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飞机燃油系统的功用是储存燃油,并向发动机提供适当的燃油,促使其雾化和汽化,以便与空气均匀的混合,组成混合比适当的混合气,满足发动机在各种工作状况下的需要。其好坏直接影响到飞行的安全~([6])。PA44-180飞机是学院飞行训练的主力机型。近年来,出现了很多因为燃油系统问题导致的故障,其中比较典型的为汽化器故障,自飞机引进以来,广汉分院发生的汽化器故障100余起,严重影响了我院飞机的正常飞行训练。本项目主要针对PA44-180飞机汽化器出现的问题,归纳总结故障特点和规律,分析导致出现汽化器故障的原因。通过对汽化器故障的分析,找出在实际外场维护中减少汽化器故障出现的方法,提出外场维护建议。
The function of the aircraft fuel system is to store the fuel and to provide the engine with the proper fuel to atomize and vaporize it so as to be uniformly mixed with the air to form the proper mix of the mixture to meet the needs of the engine under all operating conditions. Its quality has a direct impact on flight safety ~ ([6]). The PA44-180 aircraft is the main model of college flight training. In recent years, there have been many failures due to fuel system problems. Among them, the typical one is the vaporizer failure. Since the introduction of the aircraft, more than 100 vaporizer failures have taken place in Guanghan Branch, seriously affecting the normal flight training of our aircraft. The project mainly aims at the problems of the PA44-180 aircraft carburetor, sums up the characteristics and rules of the faults, and analyzes the causes of the carburetor failure. Through the analysis of the vaporizer fault, find out the way to reduce the vaporizer fault in the actual field maintenance, and put forward the suggestion of field maintenance.