
关键词
航空发动机
飞行试验
自吸油
发动机状态
飞行高度
燃油压力
试验验证
aero-engine
flight test
fuel self-suction
engine condition
flight altitude
fuel pressure
test verification
