AUTOMATIC-CONTROL SYSTEM FOR FUEL SUPPLY TO GAS- TURBINE ENGINE COMBUSTION CHAMBER Russian patent published in 1999 - IPC

FIELD: automatic control of gas-turbine engines. SUBSTANCE: system has two-position valve box with two opposite seats 23, 24 mounted in center of sleeve 32 and gates of which one is, essentially, piston 25 carrying flexible member 26 that holds pin 27 and other one is piston 28 with member 29 holding pin 30 that comes in contact with pin 27 and both move in a spaced relation through central passage 33 communicating with hole 34 in sleeve 32. Seats 23 and 24 are coupled with command space 20 of control-valve servo piston 14. Piston 25 is loaded with spring 31 and coupled with inlet line ; piston 28 contacts stem 17 of electromagnetic valve 18 and is coupled with drain duct 21 directly communicating with control valve seat 11. EFFECT: simplified design and improved operating reliability of entire system. 2 cl, 2 dwg