METHOD OF AIRCRAFT CG POSITIONING AND FUEL UTILIZATION CONTROL SYSTEM Russian patent published in 1999 - IPC

FIELD: devices for delivery of fuel to aircraft power plant pertaining to aircraft trimming. SUBSTANCE: method includes utilization of fuel. Fuel is transferred to service compartment in the course of use of fuel by cruise engine. Transfer of fuel to service compartment from other fuel compartments, but for last trimming compartment is performed through before-service fuel compartment. Fuel from last trimming compartment is transferred directly to service compartment. Fuel utilization control system includes device for switching-on and switching-off drives of fuel transfer pumps. Device for switching-on the hydraulic drives of pumps transferring fuel from compartments of first and third sequences and pump transferring fuel to service compartment through before-service fuel compartment are made in form of pipe lines. Pipe lines connect hydraulic drives of each pump with outlet of high-pressure centrifugal fuel pump. High-pressure centrifugal pump has drive from aircraft cruise engine. Cut-off device of cruise engine is used as cutoff device of hydraulic drives of each pump. EFFECT: enhanced reliability of trimming the aircraft due to reliable switching-on and switching-off transfer pumps and enhanced reliability of controls. 11 cl, 1 dwg