FIELD: engines and pumps.
SUBSTANCE: invention relates to feed of controlled fuel flow into turbomachine combustion chamber. Fuel is forced at high pressure at controlled flow rate to combustion chamber via valve with position-to-position control variable-restriction pressure shutoff valve. Magnitude describing an actual fuel weight rate is calculated by computer proceeding from the data composed by pressure difference (ΔP) between shutoff valve inlet and outlet and shutoff valve throat, for example, described by shutoff valve slide position X. Said valve with position-to-position control has variable position calculated by said computer as the function of difference between calculated magnitude representing the actual weight rate and that representing the preset weight rate.
EFFECT: higher precision of fuel feed rate control, simplified architecture of control and shutoff assembly.
21 cl, 6 dwg
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