The invention discloses an electric
metering pump for an aircraft engine. The electric
metering pump comprises a power supply interface, a
communication interface, a drive
control unit, and a
lubrication cooling pump, a motor and a main
oil pump which are coaxially connected, wherein the drive
control unit is connected with the power supply interface and the
communication interface and is used for driving the motor to operate and controlling the rotating speed according to a control command; the motor is used for driving the
lubrication cooling pump and the main
oil pump to rotate; the main
oil pump is used for pressurizing oil liquid which flows into the main oil pump; and the drive
control unit is used for controlling the
oil supply amount of the main oil pump by controlling the rotating speed of the motor. By the electric
metering pump, the
fuel oil increasing and metering functions of the aircraft engine is realized, the structure of an engine transmission accessory can be eliminated or greatly simplified, and the maximum section area and the weight of the engine can be reduced; in addition,
fuel oil does not flow back to an inlet or an
oil tank of the pump, so that a hydraulic oil channel is simplified, the
energy loss of a
system is reduced, the efficiency of the
system is improved, and the additional temperature rise of the
fuel oil is reduced or eliminated.