GAS TURBINE ENGINE FUEL FEED AND CONTROL SYSTEM Russian patent published in 2002 - IPC

FIELD: aircraft industry. SUBSTANCE: invention relates to aircraft fuel feed control systems. Said system has electrically driven pumping unit controlled in response to speed of rotation, and electronic control unit. Pumping unit has pump and volumetric metering device series connected to fuel system. Metering device is furnished with constant pressure differential maintaining element. Said components of pumping unit have common shaft driven by electric motor. At delivery of fuel from to volumetric metering device and further on to outlet and engine nozzles, owing to maintaining constant pressure differential across metering device, internal overflows in said device is preserved irrespective of pressure in nozzles. EFFECT: increased accuracy of metering, enlarged sphere of application. 5 cl, 2 dwg