METHOD OF FUEL HEATING REDUCTION IN THE FUEL SYSTEM OF A GAS TURBINE ENGINE IN DEEP CHOKE MODES Russian patent published in 2017 - IPC F02C7/22 

FIELD: engines and pumps.

SUBSTANCE: invention can be used in their fuel supply systems to reduce the heating of fuel delivered to the injectors of the main and/or afterburner combustion chambers in deep choke modes. Reduced fuel heating in the gas turbine engine fuel system is performed by controlling the parameters of the centrifugal pump of the fuel system, which is used as the number of impeller speed and position of the maximum efficiency of the pump on the pump pressure characteristics flow axis, wherein the transition of the pump to the deep throttling modes to reduce fuel preheating fuel discharge characteristic is changed from the impeller, which is carried out by shifting the maximum efficiency of the pump to the minimum fuel consumption field, leaving a constant number of revolutions of the pump impeller.

EFFECT: invention makes it possible to increase the efficiency of fuel heating reduction in the fuel system of a GTE in deep choke modes.

6 dwg