AUTOMATIC CONTROL SYSTEM OF GAS-TURBINE ENGINE Russian patent published in 1994 - IPC

FIELD: mechanical engineering; engines. SUBSTANCE: automatic control system has two fuel metering program assemblers 10, 12, second selector 11, two comparators 5, 6, adder 9, acceleration and speed stabilization channels. Metering of fuel at slow speeds is performed according to program of second assembler 12. Signal across second input of switch 8 follows changes in signal across its first input. When speed n₁ reaches the value at which transfer to closed control circuit takes place, changing over does not cause transient processes. Program of first fuel metering program assembler is selected to provide operation of closed control circuit at small deviation mode. Logic unit 7 implements logic of transition from engine acceleration open control circuit to closed control circuit. With closed control circuits in operation maximum consumption of fuel is limited by limiting signal Δ by signal D_l. EFFECT: enhanced reliability of control. 1 dwg