Substantiation of the criteria for evaluation of the efficiency of the fuel supply system of the gas turbine engines

The article provides determinative and sub-priority criteria considered for solution of a multicriterion problem of the efficiency evaluation which characterizes implementation of a number of priority functions by the fuel flow automatic control system. These functions define switching of the automatic fuel flow in the fuel lines of the aircraft engines as well as possible fuel drain to the object drain system and its transverse centering. Presentation of the efficiency function as a function of two variables, which characterize the effect of the use of the control system regarding the determinative and one of the sub-priority indicators, permits to use a method of the stepwise evaluation of the efficiency.