FUEL METERING DEVICE OF TURBINE JET Russian patent published in 2015 - IPC F02C9/26 

FIELD: motors and pumps.

SUBSTANCE: fuel dosing device for turbine jet contains the first and second pulse-width modulators and the control unit connected to inputs of the first and second pulse-width modulators, the outputs of which through the respective electromagnetic valves are connected to the cavity of servo piston of the throttle needle and with the cavity of the constant pressure differential valve, and servo piston stem is connected with the throttle needle of variable section, at the expense of that the fuel supply camera is divided into two cavities, one of which is connected with the combustion chamber of the motor, and another one - with the fuel pump and constant pressure differential valve, and the control unit contains the series connected electronic regulator and logical device, connected with the inputs of the first and second pulse-width modulators, and provides the control switchover depending on the mismatch error value.

EFFECT: fuel saving at the expense of improvement of stability of static and response curves of the fuel metering device, improvement of precision of fuel metering in the turbine jet with simultaneous improvement of precision of the whole control system of the turbine jet.

3 dwg