DEVICE FOR CONTROL OF FUEL SUPPLY TO COMBUSTION CHAMBER OF GAS TURBINE ENGINE Russian patent published in 2025 - IPC F02C9/26 

FIELD: engines.

SUBSTANCE: invention relates to control of gas turbine engines, in particular to control of fuel supply, and can be used in development of devices for control of fuel supply to combustion chamber of gas turbine engine. Device for control of fuel supply to combustion chamber of gas turbine engine contains several fuel manifolds to which gas is supplied via pipeline. One of them is intended for supply of fuel to pilot burners, where diffusion burning takes place, and the rest are intended for supply of fuel mixed with air to the main burners, in which homogeneous burning takes place. Besides, on the fuel supply pipeline before the manifolds there installed is a flow meter and a summing fuel metering device, then on the same pipeline there installed are three-way valves for control of fuel supply through the pipeline to the manifold to the standby burners and to branches from the pipeline to the manifolds to the main burners. Technical result is achieved due to the fact that in the bypass of the summing batcher on the pipeline there is a bypass, through which fuel is supplied to the manifold to the standby burners, at the same time the bypass consists of the main and auxiliary pipelines, a control valve is installed on the main pipeline of the bypass, and a throttle measuring washer is installed on the auxiliary one.

EFFECT: reduced level of nitrogen oxide emissions at exhaust from gas turbine engine and prevention of combustion chamber extinction at sharp decrease of fuel supply into it.

1 cl, 1 dwg