活塞式航空发动机高空性能提升技术现状及发展趋势

Present Status and Development of High Altitude Performance Advancing Technologyof Aero Piston Engine

分析了活塞式航空发动机随海拔升高时性能下降规律,从进气、点火、喷油三个方面提出了活塞式航空发动机性能提升技术,如单级或多级涡轮增压技术、高能点火技术、双火花塞点火技术以及缸内直喷技术。研究表明,单级涡轮增压技术、双火花塞技术已成熟应用于航空发动机高空性能恢复,而多级增压、高能点火以及缸内直喷技术在未来必定会成为高空性能恢复技术的重要研究方向。

the performance degradation laws of aero piston engineagainst altitudes are analyzed. From three aspects of air intake, ignition and fuel injection, the technology of improving the performance of piston aero engine is presented, such as single -stage turbo- chargingtechnology, two- stage turbo - charging technology, high energy ignition technology, dual - spark plug technology and direct injection technology. The Research shows that single - stage turbo - charging technology and dual - spark plug technology have been widely applied in aero piston engine, and two- stage turbo- charging technology, high energy ignition technologyand direct injection technology will become an important research direction to recovery the performance of aero piston engine at high altitudes.