Fuel feed circuit for an aircraft engine

Details Fuel feed circuit for an aircraft engine Fuel feed circuit for an aircraft engine

2011-05-31

2011-05-31

Cuff, Michael (Department: 3741)

Power plants

Combustion products used as motive fluid

Combustion products generator

Reexamination Certificate

active

07950232

ABSTRACT:
A head loss element is interposed between the outlet from the pump delivering high pressure fuel and the pipe feeding combustion chamber injectors. A servo-valve for feeding a hydraulic actuator of a variable-geometry component of the engine has an HP admission inlet connected to the outlet from the pump upstream from the head loss element and an LP outlet connected to the feed pipe downstream from the head loss element. Thus, the flow rate taken upstream from the head loss element for driving the actuator is compensated by the flow rate reinjected downstream from the head loss element, thereby avoiding any movement of the variable-geometry component giving rise to a disturbance in the flow rate delivered to the injectors.

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