| 摘要 |
FIELD: mechanical engineering; aircraft gas-turbine engines. SUBSTANCE: proposed system is designed to control fuel delivery in gas-turbine engines. Each control channel contains meter of controlled value, main and check limit function shapers, control units and switches. First inputs of main and check limit function shapers and first inputs of channel control units are connected with outputs of corresponding controlled value meters, and second inputs, with output of air temperature meter at engine inlet and outlet and output of threshold element. Outputs of main and check limit function shapers are connected, respectively, with second and third inputs of channel control units whose outputs are connected with control inputs of switches whose operating inputs are connected, respectively, with outputs of main limit function shapers and inputs, with corresponding inputs of minimum fuel consumption selector. Outputs of channel control units are connected also with inputs of mode setter and with corresponding inputs of minimum fuel consumption selector, outputs of channel control units are connected with inputs of mode setter and with corresponding three inputs of failure signal shaper unit whose fourth input is connected with output of threshold element and fifth input is connected with output of control unit of fuel consumption control device whose first input is connected with output of selector and with input of fuel consumption control device, and second input is connected with output of actuator mechanism. Actuator mechanism control device is connected through switch with actuator mechanism. Control input of switch is connected with output of failure signal shaper unit. Output of mode setter is connected with input of program unit whose outputs are connected with additional inputs of main and check limit function shapers and with fourth inputs of channel control units. Such design of system makes it possible to improved reliability owing to provision of changeover to standby hydraulic control. EFFECT: enlarged operating capabilities. 1 dwg
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