某型发动机外场温度高问题的排故

本文讨论了某型发动机温度高问题,并提出了解决这一故障的措施,包括在修理厂如何严格把关和外场如何合理调整,在可靠工作的前提下,尽量减少对飞机战术性能的影响。 

ELIMINATION OF OVERTEMPERATURE IN TURBOJET

This paper analyzes the reasons of the overtemperature in a turbojet andprovides the available measures to eliminate it, such as the strict requirements for the engine overhaul at the repair factory and the reasonable engine adjustment in the field maintenance. It is essential for the field maintenance to adjust properly the relationship between the turbine pressure ratio and the exhaust nozzle area, so that the turbine gas temperature comes down without afterburning temperature drop. In this way, the influence of the above problem on the operational performance of the engine can be minimized on condition that the engine reliability is guaranteed.