单轴小涡喷发动机高空模拟起动试验研究

本文重点介绍该型发动机高空模拟点火起动试验技术 ,并着重对试验结果进行分析 ,为该型发动机成功地模拟空中起动试验提供试验依据和保证。

RESEARCH ON ALTITUDE SIMULATION OF STARTING FOR A SINGLE-SPOOL SMALL TURBOJET

Altitude simulation ignition tests of a single spool small turbojet starting were completed at an altitude test rig.Some conclusions from the test data analysis have been drawn.It is very useful to supply secondary oxygen jet for high altitude ignition and starting.The use of high energy igniter improves ignition and starting performance and reduces starting time.Fuel flow must be matched with air flow during the high altitude starting.The fuel flow must be controlled by the rotational velocity of the rotor to limit temperaturet 4 and to avoid hang up during the starting.