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燃油系统气塞现象发生在燃油系统管路和附件内部,具有相当的隐蔽性,很容易被人们忽视。本文通过对台架试验发生的一起因燃油系统管路内部燃油温度过高造成气塞,导致发动机停车故障进行分析,确定燃油温度限定边界,提出改进措施,提高发动机工作稳定性和安全性。某型航空活塞发动机的台架试车,由安装在试验台架上方的燃油箱采用重力供油的方式给发动机供给燃油。发动机台架试验燃油从燃油箱中输出,经四通接头后分成两
Fuel system air plug phenomenon occurred in the fuel system piping and accessories inside, with considerable hidden, it is easy to be ignored. In this paper, a gas plug caused by the high temperature of the fuel oil in the pipeline of the fuel system is caused by the test of the bench, leading to the failure of the engine shutdown. The boundary of the fuel temperature is defined, and the improvement measures are proposed to improve the stability and safety of the engine. A certain type of aircraft engine piston bench test, by the fuel tank installed above the test bench gravity fuel supply to the engine fuel. Engine bench test The fuel is output from the fuel tank and split into two parts by a four-way connector