跨世纪航空发动机技术的发展和建议

Development and Suggestion on Trans-Century Aviation Engine Technology

自40年代初燃气涡轮发动机问世以来,飞机的速度、高度和机动性发生了历史性飞跃,并跨入了超音速飞行的新时代。到21世纪初,战斗机及其发动机经历4次更新换代。目前现役主力机种是第三代,推重比为8一级,还在不断改进改型;第四代推重比10一级发动机已进入首飞,预计2003年前后装备部队;第五代推重比15～20一级发动机,可望在2020年研制成功。世界航空发动机技术呈加速发展态势,面对21世纪和知识经济时代,如何抓住机遇、加快发展,本文提出几项建议供领导参考。

Tremendous changes on velocity, height and flexibility of airplane have taken place since the gas turbine engine was first invented in 1940's . Now airplane has stepped into the supersonic flight era . Warflighter and it's engine will go through four times improvements up to the beginning of 21 Century. The main airplane is the third generation at present and it's thrust-weight ratio is 8. It will be improved Continually. The fourth generation engine (thrust-weight ratio 10) has gotten into the test flight. It is estimated the fourth generation engine would be used by air force in 2003. The fifth generation engine (thrust-weight ratio 15~20) will be invented by 2020. The world aviation engine technology is acceleration development. Facet 21 Century and the knowledge-economy era, how to catch chance and accelerate, some suggestions are shown in this paper for leaders reference.